r599:f63e87b9748e
Tue, 21 Apr 2009 11:34:49
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-327.15 -226.083 -321.098 -234.777 -269.576 -308.795 curveto stroke |
|
| 115 |
newpath -262.72 -318.644 moveto -272.859 -311.081 lineto -266.293 -306.51 lineto closepath fill |
|
| 116 |
2 setlinewidth 1 0 0 setrgbcolor newpath |
|
| 117 |
5.84406 175.322 moveto |
|
| 118 |
-76.0754 267.926 -83.1051 275.873 -152.172 353.948 curveto stroke |
|
| 119 |
newpath -160.122 362.936 moveto -149.176 356.598 lineto -155.168 351.298 lineto closepath fill |
|
| 120 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 121 |
169.478 311.683 moveto |
|
| 122 |
96.8003 251.119 88.6819 244.353 30.4273 195.808 curveto stroke |
|
| 123 |
newpath 21.2086 188.126 moveto 27.8666 198.881 lineto 32.988 192.735 lineto closepath fill |
|
| 124 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 125 |
342.851 111.037 moveto |
|
| 126 |
263.766 202.563 256.831 210.589 190.4 287.47 curveto stroke |
|
| 127 |
newpath 182.554 296.55 moveto 193.427 290.085 lineto 187.373 284.855 lineto closepath fill |
|
| 128 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 129 |
5.84406 175.322 moveto |
|
| 130 |
163.16 145.314 173.605 143.321 311.418 117.033 curveto stroke |
|
| 131 |
newpath 323.205 114.784 moveto 310.668 113.104 lineto 312.167 120.962 lineto closepath fill |
|
| 132 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 133 |
342.851 111.037 moveto |
|
| 134 |
497.255 2.58683 505.964 -3.53033 643.932 -100.436 curveto stroke |
|
| 135 |
newpath 653.752 -107.334 moveto 641.633 -103.71 lineto 646.231 -97.163 lineto closepath fill |
|
| 136 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 137 |
364.28 -222.074 moveto |
|
| 138 |
354.298 -66.9063 353.616 -56.2971 344.905 79.1029 curveto stroke |
|
| 139 |
newpath 344.135 91.0781 moveto 348.897 79.3597 lineto 340.914 78.8461 lineto closepath fill |
|
| 140 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 141 |
670.118 -118.829 moveto |
|
| 142 |
528.037 -166.793 517.967 -170.192 394.599 -211.839 curveto stroke |
|
| 143 |
newpath 383.229 -215.677 moveto 393.32 -208.049 lineto 395.878 -215.629 lineto closepath fill |
|
| 144 |
2 setlinewidth 1 0 0 setrgbcolor newpath |
|
| 145 |
-105.193 -261.035 moveto |
|
| 146 |
118.401 -242.479 129.015 -241.598 332.39 -224.721 curveto stroke |
|
| 147 |
newpath 344.348 -223.728 moveto 332.72 -228.707 lineto 332.059 -220.734 lineto closepath fill |
|
| 148 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 149 |
-105.193 -261.035 moveto |
|
| 150 |
-160.867 -161.176 -166.028 -151.918 -212.336 -68.858 curveto stroke |
|
| 151 |
newpath -218.179 -58.3769 moveto -208.842 -66.9102 lineto -215.829 -70.8058 lineto closepath fill |
|
| 152 |
2 setlinewidth 0 0 1 setrgbcolor newpath |
|
| 153 |
-227.918 -40.9084 moveto |
|
| 154 |
-298.35 -82.4884 -307.42 -87.8432 -362.048 -120.093 curveto stroke |
|
| 155 |
newpath -372.381 -126.193 moveto -364.081 -116.648 lineto -360.014 -123.537 lineto closepath fill |
|
| 156 |
grestore |
|
| 157 |
%Nodes: |
|
| 158 |
gsave |
|
| 159 |
-389.604 -136.361 20 0 1 0 nc |
|
| 160 |
-227.918 -40.9084 20 0 1 0 nc |
|
| 161 |
-105.193 -261.035 20 0 1 0 nc |
|
| 162 |
364.28 -222.074 20 1 1 0 nc |
|
| 163 |
670.118 -118.829 20 1 1 0 nc |
|
| 164 |
342.851 111.037 20 1 1 0 nc |
|
| 165 |
5.84406 175.322 20 1 1 0 nc |
|
| 166 |
169.478 311.683 20 1 1 0 nc |
|
| 167 |
-173.374 377.916 20 1 0 1 nc |
|
| 168 |
-251.294 -335.059 20 0 1 0 nc |
|
| 169 |
-266.879 114.933 20 0 0 0 nc |
|
| 170 |
-368.176 331.163 20 0 0 0 nc |
|
| 171 |
-490.901 120.777 20 0 0 0 nc |
|
| 172 |
-574.666 -153.893 20 1 0 0 nc |
|
| 173 |
-675.963 -3.89604 20 1 0 0 nc |
|
| 174 |
-465.576 -42.8564 20 1 0 0 nc |
|
| 175 |
44.8044 15.5841 20 0 0 1 nc |
|
| 176 |
157.79 -130.517 20 0 0 1 nc |
|
| 177 |
218.178 27.2723 20 0 0 1 nc |
|
| 178 |
grestore |
|
| 179 |
grestore |
|
| 180 |
showpage |
| 1 | 1 |
SET(PACKAGE_NAME ${PROJECT_NAME})
|
| 2 | 2 |
SET(PACKAGE_VERSION ${PROJECT_VERSION})
|
| 3 | 3 |
SET(abs_top_srcdir ${PROJECT_SOURCE_DIR})
|
| 4 | 4 |
SET(abs_top_builddir ${PROJECT_BINARY_DIR})
|
| 5 | 5 |
|
| 6 | 6 |
CONFIGURE_FILE( |
| 7 | 7 |
${PROJECT_SOURCE_DIR}/doc/Doxyfile.in
|
| 8 | 8 |
${PROJECT_BINARY_DIR}/doc/Doxyfile
|
| 9 | 9 |
@ONLY) |
| 10 | 10 |
|
| 11 | 11 |
IF(DOXYGEN_EXECUTABLE AND GHOSTSCRIPT_EXECUTABLE) |
| 12 | 12 |
FILE(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/)
|
| 13 | 13 |
IF(UNIX) |
| 14 | 14 |
ADD_CUSTOM_TARGET(html |
| 15 | 15 |
COMMAND rm -rf gen-images |
| 16 | 16 |
COMMAND mkdir gen-images |
| 17 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/bipartite_matching.png ${CMAKE_CURRENT_SOURCE_DIR}/images/bipartite_matching.eps
|
|
| 18 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/bipartite_partitions.png ${CMAKE_CURRENT_SOURCE_DIR}/images/bipartite_partitions.eps
|
|
| 19 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/connected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/connected_components.eps
|
|
| 20 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/edge_biconnected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/edge_biconnected_components.eps
|
|
| 17 | 21 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/grid_graph.png ${CMAKE_CURRENT_SOURCE_DIR}/images/grid_graph.eps
|
| 22 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/node_biconnected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/node_biconnected_components.eps
|
|
| 18 | 23 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_0.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_0.eps
|
| 19 | 24 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_1.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_1.eps
|
| 20 | 25 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_2.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_2.eps
|
| 21 | 26 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_3.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_3.eps
|
| 22 | 27 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_4.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_4.eps
|
| 28 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/strongly_connected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/strongly_connected_components.eps
|
|
| 23 | 29 |
COMMAND rm -rf html |
| 24 | 30 |
COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile
|
| 25 | 31 |
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
|
| 26 | 32 |
ELSEIF(WIN32) |
| 27 | 33 |
ADD_CUSTOM_TARGET(html |
| 28 | 34 |
COMMAND if exist gen-images rmdir /s /q gen-images |
| 29 | 35 |
COMMAND mkdir gen-images |
| 36 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/bipartite_matching.png ${CMAKE_CURRENT_SOURCE_DIR}/images/bipartite_matching.eps
|
|
| 37 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/bipartite_partitions.png ${CMAKE_CURRENT_SOURCE_DIR}/images/bipartite_partitions.eps
|
|
| 38 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/connected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/connected_components.eps
|
|
| 39 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/edge_biconnected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/edge_biconnected_components.eps
|
|
| 40 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/grid_graph.png ${CMAKE_CURRENT_SOURCE_DIR}/images/grid_graph.eps
|
|
| 41 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/node_biconnected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/node_biconnected_components.eps
|
|
| 30 | 42 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_0.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_0.eps
|
| 31 | 43 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_1.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_1.eps
|
| 32 | 44 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_2.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_2.eps
|
| 33 | 45 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_3.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_3.eps
|
| 34 | 46 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/nodeshape_4.png ${CMAKE_CURRENT_SOURCE_DIR}/images/nodeshape_4.eps
|
| 47 |
COMMAND ${GHOSTSCRIPT_EXECUTABLE} -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sDEVICE=pngalpha -r18 -sOutputFile=gen-images/strongly_connected_components.png ${CMAKE_CURRENT_SOURCE_DIR}/images/strongly_connected_components.eps
|
|
| 35 | 48 |
COMMAND if exist html rmdir /s /q html |
| 36 | 49 |
COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile
|
| 37 | 50 |
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
|
| 38 | 51 |
ENDIF(UNIX) |
| 39 | 52 |
INSTALL( |
| 40 | 53 |
DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/
|
| 41 | 54 |
DESTINATION share/doc |
| 42 | 55 |
COMPONENT html_documentation) |
| 43 | 56 |
ENDIF(DOXYGEN_EXECUTABLE AND GHOSTSCRIPT_EXECUTABLE) |
| 1 | 1 |
EXTRA_DIST += \ |
| 2 | 2 |
doc/Doxyfile.in \ |
| 3 | 3 |
doc/DoxygenLayout.xml \ |
| 4 | 4 |
doc/coding_style.dox \ |
| 5 | 5 |
doc/dirs.dox \ |
| 6 | 6 |
doc/groups.dox \ |
| 7 | 7 |
doc/lgf.dox \ |
| 8 | 8 |
doc/license.dox \ |
| 9 | 9 |
doc/mainpage.dox \ |
| 10 | 10 |
doc/migration.dox \ |
| 11 | 11 |
doc/named-param.dox \ |
| 12 | 12 |
doc/namespaces.dox \ |
| 13 | 13 |
doc/html \ |
| 14 | 14 |
doc/CMakeLists.txt |
| 15 | 15 |
|
| 16 | 16 |
DOC_EPS_IMAGES18 = \ |
| 17 | 17 |
grid_graph.eps \ |
| 18 | 18 |
nodeshape_0.eps \ |
| 19 | 19 |
nodeshape_1.eps \ |
| 20 | 20 |
nodeshape_2.eps \ |
| 21 | 21 |
nodeshape_3.eps \ |
| 22 | 22 |
nodeshape_4.eps |
| 23 | 23 |
|
| 24 |
DOC_EPS_IMAGES27 = \ |
|
| 25 |
bipartite_matching.eps \ |
|
| 26 |
bipartite_partitions.eps \ |
|
| 27 |
connected_components.eps \ |
|
| 28 |
edge_biconnected_components.eps \ |
|
| 29 |
node_biconnected_components.eps \ |
|
| 30 |
strongly_connected_components.eps |
|
| 31 |
|
|
| 24 | 32 |
DOC_EPS_IMAGES = \ |
| 25 |
$(DOC_EPS_IMAGES18) |
|
| 33 |
$(DOC_EPS_IMAGES18) \ |
|
| 34 |
$(DOC_EPS_IMAGES27) |
|
| 26 | 35 |
|
| 27 | 36 |
DOC_PNG_IMAGES = \ |
| 28 | 37 |
$(DOC_EPS_IMAGES:%.eps=doc/gen-images/%.png) |
| 29 | 38 |
|
| 30 | 39 |
EXTRA_DIST += $(DOC_EPS_IMAGES:%=doc/images/%) |
| 31 | 40 |
|
| 32 | 41 |
doc/html: |
| 33 | 42 |
$(MAKE) $(AM_MAKEFLAGS) html |
| 34 | 43 |
|
| 35 | 44 |
GS_COMMAND=gs -dNOPAUSE -dBATCH -q -dEPSCrop -dTextAlphaBits=4 -dGraphicsAlphaBits=4 |
| 36 | 45 |
|
| 37 | 46 |
$(DOC_EPS_IMAGES18:%.eps=doc/gen-images/%.png): doc/gen-images/%.png: doc/images/%.eps |
| 38 | 47 |
-mkdir doc/gen-images |
| 39 | 48 |
if test ${gs_found} = yes; then \
|
| 40 | 49 |
$(GS_COMMAND) -sDEVICE=pngalpha -r18 -sOutputFile=$@ $<; \ |
| 41 | 50 |
else \ |
| 42 | 51 |
echo; \ |
| 43 | 52 |
echo "Ghostscript not found."; \ |
| 44 | 53 |
echo; \ |
| 45 | 54 |
exit 1; \ |
| 46 | 55 |
fi |
| 47 | 56 |
|
| 57 |
$(DOC_EPS_IMAGES27:%.eps=doc/gen-images/%.png): doc/gen-images/%.png: doc/images/%.eps |
|
| 58 |
-mkdir doc/gen-images |
|
| 59 |
if test ${gs_found} = yes; then \
|
|
| 60 |
$(GS_COMMAND) -sDEVICE=pngalpha -r27 -sOutputFile=$@ $<; \ |
|
| 61 |
else \ |
|
| 62 |
echo; \ |
|
| 63 |
echo "Ghostscript not found."; \ |
|
| 64 |
echo; \ |
|
| 65 |
exit 1; \ |
|
| 66 |
fi |
|
| 67 |
|
|
| 48 | 68 |
html-local: $(DOC_PNG_IMAGES) |
| 49 | 69 |
if test ${doxygen_found} = yes; then \
|
| 50 | 70 |
cd doc; \ |
| 51 | 71 |
doxygen Doxyfile; \ |
| 52 | 72 |
cd ..; \ |
| 53 | 73 |
else \ |
| 54 | 74 |
echo; \ |
| 55 | 75 |
echo "Doxygen not found."; \ |
| 56 | 76 |
echo; \ |
| 57 | 77 |
exit 1; \ |
| 58 | 78 |
fi |
| 59 | 79 |
|
| 60 | 80 |
clean-local: |
| 61 | 81 |
-rm -rf doc/html |
| 62 | 82 |
-rm -f doc/doxygen.log |
| 63 | 83 |
-rm -f $(DOC_PNG_IMAGES) |
| 64 | 84 |
-rm -rf doc/gen-images |
| 65 | 85 |
|
| 66 | 86 |
update-external-tags: |
| 67 | 87 |
wget -O doc/libstdc++.tag.tmp http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/libstdc++.tag && \ |
| 68 | 88 |
mv doc/libstdc++.tag.tmp doc/libstdc++.tag || \ |
| 69 | 89 |
rm doc/libstdc++.tag.tmp |
| 70 | 90 |
|
| 71 | 91 |
install-html-local: doc/html |
| ... | ... |
@@ -386,49 +386,49 @@ |
| 386 | 386 |
|
| 387 | 387 |
The \e minimum \e cut \e problem is to find a non-empty and non-complete |
| 388 | 388 |
\f$X\f$ subset of the nodes with minimum overall capacity on |
| 389 | 389 |
outgoing arcs. Formally, there is a \f$G=(V,A)\f$ digraph, a |
| 390 | 390 |
\f$cap: A\rightarrow\mathbf{R}^+_0\f$ capacity function. The minimum
|
| 391 | 391 |
cut is the \f$X\f$ solution of the next optimization problem: |
| 392 | 392 |
|
| 393 | 393 |
\f[ \min_{X \subset V, X\not\in \{\emptyset, V\}}
|
| 394 | 394 |
\sum_{uv\in A, u\in X, v\not\in X}cap(uv) \f]
|
| 395 | 395 |
|
| 396 | 396 |
LEMON contains several algorithms related to minimum cut problems: |
| 397 | 397 |
|
| 398 | 398 |
- \ref HaoOrlin "Hao-Orlin algorithm" for calculating minimum cut |
| 399 | 399 |
in directed graphs. |
| 400 | 400 |
- \ref NagamochiIbaraki "Nagamochi-Ibaraki algorithm" for |
| 401 | 401 |
calculating minimum cut in undirected graphs. |
| 402 | 402 |
- \ref GomoryHu "Gomory-Hu tree computation" for calculating |
| 403 | 403 |
all-pairs minimum cut in undirected graphs. |
| 404 | 404 |
|
| 405 | 405 |
If you want to find minimum cut just between two distinict nodes, |
| 406 | 406 |
see the \ref max_flow "maximum flow problem". |
| 407 | 407 |
*/ |
| 408 | 408 |
|
| 409 | 409 |
/** |
| 410 |
@defgroup |
|
| 410 |
@defgroup graph_properties Connectivity and Other Graph Properties |
|
| 411 | 411 |
@ingroup algs |
| 412 | 412 |
\brief Algorithms for discovering the graph properties |
| 413 | 413 |
|
| 414 | 414 |
This group contains the algorithms for discovering the graph properties |
| 415 | 415 |
like connectivity, bipartiteness, euler property, simplicity etc. |
| 416 | 416 |
|
| 417 | 417 |
\image html edge_biconnected_components.png |
| 418 | 418 |
\image latex edge_biconnected_components.eps "bi-edge-connected components" width=\textwidth |
| 419 | 419 |
*/ |
| 420 | 420 |
|
| 421 | 421 |
/** |
| 422 | 422 |
@defgroup planar Planarity Embedding and Drawing |
| 423 | 423 |
@ingroup algs |
| 424 | 424 |
\brief Algorithms for planarity checking, embedding and drawing |
| 425 | 425 |
|
| 426 | 426 |
This group contains the algorithms for planarity checking, |
| 427 | 427 |
embedding and drawing. |
| 428 | 428 |
|
| 429 | 429 |
\image html planar.png |
| 430 | 430 |
\image latex planar.eps "Plane graph" width=\textwidth |
| 431 | 431 |
*/ |
| 432 | 432 |
|
| 433 | 433 |
/** |
| 434 | 434 |
@defgroup matching Matching Algorithms |
| ... | ... |
@@ -2171,48 +2171,51 @@ |
| 2171 | 2171 |
explicit EdgeMap(const UndirectorBase<DGR>& adaptor) |
| 2172 | 2172 |
: Parent(*adaptor._digraph) {}
|
| 2173 | 2173 |
|
| 2174 | 2174 |
EdgeMap(const UndirectorBase<DGR>& adaptor, const V& value) |
| 2175 | 2175 |
: Parent(*adaptor._digraph, value) {}
|
| 2176 | 2176 |
|
| 2177 | 2177 |
private: |
| 2178 | 2178 |
EdgeMap& operator=(const EdgeMap& cmap) {
|
| 2179 | 2179 |
return operator=<EdgeMap>(cmap); |
| 2180 | 2180 |
} |
| 2181 | 2181 |
|
| 2182 | 2182 |
template <typename CMap> |
| 2183 | 2183 |
EdgeMap& operator=(const CMap& cmap) {
|
| 2184 | 2184 |
Parent::operator=(cmap); |
| 2185 | 2185 |
return *this; |
| 2186 | 2186 |
} |
| 2187 | 2187 |
|
| 2188 | 2188 |
}; |
| 2189 | 2189 |
|
| 2190 | 2190 |
typedef typename ItemSetTraits<DGR, Node>::ItemNotifier NodeNotifier; |
| 2191 | 2191 |
NodeNotifier& notifier(Node) const { return _digraph->notifier(Node()); }
|
| 2192 | 2192 |
|
| 2193 | 2193 |
typedef typename ItemSetTraits<DGR, Edge>::ItemNotifier EdgeNotifier; |
| 2194 | 2194 |
EdgeNotifier& notifier(Edge) const { return _digraph->notifier(Edge()); }
|
| 2195 |
|
|
| 2196 |
typedef EdgeNotifier ArcNotifier; |
|
| 2197 |
ArcNotifier& notifier(Arc) const { return _digraph->notifier(Edge()); }
|
|
| 2195 | 2198 |
|
| 2196 | 2199 |
protected: |
| 2197 | 2200 |
|
| 2198 | 2201 |
UndirectorBase() : _digraph(0) {}
|
| 2199 | 2202 |
|
| 2200 | 2203 |
DGR* _digraph; |
| 2201 | 2204 |
|
| 2202 | 2205 |
void initialize(DGR& digraph) {
|
| 2203 | 2206 |
_digraph = &digraph; |
| 2204 | 2207 |
} |
| 2205 | 2208 |
|
| 2206 | 2209 |
}; |
| 2207 | 2210 |
|
| 2208 | 2211 |
/// \ingroup graph_adaptors |
| 2209 | 2212 |
/// |
| 2210 | 2213 |
/// \brief Adaptor class for viewing a digraph as an undirected graph. |
| 2211 | 2214 |
/// |
| 2212 | 2215 |
/// Undirector adaptor can be used for viewing a digraph as an undirected |
| 2213 | 2216 |
/// graph. All arcs of the underlying digraph are showed in the |
| 2214 | 2217 |
/// adaptor as an edge (and also as a pair of arcs, of course). |
| 2215 | 2218 |
/// This adaptor conforms to the \ref concepts::Graph "Graph" concept. |
| 2216 | 2219 |
/// |
| 2217 | 2220 |
/// The adapted digraph can also be modified through this adaptor |
| 2218 | 2221 |
/// by adding or removing nodes or edges, unless the \c GR template |
| ... | ... |
@@ -52,51 +52,51 @@ |
| 52 | 52 |
template <typename PR, typename IM, typename Comp = std::less<PR> > |
| 53 | 53 |
class BinHeap {
|
| 54 | 54 |
|
| 55 | 55 |
public: |
| 56 | 56 |
///\e |
| 57 | 57 |
typedef IM ItemIntMap; |
| 58 | 58 |
///\e |
| 59 | 59 |
typedef PR Prio; |
| 60 | 60 |
///\e |
| 61 | 61 |
typedef typename ItemIntMap::Key Item; |
| 62 | 62 |
///\e |
| 63 | 63 |
typedef std::pair<Item,Prio> Pair; |
| 64 | 64 |
///\e |
| 65 | 65 |
typedef Comp Compare; |
| 66 | 66 |
|
| 67 | 67 |
/// \brief Type to represent the items states. |
| 68 | 68 |
/// |
| 69 | 69 |
/// Each Item element have a state associated to it. It may be "in heap", |
| 70 | 70 |
/// "pre heap" or "post heap". The latter two are indifferent from the |
| 71 | 71 |
/// heap's point of view, but may be useful to the user. |
| 72 | 72 |
/// |
| 73 | 73 |
/// The item-int map must be initialized in such way that it assigns |
| 74 | 74 |
/// \c PRE_HEAP (<tt>-1</tt>) to any element to be put in the heap. |
| 75 | 75 |
enum State {
|
| 76 |
IN_HEAP = 0, ///< \e |
|
| 77 |
PRE_HEAP = -1, ///< \e |
|
| 78 |
|
|
| 76 |
IN_HEAP = 0, ///< = 0. |
|
| 77 |
PRE_HEAP = -1, ///< = -1. |
|
| 78 |
POST_HEAP = -2 ///< = -2. |
|
| 79 | 79 |
}; |
| 80 | 80 |
|
| 81 | 81 |
private: |
| 82 | 82 |
std::vector<Pair> _data; |
| 83 | 83 |
Compare _comp; |
| 84 | 84 |
ItemIntMap &_iim; |
| 85 | 85 |
|
| 86 | 86 |
public: |
| 87 | 87 |
/// \brief The constructor. |
| 88 | 88 |
/// |
| 89 | 89 |
/// The constructor. |
| 90 | 90 |
/// \param map should be given to the constructor, since it is used |
| 91 | 91 |
/// internally to handle the cross references. The value of the map |
| 92 | 92 |
/// must be \c PRE_HEAP (<tt>-1</tt>) for every item. |
| 93 | 93 |
explicit BinHeap(ItemIntMap &map) : _iim(map) {}
|
| 94 | 94 |
|
| 95 | 95 |
/// \brief The constructor. |
| 96 | 96 |
/// |
| 97 | 97 |
/// The constructor. |
| 98 | 98 |
/// \param map should be given to the constructor, since it is used |
| 99 | 99 |
/// internally to handle the cross references. The value of the map |
| 100 | 100 |
/// should be PRE_HEAP (-1) for each element. |
| 101 | 101 |
/// |
| 102 | 102 |
/// \param comp The comparator function object. |
| 1 | 1 |
/* -*- mode: C++; indent-tabs-mode: nil; -*- |
| 2 | 2 |
* |
| 3 | 3 |
* This file is a part of LEMON, a generic C++ optimization library. |
| 4 | 4 |
* |
| 5 | 5 |
* Copyright (C) 2003-2009 |
| 6 | 6 |
* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
| 7 | 7 |
* (Egervary Research Group on Combinatorial Optimization, EGRES). |
| 8 | 8 |
* |
| 9 | 9 |
* Permission to use, modify and distribute this software is granted |
| 10 | 10 |
* provided that this copyright notice appears in all copies. For |
| 11 | 11 |
* precise terms see the accompanying LICENSE file. |
| 12 | 12 |
* |
| 13 | 13 |
* This software is provided "AS IS" with no warranty of any kind, |
| 14 | 14 |
* express or implied, and with no claim as to its suitability for any |
| 15 | 15 |
* purpose. |
| 16 | 16 |
* |
| 17 | 17 |
*/ |
| 18 | 18 |
|
| 19 | 19 |
#ifndef LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H |
| 20 | 20 |
#define LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H |
| 21 | 21 |
|
| 22 | 22 |
#include <lemon/core.h> |
| 23 | 23 |
#include <lemon/error.h> |
| 24 | 24 |
|
| 25 |
#include <lemon/bits/default_map.h> |
|
| 26 |
|
|
| 27 | 25 |
namespace lemon {
|
| 28 | 26 |
|
| 29 | 27 |
template <typename _Digraph> |
| 30 | 28 |
class DigraphAdaptorExtender : public _Digraph {
|
| 31 | 29 |
public: |
| 32 | 30 |
|
| 33 | 31 |
typedef _Digraph Parent; |
| 34 | 32 |
typedef _Digraph Digraph; |
| 35 | 33 |
typedef DigraphAdaptorExtender Adaptor; |
| 36 | 34 |
|
| 37 | 35 |
// Base extensions |
| 38 | 36 |
|
| 39 | 37 |
typedef typename Parent::Node Node; |
| 40 | 38 |
typedef typename Parent::Arc Arc; |
| 41 | 39 |
|
| 42 | 40 |
int maxId(Node) const {
|
| 43 | 41 |
return Parent::maxNodeId(); |
| 44 | 42 |
} |
| 45 | 43 |
|
| 46 | 44 |
int maxId(Arc) const {
|
| 47 | 45 |
return Parent::maxArcId(); |
| 48 | 46 |
} |
| 49 | 47 |
|
| 50 | 48 |
Node fromId(int id, Node) const {
|
| ... | ... |
@@ -26,48 +26,50 @@ |
| 26 | 26 |
#include <lemon/concept_check.h> |
| 27 | 27 |
#include <lemon/concepts/maps.h> |
| 28 | 28 |
|
| 29 | 29 |
//\file |
| 30 | 30 |
//\brief Extenders for iterable maps. |
| 31 | 31 |
|
| 32 | 32 |
namespace lemon {
|
| 33 | 33 |
|
| 34 | 34 |
// \ingroup graphbits |
| 35 | 35 |
// |
| 36 | 36 |
// \brief Extender for maps |
| 37 | 37 |
template <typename _Map> |
| 38 | 38 |
class MapExtender : public _Map {
|
| 39 | 39 |
public: |
| 40 | 40 |
|
| 41 | 41 |
typedef _Map Parent; |
| 42 | 42 |
typedef MapExtender Map; |
| 43 | 43 |
|
| 44 | 44 |
|
| 45 | 45 |
typedef typename Parent::Graph Graph; |
| 46 | 46 |
typedef typename Parent::Key Item; |
| 47 | 47 |
|
| 48 | 48 |
typedef typename Parent::Key Key; |
| 49 | 49 |
typedef typename Parent::Value Value; |
| 50 |
typedef typename Parent::Reference Reference; |
|
| 51 |
typedef typename Parent::ConstReference ConstReference; |
|
| 50 | 52 |
|
| 51 | 53 |
class MapIt; |
| 52 | 54 |
class ConstMapIt; |
| 53 | 55 |
|
| 54 | 56 |
friend class MapIt; |
| 55 | 57 |
friend class ConstMapIt; |
| 56 | 58 |
|
| 57 | 59 |
public: |
| 58 | 60 |
|
| 59 | 61 |
MapExtender(const Graph& graph) |
| 60 | 62 |
: Parent(graph) {}
|
| 61 | 63 |
|
| 62 | 64 |
MapExtender(const Graph& graph, const Value& value) |
| 63 | 65 |
: Parent(graph, value) {}
|
| 64 | 66 |
|
| 65 | 67 |
private: |
| 66 | 68 |
MapExtender& operator=(const MapExtender& cmap) {
|
| 67 | 69 |
return operator=<MapExtender>(cmap); |
| 68 | 70 |
} |
| 69 | 71 |
|
| 70 | 72 |
template <typename CMap> |
| 71 | 73 |
MapExtender& operator=(const CMap& cmap) {
|
| 72 | 74 |
Parent::operator=(cmap); |
| 73 | 75 |
return *this; |
| ... | ... |
@@ -166,48 +168,50 @@ |
| 166 | 168 |
} |
| 167 | 169 |
|
| 168 | 170 |
protected: |
| 169 | 171 |
const Map& map; |
| 170 | 172 |
|
| 171 | 173 |
}; |
| 172 | 174 |
}; |
| 173 | 175 |
|
| 174 | 176 |
// \ingroup graphbits |
| 175 | 177 |
// |
| 176 | 178 |
// \brief Extender for maps which use a subset of the items. |
| 177 | 179 |
template <typename _Graph, typename _Map> |
| 178 | 180 |
class SubMapExtender : public _Map {
|
| 179 | 181 |
public: |
| 180 | 182 |
|
| 181 | 183 |
typedef _Map Parent; |
| 182 | 184 |
typedef SubMapExtender Map; |
| 183 | 185 |
|
| 184 | 186 |
typedef _Graph Graph; |
| 185 | 187 |
|
| 186 | 188 |
typedef typename Parent::Key Item; |
| 187 | 189 |
|
| 188 | 190 |
typedef typename Parent::Key Key; |
| 189 | 191 |
typedef typename Parent::Value Value; |
| 192 |
typedef typename Parent::Reference Reference; |
|
| 193 |
typedef typename Parent::ConstReference ConstReference; |
|
| 190 | 194 |
|
| 191 | 195 |
class MapIt; |
| 192 | 196 |
class ConstMapIt; |
| 193 | 197 |
|
| 194 | 198 |
friend class MapIt; |
| 195 | 199 |
friend class ConstMapIt; |
| 196 | 200 |
|
| 197 | 201 |
public: |
| 198 | 202 |
|
| 199 | 203 |
SubMapExtender(const Graph& _graph) |
| 200 | 204 |
: Parent(_graph), graph(_graph) {}
|
| 201 | 205 |
|
| 202 | 206 |
SubMapExtender(const Graph& _graph, const Value& _value) |
| 203 | 207 |
: Parent(_graph, _value), graph(_graph) {}
|
| 204 | 208 |
|
| 205 | 209 |
private: |
| 206 | 210 |
SubMapExtender& operator=(const SubMapExtender& cmap) {
|
| 207 | 211 |
return operator=<MapExtender>(cmap); |
| 208 | 212 |
} |
| 209 | 213 |
|
| 210 | 214 |
template <typename CMap> |
| 211 | 215 |
SubMapExtender& operator=(const CMap& cmap) {
|
| 212 | 216 |
checkConcept<concepts::ReadMap<Key, Value>, CMap>(); |
| 213 | 217 |
Item it; |
| ... | ... |
@@ -34,54 +34,57 @@ |
| 34 | 34 |
|
| 35 | 35 |
#include "coin/CbcCutGenerator.hpp" |
| 36 | 36 |
#include "coin/CbcHeuristicLocal.hpp" |
| 37 | 37 |
#include "coin/CbcHeuristicGreedy.hpp" |
| 38 | 38 |
#include "coin/CbcHeuristicFPump.hpp" |
| 39 | 39 |
#include "coin/CbcHeuristicRINS.hpp" |
| 40 | 40 |
|
| 41 | 41 |
#include "coin/CglGomory.hpp" |
| 42 | 42 |
#include "coin/CglProbing.hpp" |
| 43 | 43 |
#include "coin/CglKnapsackCover.hpp" |
| 44 | 44 |
#include "coin/CglOddHole.hpp" |
| 45 | 45 |
#include "coin/CglClique.hpp" |
| 46 | 46 |
#include "coin/CglFlowCover.hpp" |
| 47 | 47 |
#include "coin/CglMixedIntegerRounding.hpp" |
| 48 | 48 |
|
| 49 | 49 |
#include "coin/CbcHeuristic.hpp" |
| 50 | 50 |
|
| 51 | 51 |
namespace lemon {
|
| 52 | 52 |
|
| 53 | 53 |
CbcMip::CbcMip() {
|
| 54 | 54 |
_prob = new CoinModel(); |
| 55 | 55 |
_prob->setProblemName("LEMON");
|
| 56 | 56 |
_osi_solver = 0; |
| 57 | 57 |
_cbc_model = 0; |
| 58 |
messageLevel(MESSAGE_NOTHING); |
|
| 58 | 59 |
} |
| 59 | 60 |
|
| 60 | 61 |
CbcMip::CbcMip(const CbcMip& other) {
|
| 61 | 62 |
_prob = new CoinModel(*other._prob); |
| 63 |
_prob->setProblemName("LEMON");
|
|
| 62 | 64 |
_osi_solver = 0; |
| 63 | 65 |
_cbc_model = 0; |
| 66 |
messageLevel(MESSAGE_NOTHING); |
|
| 64 | 67 |
} |
| 65 | 68 |
|
| 66 | 69 |
CbcMip::~CbcMip() {
|
| 67 | 70 |
delete _prob; |
| 68 | 71 |
if (_osi_solver) delete _osi_solver; |
| 69 | 72 |
if (_cbc_model) delete _cbc_model; |
| 70 | 73 |
} |
| 71 | 74 |
|
| 72 | 75 |
const char* CbcMip::_solverName() const { return "CbcMip"; }
|
| 73 | 76 |
|
| 74 | 77 |
int CbcMip::_addCol() {
|
| 75 | 78 |
_prob->addColumn(0, 0, 0, -COIN_DBL_MAX, COIN_DBL_MAX, 0.0, 0, false); |
| 76 | 79 |
return _prob->numberColumns() - 1; |
| 77 | 80 |
} |
| 78 | 81 |
|
| 79 | 82 |
CbcMip* CbcMip::newSolver() const {
|
| 80 | 83 |
CbcMip* newlp = new CbcMip; |
| 81 | 84 |
return newlp; |
| 82 | 85 |
} |
| 83 | 86 |
|
| 84 | 87 |
CbcMip* CbcMip::cloneSolver() const {
|
| 85 | 88 |
CbcMip* copylp = new CbcMip(*this); |
| 86 | 89 |
return copylp; |
| 87 | 90 |
} |
| ... | ... |
@@ -249,66 +252,50 @@ |
| 249 | 252 |
CbcMip::Value CbcMip::_getObjCoeff(int i) const {
|
| 250 | 253 |
return _prob->getColumnObjective(i); |
| 251 | 254 |
} |
| 252 | 255 |
|
| 253 | 256 |
CbcMip::SolveExitStatus CbcMip::_solve() {
|
| 254 | 257 |
|
| 255 | 258 |
if (_osi_solver) {
|
| 256 | 259 |
delete _osi_solver; |
| 257 | 260 |
} |
| 258 | 261 |
#ifdef COIN_HAS_CLP |
| 259 | 262 |
_osi_solver = new OsiClpSolverInterface(); |
| 260 | 263 |
#elif COIN_HAS_OSL |
| 261 | 264 |
_osi_solver = new OsiOslSolverInterface(); |
| 262 | 265 |
#else |
| 263 | 266 |
#error Cannot instantiate Osi solver |
| 264 | 267 |
#endif |
| 265 | 268 |
|
| 266 | 269 |
_osi_solver->loadFromCoinModel(*_prob); |
| 267 | 270 |
|
| 268 | 271 |
if (_cbc_model) {
|
| 269 | 272 |
delete _cbc_model; |
| 270 | 273 |
} |
| 271 | 274 |
_cbc_model= new CbcModel(*_osi_solver); |
| 272 | 275 |
|
| 273 |
switch (_message_level) {
|
|
| 274 |
case MESSAGE_NO_OUTPUT: |
|
| 275 |
_osi_solver->messageHandler()->setLogLevel(0); |
|
| 276 |
_cbc_model->setLogLevel(0); |
|
| 277 |
break; |
|
| 278 |
case MESSAGE_ERROR_MESSAGE: |
|
| 279 |
_osi_solver->messageHandler()->setLogLevel(1); |
|
| 280 |
_cbc_model->setLogLevel(1); |
|
| 281 |
break; |
|
| 282 |
case MESSAGE_NORMAL_OUTPUT: |
|
| 283 |
_osi_solver->messageHandler()->setLogLevel(2); |
|
| 284 |
_cbc_model->setLogLevel(2); |
|
| 285 |
break; |
|
| 286 |
case MESSAGE_FULL_OUTPUT: |
|
| 287 |
_osi_solver->messageHandler()->setLogLevel(3); |
|
| 288 |
_cbc_model->setLogLevel(3); |
|
| 289 |
break; |
|
| 290 |
} |
|
| 276 |
_osi_solver->messageHandler()->setLogLevel(_message_level); |
|
| 277 |
_cbc_model->setLogLevel(_message_level); |
|
| 291 | 278 |
|
| 292 | 279 |
_cbc_model->initialSolve(); |
| 293 | 280 |
_cbc_model->solver()->setHintParam(OsiDoReducePrint, true, OsiHintTry); |
| 294 | 281 |
|
| 295 | 282 |
if (!_cbc_model->isInitialSolveAbandoned() && |
| 296 | 283 |
_cbc_model->isInitialSolveProvenOptimal() && |
| 297 | 284 |
!_cbc_model->isInitialSolveProvenPrimalInfeasible() && |
| 298 | 285 |
!_cbc_model->isInitialSolveProvenDualInfeasible()) {
|
| 299 | 286 |
|
| 300 | 287 |
CglProbing generator1; |
| 301 | 288 |
generator1.setUsingObjective(true); |
| 302 | 289 |
generator1.setMaxPass(3); |
| 303 | 290 |
generator1.setMaxProbe(100); |
| 304 | 291 |
generator1.setMaxLook(50); |
| 305 | 292 |
generator1.setRowCuts(3); |
| 306 | 293 |
_cbc_model->addCutGenerator(&generator1, -1, "Probing"); |
| 307 | 294 |
|
| 308 | 295 |
CglGomory generator2; |
| 309 | 296 |
generator2.setLimit(300); |
| 310 | 297 |
_cbc_model->addCutGenerator(&generator2, -1, "Gomory"); |
| 311 | 298 |
|
| 312 | 299 |
CglKnapsackCover generator3; |
| 313 | 300 |
_cbc_model->addCutGenerator(&generator3, -1, "Knapsack"); |
| 314 | 301 |
|
| ... | ... |
@@ -432,29 +419,45 @@ |
| 432 | 419 |
LEMON_ASSERT(false, "Wrong sense"); |
| 433 | 420 |
} |
| 434 | 421 |
} |
| 435 | 422 |
|
| 436 | 423 |
CbcMip::ColTypes CbcMip::_getColType(int i) const {
|
| 437 | 424 |
return _prob->getColumnIsInteger(i) ? INTEGER : REAL; |
| 438 | 425 |
} |
| 439 | 426 |
|
| 440 | 427 |
void CbcMip::_clear() {
|
| 441 | 428 |
delete _prob; |
| 442 | 429 |
if (_osi_solver) {
|
| 443 | 430 |
delete _osi_solver; |
| 444 | 431 |
_osi_solver = 0; |
| 445 | 432 |
} |
| 446 | 433 |
if (_cbc_model) {
|
| 447 | 434 |
delete _cbc_model; |
| 448 | 435 |
_cbc_model = 0; |
| 449 | 436 |
} |
| 450 | 437 |
|
| 451 | 438 |
_prob = new CoinModel(); |
| 452 | 439 |
rows.clear(); |
| 453 | 440 |
cols.clear(); |
| 454 | 441 |
} |
| 455 | 442 |
|
| 456 |
void CbcMip::messageLevel(MessageLevel m) {
|
|
| 457 |
_message_level = m; |
|
| 443 |
void CbcMip::_messageLevel(MessageLevel level) {
|
|
| 444 |
switch (level) {
|
|
| 445 |
case MESSAGE_NOTHING: |
|
| 446 |
_message_level = 0; |
|
| 447 |
break; |
|
| 448 |
case MESSAGE_ERROR: |
|
| 449 |
_message_level = 1; |
|
| 450 |
break; |
|
| 451 |
case MESSAGE_WARNING: |
|
| 452 |
_message_level = 1; |
|
| 453 |
break; |
|
| 454 |
case MESSAGE_NORMAL: |
|
| 455 |
_message_level = 2; |
|
| 456 |
break; |
|
| 457 |
case MESSAGE_VERBOSE: |
|
| 458 |
_message_level = 3; |
|
| 459 |
break; |
|
| 460 |
} |
|
| 458 | 461 |
} |
| 459 | 462 |
|
| 460 | 463 |
} //END OF NAMESPACE LEMON |
| ... | ... |
@@ -94,57 +94,36 @@ |
| 94 | 94 |
virtual void _setRowLowerBound(int i, Value value); |
| 95 | 95 |
virtual Value _getRowLowerBound(int i) const; |
| 96 | 96 |
virtual void _setRowUpperBound(int i, Value value); |
| 97 | 97 |
virtual Value _getRowUpperBound(int i) const; |
| 98 | 98 |
|
| 99 | 99 |
virtual void _setObjCoeffs(ExprIterator b, ExprIterator e); |
| 100 | 100 |
virtual void _getObjCoeffs(InsertIterator b) const; |
| 101 | 101 |
|
| 102 | 102 |
virtual void _setObjCoeff(int i, Value obj_coef); |
| 103 | 103 |
virtual Value _getObjCoeff(int i) const; |
| 104 | 104 |
|
| 105 | 105 |
virtual void _setSense(Sense sense); |
| 106 | 106 |
virtual Sense _getSense() const; |
| 107 | 107 |
|
| 108 | 108 |
virtual ColTypes _getColType(int col) const; |
| 109 | 109 |
virtual void _setColType(int col, ColTypes col_type); |
| 110 | 110 |
|
| 111 | 111 |
virtual SolveExitStatus _solve(); |
| 112 | 112 |
virtual ProblemType _getType() const; |
| 113 | 113 |
virtual Value _getSol(int i) const; |
| 114 | 114 |
virtual Value _getSolValue() const; |
| 115 | 115 |
|
| 116 | 116 |
virtual void _clear(); |
| 117 | 117 |
|
| 118 |
|
|
| 118 |
virtual void _messageLevel(MessageLevel level); |
|
| 119 |
void _applyMessageLevel(); |
|
| 119 | 120 |
|
| 120 |
///Enum for \c messageLevel() parameter |
|
| 121 |
enum MessageLevel {
|
|
| 122 |
/// no output (default value) |
|
| 123 |
MESSAGE_NO_OUTPUT = 0, |
|
| 124 |
/// error messages only |
|
| 125 |
MESSAGE_ERROR_MESSAGE = 1, |
|
| 126 |
/// normal output |
|
| 127 |
MESSAGE_NORMAL_OUTPUT = 2, |
|
| 128 |
/// full output (includes informational messages) |
|
| 129 |
MESSAGE_FULL_OUTPUT = 3 |
|
| 130 |
|
|
| 121 |
int _message_level; |
|
| 131 | 122 |
|
| 132 |
private: |
|
| 133 |
|
|
| 134 |
MessageLevel _message_level; |
|
| 135 |
|
|
| 136 |
public: |
|
| 137 |
|
|
| 138 |
///Set the verbosity of the messages |
|
| 139 |
|
|
| 140 |
///Set the verbosity of the messages |
|
| 141 |
/// |
|
| 142 |
///\param m is the level of the messages output by the solver routines. |
|
| 143 |
void messageLevel(MessageLevel m); |
|
| 144 |
|
|
| 123 |
|
|
| 145 | 124 |
|
| 146 | 125 |
}; |
| 147 | 126 |
|
| 148 | 127 |
} |
| 149 | 128 |
|
| 150 | 129 |
#endif |
| ... | ... |
@@ -432,175 +432,175 @@ |
| 432 | 432 |
/// \brief Returns a const reference to the tolerance. |
| 433 | 433 |
/// |
| 434 | 434 |
/// Returns a const reference to the tolerance. |
| 435 | 435 |
const Tolerance& tolerance() const {
|
| 436 | 436 |
return tolerance; |
| 437 | 437 |
} |
| 438 | 438 |
|
| 439 | 439 |
/// \name Execution Control |
| 440 | 440 |
/// The simplest way to execute the algorithm is to call \ref run().\n |
| 441 | 441 |
/// If you need more control on the initial solution or the execution, |
| 442 | 442 |
/// first you have to call one of the \ref init() functions, then |
| 443 | 443 |
/// the \ref start() function. |
| 444 | 444 |
|
| 445 | 445 |
///@{
|
| 446 | 446 |
|
| 447 | 447 |
/// Initializes the internal data structures. |
| 448 | 448 |
|
| 449 | 449 |
/// Initializes the internal data structures and sets all flow values |
| 450 | 450 |
/// to the lower bound. |
| 451 | 451 |
void init() |
| 452 | 452 |
{
|
| 453 | 453 |
createStructures(); |
| 454 | 454 |
|
| 455 | 455 |
for(NodeIt n(_g);n!=INVALID;++n) {
|
| 456 |
_excess |
|
| 456 |
(*_excess)[n] = (*_delta)[n]; |
|
| 457 | 457 |
} |
| 458 | 458 |
|
| 459 | 459 |
for (ArcIt e(_g);e!=INVALID;++e) {
|
| 460 | 460 |
_flow->set(e, (*_lo)[e]); |
| 461 |
_excess->set(_g.target(e), (*_excess)[_g.target(e)] + (*_flow)[e]); |
|
| 462 |
_excess->set(_g.source(e), (*_excess)[_g.source(e)] - (*_flow)[e]); |
|
| 461 |
(*_excess)[_g.target(e)] += (*_flow)[e]; |
|
| 462 |
(*_excess)[_g.source(e)] -= (*_flow)[e]; |
|
| 463 | 463 |
} |
| 464 | 464 |
|
| 465 | 465 |
// global relabeling tested, but in general case it provides |
| 466 | 466 |
// worse performance for random digraphs |
| 467 | 467 |
_level->initStart(); |
| 468 | 468 |
for(NodeIt n(_g);n!=INVALID;++n) |
| 469 | 469 |
_level->initAddItem(n); |
| 470 | 470 |
_level->initFinish(); |
| 471 | 471 |
for(NodeIt n(_g);n!=INVALID;++n) |
| 472 | 472 |
if(_tol.positive((*_excess)[n])) |
| 473 | 473 |
_level->activate(n); |
| 474 | 474 |
} |
| 475 | 475 |
|
| 476 | 476 |
/// Initializes the internal data structures using a greedy approach. |
| 477 | 477 |
|
| 478 | 478 |
/// Initializes the internal data structures using a greedy approach |
| 479 | 479 |
/// to construct the initial solution. |
| 480 | 480 |
void greedyInit() |
| 481 | 481 |
{
|
| 482 | 482 |
createStructures(); |
| 483 | 483 |
|
| 484 | 484 |
for(NodeIt n(_g);n!=INVALID;++n) {
|
| 485 |
_excess |
|
| 485 |
(*_excess)[n] = (*_delta)[n]; |
|
| 486 | 486 |
} |
| 487 | 487 |
|
| 488 | 488 |
for (ArcIt e(_g);e!=INVALID;++e) {
|
| 489 | 489 |
if (!_tol.positive((*_excess)[_g.target(e)] + (*_up)[e])) {
|
| 490 | 490 |
_flow->set(e, (*_up)[e]); |
| 491 |
_excess->set(_g.target(e), (*_excess)[_g.target(e)] + (*_up)[e]); |
|
| 492 |
_excess->set(_g.source(e), (*_excess)[_g.source(e)] - (*_up)[e]); |
|
| 491 |
(*_excess)[_g.target(e)] += (*_up)[e]; |
|
| 492 |
(*_excess)[_g.source(e)] -= (*_up)[e]; |
|
| 493 | 493 |
} else if (_tol.positive((*_excess)[_g.target(e)] + (*_lo)[e])) {
|
| 494 | 494 |
_flow->set(e, (*_lo)[e]); |
| 495 |
_excess->set(_g.target(e), (*_excess)[_g.target(e)] + (*_lo)[e]); |
|
| 496 |
_excess->set(_g.source(e), (*_excess)[_g.source(e)] - (*_lo)[e]); |
|
| 495 |
(*_excess)[_g.target(e)] += (*_lo)[e]; |
|
| 496 |
(*_excess)[_g.source(e)] -= (*_lo)[e]; |
|
| 497 | 497 |
} else {
|
| 498 | 498 |
Value fc = -(*_excess)[_g.target(e)]; |
| 499 | 499 |
_flow->set(e, fc); |
| 500 |
_excess->set(_g.target(e), 0); |
|
| 501 |
_excess->set(_g.source(e), (*_excess)[_g.source(e)] - fc); |
|
| 500 |
(*_excess)[_g.target(e)] = 0; |
|
| 501 |
(*_excess)[_g.source(e)] -= fc; |
|
| 502 | 502 |
} |
| 503 | 503 |
} |
| 504 | 504 |
|
| 505 | 505 |
_level->initStart(); |
| 506 | 506 |
for(NodeIt n(_g);n!=INVALID;++n) |
| 507 | 507 |
_level->initAddItem(n); |
| 508 | 508 |
_level->initFinish(); |
| 509 | 509 |
for(NodeIt n(_g);n!=INVALID;++n) |
| 510 | 510 |
if(_tol.positive((*_excess)[n])) |
| 511 | 511 |
_level->activate(n); |
| 512 | 512 |
} |
| 513 | 513 |
|
| 514 | 514 |
///Executes the algorithm |
| 515 | 515 |
|
| 516 | 516 |
///This function executes the algorithm. |
| 517 | 517 |
/// |
| 518 | 518 |
///\return \c true if a feasible circulation is found. |
| 519 | 519 |
/// |
| 520 | 520 |
///\sa barrier() |
| 521 | 521 |
///\sa barrierMap() |
| 522 | 522 |
bool start() |
| 523 | 523 |
{
|
| 524 | 524 |
|
| 525 | 525 |
Node act; |
| 526 | 526 |
Node bact=INVALID; |
| 527 | 527 |
Node last_activated=INVALID; |
| 528 | 528 |
while((act=_level->highestActive())!=INVALID) {
|
| 529 | 529 |
int actlevel=(*_level)[act]; |
| 530 | 530 |
int mlevel=_node_num; |
| 531 | 531 |
Value exc=(*_excess)[act]; |
| 532 | 532 |
|
| 533 | 533 |
for(OutArcIt e(_g,act);e!=INVALID; ++e) {
|
| 534 | 534 |
Node v = _g.target(e); |
| 535 | 535 |
Value fc=(*_up)[e]-(*_flow)[e]; |
| 536 | 536 |
if(!_tol.positive(fc)) continue; |
| 537 | 537 |
if((*_level)[v]<actlevel) {
|
| 538 | 538 |
if(!_tol.less(fc, exc)) {
|
| 539 | 539 |
_flow->set(e, (*_flow)[e] + exc); |
| 540 |
|
|
| 540 |
(*_excess)[v] += exc; |
|
| 541 | 541 |
if(!_level->active(v) && _tol.positive((*_excess)[v])) |
| 542 | 542 |
_level->activate(v); |
| 543 |
|
|
| 543 |
(*_excess)[act] = 0; |
|
| 544 | 544 |
_level->deactivate(act); |
| 545 | 545 |
goto next_l; |
| 546 | 546 |
} |
| 547 | 547 |
else {
|
| 548 | 548 |
_flow->set(e, (*_up)[e]); |
| 549 |
|
|
| 549 |
(*_excess)[v] += fc; |
|
| 550 | 550 |
if(!_level->active(v) && _tol.positive((*_excess)[v])) |
| 551 | 551 |
_level->activate(v); |
| 552 | 552 |
exc-=fc; |
| 553 | 553 |
} |
| 554 | 554 |
} |
| 555 | 555 |
else if((*_level)[v]<mlevel) mlevel=(*_level)[v]; |
| 556 | 556 |
} |
| 557 | 557 |
for(InArcIt e(_g,act);e!=INVALID; ++e) {
|
| 558 | 558 |
Node v = _g.source(e); |
| 559 | 559 |
Value fc=(*_flow)[e]-(*_lo)[e]; |
| 560 | 560 |
if(!_tol.positive(fc)) continue; |
| 561 | 561 |
if((*_level)[v]<actlevel) {
|
| 562 | 562 |
if(!_tol.less(fc, exc)) {
|
| 563 | 563 |
_flow->set(e, (*_flow)[e] - exc); |
| 564 |
|
|
| 564 |
(*_excess)[v] += exc; |
|
| 565 | 565 |
if(!_level->active(v) && _tol.positive((*_excess)[v])) |
| 566 | 566 |
_level->activate(v); |
| 567 |
|
|
| 567 |
(*_excess)[act] = 0; |
|
| 568 | 568 |
_level->deactivate(act); |
| 569 | 569 |
goto next_l; |
| 570 | 570 |
} |
| 571 | 571 |
else {
|
| 572 | 572 |
_flow->set(e, (*_lo)[e]); |
| 573 |
|
|
| 573 |
(*_excess)[v] += fc; |
|
| 574 | 574 |
if(!_level->active(v) && _tol.positive((*_excess)[v])) |
| 575 | 575 |
_level->activate(v); |
| 576 | 576 |
exc-=fc; |
| 577 | 577 |
} |
| 578 | 578 |
} |
| 579 | 579 |
else if((*_level)[v]<mlevel) mlevel=(*_level)[v]; |
| 580 | 580 |
} |
| 581 | 581 |
|
| 582 |
_excess |
|
| 582 |
(*_excess)[act] = exc; |
|
| 583 | 583 |
if(!_tol.positive(exc)) _level->deactivate(act); |
| 584 | 584 |
else if(mlevel==_node_num) {
|
| 585 | 585 |
_level->liftHighestActiveToTop(); |
| 586 | 586 |
_el = _node_num; |
| 587 | 587 |
return false; |
| 588 | 588 |
} |
| 589 | 589 |
else {
|
| 590 | 590 |
_level->liftHighestActive(mlevel+1); |
| 591 | 591 |
if(_level->onLevel(actlevel)==0) {
|
| 592 | 592 |
_el = actlevel; |
| 593 | 593 |
return false; |
| 594 | 594 |
} |
| 595 | 595 |
} |
| 596 | 596 |
next_l: |
| 597 | 597 |
; |
| 598 | 598 |
} |
| 599 | 599 |
return true; |
| 600 | 600 |
} |
| 601 | 601 |
|
| 602 | 602 |
/// Runs the algorithm. |
| 603 | 603 |
|
| 604 | 604 |
/// This function runs the algorithm. |
| 605 | 605 |
/// |
| 606 | 606 |
/// \return \c true if a feasible circulation is found. |
| ... | ... |
@@ -3,57 +3,57 @@ |
| 3 | 3 |
* This file is a part of LEMON, a generic C++ optimization library. |
| 4 | 4 |
* |
| 5 | 5 |
* Copyright (C) 2003-2008 |
| 6 | 6 |
* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
| 7 | 7 |
* (Egervary Research Group on Combinatorial Optimization, EGRES). |
| 8 | 8 |
* |
| 9 | 9 |
* Permission to use, modify and distribute this software is granted |
| 10 | 10 |
* provided that this copyright notice appears in all copies. For |
| 11 | 11 |
* precise terms see the accompanying LICENSE file. |
| 12 | 12 |
* |
| 13 | 13 |
* This software is provided "AS IS" with no warranty of any kind, |
| 14 | 14 |
* express or implied, and with no claim as to its suitability for any |
| 15 | 15 |
* purpose. |
| 16 | 16 |
* |
| 17 | 17 |
*/ |
| 18 | 18 |
|
| 19 | 19 |
#include <lemon/clp.h> |
| 20 | 20 |
#include <coin/ClpSimplex.hpp> |
| 21 | 21 |
|
| 22 | 22 |
namespace lemon {
|
| 23 | 23 |
|
| 24 | 24 |
ClpLp::ClpLp() {
|
| 25 | 25 |
_prob = new ClpSimplex(); |
| 26 | 26 |
_init_temporals(); |
| 27 |
messageLevel( |
|
| 27 |
messageLevel(MESSAGE_NOTHING); |
|
| 28 | 28 |
} |
| 29 | 29 |
|
| 30 | 30 |
ClpLp::ClpLp(const ClpLp& other) {
|
| 31 | 31 |
_prob = new ClpSimplex(*other._prob); |
| 32 | 32 |
rows = other.rows; |
| 33 | 33 |
cols = other.cols; |
| 34 | 34 |
_init_temporals(); |
| 35 |
messageLevel( |
|
| 35 |
messageLevel(MESSAGE_NOTHING); |
|
| 36 | 36 |
} |
| 37 | 37 |
|
| 38 | 38 |
ClpLp::~ClpLp() {
|
| 39 | 39 |
delete _prob; |
| 40 | 40 |
_clear_temporals(); |
| 41 | 41 |
} |
| 42 | 42 |
|
| 43 | 43 |
void ClpLp::_init_temporals() {
|
| 44 | 44 |
_primal_ray = 0; |
| 45 | 45 |
_dual_ray = 0; |
| 46 | 46 |
} |
| 47 | 47 |
|
| 48 | 48 |
void ClpLp::_clear_temporals() {
|
| 49 | 49 |
if (_primal_ray) {
|
| 50 | 50 |
delete[] _primal_ray; |
| 51 | 51 |
_primal_ray = 0; |
| 52 | 52 |
} |
| 53 | 53 |
if (_dual_ray) {
|
| 54 | 54 |
delete[] _dual_ray; |
| 55 | 55 |
_dual_ray = 0; |
| 56 | 56 |
} |
| 57 | 57 |
} |
| 58 | 58 |
|
| 59 | 59 |
ClpLp* ClpLp::newSolver() const {
|
| ... | ... |
@@ -409,29 +409,45 @@ |
| 409 | 409 |
case MAX: |
| 410 | 410 |
_prob->setOptimizationDirection(-1); |
| 411 | 411 |
break; |
| 412 | 412 |
} |
| 413 | 413 |
} |
| 414 | 414 |
|
| 415 | 415 |
ClpLp::Sense ClpLp::_getSense() const {
|
| 416 | 416 |
double dir = _prob->optimizationDirection(); |
| 417 | 417 |
if (dir > 0.0) {
|
| 418 | 418 |
return MIN; |
| 419 | 419 |
} else {
|
| 420 | 420 |
return MAX; |
| 421 | 421 |
} |
| 422 | 422 |
} |
| 423 | 423 |
|
| 424 | 424 |
void ClpLp::_clear() {
|
| 425 | 425 |
delete _prob; |
| 426 | 426 |
_prob = new ClpSimplex(); |
| 427 | 427 |
rows.clear(); |
| 428 | 428 |
cols.clear(); |
| 429 | 429 |
_col_names_ref.clear(); |
| 430 | 430 |
_clear_temporals(); |
| 431 | 431 |
} |
| 432 | 432 |
|
| 433 |
void ClpLp::messageLevel(MessageLevel m) {
|
|
| 434 |
_prob->setLogLevel(static_cast<int>(m)); |
|
| 433 |
void ClpLp::_messageLevel(MessageLevel level) {
|
|
| 434 |
switch (level) {
|
|
| 435 |
case MESSAGE_NOTHING: |
|
| 436 |
_prob->setLogLevel(0); |
|
| 437 |
break; |
|
| 438 |
case MESSAGE_ERROR: |
|
| 439 |
_prob->setLogLevel(1); |
|
| 440 |
break; |
|
| 441 |
case MESSAGE_WARNING: |
|
| 442 |
_prob->setLogLevel(2); |
|
| 443 |
break; |
|
| 444 |
case MESSAGE_NORMAL: |
|
| 445 |
_prob->setLogLevel(3); |
|
| 446 |
break; |
|
| 447 |
case MESSAGE_VERBOSE: |
|
| 448 |
_prob->setLogLevel(4); |
|
| 449 |
break; |
|
| 450 |
} |
|
| 435 | 451 |
} |
| 436 | 452 |
|
| 437 | 453 |
} //END OF NAMESPACE LEMON |
| ... | ... |
@@ -115,67 +115,49 @@ |
| 115 | 115 |
virtual void _setObjCoeff(int i, Value obj_coef); |
| 116 | 116 |
virtual Value _getObjCoeff(int i) const; |
| 117 | 117 |
|
| 118 | 118 |
virtual void _setSense(Sense sense); |
| 119 | 119 |
virtual Sense _getSense() const; |
| 120 | 120 |
|
| 121 | 121 |
virtual SolveExitStatus _solve(); |
| 122 | 122 |
|
| 123 | 123 |
virtual Value _getPrimal(int i) const; |
| 124 | 124 |
virtual Value _getDual(int i) const; |
| 125 | 125 |
|
| 126 | 126 |
virtual Value _getPrimalValue() const; |
| 127 | 127 |
|
| 128 | 128 |
virtual Value _getPrimalRay(int i) const; |
| 129 | 129 |
virtual Value _getDualRay(int i) const; |
| 130 | 130 |
|
| 131 | 131 |
virtual VarStatus _getColStatus(int i) const; |
| 132 | 132 |
virtual VarStatus _getRowStatus(int i) const; |
| 133 | 133 |
|
| 134 | 134 |
virtual ProblemType _getPrimalType() const; |
| 135 | 135 |
virtual ProblemType _getDualType() const; |
| 136 | 136 |
|
| 137 | 137 |
virtual void _clear(); |
| 138 | 138 |
|
| 139 |
virtual void _messageLevel(MessageLevel); |
|
| 140 |
|
|
| 139 | 141 |
public: |
| 140 | 142 |
|
| 141 | 143 |
///Solves LP with primal simplex method. |
| 142 | 144 |
SolveExitStatus solvePrimal(); |
| 143 | 145 |
|
| 144 | 146 |
///Solves LP with dual simplex method. |
| 145 | 147 |
SolveExitStatus solveDual(); |
| 146 | 148 |
|
| 147 | 149 |
///Solves LP with barrier method. |
| 148 | 150 |
SolveExitStatus solveBarrier(); |
| 149 | 151 |
|
| 150 | 152 |
///Returns the constraint identifier understood by CLP. |
| 151 | 153 |
int clpRow(Row r) const { return rows(id(r)); }
|
| 152 | 154 |
|
| 153 | 155 |
///Returns the variable identifier understood by CLP. |
| 154 | 156 |
int clpCol(Col c) const { return cols(id(c)); }
|
| 155 | 157 |
|
| 156 |
///Enum for \c messageLevel() parameter |
|
| 157 |
enum MessageLevel {
|
|
| 158 |
/// no output (default value) |
|
| 159 |
MESSAGE_NO_OUTPUT = 0, |
|
| 160 |
/// print final solution |
|
| 161 |
MESSAGE_FINAL_SOLUTION = 1, |
|
| 162 |
/// print factorization |
|
| 163 |
MESSAGE_FACTORIZATION = 2, |
|
| 164 |
/// normal output |
|
| 165 |
MESSAGE_NORMAL_OUTPUT = 3, |
|
| 166 |
/// verbose output |
|
| 167 |
MESSAGE_VERBOSE_OUTPUT = 4 |
|
| 168 |
}; |
|
| 169 |
///Set the verbosity of the messages |
|
| 170 |
|
|
| 171 |
///Set the verbosity of the messages |
|
| 172 |
/// |
|
| 173 |
///\param m is the level of the messages output by the solver routines. |
|
| 174 |
void messageLevel(MessageLevel m); |
|
| 175 |
|
|
| 176 | 158 |
}; |
| 177 | 159 |
|
| 178 | 160 |
} //END OF NAMESPACE LEMON |
| 179 | 161 |
|
| 180 | 162 |
#endif //LEMON_CLP_H |
| 181 | 163 |
| ... | ... |
@@ -400,88 +400,89 @@ |
| 400 | 400 |
|
| 401 | 401 |
/// \brief The running node of the iterator. |
| 402 | 402 |
/// |
| 403 | 403 |
/// Gives back the running node of the iterator. |
| 404 | 404 |
/// It is always the source of the pointed arc. |
| 405 | 405 |
Node runningNode(const InArcIt&) const { return INVALID; }
|
| 406 | 406 |
|
| 407 | 407 |
/// \brief The base node of the iterator. |
| 408 | 408 |
/// |
| 409 | 409 |
/// Gives back the base node of the iterator. |
| 410 | 410 |
/// It is always the source of the pointed arc. |
| 411 | 411 |
Node baseNode(const OutArcIt&) const { return INVALID; }
|
| 412 | 412 |
|
| 413 | 413 |
/// \brief The running node of the iterator. |
| 414 | 414 |
/// |
| 415 | 415 |
/// Gives back the running node of the iterator. |
| 416 | 416 |
/// It is always the target of the pointed arc. |
| 417 | 417 |
Node runningNode(const OutArcIt&) const { return INVALID; }
|
| 418 | 418 |
|
| 419 | 419 |
/// \brief The opposite node on the given arc. |
| 420 | 420 |
/// |
| 421 | 421 |
/// Gives back the opposite node on the given arc. |
| 422 | 422 |
Node oppositeNode(const Node&, const Arc&) const { return INVALID; }
|
| 423 | 423 |
|
| 424 |
/// \brief |
|
| 424 |
/// \brief Reference map of the nodes to type \c T. |
|
| 425 | 425 |
/// |
| 426 |
/// ReadWrite map of the nodes to type \c T. |
|
| 427 |
/// \sa Reference |
|
| 426 |
/// Reference map of the nodes to type \c T. |
|
| 428 | 427 |
template<class T> |
| 429 |
class NodeMap : public |
|
| 428 |
class NodeMap : public ReferenceMap<Node, T, T&, const T&> {
|
|
| 430 | 429 |
public: |
| 431 | 430 |
|
| 432 | 431 |
///\e |
| 433 | 432 |
NodeMap(const Digraph&) { }
|
| 434 | 433 |
///\e |
| 435 | 434 |
NodeMap(const Digraph&, T) { }
|
| 436 | 435 |
|
| 437 | 436 |
private: |
| 438 | 437 |
///Copy constructor |
| 439 |
NodeMap(const NodeMap& nm) : |
|
| 438 |
NodeMap(const NodeMap& nm) : |
|
| 439 |
ReferenceMap<Node, T, T&, const T&>(nm) { }
|
|
| 440 | 440 |
///Assignment operator |
| 441 | 441 |
template <typename CMap> |
| 442 | 442 |
NodeMap& operator=(const CMap&) {
|
| 443 | 443 |
checkConcept<ReadMap<Node, T>, CMap>(); |
| 444 | 444 |
return *this; |
| 445 | 445 |
} |
| 446 | 446 |
}; |
| 447 | 447 |
|
| 448 |
/// \brief |
|
| 448 |
/// \brief Reference map of the arcs to type \c T. |
|
| 449 | 449 |
/// |
| 450 | 450 |
/// Reference map of the arcs to type \c T. |
| 451 |
/// \sa Reference |
|
| 452 | 451 |
template<class T> |
| 453 |
class ArcMap : public |
|
| 452 |
class ArcMap : public ReferenceMap<Arc, T, T&, const T&> {
|
|
| 454 | 453 |
public: |
| 455 | 454 |
|
| 456 | 455 |
///\e |
| 457 | 456 |
ArcMap(const Digraph&) { }
|
| 458 | 457 |
///\e |
| 459 | 458 |
ArcMap(const Digraph&, T) { }
|
| 460 | 459 |
private: |
| 461 | 460 |
///Copy constructor |
| 462 |
ArcMap(const ArcMap& em) : |
|
| 461 |
ArcMap(const ArcMap& em) : |
|
| 462 |
ReferenceMap<Arc, T, T&, const T&>(em) { }
|
|
| 463 | 463 |
///Assignment operator |
| 464 | 464 |
template <typename CMap> |
| 465 | 465 |
ArcMap& operator=(const CMap&) {
|
| 466 | 466 |
checkConcept<ReadMap<Arc, T>, CMap>(); |
| 467 | 467 |
return *this; |
| 468 | 468 |
} |
| 469 | 469 |
}; |
| 470 | 470 |
|
| 471 | 471 |
template <typename _Digraph> |
| 472 | 472 |
struct Constraints {
|
| 473 | 473 |
void constraints() {
|
| 474 |
checkConcept<BaseDigraphComponent, _Digraph>(); |
|
| 474 | 475 |
checkConcept<IterableDigraphComponent<>, _Digraph>(); |
| 475 | 476 |
checkConcept<IDableDigraphComponent<>, _Digraph>(); |
| 476 | 477 |
checkConcept<MappableDigraphComponent<>, _Digraph>(); |
| 477 | 478 |
} |
| 478 | 479 |
}; |
| 479 | 480 |
|
| 480 | 481 |
}; |
| 481 | 482 |
|
| 482 | 483 |
} //namespace concepts |
| 483 | 484 |
} //namespace lemon |
| 484 | 485 |
|
| 485 | 486 |
|
| 486 | 487 |
|
| 487 | 488 |
#endif |
| ... | ... |
@@ -476,113 +476,113 @@ |
| 476 | 476 |
InArcIt(Invalid) { }
|
| 477 | 477 |
/// This constructor sets the iterator to first incoming arc. |
| 478 | 478 |
|
| 479 | 479 |
/// This constructor set the iterator to the first incoming arc of |
| 480 | 480 |
/// the node. |
| 481 | 481 |
///@param n the node |
| 482 | 482 |
///@param g the graph |
| 483 | 483 |
InArcIt(const Graph& g, const Node& n) {
|
| 484 | 484 |
ignore_unused_variable_warning(n); |
| 485 | 485 |
ignore_unused_variable_warning(g); |
| 486 | 486 |
} |
| 487 | 487 |
/// Arc -> InArcIt conversion |
| 488 | 488 |
|
| 489 | 489 |
/// Sets the iterator to the value of the trivial iterator \c e. |
| 490 | 490 |
/// This feature necessitates that each time we |
| 491 | 491 |
/// iterate the arc-set, the iteration order is the same. |
| 492 | 492 |
InArcIt(const Graph&, const Arc&) { }
|
| 493 | 493 |
/// Next incoming arc |
| 494 | 494 |
|
| 495 | 495 |
/// Assign the iterator to the next inarc of the corresponding node. |
| 496 | 496 |
/// |
| 497 | 497 |
InArcIt& operator++() { return *this; }
|
| 498 | 498 |
}; |
| 499 | 499 |
|
| 500 |
/// \brief |
|
| 500 |
/// \brief Reference map of the nodes to type \c T. |
|
| 501 | 501 |
/// |
| 502 |
/// ReadWrite map of the nodes to type \c T. |
|
| 503 |
/// \sa Reference |
|
| 502 |
/// Reference map of the nodes to type \c T. |
|
| 504 | 503 |
template<class T> |
| 505 |
class NodeMap : public |
|
| 504 |
class NodeMap : public ReferenceMap<Node, T, T&, const T&> |
|
| 506 | 505 |
{
|
| 507 | 506 |
public: |
| 508 | 507 |
|
| 509 | 508 |
///\e |
| 510 | 509 |
NodeMap(const Graph&) { }
|
| 511 | 510 |
///\e |
| 512 | 511 |
NodeMap(const Graph&, T) { }
|
| 513 | 512 |
|
| 514 | 513 |
private: |
| 515 | 514 |
///Copy constructor |
| 516 |
NodeMap(const NodeMap& nm) : |
|
| 515 |
NodeMap(const NodeMap& nm) : |
|
| 516 |
ReferenceMap<Node, T, T&, const T&>(nm) { }
|
|
| 517 | 517 |
///Assignment operator |
| 518 | 518 |
template <typename CMap> |
| 519 | 519 |
NodeMap& operator=(const CMap&) {
|
| 520 | 520 |
checkConcept<ReadMap<Node, T>, CMap>(); |
| 521 | 521 |
return *this; |
| 522 | 522 |
} |
| 523 | 523 |
}; |
| 524 | 524 |
|
| 525 |
/// \brief |
|
| 525 |
/// \brief Reference map of the arcs to type \c T. |
|
| 526 | 526 |
/// |
| 527 |
/// Reference map of the directed arcs to type \c T. |
|
| 528 |
/// \sa Reference |
|
| 527 |
/// Reference map of the arcs to type \c T. |
|
| 529 | 528 |
template<class T> |
| 530 |
class ArcMap : public |
|
| 529 |
class ArcMap : public ReferenceMap<Arc, T, T&, const T&> |
|
| 531 | 530 |
{
|
| 532 | 531 |
public: |
| 533 | 532 |
|
| 534 | 533 |
///\e |
| 535 | 534 |
ArcMap(const Graph&) { }
|
| 536 | 535 |
///\e |
| 537 | 536 |
ArcMap(const Graph&, T) { }
|
| 538 | 537 |
private: |
| 539 | 538 |
///Copy constructor |
| 540 |
ArcMap(const ArcMap& em) : |
|
| 539 |
ArcMap(const ArcMap& em) : |
|
| 540 |
ReferenceMap<Arc, T, T&, const T&>(em) { }
|
|
| 541 | 541 |
///Assignment operator |
| 542 | 542 |
template <typename CMap> |
| 543 | 543 |
ArcMap& operator=(const CMap&) {
|
| 544 | 544 |
checkConcept<ReadMap<Arc, T>, CMap>(); |
| 545 | 545 |
return *this; |
| 546 | 546 |
} |
| 547 | 547 |
}; |
| 548 | 548 |
|
| 549 |
/// |
|
| 549 |
/// Reference map of the edges to type \c T. |
|
| 550 | 550 |
|
| 551 |
/// Reference map of the arcs to type \c T. |
|
| 552 |
/// \sa Reference |
|
| 551 |
/// Reference map of the edges to type \c T. |
|
| 553 | 552 |
template<class T> |
| 554 |
class EdgeMap : public |
|
| 553 |
class EdgeMap : public ReferenceMap<Edge, T, T&, const T&> |
|
| 555 | 554 |
{
|
| 556 | 555 |
public: |
| 557 | 556 |
|
| 558 | 557 |
///\e |
| 559 | 558 |
EdgeMap(const Graph&) { }
|
| 560 | 559 |
///\e |
| 561 | 560 |
EdgeMap(const Graph&, T) { }
|
| 562 | 561 |
private: |
| 563 | 562 |
///Copy constructor |
| 564 |
EdgeMap(const EdgeMap& em) : |
|
| 563 |
EdgeMap(const EdgeMap& em) : |
|
| 564 |
ReferenceMap<Edge, T, T&, const T&>(em) {}
|
|
| 565 | 565 |
///Assignment operator |
| 566 | 566 |
template <typename CMap> |
| 567 | 567 |
EdgeMap& operator=(const CMap&) {
|
| 568 | 568 |
checkConcept<ReadMap<Edge, T>, CMap>(); |
| 569 | 569 |
return *this; |
| 570 | 570 |
} |
| 571 | 571 |
}; |
| 572 | 572 |
|
| 573 | 573 |
/// \brief Direct the given edge. |
| 574 | 574 |
/// |
| 575 | 575 |
/// Direct the given edge. The returned arc source |
| 576 | 576 |
/// will be the given node. |
| 577 | 577 |
Arc direct(const Edge&, const Node&) const {
|
| 578 | 578 |
return INVALID; |
| 579 | 579 |
} |
| 580 | 580 |
|
| 581 | 581 |
/// \brief Direct the given edge. |
| 582 | 582 |
/// |
| 583 | 583 |
/// Direct the given edge. The returned arc |
| 584 | 584 |
/// represents the given edge and the direction comes |
| 585 | 585 |
/// from the bool parameter. The source of the edge and |
| 586 | 586 |
/// the directed arc is the same when the given bool is true. |
| 587 | 587 |
Arc direct(const Edge&, bool) const {
|
| 588 | 588 |
return INVALID; |
| ... | ... |
@@ -727,37 +727,38 @@ |
| 727 | 727 |
/// |
| 728 | 728 |
/// Returns the running node (the source in this case) of the |
| 729 | 729 |
/// iterator |
| 730 | 730 |
Node runningNode(InArcIt e) const {
|
| 731 | 731 |
return source(e); |
| 732 | 732 |
} |
| 733 | 733 |
|
| 734 | 734 |
/// \brief Base node of the iterator |
| 735 | 735 |
/// |
| 736 | 736 |
/// Returns the base node of the iterator |
| 737 | 737 |
Node baseNode(IncEdgeIt) const {
|
| 738 | 738 |
return INVALID; |
| 739 | 739 |
} |
| 740 | 740 |
|
| 741 | 741 |
/// \brief Running node of the iterator |
| 742 | 742 |
/// |
| 743 | 743 |
/// Returns the running node of the iterator |
| 744 | 744 |
Node runningNode(IncEdgeIt) const {
|
| 745 | 745 |
return INVALID; |
| 746 | 746 |
} |
| 747 | 747 |
|
| 748 | 748 |
template <typename _Graph> |
| 749 | 749 |
struct Constraints {
|
| 750 | 750 |
void constraints() {
|
| 751 |
checkConcept<BaseGraphComponent, _Graph>(); |
|
| 751 | 752 |
checkConcept<IterableGraphComponent<>, _Graph>(); |
| 752 | 753 |
checkConcept<IDableGraphComponent<>, _Graph>(); |
| 753 | 754 |
checkConcept<MappableGraphComponent<>, _Graph>(); |
| 754 | 755 |
} |
| 755 | 756 |
}; |
| 756 | 757 |
|
| 757 | 758 |
}; |
| 758 | 759 |
|
| 759 | 760 |
} |
| 760 | 761 |
|
| 761 | 762 |
} |
| 762 | 763 |
|
| 763 | 764 |
#endif |
| ... | ... |
@@ -10,1146 +10,1164 @@ |
| 10 | 10 |
* provided that this copyright notice appears in all copies. For |
| 11 | 11 |
* precise terms see the accompanying LICENSE file. |
| 12 | 12 |
* |
| 13 | 13 |
* This software is provided "AS IS" with no warranty of any kind, |
| 14 | 14 |
* express or implied, and with no claim as to its suitability for any |
| 15 | 15 |
* purpose. |
| 16 | 16 |
* |
| 17 | 17 |
*/ |
| 18 | 18 |
|
| 19 | 19 |
///\ingroup graph_concepts |
| 20 | 20 |
///\file |
| 21 | 21 |
///\brief The concept of graph components. |
| 22 | 22 |
|
| 23 | 23 |
#ifndef LEMON_CONCEPTS_GRAPH_COMPONENTS_H |
| 24 | 24 |
#define LEMON_CONCEPTS_GRAPH_COMPONENTS_H |
| 25 | 25 |
|
| 26 | 26 |
#include <lemon/core.h> |
| 27 | 27 |
#include <lemon/concepts/maps.h> |
| 28 | 28 |
|
| 29 | 29 |
#include <lemon/bits/alteration_notifier.h> |
| 30 | 30 |
|
| 31 | 31 |
namespace lemon {
|
| 32 | 32 |
namespace concepts {
|
| 33 | 33 |
|
| 34 |
/// \brief |
|
| 34 |
/// \brief Concept class for \c Node, \c Arc and \c Edge types. |
|
| 35 | 35 |
/// |
| 36 |
/// This class describes the interface of Node and Arc (and Edge |
|
| 37 |
/// in undirected graphs) subtypes of graph types. |
|
| 36 |
/// This class describes the concept of \c Node, \c Arc and \c Edge |
|
| 37 |
/// subtypes of digraph and graph types. |
|
| 38 | 38 |
/// |
| 39 | 39 |
/// \note This class is a template class so that we can use it to |
| 40 |
/// create graph skeleton classes. The reason for this is than Node |
|
| 41 |
/// and Arc types should \em not derive from the same base class. |
|
| 42 |
/// For Node you should instantiate it with character 'n' and for Arc |
|
| 43 |
/// with 'a'. |
|
| 44 |
|
|
| 40 |
/// create graph skeleton classes. The reason for this is that \c Node |
|
| 41 |
/// and \c Arc (or \c Edge) types should \e not derive from the same |
|
| 42 |
/// base class. For \c Node you should instantiate it with character |
|
| 43 |
/// \c 'n', for \c Arc with \c 'a' and for \c Edge with \c 'e'. |
|
| 45 | 44 |
#ifndef DOXYGEN |
| 46 | 45 |
template <char sel = '0'> |
| 47 | 46 |
#endif |
| 48 | 47 |
class GraphItem {
|
| 49 | 48 |
public: |
| 50 | 49 |
/// \brief Default constructor. |
| 51 | 50 |
/// |
| 51 |
/// Default constructor. |
|
| 52 | 52 |
/// \warning The default constructor is not required to set |
| 53 | 53 |
/// the item to some well-defined value. So you should consider it |
| 54 | 54 |
/// as uninitialized. |
| 55 | 55 |
GraphItem() {}
|
| 56 |
|
|
| 56 | 57 |
/// \brief Copy constructor. |
| 57 | 58 |
/// |
| 58 | 59 |
/// Copy constructor. |
| 60 |
GraphItem(const GraphItem &) {}
|
|
| 61 |
|
|
| 62 |
/// \brief Constructor for conversion from \c INVALID. |
|
| 59 | 63 |
/// |
| 60 |
GraphItem(const GraphItem &) {}
|
|
| 61 |
/// \brief Invalid constructor \& conversion. |
|
| 62 |
/// |
|
| 63 |
/// This constructor initializes the item to be invalid. |
|
| 64 |
/// Constructor for conversion from \c INVALID. |
|
| 65 |
/// It initializes the item to be invalid. |
|
| 64 | 66 |
/// \sa Invalid for more details. |
| 65 | 67 |
GraphItem(Invalid) {}
|
| 66 |
|
|
| 68 |
|
|
| 69 |
/// \brief Assignment operator. |
|
| 67 | 70 |
/// |
| 68 |
/// The nodes are assignable. |
|
| 69 |
/// |
|
| 70 |
|
|
| 71 |
/// Assignment operator for the item. |
|
| 72 |
GraphItem& operator=(const GraphItem&) { return *this; }
|
|
| 73 |
|
|
| 71 | 74 |
/// \brief Equality operator. |
| 72 | 75 |
/// |
| 73 |
/// Two iterators are equal if and only if they represents the |
|
| 74 |
/// same node in the graph or both are invalid. |
|
| 75 |
|
|
| 76 |
/// Equality operator. |
|
| 77 |
bool operator==(const GraphItem&) const { return false; }
|
|
| 78 |
|
|
| 76 | 79 |
/// \brief Inequality operator. |
| 77 | 80 |
/// |
| 78 |
/// |
|
| 81 |
/// Inequality operator. |
|
| 82 |
bool operator!=(const GraphItem&) const { return false; }
|
|
| 83 |
|
|
| 84 |
/// \brief Ordering operator. |
|
| 79 | 85 |
/// |
| 80 |
bool operator!=(GraphItem) const { return false; }
|
|
| 81 |
|
|
| 82 |
/// \brief Artificial ordering operator. |
|
| 83 |
/// |
|
| 84 |
/// To allow the use of graph descriptors as key type in std::map or |
|
| 85 |
/// similar associative container we require this. |
|
| 86 |
/// This operator defines an ordering of the items. |
|
| 87 |
/// It makes possible to use graph item types as key types in |
|
| 88 |
/// associative containers (e.g. \c std::map). |
|
| 86 | 89 |
/// |
| 87 | 90 |
/// \note This operator only have to define some strict ordering of |
| 88 | 91 |
/// the items; this order has nothing to do with the iteration |
| 89 | 92 |
/// ordering of the items. |
| 90 |
bool operator<(GraphItem) const { return false; }
|
|
| 93 |
bool operator<(const GraphItem&) const { return false; }
|
|
| 91 | 94 |
|
| 92 | 95 |
template<typename _GraphItem> |
| 93 | 96 |
struct Constraints {
|
| 94 | 97 |
void constraints() {
|
| 95 | 98 |
_GraphItem i1; |
| 96 | 99 |
_GraphItem i2 = i1; |
| 97 | 100 |
_GraphItem i3 = INVALID; |
| 98 | 101 |
|
| 99 | 102 |
i1 = i2 = i3; |
| 100 | 103 |
|
| 101 | 104 |
bool b; |
| 102 |
// b = (ia == ib) && (ia != ib) && (ia < ib); |
|
| 103 | 105 |
b = (ia == ib) && (ia != ib); |
| 104 | 106 |
b = (ia == INVALID) && (ib != INVALID); |
| 105 | 107 |
b = (ia < ib); |
| 106 | 108 |
} |
| 107 | 109 |
|
| 108 | 110 |
const _GraphItem &ia; |
| 109 | 111 |
const _GraphItem &ib; |
| 110 | 112 |
}; |
| 111 | 113 |
}; |
| 112 | 114 |
|
| 113 |
/// \brief |
|
| 115 |
/// \brief Base skeleton class for directed graphs. |
|
| 114 | 116 |
/// |
| 115 |
/// This class provides the minimal set of features needed for a |
|
| 116 |
/// directed graph structure. All digraph concepts have to |
|
| 117 |
/// conform to this base directed graph. It just provides types |
|
| 118 |
/// for nodes and arcs and functions to get the source and the |
|
| 119 |
/// |
|
| 117 |
/// This class describes the base interface of directed graph types. |
|
| 118 |
/// All digraph %concepts have to conform to this class. |
|
| 119 |
/// It just provides types for nodes and arcs and functions |
|
| 120 |
/// to get the source and the target nodes of arcs. |
|
| 120 | 121 |
class BaseDigraphComponent {
|
| 121 | 122 |
public: |
| 122 | 123 |
|
| 123 | 124 |
typedef BaseDigraphComponent Digraph; |
| 124 | 125 |
|
| 125 | 126 |
/// \brief Node class of the digraph. |
| 126 | 127 |
/// |
| 127 |
/// This class represents the Nodes of the digraph. |
|
| 128 |
/// |
|
| 128 |
/// This class represents the nodes of the digraph. |
|
| 129 | 129 |
typedef GraphItem<'n'> Node; |
| 130 | 130 |
|
| 131 | 131 |
/// \brief Arc class of the digraph. |
| 132 | 132 |
/// |
| 133 |
/// This class represents the |
|
| 133 |
/// This class represents the arcs of the digraph. |
|
| 134 |
typedef GraphItem<'a'> Arc; |
|
| 135 |
|
|
| 136 |
/// \brief Return the source node of an arc. |
|
| 134 | 137 |
/// |
| 135 |
|
|
| 138 |
/// This function returns the source node of an arc. |
|
| 139 |
Node source(const Arc&) const { return INVALID; }
|
|
| 136 | 140 |
|
| 137 |
/// \brief |
|
| 141 |
/// \brief Return the target node of an arc. |
|
| 138 | 142 |
/// |
| 139 |
/// |
|
| 143 |
/// This function returns the target node of an arc. |
|
| 144 |
Node target(const Arc&) const { return INVALID; }
|
|
| 145 |
|
|
| 146 |
/// \brief Return the opposite node on the given arc. |
|
| 140 | 147 |
/// |
| 141 |
Node target(const Arc&) const { return INVALID;}
|
|
| 142 |
|
|
| 143 |
/// \brief Gives back the source node of an arc. |
|
| 144 |
/// |
|
| 145 |
/// Gives back the source node of an arc. |
|
| 146 |
/// |
|
| 147 |
Node source(const Arc&) const { return INVALID;}
|
|
| 148 |
|
|
| 149 |
/// \brief Gives back the opposite node on the given arc. |
|
| 150 |
/// |
|
| 151 |
/// |
|
| 148 |
/// This function returns the opposite node on the given arc. |
|
| 152 | 149 |
Node oppositeNode(const Node&, const Arc&) const {
|
| 153 | 150 |
return INVALID; |
| 154 | 151 |
} |
| 155 | 152 |
|
| 156 | 153 |
template <typename _Digraph> |
| 157 | 154 |
struct Constraints {
|
| 158 | 155 |
typedef typename _Digraph::Node Node; |
| 159 | 156 |
typedef typename _Digraph::Arc Arc; |
| 160 | 157 |
|
| 161 | 158 |
void constraints() {
|
| 162 | 159 |
checkConcept<GraphItem<'n'>, Node>(); |
| 163 | 160 |
checkConcept<GraphItem<'a'>, Arc>(); |
| 164 | 161 |
{
|
| 165 | 162 |
Node n; |
| 166 | 163 |
Arc e(INVALID); |
| 167 | 164 |
n = digraph.source(e); |
| 168 | 165 |
n = digraph.target(e); |
| 169 | 166 |
n = digraph.oppositeNode(n, e); |
| 170 | 167 |
} |
| 171 | 168 |
} |
| 172 | 169 |
|
| 173 | 170 |
const _Digraph& digraph; |
| 174 | 171 |
}; |
| 175 | 172 |
}; |
| 176 | 173 |
|
| 177 |
/// \brief |
|
| 174 |
/// \brief Base skeleton class for undirected graphs. |
|
| 178 | 175 |
/// |
| 179 |
/// This class provides the minimal set of features needed for an |
|
| 180 |
/// undirected graph structure. All undirected graph concepts have |
|
| 181 |
/// to conform to this base graph. It just provides types for |
|
| 182 |
/// nodes, arcs and edges and functions to get the |
|
| 183 |
/// source and the target of the arcs and edges, |
|
| 184 |
/// conversion from arcs to edges and function to get |
|
| 185 |
/// |
|
| 176 |
/// This class describes the base interface of undirected graph types. |
|
| 177 |
/// All graph %concepts have to conform to this class. |
|
| 178 |
/// It extends the interface of \ref BaseDigraphComponent with an |
|
| 179 |
/// \c Edge type and functions to get the end nodes of edges, |
|
| 180 |
/// to convert from arcs to edges and to get both direction of edges. |
|
| 186 | 181 |
class BaseGraphComponent : public BaseDigraphComponent {
|
| 187 | 182 |
public: |
| 188 | 183 |
typedef BaseDigraphComponent::Node Node; |
| 189 | 184 |
typedef BaseDigraphComponent::Arc Arc; |
| 190 |
|
|
| 185 |
|
|
| 186 |
/// \brief Undirected edge class of the graph. |
|
| 191 | 187 |
/// |
| 192 |
/// This class represents the edges of the graph. |
|
| 193 |
/// The undirected graphs can be used as a directed graph which |
|
| 194 |
/// for each arc contains the opposite arc too so the graph is |
|
| 195 |
/// bidirected. The edge represents two opposite |
|
| 196 |
/// directed arcs. |
|
| 197 |
class Edge : public GraphItem<'u'> {
|
|
| 188 |
/// This class represents the undirected edges of the graph. |
|
| 189 |
/// Undirected graphs can be used as directed graphs, each edge is |
|
| 190 |
/// represented by two opposite directed arcs. |
|
| 191 |
class Edge : public GraphItem<'e'> {
|
|
| 198 | 192 |
public: |
| 199 |
typedef GraphItem<' |
|
| 193 |
typedef GraphItem<'e'> Parent; |
|
| 194 |
|
|
| 200 | 195 |
/// \brief Default constructor. |
| 201 | 196 |
/// |
| 197 |
/// Default constructor. |
|
| 202 | 198 |
/// \warning The default constructor is not required to set |
| 203 | 199 |
/// the item to some well-defined value. So you should consider it |
| 204 | 200 |
/// as uninitialized. |
| 205 | 201 |
Edge() {}
|
| 202 |
|
|
| 206 | 203 |
/// \brief Copy constructor. |
| 207 | 204 |
/// |
| 208 | 205 |
/// Copy constructor. |
| 206 |
Edge(const Edge &) : Parent() {}
|
|
| 207 |
|
|
| 208 |
/// \brief Constructor for conversion from \c INVALID. |
|
| 209 | 209 |
/// |
| 210 |
Edge(const Edge &) : Parent() {}
|
|
| 211 |
/// \brief Invalid constructor \& conversion. |
|
| 212 |
/// |
|
| 213 |
/// This constructor initializes the item to be invalid. |
|
| 210 |
/// Constructor for conversion from \c INVALID. |
|
| 211 |
/// It initializes the item to be invalid. |
|
| 214 | 212 |
/// \sa Invalid for more details. |
| 215 | 213 |
Edge(Invalid) {}
|
| 216 |
|
|
| 214 |
|
|
| 215 |
/// \brief Constructor for conversion from an arc. |
|
| 217 | 216 |
/// |
| 217 |
/// Constructor for conversion from an arc. |
|
| 218 | 218 |
/// Besides the core graph item functionality each arc should |
| 219 | 219 |
/// be convertible to the represented edge. |
| 220 | 220 |
Edge(const Arc&) {}
|
| 221 |
|
|
| 221 |
|
|
| 222 |
/// \brief Assign an arc to an edge. |
|
| 222 | 223 |
/// |
| 224 |
/// This function assigns an arc to an edge. |
|
| 223 | 225 |
/// Besides the core graph item functionality each arc should |
| 224 | 226 |
/// be convertible to the represented edge. |
| 225 | 227 |
Edge& operator=(const Arc&) { return *this; }
|
| 226 | 228 |
}; |
| 227 | 229 |
|
| 228 |
/// \brief |
|
| 230 |
/// \brief Return one end node of an edge. |
|
| 231 |
/// |
|
| 232 |
/// This function returns one end node of an edge. |
|
| 233 |
Node u(const Edge&) const { return INVALID; }
|
|
| 234 |
|
|
| 235 |
/// \brief Return the other end node of an edge. |
|
| 236 |
/// |
|
| 237 |
/// This function returns the other end node of an edge. |
|
| 238 |
Node v(const Edge&) const { return INVALID; }
|
|
| 239 |
|
|
| 240 |
/// \brief Return a directed arc related to an edge. |
|
| 241 |
/// |
|
| 242 |
/// This function returns a directed arc from its direction and the |
|
| 243 |
/// represented edge. |
|
| 244 |
Arc direct(const Edge&, bool) const { return INVALID; }
|
|
| 245 |
|
|
| 246 |
/// \brief Return a directed arc related to an edge. |
|
| 247 |
/// |
|
| 248 |
/// This function returns a directed arc from its source node and the |
|
| 249 |
/// represented edge. |
|
| 250 |
Arc direct(const Edge&, const Node&) const { return INVALID; }
|
|
| 251 |
|
|
| 252 |
/// \brief Return the direction of the arc. |
|
| 229 | 253 |
/// |
| 230 | 254 |
/// Returns the direction of the arc. Each arc represents an |
| 231 | 255 |
/// edge with a direction. It gives back the |
| 232 | 256 |
/// direction. |
| 233 | 257 |
bool direction(const Arc&) const { return true; }
|
| 234 | 258 |
|
| 235 |
/// \brief |
|
| 259 |
/// \brief Return the opposite arc. |
|
| 236 | 260 |
/// |
| 237 |
/// Returns the directed arc from its direction and the |
|
| 238 |
/// represented edge. |
|
| 239 |
Arc direct(const Edge&, bool) const { return INVALID;}
|
|
| 240 |
|
|
| 241 |
/// \brief Returns the directed arc. |
|
| 242 |
/// |
|
| 243 |
/// Returns the directed arc from its source and the |
|
| 244 |
/// represented edge. |
|
| 245 |
Arc direct(const Edge&, const Node&) const { return INVALID;}
|
|
| 246 |
|
|
| 247 |
/// \brief Returns the opposite arc. |
|
| 248 |
/// |
|
| 249 |
/// Returns the opposite arc. It is the arc representing the |
|
| 250 |
/// same edge and has opposite direction. |
|
| 251 |
Arc oppositeArc(const Arc&) const { return INVALID;}
|
|
| 252 |
|
|
| 253 |
/// \brief Gives back one ending of an edge. |
|
| 254 |
/// |
|
| 255 |
/// Gives back one ending of an edge. |
|
| 256 |
Node u(const Edge&) const { return INVALID;}
|
|
| 257 |
|
|
| 258 |
/// \brief Gives back the other ending of an edge. |
|
| 259 |
/// |
|
| 260 |
/// Gives back the other ending of an edge. |
|
| 261 |
|
|
| 261 |
/// This function returns the opposite arc, i.e. the arc representing |
|
| 262 |
/// the same edge and has opposite direction. |
|
| 263 |
Arc oppositeArc(const Arc&) const { return INVALID; }
|
|
| 262 | 264 |
|
| 263 | 265 |
template <typename _Graph> |
| 264 | 266 |
struct Constraints {
|
| 265 | 267 |
typedef typename _Graph::Node Node; |
| 266 | 268 |
typedef typename _Graph::Arc Arc; |
| 267 | 269 |
typedef typename _Graph::Edge Edge; |
| 268 | 270 |
|
| 269 | 271 |
void constraints() {
|
| 270 | 272 |
checkConcept<BaseDigraphComponent, _Graph>(); |
| 271 |
checkConcept<GraphItem<' |
|
| 273 |
checkConcept<GraphItem<'e'>, Edge>(); |
|
| 272 | 274 |
{
|
| 273 | 275 |
Node n; |
| 274 | 276 |
Edge ue(INVALID); |
| 275 | 277 |
Arc e; |
| 276 | 278 |
n = graph.u(ue); |
| 277 | 279 |
n = graph.v(ue); |
| 278 | 280 |
e = graph.direct(ue, true); |
| 281 |
e = graph.direct(ue, false); |
|
| 279 | 282 |
e = graph.direct(ue, n); |
| 280 | 283 |
e = graph.oppositeArc(e); |
| 281 | 284 |
ue = e; |
| 282 | 285 |
bool d = graph.direction(e); |
| 283 | 286 |
ignore_unused_variable_warning(d); |
| 284 | 287 |
} |
| 285 | 288 |
} |
| 286 | 289 |
|
| 287 | 290 |
const _Graph& graph; |
| 288 | 291 |
}; |
| 289 | 292 |
|
| 290 | 293 |
}; |
| 291 | 294 |
|
| 292 |
/// \brief |
|
| 295 |
/// \brief Skeleton class for \e idable directed graphs. |
|
| 293 | 296 |
/// |
| 294 |
/// This class provides beside the core digraph features |
|
| 295 |
/// core id functions for the digraph structure. |
|
| 296 |
/// The most of the base digraphs should conform to this concept. |
|
| 297 |
/// The id's are unique and immutable. |
|
| 297 |
/// This class describes the interface of \e idable directed graphs. |
|
| 298 |
/// It extends \ref BaseDigraphComponent with the core ID functions. |
|
| 299 |
/// The ids of the items must be unique and immutable. |
|
| 300 |
/// This concept is part of the Digraph concept. |
|
| 298 | 301 |
template <typename BAS = BaseDigraphComponent> |
| 299 | 302 |
class IDableDigraphComponent : public BAS {
|
| 300 | 303 |
public: |
| 301 | 304 |
|
| 302 | 305 |
typedef BAS Base; |
| 303 | 306 |
typedef typename Base::Node Node; |
| 304 | 307 |
typedef typename Base::Arc Arc; |
| 305 | 308 |
|
| 306 |
/// \brief |
|
| 309 |
/// \brief Return a unique integer id for the given node. |
|
| 307 | 310 |
/// |
| 308 |
/// |
|
| 311 |
/// This function returns a unique integer id for the given node. |
|
| 312 |
int id(const Node&) const { return -1; }
|
|
| 313 |
|
|
| 314 |
/// \brief Return the node by its unique id. |
|
| 309 | 315 |
/// |
| 310 |
|
|
| 316 |
/// This function returns the node by its unique id. |
|
| 317 |
/// If the digraph does not contain a node with the given id, |
|
| 318 |
/// then the result of the function is undefined. |
|
| 319 |
Node nodeFromId(int) const { return INVALID; }
|
|
| 311 | 320 |
|
| 312 |
/// \brief |
|
| 321 |
/// \brief Return a unique integer id for the given arc. |
|
| 313 | 322 |
/// |
| 314 |
/// Gives back the node by the unique id. |
|
| 315 |
/// If the digraph does not contain node with the given id |
|
| 316 |
/// then the result of the function is undetermined. |
|
| 317 |
Node nodeFromId(int) const { return INVALID;}
|
|
| 323 |
/// This function returns a unique integer id for the given arc. |
|
| 324 |
int id(const Arc&) const { return -1; }
|
|
| 318 | 325 |
|
| 319 |
/// \brief |
|
| 326 |
/// \brief Return the arc by its unique id. |
|
| 320 | 327 |
/// |
| 321 |
/// |
|
| 328 |
/// This function returns the arc by its unique id. |
|
| 329 |
/// If the digraph does not contain an arc with the given id, |
|
| 330 |
/// then the result of the function is undefined. |
|
| 331 |
Arc arcFromId(int) const { return INVALID; }
|
|
| 332 |
|
|
| 333 |
/// \brief Return an integer greater or equal to the maximum |
|
| 334 |
/// node id. |
|
| 322 | 335 |
/// |
| 323 |
|
|
| 336 |
/// This function returns an integer greater or equal to the |
|
| 337 |
/// maximum node id. |
|
| 338 |
int maxNodeId() const { return -1; }
|
|
| 324 | 339 |
|
| 325 |
/// \brief |
|
| 340 |
/// \brief Return an integer greater or equal to the maximum |
|
| 341 |
/// arc id. |
|
| 326 | 342 |
/// |
| 327 |
/// Gives back the arc by the unique id. |
|
| 328 |
/// If the digraph does not contain arc with the given id |
|
| 329 |
/// then the result of the function is undetermined. |
|
| 330 |
Arc arcFromId(int) const { return INVALID;}
|
|
| 331 |
|
|
| 332 |
/// \brief Gives back an integer greater or equal to the maximum |
|
| 333 |
/// Node id. |
|
| 334 |
/// |
|
| 335 |
/// Gives back an integer greater or equal to the maximum Node |
|
| 336 |
/// id. |
|
| 337 |
int maxNodeId() const { return -1;}
|
|
| 338 |
|
|
| 339 |
/// \brief Gives back an integer greater or equal to the maximum |
|
| 340 |
/// Arc id. |
|
| 341 |
/// |
|
| 342 |
/// Gives back an integer greater or equal to the maximum Arc |
|
| 343 |
/// id. |
|
| 344 |
int maxArcId() const { return -1;}
|
|
| 343 |
/// This function returns an integer greater or equal to the |
|
| 344 |
/// maximum arc id. |
|
| 345 |
int maxArcId() const { return -1; }
|
|
| 345 | 346 |
|
| 346 | 347 |
template <typename _Digraph> |
| 347 | 348 |
struct Constraints {
|
| 348 | 349 |
|
| 349 | 350 |
void constraints() {
|
| 350 | 351 |
checkConcept<Base, _Digraph >(); |
| 351 | 352 |
typename _Digraph::Node node; |
| 352 | 353 |
int nid = digraph.id(node); |
| 353 | 354 |
nid = digraph.id(node); |
| 354 | 355 |
node = digraph.nodeFromId(nid); |
| 355 | 356 |
typename _Digraph::Arc arc; |
| 356 | 357 |
int eid = digraph.id(arc); |
| 357 | 358 |
eid = digraph.id(arc); |
| 358 | 359 |
arc = digraph.arcFromId(eid); |
| 359 | 360 |
|
| 360 | 361 |
nid = digraph.maxNodeId(); |
| 361 | 362 |
ignore_unused_variable_warning(nid); |
| 362 | 363 |
eid = digraph.maxArcId(); |
| 363 | 364 |
ignore_unused_variable_warning(eid); |
| 364 | 365 |
} |
| 365 | 366 |
|
| 366 | 367 |
const _Digraph& digraph; |
| 367 | 368 |
}; |
| 368 | 369 |
}; |
| 369 | 370 |
|
| 370 |
/// \brief |
|
| 371 |
/// \brief Skeleton class for \e idable undirected graphs. |
|
| 371 | 372 |
/// |
| 372 |
/// This class provides beside the core undirected graph features |
|
| 373 |
/// core id functions for the undirected graph structure. The |
|
| 374 |
/// most of the base undirected graphs should conform to this |
|
| 375 |
/// concept. The id's are unique and immutable. |
|
| 373 |
/// This class describes the interface of \e idable undirected |
|
| 374 |
/// graphs. It extends \ref IDableDigraphComponent with the core ID |
|
| 375 |
/// functions of undirected graphs. |
|
| 376 |
/// The ids of the items must be unique and immutable. |
|
| 377 |
/// This concept is part of the Graph concept. |
|
| 376 | 378 |
template <typename BAS = BaseGraphComponent> |
| 377 | 379 |
class IDableGraphComponent : public IDableDigraphComponent<BAS> {
|
| 378 | 380 |
public: |
| 379 | 381 |
|
| 380 | 382 |
typedef BAS Base; |
| 381 | 383 |
typedef typename Base::Edge Edge; |
| 382 | 384 |
|
| 383 | 385 |
using IDableDigraphComponent<Base>::id; |
| 384 | 386 |
|
| 385 |
/// \brief |
|
| 387 |
/// \brief Return a unique integer id for the given edge. |
|
| 386 | 388 |
/// |
| 387 |
/// |
|
| 389 |
/// This function returns a unique integer id for the given edge. |
|
| 390 |
int id(const Edge&) const { return -1; }
|
|
| 391 |
|
|
| 392 |
/// \brief Return the edge by its unique id. |
|
| 388 | 393 |
/// |
| 389 |
|
|
| 394 |
/// This function returns the edge by its unique id. |
|
| 395 |
/// If the graph does not contain an edge with the given id, |
|
| 396 |
/// then the result of the function is undefined. |
|
| 397 |
Edge edgeFromId(int) const { return INVALID; }
|
|
| 390 | 398 |
|
| 391 |
/// \brief |
|
| 399 |
/// \brief Return an integer greater or equal to the maximum |
|
| 400 |
/// edge id. |
|
| 392 | 401 |
/// |
| 393 |
/// Gives back the edge by the unique id. If the |
|
| 394 |
/// graph does not contain arc with the given id then the |
|
| 395 |
/// result of the function is undetermined. |
|
| 396 |
Edge edgeFromId(int) const { return INVALID;}
|
|
| 397 |
|
|
| 398 |
/// \brief Gives back an integer greater or equal to the maximum |
|
| 399 |
/// Edge id. |
|
| 400 |
/// |
|
| 401 |
/// Gives back an integer greater or equal to the maximum Edge |
|
| 402 |
/// id. |
|
| 403 |
|
|
| 402 |
/// This function returns an integer greater or equal to the |
|
| 403 |
/// maximum edge id. |
|
| 404 |
int maxEdgeId() const { return -1; }
|
|
| 404 | 405 |
|
| 405 | 406 |
template <typename _Graph> |
| 406 | 407 |
struct Constraints {
|
| 407 | 408 |
|
| 408 | 409 |
void constraints() {
|
| 409 |
checkConcept<Base, _Graph >(); |
|
| 410 | 410 |
checkConcept<IDableDigraphComponent<Base>, _Graph >(); |
| 411 | 411 |
typename _Graph::Edge edge; |
| 412 | 412 |
int ueid = graph.id(edge); |
| 413 | 413 |
ueid = graph.id(edge); |
| 414 | 414 |
edge = graph.edgeFromId(ueid); |
| 415 | 415 |
ueid = graph.maxEdgeId(); |
| 416 | 416 |
ignore_unused_variable_warning(ueid); |
| 417 | 417 |
} |
| 418 | 418 |
|
| 419 | 419 |
const _Graph& graph; |
| 420 | 420 |
}; |
| 421 | 421 |
}; |
| 422 | 422 |
|
| 423 |
/// \brief |
|
| 423 |
/// \brief Concept class for \c NodeIt, \c ArcIt and \c EdgeIt types. |
|
| 424 | 424 |
/// |
| 425 |
/// Skeleton class for graph NodeIt and ArcIt. |
|
| 426 |
/// |
|
| 425 |
/// This class describes the concept of \c NodeIt, \c ArcIt and |
|
| 426 |
/// \c EdgeIt subtypes of digraph and graph types. |
|
| 427 | 427 |
template <typename GR, typename Item> |
| 428 | 428 |
class GraphItemIt : public Item {
|
| 429 | 429 |
public: |
| 430 | 430 |
/// \brief Default constructor. |
| 431 | 431 |
/// |
| 432 |
/// @warning The default constructor sets the iterator |
|
| 433 |
/// to an undefined value. |
|
| 432 |
/// Default constructor. |
|
| 433 |
/// \warning The default constructor is not required to set |
|
| 434 |
/// the iterator to some well-defined value. So you should consider it |
|
| 435 |
/// as uninitialized. |
|
| 434 | 436 |
GraphItemIt() {}
|
| 437 |
|
|
| 435 | 438 |
/// \brief Copy constructor. |
| 436 | 439 |
/// |
| 437 | 440 |
/// Copy constructor. |
| 441 |
GraphItemIt(const GraphItemIt& it) : Item(it) {}
|
|
| 442 |
|
|
| 443 |
/// \brief Constructor that sets the iterator to the first item. |
|
| 438 | 444 |
/// |
| 439 |
GraphItemIt(const GraphItemIt& ) {}
|
|
| 440 |
/// \brief Sets the iterator to the first item. |
|
| 445 |
/// Constructor that sets the iterator to the first item. |
|
| 446 |
explicit GraphItemIt(const GR&) {}
|
|
| 447 |
|
|
| 448 |
/// \brief Constructor for conversion from \c INVALID. |
|
| 441 | 449 |
/// |
| 442 |
/// Sets the iterator to the first item of \c the graph. |
|
| 443 |
/// |
|
| 444 |
explicit GraphItemIt(const GR&) {}
|
|
| 445 |
/// \brief Invalid constructor \& conversion. |
|
| 446 |
/// |
|
| 447 |
/// This constructor initializes the item to be invalid. |
|
| 450 |
/// Constructor for conversion from \c INVALID. |
|
| 451 |
/// It initializes the iterator to be invalid. |
|
| 448 | 452 |
/// \sa Invalid for more details. |
| 449 | 453 |
GraphItemIt(Invalid) {}
|
| 450 |
|
|
| 454 |
|
|
| 455 |
/// \brief Assignment operator. |
|
| 451 | 456 |
/// |
| 452 |
/// |
|
| 457 |
/// Assignment operator for the iterator. |
|
| 458 |
GraphItemIt& operator=(const GraphItemIt&) { return *this; }
|
|
| 459 |
|
|
| 460 |
/// \brief Increment the iterator. |
|
| 453 | 461 |
/// |
| 454 |
GraphItemIt& operator=(const GraphItemIt&) { return *this; }
|
|
| 455 |
/// \brief Next item. |
|
| 456 |
/// |
|
| 457 |
/// Assign the iterator to the next item. |
|
| 458 |
/// |
|
| 462 |
/// This operator increments the iterator, i.e. assigns it to the |
|
| 463 |
/// next item. |
|
| 459 | 464 |
GraphItemIt& operator++() { return *this; }
|
| 465 |
|
|
| 460 | 466 |
/// \brief Equality operator |
| 461 | 467 |
/// |
| 468 |
/// Equality operator. |
|
| 462 | 469 |
/// Two iterators are equal if and only if they point to the |
| 463 | 470 |
/// same object or both are invalid. |
| 464 | 471 |
bool operator==(const GraphItemIt&) const { return true;}
|
| 472 |
|
|
| 465 | 473 |
/// \brief Inequality operator |
| 466 | 474 |
/// |
| 467 |
/// \sa operator==(Node n) |
|
| 468 |
/// |
|
| 475 |
/// Inequality operator. |
|
| 476 |
/// Two iterators are equal if and only if they point to the |
|
| 477 |
/// same object or both are invalid. |
|
| 469 | 478 |
bool operator!=(const GraphItemIt&) const { return true;}
|
| 470 | 479 |
|
| 471 | 480 |
template<typename _GraphItemIt> |
| 472 | 481 |
struct Constraints {
|
| 473 | 482 |
void constraints() {
|
| 483 |
checkConcept<GraphItem<>, _GraphItemIt>(); |
|
| 474 | 484 |
_GraphItemIt it1(g); |
| 475 | 485 |
_GraphItemIt it2; |
| 486 |
_GraphItemIt it3 = it1; |
|
| 487 |
_GraphItemIt it4 = INVALID; |
|
| 476 | 488 |
|
| 477 | 489 |
it2 = ++it1; |
| 478 | 490 |
++it2 = it1; |
| 479 | 491 |
++(++it1); |
| 480 | 492 |
|
| 481 | 493 |
Item bi = it1; |
| 482 | 494 |
bi = it2; |
| 483 | 495 |
} |
| 484 |
GR& g; |
|
| 496 |
const GR& g; |
|
| 485 | 497 |
}; |
| 486 | 498 |
}; |
| 487 | 499 |
|
| 488 |
/// \brief |
|
| 500 |
/// \brief Concept class for \c InArcIt, \c OutArcIt and |
|
| 501 |
/// \c IncEdgeIt types. |
|
| 489 | 502 |
/// |
| 490 |
/// \note Because InArcIt and OutArcIt may not inherit from the same |
|
| 491 |
/// base class, the \c sel is a additional template parameter (selector). |
|
| 492 |
/// For InArcIt you should instantiate it with character 'i' and for |
|
| 493 |
/// OutArcIt with 'o'. |
|
| 503 |
/// This class describes the concept of \c InArcIt, \c OutArcIt |
|
| 504 |
/// and \c IncEdgeIt subtypes of digraph and graph types. |
|
| 505 |
/// |
|
| 506 |
/// \note Since these iterator classes do not inherit from the same |
|
| 507 |
/// base class, there is an additional template parameter (selector) |
|
| 508 |
/// \c sel. For \c InArcIt you should instantiate it with character |
|
| 509 |
/// \c 'i', for \c OutArcIt with \c 'o' and for \c IncEdgeIt with \c 'e'. |
|
| 494 | 510 |
template <typename GR, |
| 495 | 511 |
typename Item = typename GR::Arc, |
| 496 | 512 |
typename Base = typename GR::Node, |
| 497 | 513 |
char sel = '0'> |
| 498 | 514 |
class GraphIncIt : public Item {
|
| 499 | 515 |
public: |
| 500 | 516 |
/// \brief Default constructor. |
| 501 | 517 |
/// |
| 502 |
/// @warning The default constructor sets the iterator |
|
| 503 |
/// to an undefined value. |
|
| 518 |
/// Default constructor. |
|
| 519 |
/// \warning The default constructor is not required to set |
|
| 520 |
/// the iterator to some well-defined value. So you should consider it |
|
| 521 |
/// as uninitialized. |
|
| 504 | 522 |
GraphIncIt() {}
|
| 523 |
|
|
| 505 | 524 |
/// \brief Copy constructor. |
| 506 | 525 |
/// |
| 507 | 526 |
/// Copy constructor. |
| 527 |
GraphIncIt(const GraphIncIt& it) : Item(it) {}
|
|
| 528 |
|
|
| 529 |
/// \brief Constructor that sets the iterator to the first |
|
| 530 |
/// incoming or outgoing arc. |
|
| 508 | 531 |
/// |
| 509 |
GraphIncIt(GraphIncIt const& gi) : Item(gi) {}
|
|
| 510 |
/// \brief Sets the iterator to the first arc incoming into or outgoing |
|
| 511 |
/// |
|
| 532 |
/// Constructor that sets the iterator to the first arc |
|
| 533 |
/// incoming to or outgoing from the given node. |
|
| 534 |
explicit GraphIncIt(const GR&, const Base&) {}
|
|
| 535 |
|
|
| 536 |
/// \brief Constructor for conversion from \c INVALID. |
|
| 512 | 537 |
/// |
| 513 |
/// Sets the iterator to the first arc incoming into or outgoing |
|
| 514 |
/// from the node. |
|
| 515 |
/// |
|
| 516 |
explicit GraphIncIt(const GR&, const Base&) {}
|
|
| 517 |
/// \brief Invalid constructor \& conversion. |
|
| 518 |
/// |
|
| 519 |
/// |
|
| 538 |
/// Constructor for conversion from \c INVALID. |
|
| 539 |
/// It initializes the iterator to be invalid. |
|
| 520 | 540 |
/// \sa Invalid for more details. |
| 521 | 541 |
GraphIncIt(Invalid) {}
|
| 522 |
|
|
| 542 |
|
|
| 543 |
/// \brief Assignment operator. |
|
| 523 | 544 |
/// |
| 524 |
/// |
|
| 545 |
/// Assignment operator for the iterator. |
|
| 546 |
GraphIncIt& operator=(const GraphIncIt&) { return *this; }
|
|
| 547 |
|
|
| 548 |
/// \brief Increment the iterator. |
|
| 525 | 549 |
/// |
| 526 |
GraphIncIt& operator=(GraphIncIt const&) { return *this; }
|
|
| 527 |
/// \brief Next item. |
|
| 528 |
/// |
|
| 529 |
/// Assign the iterator to the next item. |
|
| 530 |
/// |
|
| 550 |
/// This operator increments the iterator, i.e. assigns it to the |
|
| 551 |
/// next arc incoming to or outgoing from the given node. |
|
| 531 | 552 |
GraphIncIt& operator++() { return *this; }
|
| 532 | 553 |
|
| 533 | 554 |
/// \brief Equality operator |
| 534 | 555 |
/// |
| 556 |
/// Equality operator. |
|
| 535 | 557 |
/// Two iterators are equal if and only if they point to the |
| 536 | 558 |
/// same object or both are invalid. |
| 537 | 559 |
bool operator==(const GraphIncIt&) const { return true;}
|
| 538 | 560 |
|
| 539 | 561 |
/// \brief Inequality operator |
| 540 | 562 |
/// |
| 541 |
/// \sa operator==(Node n) |
|
| 542 |
/// |
|
| 563 |
/// Inequality operator. |
|
| 564 |
/// Two iterators are equal if and only if they point to the |
|
| 565 |
/// same object or both are invalid. |
|
| 543 | 566 |
bool operator!=(const GraphIncIt&) const { return true;}
|
| 544 | 567 |
|
| 545 | 568 |
template <typename _GraphIncIt> |
| 546 | 569 |
struct Constraints {
|
| 547 | 570 |
void constraints() {
|
| 548 | 571 |
checkConcept<GraphItem<sel>, _GraphIncIt>(); |
| 549 | 572 |
_GraphIncIt it1(graph, node); |
| 550 | 573 |
_GraphIncIt it2; |
| 574 |
_GraphIncIt it3 = it1; |
|
| 575 |
_GraphIncIt it4 = INVALID; |
|
| 551 | 576 |
|
| 552 | 577 |
it2 = ++it1; |
| 553 | 578 |
++it2 = it1; |
| 554 | 579 |
++(++it1); |
| 555 | 580 |
Item e = it1; |
| 556 | 581 |
e = it2; |
| 557 |
|
|
| 558 | 582 |
} |
| 559 |
|
|
| 560 |
Item arc; |
|
| 561 |
Base node; |
|
| 562 |
GR graph; |
|
| 563 |
|
|
| 583 |
const Base& node; |
|
| 584 |
const GR& graph; |
|
| 564 | 585 |
}; |
| 565 | 586 |
}; |
| 566 | 587 |
|
| 567 |
|
|
| 568 |
/// \brief An empty iterable digraph class. |
|
| 588 |
/// \brief Skeleton class for iterable directed graphs. |
|
| 569 | 589 |
/// |
| 570 |
/// This class provides beside the core digraph features |
|
| 571 |
/// iterator based iterable interface for the digraph structure. |
|
| 590 |
/// This class describes the interface of iterable directed |
|
| 591 |
/// graphs. It extends \ref BaseDigraphComponent with the core |
|
| 592 |
/// iterable interface. |
|
| 572 | 593 |
/// This concept is part of the Digraph concept. |
| 573 | 594 |
template <typename BAS = BaseDigraphComponent> |
| 574 | 595 |
class IterableDigraphComponent : public BAS {
|
| 575 | 596 |
|
| 576 | 597 |
public: |
| 577 | 598 |
|
| 578 | 599 |
typedef BAS Base; |
| 579 | 600 |
typedef typename Base::Node Node; |
| 580 | 601 |
typedef typename Base::Arc Arc; |
| 581 | 602 |
|
| 582 | 603 |
typedef IterableDigraphComponent Digraph; |
| 583 | 604 |
|
| 584 |
/// \name Base |
|
| 605 |
/// \name Base Iteration |
|
| 585 | 606 |
/// |
| 586 |
/// This interface provides functions for iteration on digraph items |
|
| 607 |
/// This interface provides functions for iteration on digraph items. |
|
| 587 | 608 |
/// |
| 588 | 609 |
/// @{
|
| 589 | 610 |
|
| 590 |
/// \brief |
|
| 611 |
/// \brief Return the first node. |
|
| 591 | 612 |
/// |
| 592 |
/// Gives back the first node in the iterating order. |
|
| 593 |
/// |
|
| 613 |
/// This function gives back the first node in the iteration order. |
|
| 594 | 614 |
void first(Node&) const {}
|
| 595 | 615 |
|
| 596 |
/// \brief |
|
| 616 |
/// \brief Return the next node. |
|
| 597 | 617 |
/// |
| 598 |
/// Gives back the next node in the iterating order. |
|
| 599 |
/// |
|
| 618 |
/// This function gives back the next node in the iteration order. |
|
| 600 | 619 |
void next(Node&) const {}
|
| 601 | 620 |
|
| 602 |
/// \brief |
|
| 621 |
/// \brief Return the first arc. |
|
| 603 | 622 |
/// |
| 604 |
/// Gives back the first arc in the iterating order. |
|
| 605 |
/// |
|
| 623 |
/// This function gives back the first arc in the iteration order. |
|
| 606 | 624 |
void first(Arc&) const {}
|
| 607 | 625 |
|
| 608 |
/// \brief |
|
| 626 |
/// \brief Return the next arc. |
|
| 609 | 627 |
/// |
| 610 |
/// Gives back the next arc in the iterating order. |
|
| 611 |
/// |
|
| 628 |
/// This function gives back the next arc in the iteration order. |
|
| 612 | 629 |
void next(Arc&) const {}
|
| 613 | 630 |
|
| 614 |
|
|
| 615 |
/// \brief Gives back the first of the arcs point to the given |
|
| 616 |
/// node. |
|
| 631 |
/// \brief Return the first arc incomming to the given node. |
|
| 617 | 632 |
/// |
| 618 |
/// Gives back the first of the arcs point to the given node. |
|
| 619 |
/// |
|
| 633 |
/// This function gives back the first arc incomming to the |
|
| 634 |
/// given node. |
|
| 620 | 635 |
void firstIn(Arc&, const Node&) const {}
|
| 621 | 636 |
|
| 622 |
/// \brief Gives back the next of the arcs points to the given |
|
| 623 |
/// node. |
|
| 637 |
/// \brief Return the next arc incomming to the given node. |
|
| 624 | 638 |
/// |
| 625 |
/// Gives back the next of the arcs points to the given node. |
|
| 626 |
/// |
|
| 639 |
/// This function gives back the next arc incomming to the |
|
| 640 |
/// given node. |
|
| 627 | 641 |
void nextIn(Arc&) const {}
|
| 628 | 642 |
|
| 629 |
/// \brief |
|
| 643 |
/// \brief Return the first arc outgoing form the given node. |
|
| 644 |
/// |
|
| 645 |
/// This function gives back the first arc outgoing form the |
|
| 630 | 646 |
/// given node. |
| 631 |
/// |
|
| 632 |
/// Gives back the first of the arcs start from the given node. |
|
| 633 |
/// |
|
| 634 | 647 |
void firstOut(Arc&, const Node&) const {}
|
| 635 | 648 |
|
| 636 |
/// \brief Gives back the next of the arcs start from the given |
|
| 637 |
/// node. |
|
| 649 |
/// \brief Return the next arc outgoing form the given node. |
|
| 638 | 650 |
/// |
| 639 |
/// Gives back the next of the arcs start from the given node. |
|
| 640 |
/// |
|
| 651 |
/// This function gives back the next arc outgoing form the |
|
| 652 |
/// given node. |
|
| 641 | 653 |
void nextOut(Arc&) const {}
|
| 642 | 654 |
|
| 643 | 655 |
/// @} |
| 644 | 656 |
|
| 645 |
/// \name Class |
|
| 657 |
/// \name Class Based Iteration |
|
| 646 | 658 |
/// |
| 647 |
/// This interface provides |
|
| 659 |
/// This interface provides iterator classes for digraph items. |
|
| 648 | 660 |
/// |
| 649 | 661 |
/// @{
|
| 650 | 662 |
|
| 651 | 663 |
/// \brief This iterator goes through each node. |
| 652 | 664 |
/// |
| 653 | 665 |
/// This iterator goes through each node. |
| 654 | 666 |
/// |
| 655 | 667 |
typedef GraphItemIt<Digraph, Node> NodeIt; |
| 656 | 668 |
|
| 657 |
/// \brief This iterator goes through each |
|
| 669 |
/// \brief This iterator goes through each arc. |
|
| 658 | 670 |
/// |
| 659 |
/// This iterator goes through each |
|
| 671 |
/// This iterator goes through each arc. |
|
| 660 | 672 |
/// |
| 661 | 673 |
typedef GraphItemIt<Digraph, Arc> ArcIt; |
| 662 | 674 |
|
| 663 | 675 |
/// \brief This iterator goes trough the incoming arcs of a node. |
| 664 | 676 |
/// |
| 665 |
/// This iterator goes trough the \e |
|
| 677 |
/// This iterator goes trough the \e incoming arcs of a certain node |
|
| 666 | 678 |
/// of a digraph. |
| 667 | 679 |
typedef GraphIncIt<Digraph, Arc, Node, 'i'> InArcIt; |
| 668 | 680 |
|
| 669 | 681 |
/// \brief This iterator goes trough the outgoing arcs of a node. |
| 670 | 682 |
/// |
| 671 | 683 |
/// This iterator goes trough the \e outgoing arcs of a certain node |
| 672 | 684 |
/// of a digraph. |
| 673 | 685 |
typedef GraphIncIt<Digraph, Arc, Node, 'o'> OutArcIt; |
| 674 | 686 |
|
| 675 | 687 |
/// \brief The base node of the iterator. |
| 676 | 688 |
/// |
| 677 |
/// Gives back the base node of the iterator. |
|
| 678 |
/// It is always the target of the pointed arc. |
|
| 689 |
/// This function gives back the base node of the iterator. |
|
| 690 |
/// It is always the target node of the pointed arc. |
|
| 679 | 691 |
Node baseNode(const InArcIt&) const { return INVALID; }
|
| 680 | 692 |
|
| 681 | 693 |
/// \brief The running node of the iterator. |
| 682 | 694 |
/// |
| 683 |
/// Gives back the running node of the iterator. |
|
| 684 |
/// It is always the source of the pointed arc. |
|
| 695 |
/// This function gives back the running node of the iterator. |
|
| 696 |
/// It is always the source node of the pointed arc. |
|
| 685 | 697 |
Node runningNode(const InArcIt&) const { return INVALID; }
|
| 686 | 698 |
|
| 687 | 699 |
/// \brief The base node of the iterator. |
| 688 | 700 |
/// |
| 689 |
/// Gives back the base node of the iterator. |
|
| 690 |
/// It is always the source of the pointed arc. |
|
| 701 |
/// This function gives back the base node of the iterator. |
|
| 702 |
/// It is always the source node of the pointed arc. |
|
| 691 | 703 |
Node baseNode(const OutArcIt&) const { return INVALID; }
|
| 692 | 704 |
|
| 693 | 705 |
/// \brief The running node of the iterator. |
| 694 | 706 |
/// |
| 695 |
/// Gives back the running node of the iterator. |
|
| 696 |
/// It is always the target of the pointed arc. |
|
| 707 |
/// This function gives back the running node of the iterator. |
|
| 708 |
/// It is always the target node of the pointed arc. |
|
| 697 | 709 |
Node runningNode(const OutArcIt&) const { return INVALID; }
|
| 698 | 710 |
|
| 699 | 711 |
/// @} |
| 700 | 712 |
|
| 701 | 713 |
template <typename _Digraph> |
| 702 | 714 |
struct Constraints {
|
| 703 | 715 |
void constraints() {
|
| 704 | 716 |
checkConcept<Base, _Digraph>(); |
| 705 | 717 |
|
| 706 | 718 |
{
|
| 707 | 719 |
typename _Digraph::Node node(INVALID); |
| 708 | 720 |
typename _Digraph::Arc arc(INVALID); |
| 709 | 721 |
{
|
| 710 | 722 |
digraph.first(node); |
| 711 | 723 |
digraph.next(node); |
| 712 | 724 |
} |
| 713 | 725 |
{
|
| 714 | 726 |
digraph.first(arc); |
| 715 | 727 |
digraph.next(arc); |
| 716 | 728 |
} |
| 717 | 729 |
{
|
| 718 | 730 |
digraph.firstIn(arc, node); |
| 719 | 731 |
digraph.nextIn(arc); |
| 720 | 732 |
} |
| 721 | 733 |
{
|
| 722 | 734 |
digraph.firstOut(arc, node); |
| 723 | 735 |
digraph.nextOut(arc); |
| 724 | 736 |
} |
| 725 | 737 |
} |
| 726 | 738 |
|
| 727 | 739 |
{
|
| 728 | 740 |
checkConcept<GraphItemIt<_Digraph, typename _Digraph::Arc>, |
| 729 | 741 |
typename _Digraph::ArcIt >(); |
| 730 | 742 |
checkConcept<GraphItemIt<_Digraph, typename _Digraph::Node>, |
| 731 | 743 |
typename _Digraph::NodeIt >(); |
| 732 | 744 |
checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
| 733 | 745 |
typename _Digraph::Node, 'i'>, typename _Digraph::InArcIt>(); |
| 734 | 746 |
checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
| 735 | 747 |
typename _Digraph::Node, 'o'>, typename _Digraph::OutArcIt>(); |
| 736 | 748 |
|
| 737 | 749 |
typename _Digraph::Node n; |
| 738 |
typename _Digraph::InArcIt ieit(INVALID); |
|
| 739 |
typename _Digraph::OutArcIt oeit(INVALID); |
|
| 740 |
n = digraph.baseNode(ieit); |
|
| 741 |
n = digraph.runningNode(ieit); |
|
| 742 |
n = digraph.baseNode(oeit); |
|
| 743 |
n = digraph.runningNode(oeit); |
|
| 750 |
const typename _Digraph::InArcIt iait(INVALID); |
|
| 751 |
const typename _Digraph::OutArcIt oait(INVALID); |
|
| 752 |
n = digraph.baseNode(iait); |
|
| 753 |
n = digraph.runningNode(iait); |
|
| 754 |
n = digraph.baseNode(oait); |
|
| 755 |
n = digraph.runningNode(oait); |
|
| 744 | 756 |
ignore_unused_variable_warning(n); |
| 745 | 757 |
} |
| 746 | 758 |
} |
| 747 | 759 |
|
| 748 | 760 |
const _Digraph& digraph; |
| 749 |
|
|
| 750 | 761 |
}; |
| 751 | 762 |
}; |
| 752 | 763 |
|
| 753 |
/// \brief |
|
| 764 |
/// \brief Skeleton class for iterable undirected graphs. |
|
| 754 | 765 |
/// |
| 755 |
/// This class provides beside the core graph features iterator |
|
| 756 |
/// based iterable interface for the undirected graph structure. |
|
| 766 |
/// This class describes the interface of iterable undirected |
|
| 767 |
/// graphs. It extends \ref IterableDigraphComponent with the core |
|
| 768 |
/// iterable interface of undirected graphs. |
|
| 757 | 769 |
/// This concept is part of the Graph concept. |
| 758 | 770 |
template <typename BAS = BaseGraphComponent> |
| 759 | 771 |
class IterableGraphComponent : public IterableDigraphComponent<BAS> {
|
| 760 | 772 |
public: |
| 761 | 773 |
|
| 762 | 774 |
typedef BAS Base; |
| 763 | 775 |
typedef typename Base::Node Node; |
| 764 | 776 |
typedef typename Base::Arc Arc; |
| 765 | 777 |
typedef typename Base::Edge Edge; |
| 766 | 778 |
|
| 767 | 779 |
|
| 768 | 780 |
typedef IterableGraphComponent Graph; |
| 769 | 781 |
|
| 770 |
/// \name Base |
|
| 782 |
/// \name Base Iteration |
|
| 771 | 783 |
/// |
| 772 |
/// This interface provides functions for iteration on |
|
| 784 |
/// This interface provides functions for iteration on edges. |
|
| 785 |
/// |
|
| 773 | 786 |
/// @{
|
| 774 | 787 |
|
| 775 | 788 |
using IterableDigraphComponent<Base>::first; |
| 776 | 789 |
using IterableDigraphComponent<Base>::next; |
| 777 | 790 |
|
| 778 |
/// \brief Gives back the first edge in the iterating |
|
| 779 |
/// order. |
|
| 791 |
/// \brief Return the first edge. |
|
| 780 | 792 |
/// |
| 781 |
/// Gives back the first edge in the iterating order. |
|
| 782 |
/// |
|
| 793 |
/// This function gives back the first edge in the iteration order. |
|
| 783 | 794 |
void first(Edge&) const {}
|
| 784 | 795 |
|
| 785 |
/// \brief Gives back the next edge in the iterating |
|
| 786 |
/// order. |
|
| 796 |
/// \brief Return the next edge. |
|
| 787 | 797 |
/// |
| 788 |
/// Gives back the next edge in the iterating order. |
|
| 789 |
/// |
|
| 798 |
/// This function gives back the next edge in the iteration order. |
|
| 790 | 799 |
void next(Edge&) const {}
|
| 791 | 800 |
|
| 792 |
|
|
| 793 |
/// \brief Gives back the first of the edges from the |
|
| 801 |
/// \brief Return the first edge incident to the given node. |
|
| 802 |
/// |
|
| 803 |
/// This function gives back the first edge incident to the given |
|
| 804 |
/// node. The bool parameter gives back the direction for which the |
|
| 805 |
/// source node of the directed arc representing the edge is the |
|
| 794 | 806 |
/// given node. |
| 795 |
/// |
|
| 796 |
/// Gives back the first of the edges from the given |
|
| 797 |
/// node. The bool parameter gives back that direction which |
|
| 798 |
/// gives a good direction of the edge so the source of the |
|
| 799 |
/// directed arc is the given node. |
|
| 800 | 807 |
void firstInc(Edge&, bool&, const Node&) const {}
|
| 801 | 808 |
|
| 802 | 809 |
/// \brief Gives back the next of the edges from the |
| 803 | 810 |
/// given node. |
| 804 | 811 |
/// |
| 805 |
/// Gives back the next of the edges from the given |
|
| 806 |
/// node. The bool parameter should be used as the \c firstInc() |
|
| 807 |
/// |
|
| 812 |
/// This function gives back the next edge incident to the given |
|
| 813 |
/// node. The bool parameter should be used as \c firstInc() use it. |
|
| 808 | 814 |
void nextInc(Edge&, bool&) const {}
|
| 809 | 815 |
|
| 810 | 816 |
using IterableDigraphComponent<Base>::baseNode; |
| 811 | 817 |
using IterableDigraphComponent<Base>::runningNode; |
| 812 | 818 |
|
| 813 | 819 |
/// @} |
| 814 | 820 |
|
| 815 |
/// \name Class |
|
| 821 |
/// \name Class Based Iteration |
|
| 816 | 822 |
/// |
| 817 |
/// This interface provides |
|
| 823 |
/// This interface provides iterator classes for edges. |
|
| 818 | 824 |
/// |
| 819 | 825 |
/// @{
|
| 820 | 826 |
|
| 821 |
/// \brief This iterator goes through each |
|
| 827 |
/// \brief This iterator goes through each edge. |
|
| 822 | 828 |
/// |
| 823 |
/// This iterator goes through each |
|
| 829 |
/// This iterator goes through each edge. |
|
| 824 | 830 |
typedef GraphItemIt<Graph, Edge> EdgeIt; |
| 825 |
|
|
| 831 |
|
|
| 832 |
/// \brief This iterator goes trough the incident edges of a |
|
| 826 | 833 |
/// node. |
| 827 | 834 |
/// |
| 828 |
/// This iterator goes trough the incident |
|
| 835 |
/// This iterator goes trough the incident edges of a certain |
|
| 829 | 836 |
/// node of a graph. |
| 830 |
typedef GraphIncIt<Graph, Edge, Node, ' |
|
| 837 |
typedef GraphIncIt<Graph, Edge, Node, 'e'> IncEdgeIt; |
|
| 838 |
|
|
| 831 | 839 |
/// \brief The base node of the iterator. |
| 832 | 840 |
/// |
| 833 |
/// |
|
| 841 |
/// This function gives back the base node of the iterator. |
|
| 834 | 842 |
Node baseNode(const IncEdgeIt&) const { return INVALID; }
|
| 835 | 843 |
|
| 836 | 844 |
/// \brief The running node of the iterator. |
| 837 | 845 |
/// |
| 838 |
/// |
|
| 846 |
/// This function gives back the running node of the iterator. |
|
| 839 | 847 |
Node runningNode(const IncEdgeIt&) const { return INVALID; }
|
| 840 | 848 |
|
| 841 | 849 |
/// @} |
| 842 | 850 |
|
| 843 | 851 |
template <typename _Graph> |
| 844 | 852 |
struct Constraints {
|
| 845 | 853 |
void constraints() {
|
| 846 | 854 |
checkConcept<IterableDigraphComponent<Base>, _Graph>(); |
| 847 | 855 |
|
| 848 | 856 |
{
|
| 849 | 857 |
typename _Graph::Node node(INVALID); |
| 850 | 858 |
typename _Graph::Edge edge(INVALID); |
| 851 | 859 |
bool dir; |
| 852 | 860 |
{
|
| 853 | 861 |
graph.first(edge); |
| 854 | 862 |
graph.next(edge); |
| 855 | 863 |
} |
| 856 | 864 |
{
|
| 857 | 865 |
graph.firstInc(edge, dir, node); |
| 858 | 866 |
graph.nextInc(edge, dir); |
| 859 | 867 |
} |
| 860 | 868 |
|
| 861 | 869 |
} |
| 862 | 870 |
|
| 863 | 871 |
{
|
| 864 | 872 |
checkConcept<GraphItemIt<_Graph, typename _Graph::Edge>, |
| 865 | 873 |
typename _Graph::EdgeIt >(); |
| 866 | 874 |
checkConcept<GraphIncIt<_Graph, typename _Graph::Edge, |
| 867 |
typename _Graph::Node, ' |
|
| 875 |
typename _Graph::Node, 'e'>, typename _Graph::IncEdgeIt>(); |
|
| 868 | 876 |
|
| 869 | 877 |
typename _Graph::Node n; |
| 870 |
typename _Graph::IncEdgeIt ueit(INVALID); |
|
| 871 |
n = graph.baseNode(ueit); |
|
| 872 |
|
|
| 878 |
const typename _Graph::IncEdgeIt ieit(INVALID); |
|
| 879 |
n = graph.baseNode(ieit); |
|
| 880 |
n = graph.runningNode(ieit); |
|
| 873 | 881 |
} |
| 874 | 882 |
} |
| 875 | 883 |
|
| 876 | 884 |
const _Graph& graph; |
| 877 | 885 |
}; |
| 878 | 886 |
}; |
| 879 | 887 |
|
| 880 |
/// \brief |
|
| 888 |
/// \brief Skeleton class for alterable directed graphs. |
|
| 881 | 889 |
/// |
| 882 |
/// This class provides beside the core digraph features alteration |
|
| 883 |
/// notifier interface for the digraph structure. This implements |
|
| 890 |
/// This class describes the interface of alterable directed |
|
| 891 |
/// graphs. It extends \ref BaseDigraphComponent with the alteration |
|
| 892 |
/// notifier interface. It implements |
|
| 884 | 893 |
/// an observer-notifier pattern for each digraph item. More |
| 885 | 894 |
/// obsevers can be registered into the notifier and whenever an |
| 886 |
/// alteration occured in the digraph all the observers will |
|
| 895 |
/// alteration occured in the digraph all the observers will be |
|
| 887 | 896 |
/// notified about it. |
| 888 | 897 |
template <typename BAS = BaseDigraphComponent> |
| 889 | 898 |
class AlterableDigraphComponent : public BAS {
|
| 890 | 899 |
public: |
| 891 | 900 |
|
| 892 | 901 |
typedef BAS Base; |
| 893 | 902 |
typedef typename Base::Node Node; |
| 894 | 903 |
typedef typename Base::Arc Arc; |
| 895 | 904 |
|
| 896 | 905 |
|
| 897 |
/// |
|
| 906 |
/// Node alteration notifier class. |
|
| 898 | 907 |
typedef AlterationNotifier<AlterableDigraphComponent, Node> |
| 899 | 908 |
NodeNotifier; |
| 900 |
/// |
|
| 909 |
/// Arc alteration notifier class. |
|
| 901 | 910 |
typedef AlterationNotifier<AlterableDigraphComponent, Arc> |
| 902 | 911 |
ArcNotifier; |
| 903 | 912 |
|
| 904 |
/// \brief |
|
| 913 |
/// \brief Return the node alteration notifier. |
|
| 905 | 914 |
/// |
| 906 |
/// |
|
| 915 |
/// This function gives back the node alteration notifier. |
|
| 907 | 916 |
NodeNotifier& notifier(Node) const {
|
| 908 |
return NodeNotifier(); |
|
| 917 |
return NodeNotifier(); |
|
| 909 | 918 |
} |
| 910 | 919 |
|
| 911 |
/// \brief |
|
| 920 |
/// \brief Return the arc alteration notifier. |
|
| 912 | 921 |
/// |
| 913 |
/// |
|
| 922 |
/// This function gives back the arc alteration notifier. |
|
| 914 | 923 |
ArcNotifier& notifier(Arc) const {
|
| 915 | 924 |
return ArcNotifier(); |
| 916 | 925 |
} |
| 917 | 926 |
|
| 918 | 927 |
template <typename _Digraph> |
| 919 | 928 |
struct Constraints {
|
| 920 | 929 |
void constraints() {
|
| 921 | 930 |
checkConcept<Base, _Digraph>(); |
| 922 | 931 |
typename _Digraph::NodeNotifier& nn |
| 923 | 932 |
= digraph.notifier(typename _Digraph::Node()); |
| 924 | 933 |
|
| 925 | 934 |
typename _Digraph::ArcNotifier& en |
| 926 | 935 |
= digraph.notifier(typename _Digraph::Arc()); |
| 927 | 936 |
|
| 928 | 937 |
ignore_unused_variable_warning(nn); |
| 929 | 938 |
ignore_unused_variable_warning(en); |
| 930 | 939 |
} |
| 931 | 940 |
|
| 932 | 941 |
const _Digraph& digraph; |
| 933 |
|
|
| 934 | 942 |
}; |
| 935 |
|
|
| 936 | 943 |
}; |
| 937 | 944 |
|
| 938 |
/// \brief |
|
| 945 |
/// \brief Skeleton class for alterable undirected graphs. |
|
| 939 | 946 |
/// |
| 940 |
/// This class provides beside the core graph features alteration |
|
| 941 |
/// notifier interface for the graph structure. This implements |
|
| 942 |
/// |
|
| 947 |
/// This class describes the interface of alterable undirected |
|
| 948 |
/// graphs. It extends \ref AlterableDigraphComponent with the alteration |
|
| 949 |
/// notifier interface of undirected graphs. It implements |
|
| 950 |
/// an observer-notifier pattern for the edges. More |
|
| 943 | 951 |
/// obsevers can be registered into the notifier and whenever an |
| 944 |
/// alteration occured in the graph all the observers will |
|
| 952 |
/// alteration occured in the graph all the observers will be |
|
| 945 | 953 |
/// notified about it. |
| 946 | 954 |
template <typename BAS = BaseGraphComponent> |
| 947 | 955 |
class AlterableGraphComponent : public AlterableDigraphComponent<BAS> {
|
| 948 | 956 |
public: |
| 949 | 957 |
|
| 950 | 958 |
typedef BAS Base; |
| 951 | 959 |
typedef typename Base::Edge Edge; |
| 952 | 960 |
|
| 953 | 961 |
|
| 954 |
/// |
|
| 962 |
/// Edge alteration notifier class. |
|
| 955 | 963 |
typedef AlterationNotifier<AlterableGraphComponent, Edge> |
| 956 | 964 |
EdgeNotifier; |
| 957 | 965 |
|
| 958 |
/// \brief |
|
| 966 |
/// \brief Return the edge alteration notifier. |
|
| 959 | 967 |
/// |
| 960 |
/// |
|
| 968 |
/// This function gives back the edge alteration notifier. |
|
| 961 | 969 |
EdgeNotifier& notifier(Edge) const {
|
| 962 | 970 |
return EdgeNotifier(); |
| 963 | 971 |
} |
| 964 | 972 |
|
| 965 | 973 |
template <typename _Graph> |
| 966 | 974 |
struct Constraints {
|
| 967 | 975 |
void constraints() {
|
| 968 |
checkConcept< |
|
| 976 |
checkConcept<AlterableDigraphComponent<Base>, _Graph>(); |
|
| 969 | 977 |
typename _Graph::EdgeNotifier& uen |
| 970 | 978 |
= graph.notifier(typename _Graph::Edge()); |
| 971 | 979 |
ignore_unused_variable_warning(uen); |
| 972 | 980 |
} |
| 973 | 981 |
|
| 974 | 982 |
const _Graph& graph; |
| 975 | 983 |
}; |
| 976 | 984 |
}; |
| 977 | 985 |
|
| 978 |
/// \brief |
|
| 986 |
/// \brief Concept class for standard graph maps. |
|
| 979 | 987 |
/// |
| 980 |
/// This class describes the common interface of the graph maps |
|
| 981 |
/// (NodeMap, ArcMap), that is maps that can be used to |
|
| 982 |
/// |
|
| 988 |
/// This class describes the concept of standard graph maps, i.e. |
|
| 989 |
/// the \c NodeMap, \c ArcMap and \c EdgeMap subtypes of digraph and |
|
| 990 |
/// graph types, which can be used for associating data to graph items. |
|
| 991 |
/// The standard graph maps must conform to the ReferenceMap concept. |
|
| 983 | 992 |
template <typename GR, typename K, typename V> |
| 984 |
class GraphMap : public |
|
| 993 |
class GraphMap : public ReferenceMap<K, V, V&, const V&> {
|
|
| 985 | 994 |
public: |
| 986 | 995 |
|
| 987 | 996 |
typedef ReadWriteMap<K, V> Parent; |
| 988 | 997 |
|
| 989 | 998 |
/// The graph type of the map. |
| 990 | 999 |
typedef GR Graph; |
| 991 | 1000 |
/// The key type of the map. |
| 992 | 1001 |
typedef K Key; |
| 993 | 1002 |
/// The value type of the map. |
| 994 | 1003 |
typedef V Value; |
| 1004 |
/// The reference type of the map. |
|
| 1005 |
typedef Value& Reference; |
|
| 1006 |
/// The const reference type of the map. |
|
| 1007 |
typedef const Value& ConstReference; |
|
| 1008 |
|
|
| 1009 |
// The reference map tag. |
|
| 1010 |
typedef True ReferenceMapTag; |
|
| 995 | 1011 |
|
| 996 | 1012 |
/// \brief Construct a new map. |
| 997 | 1013 |
/// |
| 998 | 1014 |
/// Construct a new map for the graph. |
| 999 | 1015 |
explicit GraphMap(const Graph&) {}
|
| 1000 | 1016 |
/// \brief Construct a new map with default value. |
| 1001 | 1017 |
/// |
| 1002 |
/// Construct a new map for the graph and |
|
| 1018 |
/// Construct a new map for the graph and initalize the values. |
|
| 1003 | 1019 |
GraphMap(const Graph&, const Value&) {}
|
| 1004 | 1020 |
|
| 1005 | 1021 |
private: |
| 1006 | 1022 |
/// \brief Copy constructor. |
| 1007 | 1023 |
/// |
| 1008 | 1024 |
/// Copy Constructor. |
| 1009 | 1025 |
GraphMap(const GraphMap&) : Parent() {}
|
| 1010 | 1026 |
|
| 1011 |
/// \brief |
|
| 1027 |
/// \brief Assignment operator. |
|
| 1012 | 1028 |
/// |
| 1013 |
/// |
|
| 1029 |
/// Assignment operator. It does not mofify the underlying graph, |
|
| 1014 | 1030 |
/// it just iterates on the current item set and set the map |
| 1015 | 1031 |
/// with the value returned by the assigned map. |
| 1016 | 1032 |
template <typename CMap> |
| 1017 | 1033 |
GraphMap& operator=(const CMap&) {
|
| 1018 | 1034 |
checkConcept<ReadMap<Key, Value>, CMap>(); |
| 1019 | 1035 |
return *this; |
| 1020 | 1036 |
} |
| 1021 | 1037 |
|
| 1022 | 1038 |
public: |
| 1023 | 1039 |
template<typename _Map> |
| 1024 | 1040 |
struct Constraints {
|
| 1025 | 1041 |
void constraints() {
|
| 1026 |
checkConcept<ReadWriteMap<Key, Value>, _Map >(); |
|
| 1027 |
// Construction with a graph parameter |
|
| 1028 |
_Map a(g); |
|
| 1029 |
// Constructor with a graph and a default value parameter |
|
| 1030 |
_Map a2(g,t); |
|
| 1031 |
// Copy constructor. |
|
| 1032 |
|
|
| 1042 |
checkConcept |
|
| 1043 |
<ReferenceMap<Key, Value, Value&, const Value&>, _Map>(); |
|
| 1044 |
_Map m1(g); |
|
| 1045 |
_Map m2(g,t); |
|
| 1046 |
|
|
| 1047 |
// Copy constructor |
|
| 1048 |
// _Map m3(m); |
|
| 1033 | 1049 |
|
| 1050 |
// Assignment operator |
|
| 1034 | 1051 |
// ReadMap<Key, Value> cmap; |
| 1035 |
// |
|
| 1052 |
// m3 = cmap; |
|
| 1036 | 1053 |
|
| 1037 |
ignore_unused_variable_warning(a); |
|
| 1038 |
ignore_unused_variable_warning(a2); |
|
| 1039 |
|
|
| 1054 |
ignore_unused_variable_warning(m1); |
|
| 1055 |
ignore_unused_variable_warning(m2); |
|
| 1056 |
// ignore_unused_variable_warning(m3); |
|
| 1040 | 1057 |
} |
| 1041 | 1058 |
|
| 1042 |
const _Map & |
|
| 1059 |
const _Map &m; |
|
| 1043 | 1060 |
const Graph &g; |
| 1044 | 1061 |
const typename GraphMap::Value &t; |
| 1045 | 1062 |
}; |
| 1046 | 1063 |
|
| 1047 | 1064 |
}; |
| 1048 | 1065 |
|
| 1049 |
/// \brief |
|
| 1066 |
/// \brief Skeleton class for mappable directed graphs. |
|
| 1050 | 1067 |
/// |
| 1051 |
/// This class provides beside the core digraph features |
|
| 1052 |
/// map interface for the digraph structure. |
|
| 1068 |
/// This class describes the interface of mappable directed graphs. |
|
| 1069 |
/// It extends \ref BaseDigraphComponent with the standard digraph |
|
| 1070 |
/// map classes, namely \c NodeMap and \c ArcMap. |
|
| 1053 | 1071 |
/// This concept is part of the Digraph concept. |
| 1054 | 1072 |
template <typename BAS = BaseDigraphComponent> |
| 1055 | 1073 |
class MappableDigraphComponent : public BAS {
|
| 1056 | 1074 |
public: |
| 1057 | 1075 |
|
| 1058 | 1076 |
typedef BAS Base; |
| 1059 | 1077 |
typedef typename Base::Node Node; |
| 1060 | 1078 |
typedef typename Base::Arc Arc; |
| 1061 | 1079 |
|
| 1062 | 1080 |
typedef MappableDigraphComponent Digraph; |
| 1063 | 1081 |
|
| 1064 |
/// \brief |
|
| 1082 |
/// \brief Standard graph map for the nodes. |
|
| 1065 | 1083 |
/// |
| 1066 |
/// ReadWrite map of the nodes. |
|
| 1067 |
/// |
|
| 1084 |
/// Standard graph map for the nodes. |
|
| 1085 |
/// It conforms to the ReferenceMap concept. |
|
| 1068 | 1086 |
template <typename V> |
| 1069 |
class NodeMap : public GraphMap< |
|
| 1087 |
class NodeMap : public GraphMap<MappableDigraphComponent, Node, V> {
|
|
| 1070 | 1088 |
public: |
| 1071 | 1089 |
typedef GraphMap<MappableDigraphComponent, Node, V> Parent; |
| 1072 | 1090 |
|
| 1073 | 1091 |
/// \brief Construct a new map. |
| 1074 | 1092 |
/// |
| 1075 | 1093 |
/// Construct a new map for the digraph. |
| 1076 | 1094 |
explicit NodeMap(const MappableDigraphComponent& digraph) |
| 1077 | 1095 |
: Parent(digraph) {}
|
| 1078 | 1096 |
|
| 1079 | 1097 |
/// \brief Construct a new map with default value. |
| 1080 | 1098 |
/// |
| 1081 |
/// Construct a new map for the digraph and |
|
| 1099 |
/// Construct a new map for the digraph and initalize the values. |
|
| 1082 | 1100 |
NodeMap(const MappableDigraphComponent& digraph, const V& value) |
| 1083 | 1101 |
: Parent(digraph, value) {}
|
| 1084 | 1102 |
|
| 1085 | 1103 |
private: |
| 1086 | 1104 |
/// \brief Copy constructor. |
| 1087 | 1105 |
/// |
| 1088 | 1106 |
/// Copy Constructor. |
| 1089 | 1107 |
NodeMap(const NodeMap& nm) : Parent(nm) {}
|
| 1090 | 1108 |
|
| 1091 |
/// \brief |
|
| 1109 |
/// \brief Assignment operator. |
|
| 1092 | 1110 |
/// |
| 1093 |
/// |
|
| 1111 |
/// Assignment operator. |
|
| 1094 | 1112 |
template <typename CMap> |
| 1095 | 1113 |
NodeMap& operator=(const CMap&) {
|
| 1096 | 1114 |
checkConcept<ReadMap<Node, V>, CMap>(); |
| 1097 | 1115 |
return *this; |
| 1098 | 1116 |
} |
| 1099 | 1117 |
|
| 1100 | 1118 |
}; |
| 1101 | 1119 |
|
| 1102 |
/// \brief |
|
| 1120 |
/// \brief Standard graph map for the arcs. |
|
| 1103 | 1121 |
/// |
| 1104 |
/// ReadWrite map of the arcs. |
|
| 1105 |
/// |
|
| 1122 |
/// Standard graph map for the arcs. |
|
| 1123 |
/// It conforms to the ReferenceMap concept. |
|
| 1106 | 1124 |
template <typename V> |
| 1107 |
class ArcMap : public GraphMap< |
|
| 1125 |
class ArcMap : public GraphMap<MappableDigraphComponent, Arc, V> {
|
|
| 1108 | 1126 |
public: |
| 1109 | 1127 |
typedef GraphMap<MappableDigraphComponent, Arc, V> Parent; |
| 1110 | 1128 |
|
| 1111 | 1129 |
/// \brief Construct a new map. |
| 1112 | 1130 |
/// |
| 1113 | 1131 |
/// Construct a new map for the digraph. |
| 1114 | 1132 |
explicit ArcMap(const MappableDigraphComponent& digraph) |
| 1115 | 1133 |
: Parent(digraph) {}
|
| 1116 | 1134 |
|
| 1117 | 1135 |
/// \brief Construct a new map with default value. |
| 1118 | 1136 |
/// |
| 1119 |
/// Construct a new map for the digraph and |
|
| 1137 |
/// Construct a new map for the digraph and initalize the values. |
|
| 1120 | 1138 |
ArcMap(const MappableDigraphComponent& digraph, const V& value) |
| 1121 | 1139 |
: Parent(digraph, value) {}
|
| 1122 | 1140 |
|
| 1123 | 1141 |
private: |
| 1124 | 1142 |
/// \brief Copy constructor. |
| 1125 | 1143 |
/// |
| 1126 | 1144 |
/// Copy Constructor. |
| 1127 | 1145 |
ArcMap(const ArcMap& nm) : Parent(nm) {}
|
| 1128 | 1146 |
|
| 1129 |
/// \brief |
|
| 1147 |
/// \brief Assignment operator. |
|
| 1130 | 1148 |
/// |
| 1131 |
/// |
|
| 1149 |
/// Assignment operator. |
|
| 1132 | 1150 |
template <typename CMap> |
| 1133 | 1151 |
ArcMap& operator=(const CMap&) {
|
| 1134 | 1152 |
checkConcept<ReadMap<Arc, V>, CMap>(); |
| 1135 | 1153 |
return *this; |
| 1136 | 1154 |
} |
| 1137 | 1155 |
|
| 1138 | 1156 |
}; |
| 1139 | 1157 |
|
| 1140 | 1158 |
|
| 1141 | 1159 |
template <typename _Digraph> |
| 1142 | 1160 |
struct Constraints {
|
| 1143 | 1161 |
|
| 1144 | 1162 |
struct Dummy {
|
| 1145 | 1163 |
int value; |
| 1146 | 1164 |
Dummy() : value(0) {}
|
| 1147 | 1165 |
Dummy(int _v) : value(_v) {}
|
| 1148 | 1166 |
}; |
| 1149 | 1167 |
|
| 1150 | 1168 |
void constraints() {
|
| 1151 | 1169 |
checkConcept<Base, _Digraph>(); |
| 1152 | 1170 |
{ // int map test
|
| 1153 | 1171 |
typedef typename _Digraph::template NodeMap<int> IntNodeMap; |
| 1154 | 1172 |
checkConcept<GraphMap<_Digraph, typename _Digraph::Node, int>, |
| 1155 | 1173 |
IntNodeMap >(); |
| ... | ... |
@@ -1157,337 +1175,340 @@ |
| 1157 | 1175 |
typedef typename _Digraph::template NodeMap<bool> BoolNodeMap; |
| 1158 | 1176 |
checkConcept<GraphMap<_Digraph, typename _Digraph::Node, bool>, |
| 1159 | 1177 |
BoolNodeMap >(); |
| 1160 | 1178 |
} { // Dummy map test
|
| 1161 | 1179 |
typedef typename _Digraph::template NodeMap<Dummy> DummyNodeMap; |
| 1162 | 1180 |
checkConcept<GraphMap<_Digraph, typename _Digraph::Node, Dummy>, |
| 1163 | 1181 |
DummyNodeMap >(); |
| 1164 | 1182 |
} |
| 1165 | 1183 |
|
| 1166 | 1184 |
{ // int map test
|
| 1167 | 1185 |
typedef typename _Digraph::template ArcMap<int> IntArcMap; |
| 1168 | 1186 |
checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, int>, |
| 1169 | 1187 |
IntArcMap >(); |
| 1170 | 1188 |
} { // bool map test
|
| 1171 | 1189 |
typedef typename _Digraph::template ArcMap<bool> BoolArcMap; |
| 1172 | 1190 |
checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, bool>, |
| 1173 | 1191 |
BoolArcMap >(); |
| 1174 | 1192 |
} { // Dummy map test
|
| 1175 | 1193 |
typedef typename _Digraph::template ArcMap<Dummy> DummyArcMap; |
| 1176 | 1194 |
checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, Dummy>, |
| 1177 | 1195 |
DummyArcMap >(); |
| 1178 | 1196 |
} |
| 1179 | 1197 |
} |
| 1180 | 1198 |
|
| 1181 |
_Digraph& digraph; |
|
| 1199 |
const _Digraph& digraph; |
|
| 1182 | 1200 |
}; |
| 1183 | 1201 |
}; |
| 1184 | 1202 |
|
| 1185 |
/// \brief |
|
| 1203 |
/// \brief Skeleton class for mappable undirected graphs. |
|
| 1186 | 1204 |
/// |
| 1187 |
/// This class provides beside the core graph features |
|
| 1188 |
/// map interface for the graph structure. |
|
| 1205 |
/// This class describes the interface of mappable undirected graphs. |
|
| 1206 |
/// It extends \ref MappableDigraphComponent with the standard graph |
|
| 1207 |
/// map class for edges (\c EdgeMap). |
|
| 1189 | 1208 |
/// This concept is part of the Graph concept. |
| 1190 | 1209 |
template <typename BAS = BaseGraphComponent> |
| 1191 | 1210 |
class MappableGraphComponent : public MappableDigraphComponent<BAS> {
|
| 1192 | 1211 |
public: |
| 1193 | 1212 |
|
| 1194 | 1213 |
typedef BAS Base; |
| 1195 | 1214 |
typedef typename Base::Edge Edge; |
| 1196 | 1215 |
|
| 1197 | 1216 |
typedef MappableGraphComponent Graph; |
| 1198 | 1217 |
|
| 1199 |
/// \brief |
|
| 1218 |
/// \brief Standard graph map for the edges. |
|
| 1200 | 1219 |
/// |
| 1201 |
/// ReadWrite map of the edges. |
|
| 1202 |
/// |
|
| 1220 |
/// Standard graph map for the edges. |
|
| 1221 |
/// It conforms to the ReferenceMap concept. |
|
| 1203 | 1222 |
template <typename V> |
| 1204 |
class EdgeMap : public GraphMap< |
|
| 1223 |
class EdgeMap : public GraphMap<MappableGraphComponent, Edge, V> {
|
|
| 1205 | 1224 |
public: |
| 1206 | 1225 |
typedef GraphMap<MappableGraphComponent, Edge, V> Parent; |
| 1207 | 1226 |
|
| 1208 | 1227 |
/// \brief Construct a new map. |
| 1209 | 1228 |
/// |
| 1210 | 1229 |
/// Construct a new map for the graph. |
| 1211 | 1230 |
explicit EdgeMap(const MappableGraphComponent& graph) |
| 1212 | 1231 |
: Parent(graph) {}
|
| 1213 | 1232 |
|
| 1214 | 1233 |
/// \brief Construct a new map with default value. |
| 1215 | 1234 |
/// |
| 1216 |
/// Construct a new map for the graph and |
|
| 1235 |
/// Construct a new map for the graph and initalize the values. |
|
| 1217 | 1236 |
EdgeMap(const MappableGraphComponent& graph, const V& value) |
| 1218 | 1237 |
: Parent(graph, value) {}
|
| 1219 | 1238 |
|
| 1220 | 1239 |
private: |
| 1221 | 1240 |
/// \brief Copy constructor. |
| 1222 | 1241 |
/// |
| 1223 | 1242 |
/// Copy Constructor. |
| 1224 | 1243 |
EdgeMap(const EdgeMap& nm) : Parent(nm) {}
|
| 1225 | 1244 |
|
| 1226 |
/// \brief |
|
| 1245 |
/// \brief Assignment operator. |
|
| 1227 | 1246 |
/// |
| 1228 |
/// |
|
| 1247 |
/// Assignment operator. |
|
| 1229 | 1248 |
template <typename CMap> |
| 1230 | 1249 |
EdgeMap& operator=(const CMap&) {
|
| 1231 | 1250 |
checkConcept<ReadMap<Edge, V>, CMap>(); |
| 1232 | 1251 |
return *this; |
| 1233 | 1252 |
} |
| 1234 | 1253 |
|
| 1235 | 1254 |
}; |
| 1236 | 1255 |
|
| 1237 | 1256 |
|
| 1238 | 1257 |
template <typename _Graph> |
| 1239 | 1258 |
struct Constraints {
|
| 1240 | 1259 |
|
| 1241 | 1260 |
struct Dummy {
|
| 1242 | 1261 |
int value; |
| 1243 | 1262 |
Dummy() : value(0) {}
|
| 1244 | 1263 |
Dummy(int _v) : value(_v) {}
|
| 1245 | 1264 |
}; |
| 1246 | 1265 |
|
| 1247 | 1266 |
void constraints() {
|
| 1248 |
checkConcept< |
|
| 1267 |
checkConcept<MappableDigraphComponent<Base>, _Graph>(); |
|
| 1249 | 1268 |
|
| 1250 | 1269 |
{ // int map test
|
| 1251 | 1270 |
typedef typename _Graph::template EdgeMap<int> IntEdgeMap; |
| 1252 | 1271 |
checkConcept<GraphMap<_Graph, typename _Graph::Edge, int>, |
| 1253 | 1272 |
IntEdgeMap >(); |
| 1254 | 1273 |
} { // bool map test
|
| 1255 | 1274 |
typedef typename _Graph::template EdgeMap<bool> BoolEdgeMap; |
| 1256 | 1275 |
checkConcept<GraphMap<_Graph, typename _Graph::Edge, bool>, |
| 1257 | 1276 |
BoolEdgeMap >(); |
| 1258 | 1277 |
} { // Dummy map test
|
| 1259 | 1278 |
typedef typename _Graph::template EdgeMap<Dummy> DummyEdgeMap; |
| 1260 | 1279 |
checkConcept<GraphMap<_Graph, typename _Graph::Edge, Dummy>, |
| 1261 | 1280 |
DummyEdgeMap >(); |
| 1262 | 1281 |
} |
| 1263 | 1282 |
} |
| 1264 | 1283 |
|
| 1265 |
_Graph& graph; |
|
| 1284 |
const _Graph& graph; |
|
| 1266 | 1285 |
}; |
| 1267 | 1286 |
}; |
| 1268 | 1287 |
|
| 1269 |
/// \brief |
|
| 1288 |
/// \brief Skeleton class for extendable directed graphs. |
|
| 1270 | 1289 |
/// |
| 1271 |
/// This class provides beside the core digraph features digraph |
|
| 1272 |
/// extendable interface for the digraph structure. The main |
|
| 1273 |
/// difference between the base and this interface is that the |
|
| 1274 |
/// digraph alterations should handled already on this level. |
|
| 1290 |
/// This class describes the interface of extendable directed graphs. |
|
| 1291 |
/// It extends \ref BaseDigraphComponent with functions for adding |
|
| 1292 |
/// nodes and arcs to the digraph. |
|
| 1293 |
/// This concept requires \ref AlterableDigraphComponent. |
|
| 1275 | 1294 |
template <typename BAS = BaseDigraphComponent> |
| 1276 | 1295 |
class ExtendableDigraphComponent : public BAS {
|
| 1277 | 1296 |
public: |
| 1278 | 1297 |
typedef BAS Base; |
| 1279 | 1298 |
|
| 1280 | 1299 |
typedef typename Base::Node Node; |
| 1281 | 1300 |
typedef typename Base::Arc Arc; |
| 1282 | 1301 |
|
| 1283 |
/// \brief |
|
| 1302 |
/// \brief Add a new node to the digraph. |
|
| 1284 | 1303 |
/// |
| 1285 |
/// Adds a new node to the digraph. |
|
| 1286 |
/// |
|
| 1304 |
/// This function adds a new node to the digraph. |
|
| 1287 | 1305 |
Node addNode() {
|
| 1288 | 1306 |
return INVALID; |
| 1289 | 1307 |
} |
| 1290 | 1308 |
|
| 1291 |
/// \brief |
|
| 1309 |
/// \brief Add a new arc connecting the given two nodes. |
|
| 1292 | 1310 |
/// |
| 1293 |
/// |
|
| 1311 |
/// This function adds a new arc connecting the given two nodes |
|
| 1312 |
/// of the digraph. |
|
| 1294 | 1313 |
Arc addArc(const Node&, const Node&) {
|
| 1295 | 1314 |
return INVALID; |
| 1296 | 1315 |
} |
| 1297 | 1316 |
|
| 1298 | 1317 |
template <typename _Digraph> |
| 1299 | 1318 |
struct Constraints {
|
| 1300 | 1319 |
void constraints() {
|
| 1301 | 1320 |
checkConcept<Base, _Digraph>(); |
| 1302 | 1321 |
typename _Digraph::Node node_a, node_b; |
| 1303 | 1322 |
node_a = digraph.addNode(); |
| 1304 | 1323 |
node_b = digraph.addNode(); |
| 1305 | 1324 |
typename _Digraph::Arc arc; |
| 1306 | 1325 |
arc = digraph.addArc(node_a, node_b); |
| 1307 | 1326 |
} |
| 1308 | 1327 |
|
| 1309 | 1328 |
_Digraph& digraph; |
| 1310 | 1329 |
}; |
| 1311 | 1330 |
}; |
| 1312 | 1331 |
|
| 1313 |
/// \brief |
|
| 1332 |
/// \brief Skeleton class for extendable undirected graphs. |
|
| 1314 | 1333 |
/// |
| 1315 |
/// This class provides beside the core undirected graph features |
|
| 1316 |
/// core undircted graph extend interface for the graph structure. |
|
| 1317 |
/// The main difference between the base and this interface is |
|
| 1318 |
/// that the graph alterations should handled already on this |
|
| 1319 |
/// |
|
| 1334 |
/// This class describes the interface of extendable undirected graphs. |
|
| 1335 |
/// It extends \ref BaseGraphComponent with functions for adding |
|
| 1336 |
/// nodes and edges to the graph. |
|
| 1337 |
/// This concept requires \ref AlterableGraphComponent. |
|
| 1320 | 1338 |
template <typename BAS = BaseGraphComponent> |
| 1321 | 1339 |
class ExtendableGraphComponent : public BAS {
|
| 1322 | 1340 |
public: |
| 1323 | 1341 |
|
| 1324 | 1342 |
typedef BAS Base; |
| 1325 | 1343 |
typedef typename Base::Node Node; |
| 1326 | 1344 |
typedef typename Base::Edge Edge; |
| 1327 | 1345 |
|
| 1328 |
/// \brief |
|
| 1346 |
/// \brief Add a new node to the digraph. |
|
| 1329 | 1347 |
/// |
| 1330 |
/// Adds a new node to the graph. |
|
| 1331 |
/// |
|
| 1348 |
/// This function adds a new node to the digraph. |
|
| 1332 | 1349 |
Node addNode() {
|
| 1333 | 1350 |
return INVALID; |
| 1334 | 1351 |
} |
| 1335 | 1352 |
|
| 1336 |
/// \brief |
|
| 1353 |
/// \brief Add a new edge connecting the given two nodes. |
|
| 1337 | 1354 |
/// |
| 1338 |
/// Adds a new arc connects the the given two nodes. |
|
| 1339 |
Edge addArc(const Node&, const Node&) {
|
|
| 1355 |
/// This function adds a new edge connecting the given two nodes |
|
| 1356 |
/// of the graph. |
|
| 1357 |
Edge addEdge(const Node&, const Node&) {
|
|
| 1340 | 1358 |
return INVALID; |
| 1341 | 1359 |
} |
| 1342 | 1360 |
|
| 1343 | 1361 |
template <typename _Graph> |
| 1344 | 1362 |
struct Constraints {
|
| 1345 | 1363 |
void constraints() {
|
| 1346 | 1364 |
checkConcept<Base, _Graph>(); |
| 1347 | 1365 |
typename _Graph::Node node_a, node_b; |
| 1348 | 1366 |
node_a = graph.addNode(); |
| 1349 | 1367 |
node_b = graph.addNode(); |
| 1350 | 1368 |
typename _Graph::Edge edge; |
| 1351 | 1369 |
edge = graph.addEdge(node_a, node_b); |
| 1352 | 1370 |
} |
| 1353 | 1371 |
|
| 1354 | 1372 |
_Graph& graph; |
| 1355 | 1373 |
}; |
| 1356 | 1374 |
}; |
| 1357 | 1375 |
|
| 1358 |
/// \brief |
|
| 1376 |
/// \brief Skeleton class for erasable directed graphs. |
|
| 1359 | 1377 |
/// |
| 1360 |
/// This class provides beside the core digraph features core erase |
|
| 1361 |
/// functions for the digraph structure. The main difference between |
|
| 1362 |
/// the base and this interface is that the digraph alterations |
|
| 1363 |
/// should handled already on this level. |
|
| 1378 |
/// This class describes the interface of erasable directed graphs. |
|
| 1379 |
/// It extends \ref BaseDigraphComponent with functions for removing |
|
| 1380 |
/// nodes and arcs from the digraph. |
|
| 1381 |
/// This concept requires \ref AlterableDigraphComponent. |
|
| 1364 | 1382 |
template <typename BAS = BaseDigraphComponent> |
| 1365 | 1383 |
class ErasableDigraphComponent : public BAS {
|
| 1366 | 1384 |
public: |
| 1367 | 1385 |
|
| 1368 | 1386 |
typedef BAS Base; |
| 1369 | 1387 |
typedef typename Base::Node Node; |
| 1370 | 1388 |
typedef typename Base::Arc Arc; |
| 1371 | 1389 |
|
| 1372 | 1390 |
/// \brief Erase a node from the digraph. |
| 1373 | 1391 |
/// |
| 1374 |
/// Erase a node from the digraph. This function should |
|
| 1375 |
/// erase all arcs connecting to the node. |
|
| 1392 |
/// This function erases the given node from the digraph and all arcs |
|
| 1393 |
/// connected to the node. |
|
| 1376 | 1394 |
void erase(const Node&) {}
|
| 1377 | 1395 |
|
| 1378 | 1396 |
/// \brief Erase an arc from the digraph. |
| 1379 | 1397 |
/// |
| 1380 |
/// Erase an arc from the digraph. |
|
| 1381 |
/// |
|
| 1398 |
/// This function erases the given arc from the digraph. |
|
| 1382 | 1399 |
void erase(const Arc&) {}
|
| 1383 | 1400 |
|
| 1384 | 1401 |
template <typename _Digraph> |
| 1385 | 1402 |
struct Constraints {
|
| 1386 | 1403 |
void constraints() {
|
| 1387 | 1404 |
checkConcept<Base, _Digraph>(); |
| 1388 |
typename _Digraph::Node node; |
|
| 1405 |
const typename _Digraph::Node node(INVALID); |
|
| 1389 | 1406 |
digraph.erase(node); |
| 1390 |
typename _Digraph::Arc arc; |
|
| 1407 |
const typename _Digraph::Arc arc(INVALID); |
|
| 1391 | 1408 |
digraph.erase(arc); |
| 1392 | 1409 |
} |
| 1393 | 1410 |
|
| 1394 | 1411 |
_Digraph& digraph; |
| 1395 | 1412 |
}; |
| 1396 | 1413 |
}; |
| 1397 | 1414 |
|
| 1398 |
/// \brief |
|
| 1415 |
/// \brief Skeleton class for erasable undirected graphs. |
|
| 1399 | 1416 |
/// |
| 1400 |
/// This class provides beside the core undirected graph features |
|
| 1401 |
/// core erase functions for the undirceted graph structure. The |
|
| 1402 |
/// main difference between the base and this interface is that |
|
| 1403 |
/// the graph alterations should handled already on this level. |
|
| 1417 |
/// This class describes the interface of erasable undirected graphs. |
|
| 1418 |
/// It extends \ref BaseGraphComponent with functions for removing |
|
| 1419 |
/// nodes and edges from the graph. |
|
| 1420 |
/// This concept requires \ref AlterableGraphComponent. |
|
| 1404 | 1421 |
template <typename BAS = BaseGraphComponent> |
| 1405 | 1422 |
class ErasableGraphComponent : public BAS {
|
| 1406 | 1423 |
public: |
| 1407 | 1424 |
|
| 1408 | 1425 |
typedef BAS Base; |
| 1409 | 1426 |
typedef typename Base::Node Node; |
| 1410 | 1427 |
typedef typename Base::Edge Edge; |
| 1411 | 1428 |
|
| 1412 | 1429 |
/// \brief Erase a node from the graph. |
| 1413 | 1430 |
/// |
| 1414 |
/// Erase a node from the graph. This function should erase |
|
| 1415 |
/// arcs connecting to the node. |
|
| 1431 |
/// This function erases the given node from the graph and all edges |
|
| 1432 |
/// connected to the node. |
|
| 1416 | 1433 |
void erase(const Node&) {}
|
| 1417 | 1434 |
|
| 1418 |
/// \brief Erase an |
|
| 1435 |
/// \brief Erase an edge from the digraph. |
|
| 1419 | 1436 |
/// |
| 1420 |
/// Erase an arc from the graph. |
|
| 1421 |
/// |
|
| 1437 |
/// This function erases the given edge from the digraph. |
|
| 1422 | 1438 |
void erase(const Edge&) {}
|
| 1423 | 1439 |
|
| 1424 | 1440 |
template <typename _Graph> |
| 1425 | 1441 |
struct Constraints {
|
| 1426 | 1442 |
void constraints() {
|
| 1427 | 1443 |
checkConcept<Base, _Graph>(); |
| 1428 |
typename _Graph::Node node; |
|
| 1444 |
const typename _Graph::Node node(INVALID); |
|
| 1429 | 1445 |
graph.erase(node); |
| 1430 |
typename _Graph::Edge edge; |
|
| 1446 |
const typename _Graph::Edge edge(INVALID); |
|
| 1431 | 1447 |
graph.erase(edge); |
| 1432 | 1448 |
} |
| 1433 | 1449 |
|
| 1434 | 1450 |
_Graph& graph; |
| 1435 | 1451 |
}; |
| 1436 | 1452 |
}; |
| 1437 | 1453 |
|
| 1438 |
/// \brief |
|
| 1454 |
/// \brief Skeleton class for clearable directed graphs. |
|
| 1439 | 1455 |
/// |
| 1440 |
/// This class provides beside the core digraph features core clear |
|
| 1441 |
/// functions for the digraph structure. The main difference between |
|
| 1442 |
/// the base and this interface is that the digraph alterations |
|
| 1443 |
/// should handled already on this level. |
|
| 1456 |
/// This class describes the interface of clearable directed graphs. |
|
| 1457 |
/// It extends \ref BaseDigraphComponent with a function for clearing |
|
| 1458 |
/// the digraph. |
|
| 1459 |
/// This concept requires \ref AlterableDigraphComponent. |
|
| 1444 | 1460 |
template <typename BAS = BaseDigraphComponent> |
| 1445 | 1461 |
class ClearableDigraphComponent : public BAS {
|
| 1446 | 1462 |
public: |
| 1447 | 1463 |
|
| 1448 | 1464 |
typedef BAS Base; |
| 1449 | 1465 |
|
| 1450 | 1466 |
/// \brief Erase all nodes and arcs from the digraph. |
| 1451 | 1467 |
/// |
| 1452 |
/// Erase all nodes and arcs from the digraph. |
|
| 1453 |
/// |
|
| 1468 |
/// This function erases all nodes and arcs from the digraph. |
|
| 1454 | 1469 |
void clear() {}
|
| 1455 | 1470 |
|
| 1456 | 1471 |
template <typename _Digraph> |
| 1457 | 1472 |
struct Constraints {
|
| 1458 | 1473 |
void constraints() {
|
| 1459 | 1474 |
checkConcept<Base, _Digraph>(); |
| 1460 | 1475 |
digraph.clear(); |
| 1461 | 1476 |
} |
| 1462 | 1477 |
|
| 1463 |
_Digraph digraph; |
|
| 1478 |
_Digraph& digraph; |
|
| 1464 | 1479 |
}; |
| 1465 | 1480 |
}; |
| 1466 | 1481 |
|
| 1467 |
/// \brief |
|
| 1482 |
/// \brief Skeleton class for clearable undirected graphs. |
|
| 1468 | 1483 |
/// |
| 1469 |
/// This class provides beside the core undirected graph features |
|
| 1470 |
/// core clear functions for the undirected graph structure. The |
|
| 1471 |
/// main difference between the base and this interface is that |
|
| 1472 |
/// the graph alterations should handled already on this level. |
|
| 1484 |
/// This class describes the interface of clearable undirected graphs. |
|
| 1485 |
/// It extends \ref BaseGraphComponent with a function for clearing |
|
| 1486 |
/// the graph. |
|
| 1487 |
/// This concept requires \ref AlterableGraphComponent. |
|
| 1473 | 1488 |
template <typename BAS = BaseGraphComponent> |
| 1474 | 1489 |
class ClearableGraphComponent : public ClearableDigraphComponent<BAS> {
|
| 1475 | 1490 |
public: |
| 1476 | 1491 |
|
| 1477 | 1492 |
typedef BAS Base; |
| 1478 | 1493 |
|
| 1494 |
/// \brief Erase all nodes and edges from the graph. |
|
| 1495 |
/// |
|
| 1496 |
/// This function erases all nodes and edges from the graph. |
|
| 1497 |
void clear() {}
|
|
| 1498 |
|
|
| 1479 | 1499 |
template <typename _Graph> |
| 1480 | 1500 |
struct Constraints {
|
| 1481 | 1501 |
void constraints() {
|
| 1482 |
checkConcept< |
|
| 1502 |
checkConcept<Base, _Graph>(); |
|
| 1503 |
graph.clear(); |
|
| 1483 | 1504 |
} |
| 1484 | 1505 |
|
| 1485 |
_Graph graph; |
|
| 1506 |
_Graph& graph; |
|
| 1486 | 1507 |
}; |
| 1487 | 1508 |
}; |
| 1488 | 1509 |
|
| 1489 | 1510 |
} |
| 1490 | 1511 |
|
| 1491 | 1512 |
} |
| 1492 | 1513 |
|
| 1493 | 1514 |
#endif |
| ... | ... |
@@ -50,51 +50,51 @@ |
| 50 | 50 |
template <typename PR, typename IM, typename Comp = std::less<PR> > |
| 51 | 51 |
#else |
| 52 | 52 |
template <typename PR, typename IM> |
| 53 | 53 |
#endif |
| 54 | 54 |
class Heap {
|
| 55 | 55 |
public: |
| 56 | 56 |
|
| 57 | 57 |
/// Type of the item-int map. |
| 58 | 58 |
typedef IM ItemIntMap; |
| 59 | 59 |
/// Type of the priorities. |
| 60 | 60 |
typedef PR Prio; |
| 61 | 61 |
/// Type of the items stored in the heap. |
| 62 | 62 |
typedef typename ItemIntMap::Key Item; |
| 63 | 63 |
|
| 64 | 64 |
/// \brief Type to represent the states of the items. |
| 65 | 65 |
/// |
| 66 | 66 |
/// Each item has a state associated to it. It can be "in heap", |
| 67 | 67 |
/// "pre heap" or "post heap". The later two are indifferent |
| 68 | 68 |
/// from the point of view of the heap, but may be useful for |
| 69 | 69 |
/// the user. |
| 70 | 70 |
/// |
| 71 | 71 |
/// The item-int map must be initialized in such way that it assigns |
| 72 | 72 |
/// \c PRE_HEAP (<tt>-1</tt>) to any element to be put in the heap. |
| 73 | 73 |
enum State {
|
| 74 |
IN_HEAP = 0, ///< The "in heap" state constant. |
|
| 75 |
PRE_HEAP = -1, ///< The "pre heap" state constant. |
|
| 76 |
|
|
| 74 |
IN_HEAP = 0, ///< = 0. The "in heap" state constant. |
|
| 75 |
PRE_HEAP = -1, ///< = -1. The "pre heap" state constant. |
|
| 76 |
POST_HEAP = -2 ///< = -2. The "post heap" state constant. |
|
| 77 | 77 |
}; |
| 78 | 78 |
|
| 79 | 79 |
/// \brief The constructor. |
| 80 | 80 |
/// |
| 81 | 81 |
/// The constructor. |
| 82 | 82 |
/// \param map A map that assigns \c int values to keys of type |
| 83 | 83 |
/// \c Item. It is used internally by the heap implementations to |
| 84 | 84 |
/// handle the cross references. The assigned value must be |
| 85 | 85 |
/// \c PRE_HEAP (<tt>-1</tt>) for every item. |
| 86 | 86 |
explicit Heap(ItemIntMap &map) {}
|
| 87 | 87 |
|
| 88 | 88 |
/// \brief The number of items stored in the heap. |
| 89 | 89 |
/// |
| 90 | 90 |
/// Returns the number of items stored in the heap. |
| 91 | 91 |
int size() const { return 0; }
|
| 92 | 92 |
|
| 93 | 93 |
/// \brief Checks if the heap is empty. |
| 94 | 94 |
/// |
| 95 | 95 |
/// Returns \c true if the heap is empty. |
| 96 | 96 |
bool empty() const { return false; }
|
| 97 | 97 |
|
| 98 | 98 |
/// \brief Makes the heap empty. |
| 99 | 99 |
/// |
| 100 | 100 |
/// Makes the heap empty. |
| ... | ... |
@@ -11,134 +11,136 @@ |
| 11 | 11 |
* precise terms see the accompanying LICENSE file. |
| 12 | 12 |
* |
| 13 | 13 |
* This software is provided "AS IS" with no warranty of any kind, |
| 14 | 14 |
* express or implied, and with no claim as to its suitability for any |
| 15 | 15 |
* purpose. |
| 16 | 16 |
* |
| 17 | 17 |
*/ |
| 18 | 18 |
|
| 19 | 19 |
#ifndef LEMON_CONNECTIVITY_H |
| 20 | 20 |
#define LEMON_CONNECTIVITY_H |
| 21 | 21 |
|
| 22 | 22 |
#include <lemon/dfs.h> |
| 23 | 23 |
#include <lemon/bfs.h> |
| 24 | 24 |
#include <lemon/core.h> |
| 25 | 25 |
#include <lemon/maps.h> |
| 26 | 26 |
#include <lemon/adaptors.h> |
| 27 | 27 |
|
| 28 | 28 |
#include <lemon/concepts/digraph.h> |
| 29 | 29 |
#include <lemon/concepts/graph.h> |
| 30 | 30 |
#include <lemon/concept_check.h> |
| 31 | 31 |
|
| 32 | 32 |
#include <stack> |
| 33 | 33 |
#include <functional> |
| 34 | 34 |
|
| 35 |
/// \ingroup |
|
| 35 |
/// \ingroup graph_properties |
|
| 36 | 36 |
/// \file |
| 37 | 37 |
/// \brief Connectivity algorithms |
| 38 | 38 |
/// |
| 39 | 39 |
/// Connectivity algorithms |
| 40 | 40 |
|
| 41 | 41 |
namespace lemon {
|
| 42 | 42 |
|
| 43 |
/// \ingroup |
|
| 43 |
/// \ingroup graph_properties |
|
| 44 | 44 |
/// |
| 45 | 45 |
/// \brief Check whether the given undirected graph is connected. |
| 46 | 46 |
/// |
| 47 | 47 |
/// Check whether the given undirected graph is connected. |
| 48 | 48 |
/// \param graph The undirected graph. |
| 49 | 49 |
/// \return \c true when there is path between any two nodes in the graph. |
| 50 | 50 |
/// \note By definition, the empty graph is connected. |
| 51 | 51 |
template <typename Graph> |
| 52 | 52 |
bool connected(const Graph& graph) {
|
| 53 | 53 |
checkConcept<concepts::Graph, Graph>(); |
| 54 | 54 |
typedef typename Graph::NodeIt NodeIt; |
| 55 | 55 |
if (NodeIt(graph) == INVALID) return true; |
| 56 | 56 |
Dfs<Graph> dfs(graph); |
| 57 | 57 |
dfs.run(NodeIt(graph)); |
| 58 | 58 |
for (NodeIt it(graph); it != INVALID; ++it) {
|
| 59 | 59 |
if (!dfs.reached(it)) {
|
| 60 | 60 |
return false; |
| 61 | 61 |
} |
| 62 | 62 |
} |
| 63 | 63 |
return true; |
| 64 | 64 |
} |
| 65 | 65 |
|
| 66 |
/// \ingroup |
|
| 66 |
/// \ingroup graph_properties |
|
| 67 | 67 |
/// |
| 68 | 68 |
/// \brief Count the number of connected components of an undirected graph |
| 69 | 69 |
/// |
| 70 | 70 |
/// Count the number of connected components of an undirected graph |
| 71 | 71 |
/// |
| 72 | 72 |
/// \param graph The graph. It must be undirected. |
| 73 | 73 |
/// \return The number of components |
| 74 | 74 |
/// \note By definition, the empty graph consists |
| 75 | 75 |
/// of zero connected components. |
| 76 | 76 |
template <typename Graph> |
| 77 | 77 |
int countConnectedComponents(const Graph &graph) {
|
| 78 | 78 |
checkConcept<concepts::Graph, Graph>(); |
| 79 | 79 |
typedef typename Graph::Node Node; |
| 80 | 80 |
typedef typename Graph::Arc Arc; |
| 81 | 81 |
|
| 82 | 82 |
typedef NullMap<Node, Arc> PredMap; |
| 83 | 83 |
typedef NullMap<Node, int> DistMap; |
| 84 | 84 |
|
| 85 | 85 |
int compNum = 0; |
| 86 | 86 |
typename Bfs<Graph>:: |
| 87 | 87 |
template SetPredMap<PredMap>:: |
| 88 | 88 |
template SetDistMap<DistMap>:: |
| 89 | 89 |
Create bfs(graph); |
| 90 | 90 |
|
| 91 | 91 |
PredMap predMap; |
| 92 | 92 |
bfs.predMap(predMap); |
| 93 | 93 |
|
| 94 | 94 |
DistMap distMap; |
| 95 | 95 |
bfs.distMap(distMap); |
| 96 | 96 |
|
| 97 | 97 |
bfs.init(); |
| 98 | 98 |
for(typename Graph::NodeIt n(graph); n != INVALID; ++n) {
|
| 99 | 99 |
if (!bfs.reached(n)) {
|
| 100 | 100 |
bfs.addSource(n); |
| 101 | 101 |
bfs.start(); |
| 102 | 102 |
++compNum; |
| 103 | 103 |
} |
| 104 | 104 |
} |
| 105 | 105 |
return compNum; |
| 106 | 106 |
} |
| 107 | 107 |
|
| 108 |
/// \ingroup |
|
| 108 |
/// \ingroup graph_properties |
|
| 109 | 109 |
/// |
| 110 | 110 |
/// \brief Find the connected components of an undirected graph |
| 111 | 111 |
/// |
| 112 | 112 |
/// Find the connected components of an undirected graph. |
| 113 | 113 |
/// |
| 114 |
/// \image html connected_components.png |
|
| 115 |
/// \image latex connected_components.eps "Connected components" width=\textwidth |
|
| 116 |
/// |
|
| 114 | 117 |
/// \param graph The graph. It must be undirected. |
| 115 | 118 |
/// \retval compMap A writable node map. The values will be set from 0 to |
| 116 | 119 |
/// the number of the connected components minus one. Each values of the map |
| 117 | 120 |
/// will be set exactly once, the values of a certain component will be |
| 118 | 121 |
/// set continuously. |
| 119 | 122 |
/// \return The number of components |
| 120 |
/// |
|
| 121 | 123 |
template <class Graph, class NodeMap> |
| 122 | 124 |
int connectedComponents(const Graph &graph, NodeMap &compMap) {
|
| 123 | 125 |
checkConcept<concepts::Graph, Graph>(); |
| 124 | 126 |
typedef typename Graph::Node Node; |
| 125 | 127 |
typedef typename Graph::Arc Arc; |
| 126 | 128 |
checkConcept<concepts::WriteMap<Node, int>, NodeMap>(); |
| 127 | 129 |
|
| 128 | 130 |
typedef NullMap<Node, Arc> PredMap; |
| 129 | 131 |
typedef NullMap<Node, int> DistMap; |
| 130 | 132 |
|
| 131 | 133 |
int compNum = 0; |
| 132 | 134 |
typename Bfs<Graph>:: |
| 133 | 135 |
template SetPredMap<PredMap>:: |
| 134 | 136 |
template SetDistMap<DistMap>:: |
| 135 | 137 |
Create bfs(graph); |
| 136 | 138 |
|
| 137 | 139 |
PredMap predMap; |
| 138 | 140 |
bfs.predMap(predMap); |
| 139 | 141 |
|
| 140 | 142 |
DistMap distMap; |
| 141 | 143 |
bfs.distMap(distMap); |
| 142 | 144 |
|
| 143 | 145 |
bfs.init(); |
| 144 | 146 |
for(typename Graph::NodeIt n(graph); n != INVALID; ++n) {
|
| ... | ... |
@@ -206,49 +208,49 @@ |
| 206 | 208 |
|
| 207 | 209 |
void reach(const Node& node) {
|
| 208 | 210 |
_compMap.set(node, _num); |
| 209 | 211 |
} |
| 210 | 212 |
|
| 211 | 213 |
void examine(const Arc& arc) {
|
| 212 | 214 |
if (_compMap[_digraph.source(arc)] != |
| 213 | 215 |
_compMap[_digraph.target(arc)]) {
|
| 214 | 216 |
_cutMap.set(arc, true); |
| 215 | 217 |
++_cutNum; |
| 216 | 218 |
} |
| 217 | 219 |
} |
| 218 | 220 |
private: |
| 219 | 221 |
const Digraph& _digraph; |
| 220 | 222 |
ArcMap& _cutMap; |
| 221 | 223 |
int& _cutNum; |
| 222 | 224 |
|
| 223 | 225 |
typename Digraph::template NodeMap<int> _compMap; |
| 224 | 226 |
int _num; |
| 225 | 227 |
}; |
| 226 | 228 |
|
| 227 | 229 |
} |
| 228 | 230 |
|
| 229 | 231 |
|
| 230 |
/// \ingroup |
|
| 232 |
/// \ingroup graph_properties |
|
| 231 | 233 |
/// |
| 232 | 234 |
/// \brief Check whether the given directed graph is strongly connected. |
| 233 | 235 |
/// |
| 234 | 236 |
/// Check whether the given directed graph is strongly connected. The |
| 235 | 237 |
/// graph is strongly connected when any two nodes of the graph are |
| 236 | 238 |
/// connected with directed paths in both direction. |
| 237 | 239 |
/// \return \c false when the graph is not strongly connected. |
| 238 | 240 |
/// \see connected |
| 239 | 241 |
/// |
| 240 | 242 |
/// \note By definition, the empty graph is strongly connected. |
| 241 | 243 |
template <typename Digraph> |
| 242 | 244 |
bool stronglyConnected(const Digraph& digraph) {
|
| 243 | 245 |
checkConcept<concepts::Digraph, Digraph>(); |
| 244 | 246 |
|
| 245 | 247 |
typedef typename Digraph::Node Node; |
| 246 | 248 |
typedef typename Digraph::NodeIt NodeIt; |
| 247 | 249 |
|
| 248 | 250 |
typename Digraph::Node source = NodeIt(digraph); |
| 249 | 251 |
if (source == INVALID) return true; |
| 250 | 252 |
|
| 251 | 253 |
using namespace _connectivity_bits; |
| 252 | 254 |
|
| 253 | 255 |
typedef DfsVisitor<Digraph> Visitor; |
| 254 | 256 |
Visitor visitor; |
| ... | ... |
@@ -264,49 +266,49 @@ |
| 264 | 266 |
} |
| 265 | 267 |
} |
| 266 | 268 |
|
| 267 | 269 |
typedef ReverseDigraph<const Digraph> RDigraph; |
| 268 | 270 |
typedef typename RDigraph::NodeIt RNodeIt; |
| 269 | 271 |
RDigraph rdigraph(digraph); |
| 270 | 272 |
|
| 271 | 273 |
typedef DfsVisitor<Digraph> RVisitor; |
| 272 | 274 |
RVisitor rvisitor; |
| 273 | 275 |
|
| 274 | 276 |
DfsVisit<RDigraph, RVisitor> rdfs(rdigraph, rvisitor); |
| 275 | 277 |
rdfs.init(); |
| 276 | 278 |
rdfs.addSource(source); |
| 277 | 279 |
rdfs.start(); |
| 278 | 280 |
|
| 279 | 281 |
for (RNodeIt it(rdigraph); it != INVALID; ++it) {
|
| 280 | 282 |
if (!rdfs.reached(it)) {
|
| 281 | 283 |
return false; |
| 282 | 284 |
} |
| 283 | 285 |
} |
| 284 | 286 |
|
| 285 | 287 |
return true; |
| 286 | 288 |
} |
| 287 | 289 |
|
| 288 |
/// \ingroup |
|
| 290 |
/// \ingroup graph_properties |
|
| 289 | 291 |
/// |
| 290 | 292 |
/// \brief Count the strongly connected components of a directed graph |
| 291 | 293 |
/// |
| 292 | 294 |
/// Count the strongly connected components of a directed graph. |
| 293 | 295 |
/// The strongly connected components are the classes of an |
| 294 | 296 |
/// equivalence relation on the nodes of the graph. Two nodes are in |
| 295 | 297 |
/// the same class if they are connected with directed paths in both |
| 296 | 298 |
/// direction. |
| 297 | 299 |
/// |
| 298 | 300 |
/// \param digraph The graph. |
| 299 | 301 |
/// \return The number of components |
| 300 | 302 |
/// \note By definition, the empty graph has zero |
| 301 | 303 |
/// strongly connected components. |
| 302 | 304 |
template <typename Digraph> |
| 303 | 305 |
int countStronglyConnectedComponents(const Digraph& digraph) {
|
| 304 | 306 |
checkConcept<concepts::Digraph, Digraph>(); |
| 305 | 307 |
|
| 306 | 308 |
using namespace _connectivity_bits; |
| 307 | 309 |
|
| 308 | 310 |
typedef typename Digraph::Node Node; |
| 309 | 311 |
typedef typename Digraph::Arc Arc; |
| 310 | 312 |
typedef typename Digraph::NodeIt NodeIt; |
| 311 | 313 |
typedef typename Digraph::ArcIt ArcIt; |
| 312 | 314 |
|
| ... | ... |
@@ -328,116 +330,118 @@ |
| 328 | 330 |
|
| 329 | 331 |
typedef typename Container::reverse_iterator RIterator; |
| 330 | 332 |
typedef ReverseDigraph<const Digraph> RDigraph; |
| 331 | 333 |
|
| 332 | 334 |
RDigraph rdigraph(digraph); |
| 333 | 335 |
|
| 334 | 336 |
typedef DfsVisitor<Digraph> RVisitor; |
| 335 | 337 |
RVisitor rvisitor; |
| 336 | 338 |
|
| 337 | 339 |
DfsVisit<RDigraph, RVisitor> rdfs(rdigraph, rvisitor); |
| 338 | 340 |
|
| 339 | 341 |
int compNum = 0; |
| 340 | 342 |
|
| 341 | 343 |
rdfs.init(); |
| 342 | 344 |
for (RIterator it = nodes.rbegin(); it != nodes.rend(); ++it) {
|
| 343 | 345 |
if (!rdfs.reached(*it)) {
|
| 344 | 346 |
rdfs.addSource(*it); |
| 345 | 347 |
rdfs.start(); |
| 346 | 348 |
++compNum; |
| 347 | 349 |
} |
| 348 | 350 |
} |
| 349 | 351 |
return compNum; |
| 350 | 352 |
} |
| 351 | 353 |
|
| 352 |
/// \ingroup |
|
| 354 |
/// \ingroup graph_properties |
|
| 353 | 355 |
/// |
| 354 | 356 |
/// \brief Find the strongly connected components of a directed graph |
| 355 | 357 |
/// |
| 356 | 358 |
/// Find the strongly connected components of a directed graph. The |
| 357 | 359 |
/// strongly connected components are the classes of an equivalence |
| 358 | 360 |
/// relation on the nodes of the graph. Two nodes are in |
| 359 | 361 |
/// relationship when there are directed paths between them in both |
| 360 | 362 |
/// direction. In addition, the numbering of components will satisfy |
| 361 | 363 |
/// that there is no arc going from a higher numbered component to |
| 362 | 364 |
/// a lower. |
| 363 | 365 |
/// |
| 366 |
/// \image html strongly_connected_components.png |
|
| 367 |
/// \image latex strongly_connected_components.eps "Strongly connected components" width=\textwidth |
|
| 368 |
/// |
|
| 364 | 369 |
/// \param digraph The digraph. |
| 365 | 370 |
/// \retval compMap A writable node map. The values will be set from 0 to |
| 366 | 371 |
/// the number of the strongly connected components minus one. Each value |
| 367 | 372 |
/// of the map will be set exactly once, the values of a certain component |
| 368 | 373 |
/// will be set continuously. |
| 369 | 374 |
/// \return The number of components |
| 370 |
/// |
|
| 371 | 375 |
template <typename Digraph, typename NodeMap> |
| 372 | 376 |
int stronglyConnectedComponents(const Digraph& digraph, NodeMap& compMap) {
|
| 373 | 377 |
checkConcept<concepts::Digraph, Digraph>(); |
| 374 | 378 |
typedef typename Digraph::Node Node; |
| 375 | 379 |
typedef typename Digraph::NodeIt NodeIt; |
| 376 | 380 |
checkConcept<concepts::WriteMap<Node, int>, NodeMap>(); |
| 377 | 381 |
|
| 378 | 382 |
using namespace _connectivity_bits; |
| 379 | 383 |
|
| 380 | 384 |
typedef std::vector<Node> Container; |
| 381 | 385 |
typedef typename Container::iterator Iterator; |
| 382 | 386 |
|
| 383 | 387 |
Container nodes(countNodes(digraph)); |
| 384 | 388 |
typedef LeaveOrderVisitor<Digraph, Iterator> Visitor; |
| 385 | 389 |
Visitor visitor(nodes.begin()); |
| 386 | 390 |
|
| 387 | 391 |
DfsVisit<Digraph, Visitor> dfs(digraph, visitor); |
| 388 | 392 |
dfs.init(); |
| 389 | 393 |
for (NodeIt it(digraph); it != INVALID; ++it) {
|
| 390 | 394 |
if (!dfs.reached(it)) {
|
| 391 | 395 |
dfs.addSource(it); |
| 392 | 396 |
dfs.start(); |
| 393 | 397 |
} |
| 394 | 398 |
} |
| 395 | 399 |
|
| 396 | 400 |
typedef typename Container::reverse_iterator RIterator; |
| 397 | 401 |
typedef ReverseDigraph<const Digraph> RDigraph; |
| 398 | 402 |
|
| 399 | 403 |
RDigraph rdigraph(digraph); |
| 400 | 404 |
|
| 401 | 405 |
int compNum = 0; |
| 402 | 406 |
|
| 403 | 407 |
typedef FillMapVisitor<RDigraph, NodeMap> RVisitor; |
| 404 | 408 |
RVisitor rvisitor(compMap, compNum); |
| 405 | 409 |
|
| 406 | 410 |
DfsVisit<RDigraph, RVisitor> rdfs(rdigraph, rvisitor); |
| 407 | 411 |
|
| 408 | 412 |
rdfs.init(); |
| 409 | 413 |
for (RIterator it = nodes.rbegin(); it != nodes.rend(); ++it) {
|
| 410 | 414 |
if (!rdfs.reached(*it)) {
|
| 411 | 415 |
rdfs.addSource(*it); |
| 412 | 416 |
rdfs.start(); |
| 413 | 417 |
++compNum; |
| 414 | 418 |
} |
| 415 | 419 |
} |
| 416 | 420 |
return compNum; |
| 417 | 421 |
} |
| 418 | 422 |
|
| 419 |
/// \ingroup |
|
| 423 |
/// \ingroup graph_properties |
|
| 420 | 424 |
/// |
| 421 | 425 |
/// \brief Find the cut arcs of the strongly connected components. |
| 422 | 426 |
/// |
| 423 | 427 |
/// Find the cut arcs of the strongly connected components. |
| 424 | 428 |
/// The strongly connected components are the classes of an equivalence |
| 425 | 429 |
/// relation on the nodes of the graph. Two nodes are in relationship |
| 426 | 430 |
/// when there are directed paths between them in both direction. |
| 427 | 431 |
/// The strongly connected components are separated by the cut arcs. |
| 428 | 432 |
/// |
| 429 | 433 |
/// \param graph The graph. |
| 430 | 434 |
/// \retval cutMap A writable node map. The values will be set true when the |
| 431 | 435 |
/// arc is a cut arc. |
| 432 | 436 |
/// |
| 433 | 437 |
/// \return The number of cut arcs |
| 434 | 438 |
template <typename Digraph, typename ArcMap> |
| 435 | 439 |
int stronglyConnectedCutArcs(const Digraph& graph, ArcMap& cutMap) {
|
| 436 | 440 |
checkConcept<concepts::Digraph, Digraph>(); |
| 437 | 441 |
typedef typename Digraph::Node Node; |
| 438 | 442 |
typedef typename Digraph::Arc Arc; |
| 439 | 443 |
typedef typename Digraph::NodeIt NodeIt; |
| 440 | 444 |
checkConcept<concepts::WriteMap<Arc, bool>, ArcMap>(); |
| 441 | 445 |
|
| 442 | 446 |
using namespace _connectivity_bits; |
| 443 | 447 |
|
| ... | ... |
@@ -679,142 +683,144 @@ |
| 679 | 683 |
} else {
|
| 680 | 684 |
rootCut = true; |
| 681 | 685 |
} |
| 682 | 686 |
} |
| 683 | 687 |
} |
| 684 | 688 |
|
| 685 | 689 |
private: |
| 686 | 690 |
const Digraph& _graph; |
| 687 | 691 |
NodeMap& _cutMap; |
| 688 | 692 |
int& _cutNum; |
| 689 | 693 |
|
| 690 | 694 |
typename Digraph::template NodeMap<int> _numMap; |
| 691 | 695 |
typename Digraph::template NodeMap<int> _retMap; |
| 692 | 696 |
typename Digraph::template NodeMap<Node> _predMap; |
| 693 | 697 |
std::stack<Edge> _edgeStack; |
| 694 | 698 |
int _num; |
| 695 | 699 |
bool rootCut; |
| 696 | 700 |
}; |
| 697 | 701 |
|
| 698 | 702 |
} |
| 699 | 703 |
|
| 700 | 704 |
template <typename Graph> |
| 701 | 705 |
int countBiNodeConnectedComponents(const Graph& graph); |
| 702 | 706 |
|
| 703 |
/// \ingroup |
|
| 707 |
/// \ingroup graph_properties |
|
| 704 | 708 |
/// |
| 705 | 709 |
/// \brief Checks the graph is bi-node-connected. |
| 706 | 710 |
/// |
| 707 | 711 |
/// This function checks that the undirected graph is bi-node-connected |
| 708 | 712 |
/// graph. The graph is bi-node-connected if any two undirected edge is |
| 709 | 713 |
/// on same circle. |
| 710 | 714 |
/// |
| 711 | 715 |
/// \param graph The graph. |
| 712 | 716 |
/// \return \c true when the graph bi-node-connected. |
| 713 | 717 |
template <typename Graph> |
| 714 | 718 |
bool biNodeConnected(const Graph& graph) {
|
| 715 | 719 |
return countBiNodeConnectedComponents(graph) <= 1; |
| 716 | 720 |
} |
| 717 | 721 |
|
| 718 |
/// \ingroup |
|
| 722 |
/// \ingroup graph_properties |
|
| 719 | 723 |
/// |
| 720 | 724 |
/// \brief Count the biconnected components. |
| 721 | 725 |
/// |
| 722 | 726 |
/// This function finds the bi-node-connected components in an undirected |
| 723 | 727 |
/// graph. The biconnected components are the classes of an equivalence |
| 724 | 728 |
/// relation on the undirected edges. Two undirected edge is in relationship |
| 725 | 729 |
/// when they are on same circle. |
| 726 | 730 |
/// |
| 727 | 731 |
/// \param graph The graph. |
| 728 | 732 |
/// \return The number of components. |
| 729 | 733 |
template <typename Graph> |
| 730 | 734 |
int countBiNodeConnectedComponents(const Graph& graph) {
|
| 731 | 735 |
checkConcept<concepts::Graph, Graph>(); |
| 732 | 736 |
typedef typename Graph::NodeIt NodeIt; |
| 733 | 737 |
|
| 734 | 738 |
using namespace _connectivity_bits; |
| 735 | 739 |
|
| 736 | 740 |
typedef CountBiNodeConnectedComponentsVisitor<Graph> Visitor; |
| 737 | 741 |
|
| 738 | 742 |
int compNum = 0; |
| 739 | 743 |
Visitor visitor(graph, compNum); |
| 740 | 744 |
|
| 741 | 745 |
DfsVisit<Graph, Visitor> dfs(graph, visitor); |
| 742 | 746 |
dfs.init(); |
| 743 | 747 |
|
| 744 | 748 |
for (NodeIt it(graph); it != INVALID; ++it) {
|
| 745 | 749 |
if (!dfs.reached(it)) {
|
| 746 | 750 |
dfs.addSource(it); |
| 747 | 751 |
dfs.start(); |
| 748 | 752 |
} |
| 749 | 753 |
} |
| 750 | 754 |
return compNum; |
| 751 | 755 |
} |
| 752 | 756 |
|
| 753 |
/// \ingroup |
|
| 757 |
/// \ingroup graph_properties |
|
| 754 | 758 |
/// |
| 755 | 759 |
/// \brief Find the bi-node-connected components. |
| 756 | 760 |
/// |
| 757 | 761 |
/// This function finds the bi-node-connected components in an undirected |
| 758 | 762 |
/// graph. The bi-node-connected components are the classes of an equivalence |
| 759 | 763 |
/// relation on the undirected edges. Two undirected edge are in relationship |
| 760 | 764 |
/// when they are on same circle. |
| 761 | 765 |
/// |
| 766 |
/// \image html node_biconnected_components.png |
|
| 767 |
/// \image latex node_biconnected_components.eps "bi-node-connected components" width=\textwidth |
|
| 768 |
/// |
|
| 762 | 769 |
/// \param graph The graph. |
| 763 | 770 |
/// \retval compMap A writable uedge map. The values will be set from 0 |
| 764 | 771 |
/// to the number of the biconnected components minus one. Each values |
| 765 | 772 |
/// of the map will be set exactly once, the values of a certain component |
| 766 | 773 |
/// will be set continuously. |
| 767 | 774 |
/// \return The number of components. |
| 768 |
/// |
|
| 769 | 775 |
template <typename Graph, typename EdgeMap> |
| 770 | 776 |
int biNodeConnectedComponents(const Graph& graph, |
| 771 | 777 |
EdgeMap& compMap) {
|
| 772 | 778 |
checkConcept<concepts::Graph, Graph>(); |
| 773 | 779 |
typedef typename Graph::NodeIt NodeIt; |
| 774 | 780 |
typedef typename Graph::Edge Edge; |
| 775 | 781 |
checkConcept<concepts::WriteMap<Edge, int>, EdgeMap>(); |
| 776 | 782 |
|
| 777 | 783 |
using namespace _connectivity_bits; |
| 778 | 784 |
|
| 779 | 785 |
typedef BiNodeConnectedComponentsVisitor<Graph, EdgeMap> Visitor; |
| 780 | 786 |
|
| 781 | 787 |
int compNum = 0; |
| 782 | 788 |
Visitor visitor(graph, compMap, compNum); |
| 783 | 789 |
|
| 784 | 790 |
DfsVisit<Graph, Visitor> dfs(graph, visitor); |
| 785 | 791 |
dfs.init(); |
| 786 | 792 |
|
| 787 | 793 |
for (NodeIt it(graph); it != INVALID; ++it) {
|
| 788 | 794 |
if (!dfs.reached(it)) {
|
| 789 | 795 |
dfs.addSource(it); |
| 790 | 796 |
dfs.start(); |
| 791 | 797 |
} |
| 792 | 798 |
} |
| 793 | 799 |
return compNum; |
| 794 | 800 |
} |
| 795 | 801 |
|
| 796 |
/// \ingroup |
|
| 802 |
/// \ingroup graph_properties |
|
| 797 | 803 |
/// |
| 798 | 804 |
/// \brief Find the bi-node-connected cut nodes. |
| 799 | 805 |
/// |
| 800 | 806 |
/// This function finds the bi-node-connected cut nodes in an undirected |
| 801 | 807 |
/// graph. The bi-node-connected components are the classes of an equivalence |
| 802 | 808 |
/// relation on the undirected edges. Two undirected edges are in |
| 803 | 809 |
/// relationship when they are on same circle. The biconnected components |
| 804 | 810 |
/// are separted by nodes which are the cut nodes of the components. |
| 805 | 811 |
/// |
| 806 | 812 |
/// \param graph The graph. |
| 807 | 813 |
/// \retval cutMap A writable edge map. The values will be set true when |
| 808 | 814 |
/// the node separate two or more components. |
| 809 | 815 |
/// \return The number of the cut nodes. |
| 810 | 816 |
template <typename Graph, typename NodeMap> |
| 811 | 817 |
int biNodeConnectedCutNodes(const Graph& graph, NodeMap& cutMap) {
|
| 812 | 818 |
checkConcept<concepts::Graph, Graph>(); |
| 813 | 819 |
typedef typename Graph::Node Node; |
| 814 | 820 |
typedef typename Graph::NodeIt NodeIt; |
| 815 | 821 |
checkConcept<concepts::WriteMap<Node, bool>, NodeMap>(); |
| 816 | 822 |
|
| 817 | 823 |
using namespace _connectivity_bits; |
| 818 | 824 |
|
| 819 | 825 |
typedef BiNodeConnectedCutNodesVisitor<Graph, NodeMap> Visitor; |
| 820 | 826 |
|
| ... | ... |
@@ -1002,141 +1008,143 @@ |
| 1002 | 1008 |
} |
| 1003 | 1009 |
} |
| 1004 | 1010 |
|
| 1005 | 1011 |
void backtrack(const Arc& edge) {
|
| 1006 | 1012 |
if (_retMap[_graph.source(edge)] > _retMap[_graph.target(edge)]) {
|
| 1007 | 1013 |
_retMap.set(_graph.source(edge), _retMap[_graph.target(edge)]); |
| 1008 | 1014 |
} |
| 1009 | 1015 |
} |
| 1010 | 1016 |
|
| 1011 | 1017 |
private: |
| 1012 | 1018 |
const Digraph& _graph; |
| 1013 | 1019 |
ArcMap& _cutMap; |
| 1014 | 1020 |
int& _cutNum; |
| 1015 | 1021 |
|
| 1016 | 1022 |
typename Digraph::template NodeMap<int> _numMap; |
| 1017 | 1023 |
typename Digraph::template NodeMap<int> _retMap; |
| 1018 | 1024 |
typename Digraph::template NodeMap<Arc> _predMap; |
| 1019 | 1025 |
int _num; |
| 1020 | 1026 |
}; |
| 1021 | 1027 |
} |
| 1022 | 1028 |
|
| 1023 | 1029 |
template <typename Graph> |
| 1024 | 1030 |
int countBiEdgeConnectedComponents(const Graph& graph); |
| 1025 | 1031 |
|
| 1026 |
/// \ingroup |
|
| 1032 |
/// \ingroup graph_properties |
|
| 1027 | 1033 |
/// |
| 1028 | 1034 |
/// \brief Checks that the graph is bi-edge-connected. |
| 1029 | 1035 |
/// |
| 1030 | 1036 |
/// This function checks that the graph is bi-edge-connected. The undirected |
| 1031 | 1037 |
/// graph is bi-edge-connected when any two nodes are connected with two |
| 1032 | 1038 |
/// edge-disjoint paths. |
| 1033 | 1039 |
/// |
| 1034 | 1040 |
/// \param graph The undirected graph. |
| 1035 | 1041 |
/// \return The number of components. |
| 1036 | 1042 |
template <typename Graph> |
| 1037 | 1043 |
bool biEdgeConnected(const Graph& graph) {
|
| 1038 | 1044 |
return countBiEdgeConnectedComponents(graph) <= 1; |
| 1039 | 1045 |
} |
| 1040 | 1046 |
|
| 1041 |
/// \ingroup |
|
| 1047 |
/// \ingroup graph_properties |
|
| 1042 | 1048 |
/// |
| 1043 | 1049 |
/// \brief Count the bi-edge-connected components. |
| 1044 | 1050 |
/// |
| 1045 | 1051 |
/// This function count the bi-edge-connected components in an undirected |
| 1046 | 1052 |
/// graph. The bi-edge-connected components are the classes of an equivalence |
| 1047 | 1053 |
/// relation on the nodes. Two nodes are in relationship when they are |
| 1048 | 1054 |
/// connected with at least two edge-disjoint paths. |
| 1049 | 1055 |
/// |
| 1050 | 1056 |
/// \param graph The undirected graph. |
| 1051 | 1057 |
/// \return The number of components. |
| 1052 | 1058 |
template <typename Graph> |
| 1053 | 1059 |
int countBiEdgeConnectedComponents(const Graph& graph) {
|
| 1054 | 1060 |
checkConcept<concepts::Graph, Graph>(); |
| 1055 | 1061 |
typedef typename Graph::NodeIt NodeIt; |
| 1056 | 1062 |
|
| 1057 | 1063 |
using namespace _connectivity_bits; |
| 1058 | 1064 |
|
| 1059 | 1065 |
typedef CountBiEdgeConnectedComponentsVisitor<Graph> Visitor; |
| 1060 | 1066 |
|
| 1061 | 1067 |
int compNum = 0; |
| 1062 | 1068 |
Visitor visitor(graph, compNum); |
| 1063 | 1069 |
|
| 1064 | 1070 |
DfsVisit<Graph, Visitor> dfs(graph, visitor); |
| 1065 | 1071 |
dfs.init(); |
| 1066 | 1072 |
|
| 1067 | 1073 |
for (NodeIt it(graph); it != INVALID; ++it) {
|
| 1068 | 1074 |
if (!dfs.reached(it)) {
|
| 1069 | 1075 |
dfs.addSource(it); |
| 1070 | 1076 |
dfs.start(); |
| 1071 | 1077 |
} |
| 1072 | 1078 |
} |
| 1073 | 1079 |
return compNum; |
| 1074 | 1080 |
} |
| 1075 | 1081 |
|
| 1076 |
/// \ingroup |
|
| 1082 |
/// \ingroup graph_properties |
|
| 1077 | 1083 |
/// |
| 1078 | 1084 |
/// \brief Find the bi-edge-connected components. |
| 1079 | 1085 |
/// |
| 1080 | 1086 |
/// This function finds the bi-edge-connected components in an undirected |
| 1081 | 1087 |
/// graph. The bi-edge-connected components are the classes of an equivalence |
| 1082 | 1088 |
/// relation on the nodes. Two nodes are in relationship when they are |
| 1083 | 1089 |
/// connected at least two edge-disjoint paths. |
| 1084 | 1090 |
/// |
| 1091 |
/// \image html edge_biconnected_components.png |
|
| 1092 |
/// \image latex edge_biconnected_components.eps "bi-edge-connected components" width=\textwidth |
|
| 1093 |
/// |
|
| 1085 | 1094 |
/// \param graph The graph. |
| 1086 | 1095 |
/// \retval compMap A writable node map. The values will be set from 0 to |
| 1087 | 1096 |
/// the number of the biconnected components minus one. Each values |
| 1088 | 1097 |
/// of the map will be set exactly once, the values of a certain component |
| 1089 | 1098 |
/// will be set continuously. |
| 1090 | 1099 |
/// \return The number of components. |
| 1091 |
/// |
|
| 1092 | 1100 |
template <typename Graph, typename NodeMap> |
| 1093 | 1101 |
int biEdgeConnectedComponents(const Graph& graph, NodeMap& compMap) {
|
| 1094 | 1102 |
checkConcept<concepts::Graph, Graph>(); |
| 1095 | 1103 |
typedef typename Graph::NodeIt NodeIt; |
| 1096 | 1104 |
typedef typename Graph::Node Node; |
| 1097 | 1105 |
checkConcept<concepts::WriteMap<Node, int>, NodeMap>(); |
| 1098 | 1106 |
|
| 1099 | 1107 |
using namespace _connectivity_bits; |
| 1100 | 1108 |
|
| 1101 | 1109 |
typedef BiEdgeConnectedComponentsVisitor<Graph, NodeMap> Visitor; |
| 1102 | 1110 |
|
| 1103 | 1111 |
int compNum = 0; |
| 1104 | 1112 |
Visitor visitor(graph, compMap, compNum); |
| 1105 | 1113 |
|
| 1106 | 1114 |
DfsVisit<Graph, Visitor> dfs(graph, visitor); |
| 1107 | 1115 |
dfs.init(); |
| 1108 | 1116 |
|
| 1109 | 1117 |
for (NodeIt it(graph); it != INVALID; ++it) {
|
| 1110 | 1118 |
if (!dfs.reached(it)) {
|
| 1111 | 1119 |
dfs.addSource(it); |
| 1112 | 1120 |
dfs.start(); |
| 1113 | 1121 |
} |
| 1114 | 1122 |
} |
| 1115 | 1123 |
return compNum; |
| 1116 | 1124 |
} |
| 1117 | 1125 |
|
| 1118 |
/// \ingroup |
|
| 1126 |
/// \ingroup graph_properties |
|
| 1119 | 1127 |
/// |
| 1120 | 1128 |
/// \brief Find the bi-edge-connected cut edges. |
| 1121 | 1129 |
/// |
| 1122 | 1130 |
/// This function finds the bi-edge-connected components in an undirected |
| 1123 | 1131 |
/// graph. The bi-edge-connected components are the classes of an equivalence |
| 1124 | 1132 |
/// relation on the nodes. Two nodes are in relationship when they are |
| 1125 | 1133 |
/// connected with at least two edge-disjoint paths. The bi-edge-connected |
| 1126 | 1134 |
/// components are separted by edges which are the cut edges of the |
| 1127 | 1135 |
/// components. |
| 1128 | 1136 |
/// |
| 1129 | 1137 |
/// \param graph The graph. |
| 1130 | 1138 |
/// \retval cutMap A writable node map. The values will be set true when the |
| 1131 | 1139 |
/// edge is a cut edge. |
| 1132 | 1140 |
/// \return The number of cut edges. |
| 1133 | 1141 |
template <typename Graph, typename EdgeMap> |
| 1134 | 1142 |
int biEdgeConnectedCutEdges(const Graph& graph, EdgeMap& cutMap) {
|
| 1135 | 1143 |
checkConcept<concepts::Graph, Graph>(); |
| 1136 | 1144 |
typedef typename Graph::NodeIt NodeIt; |
| 1137 | 1145 |
typedef typename Graph::Edge Edge; |
| 1138 | 1146 |
checkConcept<concepts::WriteMap<Edge, bool>, EdgeMap>(); |
| 1139 | 1147 |
|
| 1140 | 1148 |
using namespace _connectivity_bits; |
| 1141 | 1149 |
|
| 1142 | 1150 |
typedef BiEdgeConnectedCutEdgesVisitor<Graph, EdgeMap> Visitor; |
| ... | ... |
@@ -1158,88 +1166,88 @@ |
| 1158 | 1166 |
|
| 1159 | 1167 |
|
| 1160 | 1168 |
namespace _connectivity_bits {
|
| 1161 | 1169 |
|
| 1162 | 1170 |
template <typename Digraph, typename IntNodeMap> |
| 1163 | 1171 |
class TopologicalSortVisitor : public DfsVisitor<Digraph> {
|
| 1164 | 1172 |
public: |
| 1165 | 1173 |
typedef typename Digraph::Node Node; |
| 1166 | 1174 |
typedef typename Digraph::Arc edge; |
| 1167 | 1175 |
|
| 1168 | 1176 |
TopologicalSortVisitor(IntNodeMap& order, int num) |
| 1169 | 1177 |
: _order(order), _num(num) {}
|
| 1170 | 1178 |
|
| 1171 | 1179 |
void leave(const Node& node) {
|
| 1172 | 1180 |
_order.set(node, --_num); |
| 1173 | 1181 |
} |
| 1174 | 1182 |
|
| 1175 | 1183 |
private: |
| 1176 | 1184 |
IntNodeMap& _order; |
| 1177 | 1185 |
int _num; |
| 1178 | 1186 |
}; |
| 1179 | 1187 |
|
| 1180 | 1188 |
} |
| 1181 | 1189 |
|
| 1182 |
/// \ingroup |
|
| 1190 |
/// \ingroup graph_properties |
|
| 1183 | 1191 |
/// |
| 1184 | 1192 |
/// \brief Sort the nodes of a DAG into topolgical order. |
| 1185 | 1193 |
/// |
| 1186 | 1194 |
/// Sort the nodes of a DAG into topolgical order. |
| 1187 | 1195 |
/// |
| 1188 | 1196 |
/// \param graph The graph. It must be directed and acyclic. |
| 1189 | 1197 |
/// \retval order A writable node map. The values will be set from 0 to |
| 1190 | 1198 |
/// the number of the nodes in the graph minus one. Each values of the map |
| 1191 | 1199 |
/// will be set exactly once, the values will be set descending order. |
| 1192 | 1200 |
/// |
| 1193 | 1201 |
/// \see checkedTopologicalSort |
| 1194 | 1202 |
/// \see dag |
| 1195 | 1203 |
template <typename Digraph, typename NodeMap> |
| 1196 | 1204 |
void topologicalSort(const Digraph& graph, NodeMap& order) {
|
| 1197 | 1205 |
using namespace _connectivity_bits; |
| 1198 | 1206 |
|
| 1199 | 1207 |
checkConcept<concepts::Digraph, Digraph>(); |
| 1200 | 1208 |
checkConcept<concepts::WriteMap<typename Digraph::Node, int>, NodeMap>(); |
| 1201 | 1209 |
|
| 1202 | 1210 |
typedef typename Digraph::Node Node; |
| 1203 | 1211 |
typedef typename Digraph::NodeIt NodeIt; |
| 1204 | 1212 |
typedef typename Digraph::Arc Arc; |
| 1205 | 1213 |
|
| 1206 | 1214 |
TopologicalSortVisitor<Digraph, NodeMap> |
| 1207 | 1215 |
visitor(order, countNodes(graph)); |
| 1208 | 1216 |
|
| 1209 | 1217 |
DfsVisit<Digraph, TopologicalSortVisitor<Digraph, NodeMap> > |
| 1210 | 1218 |
dfs(graph, visitor); |
| 1211 | 1219 |
|
| 1212 | 1220 |
dfs.init(); |
| 1213 | 1221 |
for (NodeIt it(graph); it != INVALID; ++it) {
|
| 1214 | 1222 |
if (!dfs.reached(it)) {
|
| 1215 | 1223 |
dfs.addSource(it); |
| 1216 | 1224 |
dfs.start(); |
| 1217 | 1225 |
} |
| 1218 | 1226 |
} |
| 1219 | 1227 |
} |
| 1220 | 1228 |
|
| 1221 |
/// \ingroup |
|
| 1229 |
/// \ingroup graph_properties |
|
| 1222 | 1230 |
/// |
| 1223 | 1231 |
/// \brief Sort the nodes of a DAG into topolgical order. |
| 1224 | 1232 |
/// |
| 1225 | 1233 |
/// Sort the nodes of a DAG into topolgical order. It also checks |
| 1226 | 1234 |
/// that the given graph is DAG. |
| 1227 | 1235 |
/// |
| 1228 | 1236 |
/// \param digraph The graph. It must be directed and acyclic. |
| 1229 | 1237 |
/// \retval order A readable - writable node map. The values will be set |
| 1230 | 1238 |
/// from 0 to the number of the nodes in the graph minus one. Each values |
| 1231 | 1239 |
/// of the map will be set exactly once, the values will be set descending |
| 1232 | 1240 |
/// order. |
| 1233 | 1241 |
/// \return \c false when the graph is not DAG. |
| 1234 | 1242 |
/// |
| 1235 | 1243 |
/// \see topologicalSort |
| 1236 | 1244 |
/// \see dag |
| 1237 | 1245 |
template <typename Digraph, typename NodeMap> |
| 1238 | 1246 |
bool checkedTopologicalSort(const Digraph& digraph, NodeMap& order) {
|
| 1239 | 1247 |
using namespace _connectivity_bits; |
| 1240 | 1248 |
|
| 1241 | 1249 |
checkConcept<concepts::Digraph, Digraph>(); |
| 1242 | 1250 |
checkConcept<concepts::ReadWriteMap<typename Digraph::Node, int>, |
| 1243 | 1251 |
NodeMap>(); |
| 1244 | 1252 |
|
| 1245 | 1253 |
typedef typename Digraph::Node Node; |
| ... | ... |
@@ -1252,125 +1260,125 @@ |
| 1252 | 1260 |
|
| 1253 | 1261 |
TopologicalSortVisitor<Digraph, NodeMap> |
| 1254 | 1262 |
visitor(order, countNodes(digraph)); |
| 1255 | 1263 |
|
| 1256 | 1264 |
DfsVisit<Digraph, TopologicalSortVisitor<Digraph, NodeMap> > |
| 1257 | 1265 |
dfs(digraph, visitor); |
| 1258 | 1266 |
|
| 1259 | 1267 |
dfs.init(); |
| 1260 | 1268 |
for (NodeIt it(digraph); it != INVALID; ++it) {
|
| 1261 | 1269 |
if (!dfs.reached(it)) {
|
| 1262 | 1270 |
dfs.addSource(it); |
| 1263 | 1271 |
while (!dfs.emptyQueue()) {
|
| 1264 | 1272 |
Arc arc = dfs.nextArc(); |
| 1265 | 1273 |
Node target = digraph.target(arc); |
| 1266 | 1274 |
if (dfs.reached(target) && order[target] == -1) {
|
| 1267 | 1275 |
return false; |
| 1268 | 1276 |
} |
| 1269 | 1277 |
dfs.processNextArc(); |
| 1270 | 1278 |
} |
| 1271 | 1279 |
} |
| 1272 | 1280 |
} |
| 1273 | 1281 |
return true; |
| 1274 | 1282 |
} |
| 1275 | 1283 |
|
| 1276 |
/// \ingroup |
|
| 1284 |
/// \ingroup graph_properties |
|
| 1277 | 1285 |
/// |
| 1278 | 1286 |
/// \brief Check that the given directed graph is a DAG. |
| 1279 | 1287 |
/// |
| 1280 | 1288 |
/// Check that the given directed graph is a DAG. The DAG is |
| 1281 | 1289 |
/// an Directed Acyclic Digraph. |
| 1282 | 1290 |
/// \return \c false when the graph is not DAG. |
| 1283 | 1291 |
/// \see acyclic |
| 1284 | 1292 |
template <typename Digraph> |
| 1285 | 1293 |
bool dag(const Digraph& digraph) {
|
| 1286 | 1294 |
|
| 1287 | 1295 |
checkConcept<concepts::Digraph, Digraph>(); |
| 1288 | 1296 |
|
| 1289 | 1297 |
typedef typename Digraph::Node Node; |
| 1290 | 1298 |
typedef typename Digraph::NodeIt NodeIt; |
| 1291 | 1299 |
typedef typename Digraph::Arc Arc; |
| 1292 | 1300 |
|
| 1293 | 1301 |
typedef typename Digraph::template NodeMap<bool> ProcessedMap; |
| 1294 | 1302 |
|
| 1295 | 1303 |
typename Dfs<Digraph>::template SetProcessedMap<ProcessedMap>:: |
| 1296 | 1304 |
Create dfs(digraph); |
| 1297 | 1305 |
|
| 1298 | 1306 |
ProcessedMap processed(digraph); |
| 1299 | 1307 |
dfs.processedMap(processed); |
| 1300 | 1308 |
|
| 1301 | 1309 |
dfs.init(); |
| 1302 | 1310 |
for (NodeIt it(digraph); it != INVALID; ++it) {
|
| 1303 | 1311 |
if (!dfs.reached(it)) {
|
| 1304 | 1312 |
dfs.addSource(it); |
| 1305 | 1313 |
while (!dfs.emptyQueue()) {
|
| 1306 | 1314 |
Arc edge = dfs.nextArc(); |
| 1307 | 1315 |
Node target = digraph.target(edge); |
| 1308 | 1316 |
if (dfs.reached(target) && !processed[target]) {
|
| 1309 | 1317 |
return false; |
| 1310 | 1318 |
} |
| 1311 | 1319 |
dfs.processNextArc(); |
| 1312 | 1320 |
} |
| 1313 | 1321 |
} |
| 1314 | 1322 |
} |
| 1315 | 1323 |
return true; |
| 1316 | 1324 |
} |
| 1317 | 1325 |
|
| 1318 |
/// \ingroup |
|
| 1326 |
/// \ingroup graph_properties |
|
| 1319 | 1327 |
/// |
| 1320 | 1328 |
/// \brief Check that the given undirected graph is acyclic. |
| 1321 | 1329 |
/// |
| 1322 | 1330 |
/// Check that the given undirected graph acyclic. |
| 1323 | 1331 |
/// \param graph The undirected graph. |
| 1324 | 1332 |
/// \return \c true when there is no circle in the graph. |
| 1325 | 1333 |
/// \see dag |
| 1326 | 1334 |
template <typename Graph> |
| 1327 | 1335 |
bool acyclic(const Graph& graph) {
|
| 1328 | 1336 |
checkConcept<concepts::Graph, Graph>(); |
| 1329 | 1337 |
typedef typename Graph::Node Node; |
| 1330 | 1338 |
typedef typename Graph::NodeIt NodeIt; |
| 1331 | 1339 |
typedef typename Graph::Arc Arc; |
| 1332 | 1340 |
Dfs<Graph> dfs(graph); |
| 1333 | 1341 |
dfs.init(); |
| 1334 | 1342 |
for (NodeIt it(graph); it != INVALID; ++it) {
|
| 1335 | 1343 |
if (!dfs.reached(it)) {
|
| 1336 | 1344 |
dfs.addSource(it); |
| 1337 | 1345 |
while (!dfs.emptyQueue()) {
|
| 1338 | 1346 |
Arc edge = dfs.nextArc(); |
| 1339 | 1347 |
Node source = graph.source(edge); |
| 1340 | 1348 |
Node target = graph.target(edge); |
| 1341 | 1349 |
if (dfs.reached(target) && |
| 1342 | 1350 |
dfs.predArc(source) != graph.oppositeArc(edge)) {
|
| 1343 | 1351 |
return false; |
| 1344 | 1352 |
} |
| 1345 | 1353 |
dfs.processNextArc(); |
| 1346 | 1354 |
} |
| 1347 | 1355 |
} |
| 1348 | 1356 |
} |
| 1349 | 1357 |
return true; |
| 1350 | 1358 |
} |
| 1351 | 1359 |
|
| 1352 |
/// \ingroup |
|
| 1360 |
/// \ingroup graph_properties |
|
| 1353 | 1361 |
/// |
| 1354 | 1362 |
/// \brief Check that the given undirected graph is tree. |
| 1355 | 1363 |
/// |
| 1356 | 1364 |
/// Check that the given undirected graph is tree. |
| 1357 | 1365 |
/// \param graph The undirected graph. |
| 1358 | 1366 |
/// \return \c true when the graph is acyclic and connected. |
| 1359 | 1367 |
template <typename Graph> |
| 1360 | 1368 |
bool tree(const Graph& graph) {
|
| 1361 | 1369 |
checkConcept<concepts::Graph, Graph>(); |
| 1362 | 1370 |
typedef typename Graph::Node Node; |
| 1363 | 1371 |
typedef typename Graph::NodeIt NodeIt; |
| 1364 | 1372 |
typedef typename Graph::Arc Arc; |
| 1365 | 1373 |
Dfs<Graph> dfs(graph); |
| 1366 | 1374 |
dfs.init(); |
| 1367 | 1375 |
dfs.addSource(NodeIt(graph)); |
| 1368 | 1376 |
while (!dfs.emptyQueue()) {
|
| 1369 | 1377 |
Arc edge = dfs.nextArc(); |
| 1370 | 1378 |
Node source = graph.source(edge); |
| 1371 | 1379 |
Node target = graph.target(edge); |
| 1372 | 1380 |
if (dfs.reached(target) && |
| 1373 | 1381 |
dfs.predArc(source) != graph.oppositeArc(edge)) {
|
| 1374 | 1382 |
return false; |
| 1375 | 1383 |
} |
| 1376 | 1384 |
dfs.processNextArc(); |
| ... | ... |
@@ -1420,93 +1428,97 @@ |
| 1420 | 1428 |
|
| 1421 | 1429 |
BipartitePartitionsVisitor(const Digraph& graph, |
| 1422 | 1430 |
PartMap& part, bool& bipartite) |
| 1423 | 1431 |
: _graph(graph), _part(part), _bipartite(bipartite) {}
|
| 1424 | 1432 |
|
| 1425 | 1433 |
void start(const Node& node) {
|
| 1426 | 1434 |
_part.set(node, true); |
| 1427 | 1435 |
} |
| 1428 | 1436 |
void discover(const Arc& edge) {
|
| 1429 | 1437 |
_part.set(_graph.target(edge), !_part[_graph.source(edge)]); |
| 1430 | 1438 |
} |
| 1431 | 1439 |
void examine(const Arc& edge) {
|
| 1432 | 1440 |
_bipartite = _bipartite && |
| 1433 | 1441 |
_part[_graph.target(edge)] != _part[_graph.source(edge)]; |
| 1434 | 1442 |
} |
| 1435 | 1443 |
|
| 1436 | 1444 |
private: |
| 1437 | 1445 |
|
| 1438 | 1446 |
const Digraph& _graph; |
| 1439 | 1447 |
PartMap& _part; |
| 1440 | 1448 |
bool& _bipartite; |
| 1441 | 1449 |
}; |
| 1442 | 1450 |
} |
| 1443 | 1451 |
|
| 1444 |
/// \ingroup |
|
| 1452 |
/// \ingroup graph_properties |
|
| 1445 | 1453 |
/// |
| 1446 | 1454 |
/// \brief Check if the given undirected graph is bipartite or not |
| 1447 | 1455 |
/// |
| 1448 | 1456 |
/// The function checks if the given undirected \c graph graph is bipartite |
| 1449 | 1457 |
/// or not. The \ref Bfs algorithm is used to calculate the result. |
| 1450 | 1458 |
/// \param graph The undirected graph. |
| 1451 | 1459 |
/// \return \c true if \c graph is bipartite, \c false otherwise. |
| 1452 | 1460 |
/// \sa bipartitePartitions |
| 1453 | 1461 |
template<typename Graph> |
| 1454 | 1462 |
inline bool bipartite(const Graph &graph){
|
| 1455 | 1463 |
using namespace _connectivity_bits; |
| 1456 | 1464 |
|
| 1457 | 1465 |
checkConcept<concepts::Graph, Graph>(); |
| 1458 | 1466 |
|
| 1459 | 1467 |
typedef typename Graph::NodeIt NodeIt; |
| 1460 | 1468 |
typedef typename Graph::ArcIt ArcIt; |
| 1461 | 1469 |
|
| 1462 | 1470 |
bool bipartite = true; |
| 1463 | 1471 |
|
| 1464 | 1472 |
BipartiteVisitor<Graph> |
| 1465 | 1473 |
visitor(graph, bipartite); |
| 1466 | 1474 |
BfsVisit<Graph, BipartiteVisitor<Graph> > |
| 1467 | 1475 |
bfs(graph, visitor); |
| 1468 | 1476 |
bfs.init(); |
| 1469 | 1477 |
for(NodeIt it(graph); it != INVALID; ++it) {
|
| 1470 | 1478 |
if(!bfs.reached(it)){
|
| 1471 | 1479 |
bfs.addSource(it); |
| 1472 | 1480 |
while (!bfs.emptyQueue()) {
|
| 1473 | 1481 |
bfs.processNextNode(); |
| 1474 | 1482 |
if (!bipartite) return false; |
| 1475 | 1483 |
} |
| 1476 | 1484 |
} |
| 1477 | 1485 |
} |
| 1478 | 1486 |
return true; |
| 1479 | 1487 |
} |
| 1480 | 1488 |
|
| 1481 |
/// \ingroup |
|
| 1489 |
/// \ingroup graph_properties |
|
| 1482 | 1490 |
/// |
| 1483 | 1491 |
/// \brief Check if the given undirected graph is bipartite or not |
| 1484 | 1492 |
/// |
| 1485 | 1493 |
/// The function checks if the given undirected graph is bipartite |
| 1486 | 1494 |
/// or not. The \ref Bfs algorithm is used to calculate the result. |
| 1487 | 1495 |
/// During the execution, the \c partMap will be set as the two |
| 1488 | 1496 |
/// partitions of the graph. |
| 1497 |
/// |
|
| 1498 |
/// \image html bipartite_partitions.png |
|
| 1499 |
/// \image latex bipartite_partitions.eps "Bipartite partititions" width=\textwidth |
|
| 1500 |
/// |
|
| 1489 | 1501 |
/// \param graph The undirected graph. |
| 1490 | 1502 |
/// \retval partMap A writable bool map of nodes. It will be set as the |
| 1491 | 1503 |
/// two partitions of the graph. |
| 1492 | 1504 |
/// \return \c true if \c graph is bipartite, \c false otherwise. |
| 1493 | 1505 |
template<typename Graph, typename NodeMap> |
| 1494 | 1506 |
inline bool bipartitePartitions(const Graph &graph, NodeMap &partMap){
|
| 1495 | 1507 |
using namespace _connectivity_bits; |
| 1496 | 1508 |
|
| 1497 | 1509 |
checkConcept<concepts::Graph, Graph>(); |
| 1498 | 1510 |
|
| 1499 | 1511 |
typedef typename Graph::Node Node; |
| 1500 | 1512 |
typedef typename Graph::NodeIt NodeIt; |
| 1501 | 1513 |
typedef typename Graph::ArcIt ArcIt; |
| 1502 | 1514 |
|
| 1503 | 1515 |
bool bipartite = true; |
| 1504 | 1516 |
|
| 1505 | 1517 |
BipartitePartitionsVisitor<Graph, NodeMap> |
| 1506 | 1518 |
visitor(graph, partMap, bipartite); |
| 1507 | 1519 |
BfsVisit<Graph, BipartitePartitionsVisitor<Graph, NodeMap> > |
| 1508 | 1520 |
bfs(graph, visitor); |
| 1509 | 1521 |
bfs.init(); |
| 1510 | 1522 |
for(NodeIt it(graph); it != INVALID; ++it) {
|
| 1511 | 1523 |
if(!bfs.reached(it)){
|
| 1512 | 1524 |
bfs.addSource(it); |
| ... | ... |
@@ -1294,225 +1294,225 @@ |
| 1294 | 1294 |
} |
| 1295 | 1295 |
|
| 1296 | 1296 |
virtual void add(const std::vector<Arc>& arcs) {
|
| 1297 | 1297 |
for (int i = 0; i < int(arcs.size()); ++i) {
|
| 1298 | 1298 |
insert(arcs[i]); |
| 1299 | 1299 |
} |
| 1300 | 1300 |
} |
| 1301 | 1301 |
|
| 1302 | 1302 |
virtual void erase(const Arc& arc) {
|
| 1303 | 1303 |
remove(arc); |
| 1304 | 1304 |
} |
| 1305 | 1305 |
|
| 1306 | 1306 |
virtual void erase(const std::vector<Arc>& arcs) {
|
| 1307 | 1307 |
for (int i = 0; i < int(arcs.size()); ++i) {
|
| 1308 | 1308 |
remove(arcs[i]); |
| 1309 | 1309 |
} |
| 1310 | 1310 |
} |
| 1311 | 1311 |
|
| 1312 | 1312 |
virtual void build() {
|
| 1313 | 1313 |
refresh(); |
| 1314 | 1314 |
} |
| 1315 | 1315 |
|
| 1316 | 1316 |
virtual void clear() {
|
| 1317 | 1317 |
for(NodeIt n(_g);n!=INVALID;++n) {
|
| 1318 |
_head |
|
| 1318 |
_head[n] = INVALID; |
|
| 1319 | 1319 |
} |
| 1320 | 1320 |
} |
| 1321 | 1321 |
|
| 1322 | 1322 |
void insert(Arc arc) {
|
| 1323 | 1323 |
Node s = _g.source(arc); |
| 1324 | 1324 |
Node t = _g.target(arc); |
| 1325 |
_left.set(arc, INVALID); |
|
| 1326 |
_right.set(arc, INVALID); |
|
| 1325 |
_left[arc] = INVALID; |
|
| 1326 |
_right[arc] = INVALID; |
|
| 1327 | 1327 |
|
| 1328 | 1328 |
Arc e = _head[s]; |
| 1329 | 1329 |
if (e == INVALID) {
|
| 1330 |
_head.set(s, arc); |
|
| 1331 |
_parent.set(arc, INVALID); |
|
| 1330 |
_head[s] = arc; |
|
| 1331 |
_parent[arc] = INVALID; |
|
| 1332 | 1332 |
return; |
| 1333 | 1333 |
} |
| 1334 | 1334 |
while (true) {
|
| 1335 | 1335 |
if (t < _g.target(e)) {
|
| 1336 | 1336 |
if (_left[e] == INVALID) {
|
| 1337 |
_left.set(e, arc); |
|
| 1338 |
_parent.set(arc, e); |
|
| 1337 |
_left[e] = arc; |
|
| 1338 |
_parent[arc] = e; |
|
| 1339 | 1339 |
splay(arc); |
| 1340 | 1340 |
return; |
| 1341 | 1341 |
} else {
|
| 1342 | 1342 |
e = _left[e]; |
| 1343 | 1343 |
} |
| 1344 | 1344 |
} else {
|
| 1345 | 1345 |
if (_right[e] == INVALID) {
|
| 1346 |
_right.set(e, arc); |
|
| 1347 |
_parent.set(arc, e); |
|
| 1346 |
_right[e] = arc; |
|
| 1347 |
_parent[arc] = e; |
|
| 1348 | 1348 |
splay(arc); |
| 1349 | 1349 |
return; |
| 1350 | 1350 |
} else {
|
| 1351 | 1351 |
e = _right[e]; |
| 1352 | 1352 |
} |
| 1353 | 1353 |
} |
| 1354 | 1354 |
} |
| 1355 | 1355 |
} |
| 1356 | 1356 |
|
| 1357 | 1357 |
void remove(Arc arc) {
|
| 1358 | 1358 |
if (_left[arc] == INVALID) {
|
| 1359 | 1359 |
if (_right[arc] != INVALID) {
|
| 1360 |
_parent |
|
| 1360 |
_parent[_right[arc]] = _parent[arc]; |
|
| 1361 | 1361 |
} |
| 1362 | 1362 |
if (_parent[arc] != INVALID) {
|
| 1363 | 1363 |
if (_left[_parent[arc]] == arc) {
|
| 1364 |
_left |
|
| 1364 |
_left[_parent[arc]] = _right[arc]; |
|
| 1365 | 1365 |
} else {
|
| 1366 |
_right |
|
| 1366 |
_right[_parent[arc]] = _right[arc]; |
|
| 1367 | 1367 |
} |
| 1368 | 1368 |
} else {
|
| 1369 |
_head |
|
| 1369 |
_head[_g.source(arc)] = _right[arc]; |
|
| 1370 | 1370 |
} |
| 1371 | 1371 |
} else if (_right[arc] == INVALID) {
|
| 1372 |
_parent |
|
| 1372 |
_parent[_left[arc]] = _parent[arc]; |
|
| 1373 | 1373 |
if (_parent[arc] != INVALID) {
|
| 1374 | 1374 |
if (_left[_parent[arc]] == arc) {
|
| 1375 |
_left |
|
| 1375 |
_left[_parent[arc]] = _left[arc]; |
|
| 1376 | 1376 |
} else {
|
| 1377 |
_right |
|
| 1377 |
_right[_parent[arc]] = _left[arc]; |
|
| 1378 | 1378 |
} |
| 1379 | 1379 |
} else {
|
| 1380 |
_head |
|
| 1380 |
_head[_g.source(arc)] = _left[arc]; |
|
| 1381 | 1381 |
} |
| 1382 | 1382 |
} else {
|
| 1383 | 1383 |
Arc e = _left[arc]; |
| 1384 | 1384 |
if (_right[e] != INVALID) {
|
| 1385 | 1385 |
e = _right[e]; |
| 1386 | 1386 |
while (_right[e] != INVALID) {
|
| 1387 | 1387 |
e = _right[e]; |
| 1388 | 1388 |
} |
| 1389 | 1389 |
Arc s = _parent[e]; |
| 1390 |
_right |
|
| 1390 |
_right[_parent[e]] = _left[e]; |
|
| 1391 | 1391 |
if (_left[e] != INVALID) {
|
| 1392 |
_parent |
|
| 1392 |
_parent[_left[e]] = _parent[e]; |
|
| 1393 | 1393 |
} |
| 1394 | 1394 |
|
| 1395 |
_left.set(e, _left[arc]); |
|
| 1396 |
_parent.set(_left[arc], e); |
|
| 1397 |
_right.set(e, _right[arc]); |
|
| 1398 |
_parent.set(_right[arc], e); |
|
| 1395 |
_left[e] = _left[arc]; |
|
| 1396 |
_parent[_left[arc]] = e; |
|
| 1397 |
_right[e] = _right[arc]; |
|
| 1398 |
_parent[_right[arc]] = e; |
|
| 1399 | 1399 |
|
| 1400 |
_parent |
|
| 1400 |
_parent[e] = _parent[arc]; |
|
| 1401 | 1401 |
if (_parent[arc] != INVALID) {
|
| 1402 | 1402 |
if (_left[_parent[arc]] == arc) {
|
| 1403 |
_left |
|
| 1403 |
_left[_parent[arc]] = e; |
|
| 1404 | 1404 |
} else {
|
| 1405 |
_right |
|
| 1405 |
_right[_parent[arc]] = e; |
|
| 1406 | 1406 |
} |
| 1407 | 1407 |
} |
| 1408 | 1408 |
splay(s); |
| 1409 | 1409 |
} else {
|
| 1410 |
_right.set(e, _right[arc]); |
|
| 1411 |
_parent.set(_right[arc], e); |
|
| 1412 |
|
|
| 1410 |
_right[e] = _right[arc]; |
|
| 1411 |
_parent[_right[arc]] = e; |
|
| 1412 |
_parent[e] = _parent[arc]; |
|
| 1413 | 1413 |
|
| 1414 | 1414 |
if (_parent[arc] != INVALID) {
|
| 1415 | 1415 |
if (_left[_parent[arc]] == arc) {
|
| 1416 |
_left |
|
| 1416 |
_left[_parent[arc]] = e; |
|
| 1417 | 1417 |
} else {
|
| 1418 |
_right |
|
| 1418 |
_right[_parent[arc]] = e; |
|
| 1419 | 1419 |
} |
| 1420 | 1420 |
} else {
|
| 1421 |
_head |
|
| 1421 |
_head[_g.source(arc)] = e; |
|
| 1422 | 1422 |
} |
| 1423 | 1423 |
} |
| 1424 | 1424 |
} |
| 1425 | 1425 |
} |
| 1426 | 1426 |
|
| 1427 | 1427 |
Arc refreshRec(std::vector<Arc> &v,int a,int b) |
| 1428 | 1428 |
{
|
| 1429 | 1429 |
int m=(a+b)/2; |
| 1430 | 1430 |
Arc me=v[m]; |
| 1431 | 1431 |
if (a < m) {
|
| 1432 | 1432 |
Arc left = refreshRec(v,a,m-1); |
| 1433 |
_left.set(me, left); |
|
| 1434 |
_parent.set(left, me); |
|
| 1433 |
_left[me] = left; |
|
| 1434 |
_parent[left] = me; |
|
| 1435 | 1435 |
} else {
|
| 1436 |
_left |
|
| 1436 |
_left[me] = INVALID; |
|
| 1437 | 1437 |
} |
| 1438 | 1438 |
if (m < b) {
|
| 1439 | 1439 |
Arc right = refreshRec(v,m+1,b); |
| 1440 |
_right.set(me, right); |
|
| 1441 |
_parent.set(right, me); |
|
| 1440 |
_right[me] = right; |
|
| 1441 |
_parent[right] = me; |
|
| 1442 | 1442 |
} else {
|
| 1443 |
_right |
|
| 1443 |
_right[me] = INVALID; |
|
| 1444 | 1444 |
} |
| 1445 | 1445 |
return me; |
| 1446 | 1446 |
} |
| 1447 | 1447 |
|
| 1448 | 1448 |
void refresh() {
|
| 1449 | 1449 |
for(NodeIt n(_g);n!=INVALID;++n) {
|
| 1450 | 1450 |
std::vector<Arc> v; |
| 1451 | 1451 |
for(OutArcIt a(_g,n);a!=INVALID;++a) v.push_back(a); |
| 1452 | 1452 |
if (!v.empty()) {
|
| 1453 | 1453 |
std::sort(v.begin(),v.end(),ArcLess(_g)); |
| 1454 | 1454 |
Arc head = refreshRec(v,0,v.size()-1); |
| 1455 |
_head.set(n, head); |
|
| 1456 |
_parent.set(head, INVALID); |
|
| 1455 |
_head[n] = head; |
|
| 1456 |
_parent[head] = INVALID; |
|
| 1457 | 1457 |
} |
| 1458 |
else _head |
|
| 1458 |
else _head[n] = INVALID; |
|
| 1459 | 1459 |
} |
| 1460 | 1460 |
} |
| 1461 | 1461 |
|
| 1462 | 1462 |
void zig(Arc v) {
|
| 1463 | 1463 |
Arc w = _parent[v]; |
| 1464 |
_parent.set(v, _parent[w]); |
|
| 1465 |
_parent.set(w, v); |
|
| 1466 |
_left.set(w, _right[v]); |
|
| 1467 |
_right.set(v, w); |
|
| 1464 |
_parent[v] = _parent[w]; |
|
| 1465 |
_parent[w] = v; |
|
| 1466 |
_left[w] = _right[v]; |
|
| 1467 |
_right[v] = w; |
|
| 1468 | 1468 |
if (_parent[v] != INVALID) {
|
| 1469 | 1469 |
if (_right[_parent[v]] == w) {
|
| 1470 |
_right |
|
| 1470 |
_right[_parent[v]] = v; |
|
| 1471 | 1471 |
} else {
|
| 1472 |
_left |
|
| 1472 |
_left[_parent[v]] = v; |
|
| 1473 | 1473 |
} |
| 1474 | 1474 |
} |
| 1475 | 1475 |
if (_left[w] != INVALID){
|
| 1476 |
_parent |
|
| 1476 |
_parent[_left[w]] = w; |
|
| 1477 | 1477 |
} |
| 1478 | 1478 |
} |
| 1479 | 1479 |
|
| 1480 | 1480 |
void zag(Arc v) {
|
| 1481 | 1481 |
Arc w = _parent[v]; |
| 1482 |
_parent.set(v, _parent[w]); |
|
| 1483 |
_parent.set(w, v); |
|
| 1484 |
_right.set(w, _left[v]); |
|
| 1485 |
_left.set(v, w); |
|
| 1482 |
_parent[v] = _parent[w]; |
|
| 1483 |
_parent[w] = v; |
|
| 1484 |
_right[w] = _left[v]; |
|
| 1485 |
_left[v] = w; |
|
| 1486 | 1486 |
if (_parent[v] != INVALID){
|
| 1487 | 1487 |
if (_left[_parent[v]] == w) {
|
| 1488 |
_left |
|
| 1488 |
_left[_parent[v]] = v; |
|
| 1489 | 1489 |
} else {
|
| 1490 |
_right |
|
| 1490 |
_right[_parent[v]] = v; |
|
| 1491 | 1491 |
} |
| 1492 | 1492 |
} |
| 1493 | 1493 |
if (_right[w] != INVALID){
|
| 1494 |
_parent |
|
| 1494 |
_parent[_right[w]] = w; |
|
| 1495 | 1495 |
} |
| 1496 | 1496 |
} |
| 1497 | 1497 |
|
| 1498 | 1498 |
void splay(Arc v) {
|
| 1499 | 1499 |
while (_parent[v] != INVALID) {
|
| 1500 | 1500 |
if (v == _left[_parent[v]]) {
|
| 1501 | 1501 |
if (_parent[_parent[v]] == INVALID) {
|
| 1502 | 1502 |
zig(v); |
| 1503 | 1503 |
} else {
|
| 1504 | 1504 |
if (_parent[v] == _left[_parent[_parent[v]]]) {
|
| 1505 | 1505 |
zig(_parent[v]); |
| 1506 | 1506 |
zig(v); |
| 1507 | 1507 |
} else {
|
| 1508 | 1508 |
zig(v); |
| 1509 | 1509 |
zag(v); |
| 1510 | 1510 |
} |
| 1511 | 1511 |
} |
| 1512 | 1512 |
} else {
|
| 1513 | 1513 |
if (_parent[_parent[v]] == INVALID) {
|
| 1514 | 1514 |
zag(v); |
| 1515 | 1515 |
} else {
|
| 1516 | 1516 |
if (_parent[v] == _left[_parent[_parent[v]]]) {
|
| 1517 | 1517 |
zag(v); |
| 1518 | 1518 |
zig(v); |
| ... | ... |
@@ -51,62 +51,65 @@ |
| 51 | 51 |
CplexEnv::CplexEnv(const CplexEnv& other) {
|
| 52 | 52 |
_env = other._env; |
| 53 | 53 |
_cnt = other._cnt; |
| 54 | 54 |
++(*_cnt); |
| 55 | 55 |
} |
| 56 | 56 |
|
| 57 | 57 |
CplexEnv& CplexEnv::operator=(const CplexEnv& other) {
|
| 58 | 58 |
_env = other._env; |
| 59 | 59 |
_cnt = other._cnt; |
| 60 | 60 |
++(*_cnt); |
| 61 | 61 |
return *this; |
| 62 | 62 |
} |
| 63 | 63 |
|
| 64 | 64 |
CplexEnv::~CplexEnv() {
|
| 65 | 65 |
--(*_cnt); |
| 66 | 66 |
if (*_cnt == 0) {
|
| 67 | 67 |
delete _cnt; |
| 68 | 68 |
CPXcloseCPLEX(&_env); |
| 69 | 69 |
} |
| 70 | 70 |
} |
| 71 | 71 |
|
| 72 | 72 |
CplexBase::CplexBase() : LpBase() {
|
| 73 | 73 |
int status; |
| 74 | 74 |
_prob = CPXcreateprob(cplexEnv(), &status, "Cplex problem"); |
| 75 |
messageLevel(MESSAGE_NOTHING); |
|
| 75 | 76 |
} |
| 76 | 77 |
|
| 77 | 78 |
CplexBase::CplexBase(const CplexEnv& env) |
| 78 | 79 |
: LpBase(), _env(env) {
|
| 79 | 80 |
int status; |
| 80 | 81 |
_prob = CPXcreateprob(cplexEnv(), &status, "Cplex problem"); |
| 82 |
messageLevel(MESSAGE_NOTHING); |
|
| 81 | 83 |
} |
| 82 | 84 |
|
| 83 | 85 |
CplexBase::CplexBase(const CplexBase& cplex) |
| 84 | 86 |
: LpBase() {
|
| 85 | 87 |
int status; |
| 86 | 88 |
_prob = CPXcloneprob(cplexEnv(), cplex._prob, &status); |
| 87 | 89 |
rows = cplex.rows; |
| 88 | 90 |
cols = cplex.cols; |
| 91 |
messageLevel(MESSAGE_NOTHING); |
|
| 89 | 92 |
} |
| 90 | 93 |
|
| 91 | 94 |
CplexBase::~CplexBase() {
|
| 92 | 95 |
CPXfreeprob(cplexEnv(),&_prob); |
| 93 | 96 |
} |
| 94 | 97 |
|
| 95 | 98 |
int CplexBase::_addCol() {
|
| 96 | 99 |
int i = CPXgetnumcols(cplexEnv(), _prob); |
| 97 | 100 |
double lb = -INF, ub = INF; |
| 98 | 101 |
CPXnewcols(cplexEnv(), _prob, 1, 0, &lb, &ub, 0, 0); |
| 99 | 102 |
return i; |
| 100 | 103 |
} |
| 101 | 104 |
|
| 102 | 105 |
|
| 103 | 106 |
int CplexBase::_addRow() {
|
| 104 | 107 |
int i = CPXgetnumrows(cplexEnv(), _prob); |
| 105 | 108 |
const double ub = INF; |
| 106 | 109 |
const char s = 'L'; |
| 107 | 110 |
CPXnewrows(cplexEnv(), _prob, 1, &ub, &s, 0, 0); |
| 108 | 111 |
return i; |
| 109 | 112 |
} |
| 110 | 113 |
|
| 111 | 114 |
|
| 112 | 115 |
void CplexBase::_eraseCol(int i) {
|
| ... | ... |
@@ -417,48 +420,67 @@ |
| 417 | 420 |
break; |
| 418 | 421 |
} |
| 419 | 422 |
} |
| 420 | 423 |
|
| 421 | 424 |
CplexBase::Sense CplexBase::_getSense() const {
|
| 422 | 425 |
switch (CPXgetobjsen(cplexEnv(), _prob)) {
|
| 423 | 426 |
case CPX_MIN: |
| 424 | 427 |
return MIN; |
| 425 | 428 |
case CPX_MAX: |
| 426 | 429 |
return MAX; |
| 427 | 430 |
default: |
| 428 | 431 |
LEMON_ASSERT(false, "Invalid sense"); |
| 429 | 432 |
return CplexBase::Sense(); |
| 430 | 433 |
} |
| 431 | 434 |
} |
| 432 | 435 |
|
| 433 | 436 |
void CplexBase::_clear() {
|
| 434 | 437 |
CPXfreeprob(cplexEnv(),&_prob); |
| 435 | 438 |
int status; |
| 436 | 439 |
_prob = CPXcreateprob(cplexEnv(), &status, "Cplex problem"); |
| 437 | 440 |
rows.clear(); |
| 438 | 441 |
cols.clear(); |
| 439 | 442 |
} |
| 440 | 443 |
|
| 444 |
void CplexBase::_messageLevel(MessageLevel level) {
|
|
| 445 |
switch (level) {
|
|
| 446 |
case MESSAGE_NOTHING: |
|
| 447 |
_message_enabled = false; |
|
| 448 |
break; |
|
| 449 |
case MESSAGE_ERROR: |
|
| 450 |
case MESSAGE_WARNING: |
|
| 451 |
case MESSAGE_NORMAL: |
|
| 452 |
case MESSAGE_VERBOSE: |
|
| 453 |
_message_enabled = true; |
|
| 454 |
break; |
|
| 455 |
} |
|
| 456 |
} |
|
| 457 |
|
|
| 458 |
void CplexBase::_applyMessageLevel() {
|
|
| 459 |
CPXsetintparam(cplexEnv(), CPX_PARAM_SCRIND, |
|
| 460 |
_message_enabled ? CPX_ON : CPX_OFF); |
|
| 461 |
} |
|
| 462 |
|
|
| 441 | 463 |
// CplexLp members |
| 442 | 464 |
|
| 443 | 465 |
CplexLp::CplexLp() |
| 444 | 466 |
: LpBase(), LpSolver(), CplexBase() {}
|
| 445 | 467 |
|
| 446 | 468 |
CplexLp::CplexLp(const CplexEnv& env) |
| 447 | 469 |
: LpBase(), LpSolver(), CplexBase(env) {}
|
| 448 | 470 |
|
| 449 | 471 |
CplexLp::CplexLp(const CplexLp& other) |
| 450 | 472 |
: LpBase(), LpSolver(), CplexBase(other) {}
|
| 451 | 473 |
|
| 452 | 474 |
CplexLp::~CplexLp() {}
|
| 453 | 475 |
|
| 454 | 476 |
CplexLp* CplexLp::newSolver() const { return new CplexLp; }
|
| 455 | 477 |
CplexLp* CplexLp::cloneSolver() const {return new CplexLp(*this); }
|
| 456 | 478 |
|
| 457 | 479 |
const char* CplexLp::_solverName() const { return "CplexLp"; }
|
| 458 | 480 |
|
| 459 | 481 |
void CplexLp::_clear_temporals() {
|
| 460 | 482 |
_col_status.clear(); |
| 461 | 483 |
_row_status.clear(); |
| 462 | 484 |
_primal_ray.clear(); |
| 463 | 485 |
_dual_ray.clear(); |
| 464 | 486 |
} |
| ... | ... |
@@ -486,63 +508,67 @@ |
| 486 | 508 |
} else {
|
| 487 | 509 |
return UNSOLVED; |
| 488 | 510 |
} |
| 489 | 511 |
#else |
| 490 | 512 |
if (status == 0) {
|
| 491 | 513 |
//We want to exclude some cases |
| 492 | 514 |
switch (CPXgetstat(cplexEnv(), _prob)) {
|
| 493 | 515 |
case CPX_OBJ_LIM: |
| 494 | 516 |
case CPX_IT_LIM_FEAS: |
| 495 | 517 |
case CPX_IT_LIM_INFEAS: |
| 496 | 518 |
case CPX_TIME_LIM_FEAS: |
| 497 | 519 |
case CPX_TIME_LIM_INFEAS: |
| 498 | 520 |
return UNSOLVED; |
| 499 | 521 |
default: |
| 500 | 522 |
return SOLVED; |
| 501 | 523 |
} |
| 502 | 524 |
} else {
|
| 503 | 525 |
return UNSOLVED; |
| 504 | 526 |
} |
| 505 | 527 |
#endif |
| 506 | 528 |
} |
| 507 | 529 |
|
| 508 | 530 |
CplexLp::SolveExitStatus CplexLp::_solve() {
|
| 509 | 531 |
_clear_temporals(); |
| 532 |
_applyMessageLevel(); |
|
| 510 | 533 |
return convertStatus(CPXlpopt(cplexEnv(), _prob)); |
| 511 | 534 |
} |
| 512 | 535 |
|
| 513 | 536 |
CplexLp::SolveExitStatus CplexLp::solvePrimal() {
|
| 514 | 537 |
_clear_temporals(); |
| 538 |
_applyMessageLevel(); |
|
| 515 | 539 |
return convertStatus(CPXprimopt(cplexEnv(), _prob)); |
| 516 | 540 |
} |
| 517 | 541 |
|
| 518 | 542 |
CplexLp::SolveExitStatus CplexLp::solveDual() {
|
| 519 | 543 |
_clear_temporals(); |
| 544 |
_applyMessageLevel(); |
|
| 520 | 545 |
return convertStatus(CPXdualopt(cplexEnv(), _prob)); |
| 521 | 546 |
} |
| 522 | 547 |
|
| 523 | 548 |
CplexLp::SolveExitStatus CplexLp::solveBarrier() {
|
| 524 | 549 |
_clear_temporals(); |
| 550 |
_applyMessageLevel(); |
|
| 525 | 551 |
return convertStatus(CPXbaropt(cplexEnv(), _prob)); |
| 526 | 552 |
} |
| 527 | 553 |
|
| 528 | 554 |
CplexLp::Value CplexLp::_getPrimal(int i) const {
|
| 529 | 555 |
Value x; |
| 530 | 556 |
CPXgetx(cplexEnv(), _prob, &x, i, i); |
| 531 | 557 |
return x; |
| 532 | 558 |
} |
| 533 | 559 |
|
| 534 | 560 |
CplexLp::Value CplexLp::_getDual(int i) const {
|
| 535 | 561 |
Value y; |
| 536 | 562 |
CPXgetpi(cplexEnv(), _prob, &y, i, i); |
| 537 | 563 |
return y; |
| 538 | 564 |
} |
| 539 | 565 |
|
| 540 | 566 |
CplexLp::Value CplexLp::_getPrimalValue() const {
|
| 541 | 567 |
Value objval; |
| 542 | 568 |
CPXgetobjval(cplexEnv(), _prob, &objval); |
| 543 | 569 |
return objval; |
| 544 | 570 |
} |
| 545 | 571 |
|
| 546 | 572 |
CplexLp::VarStatus CplexLp::_getColStatus(int i) const {
|
| 547 | 573 |
if (_col_status.empty()) {
|
| 548 | 574 |
_col_status.resize(CPXgetnumcols(cplexEnv(), _prob)); |
| ... | ... |
@@ -579,96 +605,96 @@ |
| 579 | 605 |
} |
| 580 | 606 |
case CPX_AT_UPPER: |
| 581 | 607 |
return UPPER; |
| 582 | 608 |
default: |
| 583 | 609 |
LEMON_ASSERT(false, "Wrong row status"); |
| 584 | 610 |
return CplexLp::VarStatus(); |
| 585 | 611 |
} |
| 586 | 612 |
} |
| 587 | 613 |
|
| 588 | 614 |
CplexLp::Value CplexLp::_getPrimalRay(int i) const {
|
| 589 | 615 |
if (_primal_ray.empty()) {
|
| 590 | 616 |
_primal_ray.resize(CPXgetnumcols(cplexEnv(), _prob)); |
| 591 | 617 |
CPXgetray(cplexEnv(), _prob, &_primal_ray.front()); |
| 592 | 618 |
} |
| 593 | 619 |
return _primal_ray[i]; |
| 594 | 620 |
} |
| 595 | 621 |
|
| 596 | 622 |
CplexLp::Value CplexLp::_getDualRay(int i) const {
|
| 597 | 623 |
if (_dual_ray.empty()) {
|
| 598 | 624 |
|
| 599 | 625 |
} |
| 600 | 626 |
return _dual_ray[i]; |
| 601 | 627 |
} |
| 602 | 628 |
|
| 603 |
// |
|
| 629 |
// Cplex 7.0 status values |
|
| 604 | 630 |
// This table lists the statuses, returned by the CPXgetstat() |
| 605 | 631 |
// routine, for solutions to LP problems or mixed integer problems. If |
| 606 | 632 |
// no solution exists, the return value is zero. |
| 607 | 633 |
|
| 608 | 634 |
// For Simplex, Barrier |
| 609 | 635 |
// 1 CPX_OPTIMAL |
| 610 | 636 |
// Optimal solution found |
| 611 | 637 |
// 2 CPX_INFEASIBLE |
| 612 | 638 |
// Problem infeasible |
| 613 | 639 |
// 3 CPX_UNBOUNDED |
| 614 | 640 |
// Problem unbounded |
| 615 | 641 |
// 4 CPX_OBJ_LIM |
| 616 | 642 |
// Objective limit exceeded in Phase II |
| 617 | 643 |
// 5 CPX_IT_LIM_FEAS |
| 618 | 644 |
// Iteration limit exceeded in Phase II |
| 619 | 645 |
// 6 CPX_IT_LIM_INFEAS |
| 620 | 646 |
// Iteration limit exceeded in Phase I |
| 621 | 647 |
// 7 CPX_TIME_LIM_FEAS |
| 622 | 648 |
// Time limit exceeded in Phase II |
| 623 | 649 |
// 8 CPX_TIME_LIM_INFEAS |
| 624 | 650 |
// Time limit exceeded in Phase I |
| 625 | 651 |
// 9 CPX_NUM_BEST_FEAS |
| 626 | 652 |
// Problem non-optimal, singularities in Phase II |
| 627 | 653 |
// 10 CPX_NUM_BEST_INFEAS |
| 628 | 654 |
// Problem non-optimal, singularities in Phase I |
| 629 | 655 |
// 11 CPX_OPTIMAL_INFEAS |
| 630 | 656 |
// Optimal solution found, unscaled infeasibilities |
| 631 | 657 |
// 12 CPX_ABORT_FEAS |
| 632 | 658 |
// Aborted in Phase II |
| 633 | 659 |
// 13 CPX_ABORT_INFEAS |
| 634 | 660 |
// Aborted in Phase I |
| 635 | 661 |
// 14 CPX_ABORT_DUAL_INFEAS |
| 636 | 662 |
// Aborted in barrier, dual infeasible |
| 637 | 663 |
// 15 CPX_ABORT_PRIM_INFEAS |
| 638 | 664 |
// Aborted in barrier, primal infeasible |
| 639 | 665 |
// 16 CPX_ABORT_PRIM_DUAL_INFEAS |
| 640 | 666 |
// Aborted in barrier, primal and dual infeasible |
| 641 | 667 |
// 17 CPX_ABORT_PRIM_DUAL_FEAS |
| 642 | 668 |
// Aborted in barrier, primal and dual feasible |
| 643 | 669 |
// 18 CPX_ABORT_CROSSOVER |
| 644 | 670 |
// Aborted in crossover |
| 645 | 671 |
// 19 CPX_INForUNBD |
| 646 | 672 |
// Infeasible or unbounded |
| 647 | 673 |
// 20 CPX_PIVOT |
| 648 | 674 |
// User pivot used |
| 649 | 675 |
// |
| 650 |
// |
|
| 676 |
// Pending return values |
|
| 651 | 677 |
// ??case CPX_ABORT_DUAL_INFEAS |
| 652 | 678 |
// ??case CPX_ABORT_CROSSOVER |
| 653 | 679 |
// ??case CPX_INForUNBD |
| 654 | 680 |
// ??case CPX_PIVOT |
| 655 | 681 |
|
| 656 | 682 |
//Some more interesting stuff: |
| 657 | 683 |
|
| 658 | 684 |
// CPX_PARAM_PROBMETHOD 1062 int LPMETHOD |
| 659 | 685 |
// 0 Automatic |
| 660 | 686 |
// 1 Primal Simplex |
| 661 | 687 |
// 2 Dual Simplex |
| 662 | 688 |
// 3 Network Simplex |
| 663 | 689 |
// 4 Standard Barrier |
| 664 | 690 |
// Default: 0 |
| 665 | 691 |
// Description: Method for linear optimization. |
| 666 | 692 |
// Determines which algorithm is used when CPXlpopt() (or "optimize" |
| 667 | 693 |
// in the Interactive Optimizer) is called. Currently the behavior of |
| 668 | 694 |
// the "Automatic" setting is that CPLEX simply invokes the dual |
| 669 | 695 |
// simplex method, but this capability may be expanded in the future |
| 670 | 696 |
// so that CPLEX chooses the method based on problem characteristics |
| 671 | 697 |
#if CPX_VERSION < 900 |
| 672 | 698 |
void statusSwitch(CPXENVptr cplexEnv(),int& stat){
|
| 673 | 699 |
int lpmethod; |
| 674 | 700 |
CPXgetintparam (cplexEnv(),CPX_PARAM_PROBMETHOD,&lpmethod); |
| ... | ... |
@@ -697,82 +723,81 @@ |
| 697 | 723 |
// the unbounded ray can be added to x to give a feasible solution |
| 698 | 724 |
// with objective z-1 (or z+1 for maximization models). Thus, if a |
| 699 | 725 |
// feasible solution exists, then the optimal objective is |
| 700 | 726 |
// unbounded. Note that ILOG CPLEX has not necessarily concluded that |
| 701 | 727 |
// a feasible solution exists. Users can call the routine CPXsolninfo |
| 702 | 728 |
// to determine whether ILOG CPLEX has also concluded that the model |
| 703 | 729 |
// has a feasible solution. |
| 704 | 730 |
|
| 705 | 731 |
int stat = CPXgetstat(cplexEnv(), _prob); |
| 706 | 732 |
#if CPX_VERSION >= 800 |
| 707 | 733 |
switch (stat) |
| 708 | 734 |
{
|
| 709 | 735 |
case CPX_STAT_OPTIMAL: |
| 710 | 736 |
return OPTIMAL; |
| 711 | 737 |
case CPX_STAT_UNBOUNDED: |
| 712 | 738 |
return UNBOUNDED; |
| 713 | 739 |
case CPX_STAT_INFEASIBLE: |
| 714 | 740 |
return INFEASIBLE; |
| 715 | 741 |
default: |
| 716 | 742 |
return UNDEFINED; |
| 717 | 743 |
} |
| 718 | 744 |
#else |
| 719 | 745 |
statusSwitch(cplexEnv(),stat); |
| 720 | 746 |
//CPXgetstat(cplexEnv(), _prob); |
| 721 |
//printf("A primal status: %d, CPX_OPTIMAL=%d \n",stat,CPX_OPTIMAL);
|
|
| 722 | 747 |
switch (stat) {
|
| 723 | 748 |
case 0: |
| 724 | 749 |
return UNDEFINED; //Undefined |
| 725 | 750 |
case CPX_OPTIMAL://Optimal |
| 726 | 751 |
return OPTIMAL; |
| 727 | 752 |
case CPX_UNBOUNDED://Unbounded |
| 728 | 753 |
return INFEASIBLE;//In case of dual simplex |
| 729 | 754 |
//return UNBOUNDED; |
| 730 | 755 |
case CPX_INFEASIBLE://Infeasible |
| 731 | 756 |
// case CPX_IT_LIM_INFEAS: |
| 732 | 757 |
// case CPX_TIME_LIM_INFEAS: |
| 733 | 758 |
// case CPX_NUM_BEST_INFEAS: |
| 734 | 759 |
// case CPX_OPTIMAL_INFEAS: |
| 735 | 760 |
// case CPX_ABORT_INFEAS: |
| 736 | 761 |
// case CPX_ABORT_PRIM_INFEAS: |
| 737 | 762 |
// case CPX_ABORT_PRIM_DUAL_INFEAS: |
| 738 | 763 |
return UNBOUNDED;//In case of dual simplex |
| 739 | 764 |
//return INFEASIBLE; |
| 740 | 765 |
// case CPX_OBJ_LIM: |
| 741 | 766 |
// case CPX_IT_LIM_FEAS: |
| 742 | 767 |
// case CPX_TIME_LIM_FEAS: |
| 743 | 768 |
// case CPX_NUM_BEST_FEAS: |
| 744 | 769 |
// case CPX_ABORT_FEAS: |
| 745 | 770 |
// case CPX_ABORT_PRIM_DUAL_FEAS: |
| 746 | 771 |
// return FEASIBLE; |
| 747 | 772 |
default: |
| 748 | 773 |
return UNDEFINED; //Everything else comes here |
| 749 | 774 |
//FIXME error |
| 750 | 775 |
} |
| 751 | 776 |
#endif |
| 752 | 777 |
} |
| 753 | 778 |
|
| 754 |
//9.0 |
|
| 779 |
// Cplex 9.0 status values |
|
| 755 | 780 |
// CPX_STAT_ABORT_DUAL_OBJ_LIM |
| 756 | 781 |
// CPX_STAT_ABORT_IT_LIM |
| 757 | 782 |
// CPX_STAT_ABORT_OBJ_LIM |
| 758 | 783 |
// CPX_STAT_ABORT_PRIM_OBJ_LIM |
| 759 | 784 |
// CPX_STAT_ABORT_TIME_LIM |
| 760 | 785 |
// CPX_STAT_ABORT_USER |
| 761 | 786 |
// CPX_STAT_FEASIBLE_RELAXED |
| 762 | 787 |
// CPX_STAT_INFEASIBLE |
| 763 | 788 |
// CPX_STAT_INForUNBD |
| 764 | 789 |
// CPX_STAT_NUM_BEST |
| 765 | 790 |
// CPX_STAT_OPTIMAL |
| 766 | 791 |
// CPX_STAT_OPTIMAL_FACE_UNBOUNDED |
| 767 | 792 |
// CPX_STAT_OPTIMAL_INFEAS |
| 768 | 793 |
// CPX_STAT_OPTIMAL_RELAXED |
| 769 | 794 |
// CPX_STAT_UNBOUNDED |
| 770 | 795 |
|
| 771 | 796 |
CplexLp::ProblemType CplexLp::_getDualType() const {
|
| 772 | 797 |
int stat = CPXgetstat(cplexEnv(), _prob); |
| 773 | 798 |
#if CPX_VERSION >= 800 |
| 774 | 799 |
switch (stat) {
|
| 775 | 800 |
case CPX_STAT_OPTIMAL: |
| 776 | 801 |
return OPTIMAL; |
| 777 | 802 |
case CPX_STAT_UNBOUNDED: |
| 778 | 803 |
return INFEASIBLE; |
| ... | ... |
@@ -843,48 +868,49 @@ |
| 843 | 868 |
CPXchgctype (cplexEnv(), _prob, 1, &i, &t); |
| 844 | 869 |
} break; |
| 845 | 870 |
default: |
| 846 | 871 |
break; |
| 847 | 872 |
} |
| 848 | 873 |
} |
| 849 | 874 |
|
| 850 | 875 |
CplexMip::ColTypes CplexMip::_getColType(int i) const {
|
| 851 | 876 |
char t; |
| 852 | 877 |
CPXgetctype (cplexEnv(), _prob, &t, i, i); |
| 853 | 878 |
switch (t) {
|
| 854 | 879 |
case 'I': |
| 855 | 880 |
return INTEGER; |
| 856 | 881 |
case 'C': |
| 857 | 882 |
return REAL; |
| 858 | 883 |
default: |
| 859 | 884 |
LEMON_ASSERT(false, "Invalid column type"); |
| 860 | 885 |
return ColTypes(); |
| 861 | 886 |
} |
| 862 | 887 |
|
| 863 | 888 |
} |
| 864 | 889 |
|
| 865 | 890 |
CplexMip::SolveExitStatus CplexMip::_solve() {
|
| 866 | 891 |
int status; |
| 892 |
_applyMessageLevel(); |
|
| 867 | 893 |
status = CPXmipopt (cplexEnv(), _prob); |
| 868 | 894 |
if (status==0) |
| 869 | 895 |
return SOLVED; |
| 870 | 896 |
else |
| 871 | 897 |
return UNSOLVED; |
| 872 | 898 |
|
| 873 | 899 |
} |
| 874 | 900 |
|
| 875 | 901 |
|
| 876 | 902 |
CplexMip::ProblemType CplexMip::_getType() const {
|
| 877 | 903 |
|
| 878 | 904 |
int stat = CPXgetstat(cplexEnv(), _prob); |
| 879 | 905 |
|
| 880 | 906 |
//Fortunately, MIP statuses did not change for cplex 8.0 |
| 881 | 907 |
switch (stat) {
|
| 882 | 908 |
case CPXMIP_OPTIMAL: |
| 883 | 909 |
// Optimal integer solution has been found. |
| 884 | 910 |
case CPXMIP_OPTIMAL_TOL: |
| 885 | 911 |
// Optimal soluton with the tolerance defined by epgap or epagap has |
| 886 | 912 |
// been found. |
| 887 | 913 |
return OPTIMAL; |
| 888 | 914 |
//This also exists in later issues |
| 889 | 915 |
// case CPXMIP_UNBOUNDED: |
| 890 | 916 |
//return UNBOUNDED; |
| ... | ... |
@@ -123,56 +123,71 @@ |
| 123 | 123 |
virtual void _setColUpperBound(int i, Value value); |
| 124 | 124 |
virtual Value _getColUpperBound(int i) const; |
| 125 | 125 |
|
| 126 | 126 |
private: |
| 127 | 127 |
void _set_row_bounds(int i, Value lb, Value ub); |
| 128 | 128 |
protected: |
| 129 | 129 |
|
| 130 | 130 |
virtual void _setRowLowerBound(int i, Value value); |
| 131 | 131 |
virtual Value _getRowLowerBound(int i) const; |
| 132 | 132 |
|
| 133 | 133 |
virtual void _setRowUpperBound(int i, Value value); |
| 134 | 134 |
virtual Value _getRowUpperBound(int i) const; |
| 135 | 135 |
|
| 136 | 136 |
virtual void _setObjCoeffs(ExprIterator b, ExprIterator e); |
| 137 | 137 |
virtual void _getObjCoeffs(InsertIterator b) const; |
| 138 | 138 |
|
| 139 | 139 |
virtual void _setObjCoeff(int i, Value obj_coef); |
| 140 | 140 |
virtual Value _getObjCoeff(int i) const; |
| 141 | 141 |
|
| 142 | 142 |
virtual void _setSense(Sense sense); |
| 143 | 143 |
virtual Sense _getSense() const; |
| 144 | 144 |
|
| 145 | 145 |
virtual void _clear(); |
| 146 | 146 |
|
| 147 |
virtual void _messageLevel(MessageLevel level); |
|
| 148 |
void _applyMessageLevel(); |
|
| 149 |
|
|
| 150 |
bool _message_enabled; |
|
| 151 |
|
|
| 147 | 152 |
public: |
| 148 | 153 |
|
| 149 | 154 |
/// Returns the used \c CplexEnv instance |
| 150 | 155 |
const CplexEnv& env() const { return _env; }
|
| 156 |
|
|
| 157 |
/// \brief Returns the const cpxenv pointer |
|
| 151 | 158 |
/// |
| 159 |
/// \note The cpxenv might be destructed with the solver. |
|
| 152 | 160 |
const cpxenv* cplexEnv() const { return _env.cplexEnv(); }
|
| 153 | 161 |
|
| 162 |
/// \brief Returns the const cpxenv pointer |
|
| 163 |
/// |
|
| 164 |
/// \note The cpxenv might be destructed with the solver. |
|
| 165 |
cpxenv* cplexEnv() { return _env.cplexEnv(); }
|
|
| 166 |
|
|
| 167 |
/// Returns the cplex problem object |
|
| 154 | 168 |
cpxlp* cplexLp() { return _prob; }
|
| 169 |
/// Returns the cplex problem object |
|
| 155 | 170 |
const cpxlp* cplexLp() const { return _prob; }
|
| 156 | 171 |
|
| 157 | 172 |
}; |
| 158 | 173 |
|
| 159 | 174 |
/// \brief Interface for the CPLEX LP solver |
| 160 | 175 |
/// |
| 161 | 176 |
/// This class implements an interface for the CPLEX LP solver. |
| 162 | 177 |
///\ingroup lp_group |
| 163 | 178 |
class CplexLp : public LpSolver, public CplexBase {
|
| 164 | 179 |
public: |
| 165 | 180 |
/// \e |
| 166 | 181 |
CplexLp(); |
| 167 | 182 |
/// \e |
| 168 | 183 |
CplexLp(const CplexEnv&); |
| 169 | 184 |
/// \e |
| 170 | 185 |
CplexLp(const CplexLp&); |
| 171 | 186 |
/// \e |
| 172 | 187 |
virtual ~CplexLp(); |
| 173 | 188 |
|
| 174 | 189 |
/// \e |
| 175 | 190 |
virtual CplexLp* cloneSolver() const; |
| 176 | 191 |
/// \e |
| 177 | 192 |
virtual CplexLp* newSolver() const; |
| 178 | 193 |
| ... | ... |
@@ -185,49 +185,49 @@ |
| 185 | 185 |
_pred = Traits::createPredMap(*G); |
| 186 | 186 |
} |
| 187 | 187 |
if(!_dist) {
|
| 188 | 188 |
local_dist = true; |
| 189 | 189 |
_dist = Traits::createDistMap(*G); |
| 190 | 190 |
} |
| 191 | 191 |
if(!_reached) {
|
| 192 | 192 |
local_reached = true; |
| 193 | 193 |
_reached = Traits::createReachedMap(*G); |
| 194 | 194 |
} |
| 195 | 195 |
if(!_processed) {
|
| 196 | 196 |
local_processed = true; |
| 197 | 197 |
_processed = Traits::createProcessedMap(*G); |
| 198 | 198 |
} |
| 199 | 199 |
} |
| 200 | 200 |
|
| 201 | 201 |
protected: |
| 202 | 202 |
|
| 203 | 203 |
Dfs() {}
|
| 204 | 204 |
|
| 205 | 205 |
public: |
| 206 | 206 |
|
| 207 | 207 |
typedef Dfs Create; |
| 208 | 208 |
|
| 209 |
///\name Named |
|
| 209 |
///\name Named Template Parameters |
|
| 210 | 210 |
|
| 211 | 211 |
///@{
|
| 212 | 212 |
|
| 213 | 213 |
template <class T> |
| 214 | 214 |
struct SetPredMapTraits : public Traits {
|
| 215 | 215 |
typedef T PredMap; |
| 216 | 216 |
static PredMap *createPredMap(const Digraph &) |
| 217 | 217 |
{
|
| 218 | 218 |
LEMON_ASSERT(false, "PredMap is not initialized"); |
| 219 | 219 |
return 0; // ignore warnings |
| 220 | 220 |
} |
| 221 | 221 |
}; |
| 222 | 222 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 223 | 223 |
///\c PredMap type. |
| 224 | 224 |
/// |
| 225 | 225 |
///\ref named-templ-param "Named parameter" for setting |
| 226 | 226 |
///\c PredMap type. |
| 227 | 227 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 228 | 228 |
template <class T> |
| 229 | 229 |
struct SetPredMap : public Dfs<Digraph, SetPredMapTraits<T> > {
|
| 230 | 230 |
typedef Dfs<Digraph, SetPredMapTraits<T> > Create; |
| 231 | 231 |
}; |
| 232 | 232 |
|
| 233 | 233 |
template <class T> |
| ... | ... |
@@ -265,49 +265,49 @@ |
| 265 | 265 |
_pred = Traits::createPredMap(*G); |
| 266 | 266 |
} |
| 267 | 267 |
if(!_dist) {
|
| 268 | 268 |
local_dist = true; |
| 269 | 269 |
_dist = Traits::createDistMap(*G); |
| 270 | 270 |
} |
| 271 | 271 |
if(!_processed) {
|
| 272 | 272 |
local_processed = true; |
| 273 | 273 |
_processed = Traits::createProcessedMap(*G); |
| 274 | 274 |
} |
| 275 | 275 |
if (!_heap_cross_ref) {
|
| 276 | 276 |
local_heap_cross_ref = true; |
| 277 | 277 |
_heap_cross_ref = Traits::createHeapCrossRef(*G); |
| 278 | 278 |
} |
| 279 | 279 |
if (!_heap) {
|
| 280 | 280 |
local_heap = true; |
| 281 | 281 |
_heap = Traits::createHeap(*_heap_cross_ref); |
| 282 | 282 |
} |
| 283 | 283 |
} |
| 284 | 284 |
|
| 285 | 285 |
public: |
| 286 | 286 |
|
| 287 | 287 |
typedef Dijkstra Create; |
| 288 | 288 |
|
| 289 |
///\name Named |
|
| 289 |
///\name Named Template Parameters |
|
| 290 | 290 |
|
| 291 | 291 |
///@{
|
| 292 | 292 |
|
| 293 | 293 |
template <class T> |
| 294 | 294 |
struct SetPredMapTraits : public Traits {
|
| 295 | 295 |
typedef T PredMap; |
| 296 | 296 |
static PredMap *createPredMap(const Digraph &) |
| 297 | 297 |
{
|
| 298 | 298 |
LEMON_ASSERT(false, "PredMap is not initialized"); |
| 299 | 299 |
return 0; // ignore warnings |
| 300 | 300 |
} |
| 301 | 301 |
}; |
| 302 | 302 |
///\brief \ref named-templ-param "Named parameter" for setting |
| 303 | 303 |
///\c PredMap type. |
| 304 | 304 |
/// |
| 305 | 305 |
///\ref named-templ-param "Named parameter" for setting |
| 306 | 306 |
///\c PredMap type. |
| 307 | 307 |
///It must meet the \ref concepts::WriteMap "WriteMap" concept. |
| 308 | 308 |
template <class T> |
| 309 | 309 |
struct SetPredMap |
| 310 | 310 |
: public Dijkstra< Digraph, LengthMap, SetPredMapTraits<T> > {
|
| 311 | 311 |
typedef Dijkstra< Digraph, LengthMap, SetPredMapTraits<T> > Create; |
| 312 | 312 |
}; |
| 313 | 313 |
| ... | ... |
@@ -16,109 +16,113 @@ |
| 16 | 16 |
* |
| 17 | 17 |
*/ |
| 18 | 18 |
|
| 19 | 19 |
#ifndef LEMON_DIMACS_H |
| 20 | 20 |
#define LEMON_DIMACS_H |
| 21 | 21 |
|
| 22 | 22 |
#include <iostream> |
| 23 | 23 |
#include <string> |
| 24 | 24 |
#include <vector> |
| 25 | 25 |
#include <limits> |
| 26 | 26 |
#include <lemon/maps.h> |
| 27 | 27 |
#include <lemon/error.h> |
| 28 | 28 |
/// \ingroup dimacs_group |
| 29 | 29 |
/// \file |
| 30 | 30 |
/// \brief DIMACS file format reader. |
| 31 | 31 |
|
| 32 | 32 |
namespace lemon {
|
| 33 | 33 |
|
| 34 | 34 |
/// \addtogroup dimacs_group |
| 35 | 35 |
/// @{
|
| 36 | 36 |
|
| 37 | 37 |
/// DIMACS file type descriptor. |
| 38 | 38 |
struct DimacsDescriptor |
| 39 | 39 |
{
|
| 40 |
///File type enum |
|
| 41 |
enum Type |
|
| 42 |
{
|
|
| 43 |
NONE, MIN, MAX, SP, MAT |
|
| 44 |
|
|
| 40 |
///\brief DIMACS file type enum |
|
| 41 |
/// |
|
| 42 |
///DIMACS file type enum. |
|
| 43 |
enum Type {
|
|
| 44 |
NONE, ///< Undefined type. |
|
| 45 |
MIN, ///< DIMACS file type for minimum cost flow problems. |
|
| 46 |
MAX, ///< DIMACS file type for maximum flow problems. |
|
| 47 |
SP, ///< DIMACS file type for shostest path problems. |
|
| 48 |
MAT ///< DIMACS file type for plain graphs and matching problems. |
|
| 49 |
}; |
|
| 45 | 50 |
///The file type |
| 46 | 51 |
Type type; |
| 47 | 52 |
///The number of nodes in the graph |
| 48 | 53 |
int nodeNum; |
| 49 | 54 |
///The number of edges in the graph |
| 50 | 55 |
int edgeNum; |
| 51 | 56 |
int lineShift; |
| 52 |
/// |
|
| 57 |
///Constructor. It sets the type to \c NONE. |
|
| 53 | 58 |
DimacsDescriptor() : type(NONE) {}
|
| 54 | 59 |
}; |
| 55 | 60 |
|
| 56 | 61 |
///Discover the type of a DIMACS file |
| 57 | 62 |
|
| 58 |
///It starts seeking the beginning of the file for the problem type |
|
| 59 |
///and size info. The found data is returned in a special struct |
|
| 60 |
///that can be evaluated and passed to the appropriate reader |
|
| 61 |
///function. |
|
| 63 |
///This function starts seeking the beginning of the given file for the |
|
| 64 |
///problem type and size info. |
|
| 65 |
///The found data is returned in a special struct that can be evaluated |
|
| 66 |
///and passed to the appropriate reader function. |
|
| 62 | 67 |
DimacsDescriptor dimacsType(std::istream& is) |
| 63 | 68 |
{
|
| 64 | 69 |
DimacsDescriptor r; |
| 65 | 70 |
std::string problem,str; |
| 66 | 71 |
char c; |
| 67 | 72 |
r.lineShift=0; |
| 68 | 73 |
while (is >> c) |
| 69 | 74 |
switch(c) |
| 70 | 75 |
{
|
| 71 | 76 |
case 'p': |
| 72 | 77 |
if(is >> problem >> r.nodeNum >> r.edgeNum) |
| 73 | 78 |
{
|
| 74 | 79 |
getline(is, str); |
| 75 | 80 |
r.lineShift++; |
| 76 | 81 |
if(problem=="min") r.type=DimacsDescriptor::MIN; |
| 77 | 82 |
else if(problem=="max") r.type=DimacsDescriptor::MAX; |
| 78 | 83 |
else if(problem=="sp") r.type=DimacsDescriptor::SP; |
| 79 | 84 |
else if(problem=="mat") r.type=DimacsDescriptor::MAT; |
| 80 | 85 |
else throw FormatError("Unknown problem type");
|
| 81 | 86 |
return r; |
| 82 | 87 |
} |
| 83 | 88 |
else |
| 84 | 89 |
{
|
| 85 | 90 |
throw FormatError("Missing or wrong problem type declaration.");
|
| 86 | 91 |
} |
| 87 | 92 |
break; |
| 88 | 93 |
case 'c': |
| 89 | 94 |
getline(is, str); |
| 90 | 95 |
r.lineShift++; |
| 91 | 96 |
break; |
| 92 | 97 |
default: |
| 93 | 98 |
throw FormatError("Unknown DIMACS declaration.");
|
| 94 | 99 |
} |
| 95 | 100 |
throw FormatError("Missing problem type declaration.");
|
| 96 | 101 |
} |
| 97 | 102 |
|
| 98 | 103 |
|
| 99 |
|
|
| 100 |
/// DIMACS minimum cost flow reader function. |
|
| 104 |
/// \brief DIMACS minimum cost flow reader function. |
|
| 101 | 105 |
/// |
| 102 | 106 |
/// This function reads a minimum cost flow instance from DIMACS format, |
| 103 | 107 |
/// i.e. from a DIMACS file having a line starting with |
| 104 | 108 |
/// \code |
| 105 | 109 |
/// p min |
| 106 | 110 |
/// \endcode |
| 107 | 111 |
/// At the beginning, \c g is cleared by \c g.clear(). The supply |
| 108 | 112 |
/// amount of the nodes are written to the \c supply node map |
| 109 | 113 |
/// (they are signed values). The lower bounds, capacities and costs |
| 110 | 114 |
/// of the arcs are written to the \c lower, \c capacity and \c cost |
| 111 | 115 |
/// arc maps. |
| 112 | 116 |
/// |
| 113 | 117 |
/// If the capacity of an arc is less than the lower bound, it will |
| 114 | 118 |
/// be set to "infinite" instead. The actual value of "infinite" is |
| 115 | 119 |
/// contolled by the \c infty parameter. If it is 0 (the default value), |
| 116 | 120 |
/// \c std::numeric_limits<Capacity>::infinity() will be used if available, |
| 117 | 121 |
/// \c std::numeric_limits<Capacity>::max() otherwise. If \c infty is set to |
| 118 | 122 |
/// a non-zero value, that value will be used as "infinite". |
| 119 | 123 |
/// |
| 120 | 124 |
/// If the file type was previously evaluated by dimacsType(), then |
| 121 | 125 |
/// the descriptor struct should be given by the \c dest parameter. |
| 122 | 126 |
template <typename Digraph, typename LowerMap, |
| 123 | 127 |
typename CapacityMap, typename CostMap, |
| 124 | 128 |
typename SupplyMap> |
| ... | ... |
@@ -232,159 +236,159 @@ |
| 232 | 236 |
is >> i >> j >> _cap; |
| 233 | 237 |
getline(is, str); |
| 234 | 238 |
e = g.addArc(nodes[i], nodes[j]); |
| 235 | 239 |
capacity.set(e, _cap); |
| 236 | 240 |
} |
| 237 | 241 |
else if (desc.type==DimacsDescriptor::MAX) {
|
| 238 | 242 |
is >> i >> j >> _cap; |
| 239 | 243 |
getline(is, str); |
| 240 | 244 |
e = g.addArc(nodes[i], nodes[j]); |
| 241 | 245 |
if (_cap >= 0) |
| 242 | 246 |
capacity.set(e, _cap); |
| 243 | 247 |
else |
| 244 | 248 |
capacity.set(e, infty); |
| 245 | 249 |
} |
| 246 | 250 |
else {
|
| 247 | 251 |
is >> i >> j; |
| 248 | 252 |
getline(is, str); |
| 249 | 253 |
g.addArc(nodes[i], nodes[j]); |
| 250 | 254 |
} |
| 251 | 255 |
break; |
| 252 | 256 |
} |
| 253 | 257 |
} |
| 254 | 258 |
} |
| 255 | 259 |
|
| 256 |
/// DIMACS maximum flow reader function. |
|
| 260 |
/// \brief DIMACS maximum flow reader function. |
|
| 257 | 261 |
/// |
| 258 | 262 |
/// This function reads a maximum flow instance from DIMACS format, |
| 259 | 263 |
/// i.e. from a DIMACS file having a line starting with |
| 260 | 264 |
/// \code |
| 261 | 265 |
/// p max |
| 262 | 266 |
/// \endcode |
| 263 | 267 |
/// At the beginning, \c g is cleared by \c g.clear(). The arc |
| 264 | 268 |
/// capacities are written to the \c capacity arc map and \c s and |
| 265 | 269 |
/// \c t are set to the source and the target nodes. |
| 266 | 270 |
/// |
| 267 | 271 |
/// If the capacity of an arc is negative, it will |
| 268 | 272 |
/// be set to "infinite" instead. The actual value of "infinite" is |
| 269 | 273 |
/// contolled by the \c infty parameter. If it is 0 (the default value), |
| 270 | 274 |
/// \c std::numeric_limits<Capacity>::infinity() will be used if available, |
| 271 | 275 |
/// \c std::numeric_limits<Capacity>::max() otherwise. If \c infty is set to |
| 272 | 276 |
/// a non-zero value, that value will be used as "infinite". |
| 273 | 277 |
/// |
| 274 | 278 |
/// If the file type was previously evaluated by dimacsType(), then |
| 275 | 279 |
/// the descriptor struct should be given by the \c dest parameter. |
| 276 | 280 |
template<typename Digraph, typename CapacityMap> |
| 277 | 281 |
void readDimacsMax(std::istream& is, |
| 278 | 282 |
Digraph &g, |
| 279 | 283 |
CapacityMap& capacity, |
| 280 | 284 |
typename Digraph::Node &s, |
| 281 | 285 |
typename Digraph::Node &t, |
| 282 | 286 |
typename CapacityMap::Value infty = 0, |
| 283 | 287 |
DimacsDescriptor desc=DimacsDescriptor()) {
|
| 284 | 288 |
if(desc.type==DimacsDescriptor::NONE) desc=dimacsType(is); |
| 285 | 289 |
if(desc.type!=DimacsDescriptor::MAX) |
| 286 | 290 |
throw FormatError("Problem type mismatch");
|
| 287 | 291 |
_readDimacs(is,g,capacity,s,t,infty,desc); |
| 288 | 292 |
} |
| 289 | 293 |
|
| 290 |
/// DIMACS shortest path reader function. |
|
| 294 |
/// \brief DIMACS shortest path reader function. |
|
| 291 | 295 |
/// |
| 292 | 296 |
/// This function reads a shortest path instance from DIMACS format, |
| 293 | 297 |
/// i.e. from a DIMACS file having a line starting with |
| 294 | 298 |
/// \code |
| 295 | 299 |
/// p sp |
| 296 | 300 |
/// \endcode |
| 297 | 301 |
/// At the beginning, \c g is cleared by \c g.clear(). The arc |
| 298 | 302 |
/// lengths are written to the \c length arc map and \c s is set to the |
| 299 | 303 |
/// source node. |
| 300 | 304 |
/// |
| 301 | 305 |
/// If the file type was previously evaluated by dimacsType(), then |
| 302 | 306 |
/// the descriptor struct should be given by the \c dest parameter. |
| 303 | 307 |
template<typename Digraph, typename LengthMap> |
| 304 | 308 |
void readDimacsSp(std::istream& is, |
| 305 | 309 |
Digraph &g, |
| 306 | 310 |
LengthMap& length, |
| 307 | 311 |
typename Digraph::Node &s, |
| 308 | 312 |
DimacsDescriptor desc=DimacsDescriptor()) {
|
| 309 | 313 |
typename Digraph::Node t; |
| 310 | 314 |
if(desc.type==DimacsDescriptor::NONE) desc=dimacsType(is); |
| 311 | 315 |
if(desc.type!=DimacsDescriptor::SP) |
| 312 | 316 |
throw FormatError("Problem type mismatch");
|
| 313 | 317 |
_readDimacs(is, g, length, s, t, 0, desc); |
| 314 | 318 |
} |
| 315 | 319 |
|
| 316 |
/// DIMACS capacitated digraph reader function. |
|
| 320 |
/// \brief DIMACS capacitated digraph reader function. |
|
| 317 | 321 |
/// |
| 318 | 322 |
/// This function reads an arc capacitated digraph instance from |
| 319 | 323 |
/// DIMACS 'max' or 'sp' format. |
| 320 | 324 |
/// At the beginning, \c g is cleared by \c g.clear() |
| 321 | 325 |
/// and the arc capacities/lengths are written to the \c capacity |
| 322 | 326 |
/// arc map. |
| 323 | 327 |
/// |
| 324 | 328 |
/// In case of the 'max' format, if the capacity of an arc is negative, |
| 325 | 329 |
/// it will |
| 326 | 330 |
/// be set to "infinite" instead. The actual value of "infinite" is |
| 327 | 331 |
/// contolled by the \c infty parameter. If it is 0 (the default value), |
| 328 | 332 |
/// \c std::numeric_limits<Capacity>::infinity() will be used if available, |
| 329 | 333 |
/// \c std::numeric_limits<Capacity>::max() otherwise. If \c infty is set to |
| 330 | 334 |
/// a non-zero value, that value will be used as "infinite". |
| 331 | 335 |
/// |
| 332 | 336 |
/// If the file type was previously evaluated by dimacsType(), then |
| 333 | 337 |
/// the descriptor struct should be given by the \c dest parameter. |
| 334 | 338 |
template<typename Digraph, typename CapacityMap> |
| 335 | 339 |
void readDimacsCap(std::istream& is, |
| 336 | 340 |
Digraph &g, |
| 337 | 341 |
CapacityMap& capacity, |
| 338 | 342 |
typename CapacityMap::Value infty = 0, |
| 339 | 343 |
DimacsDescriptor desc=DimacsDescriptor()) {
|
| 340 | 344 |
typename Digraph::Node u,v; |
| 341 | 345 |
if(desc.type==DimacsDescriptor::NONE) desc=dimacsType(is); |
| 342 | 346 |
if(desc.type!=DimacsDescriptor::MAX || desc.type!=DimacsDescriptor::SP) |
| 343 | 347 |
throw FormatError("Problem type mismatch");
|
| 344 | 348 |
_readDimacs(is, g, capacity, u, v, infty, desc); |
| 345 | 349 |
} |
| 346 | 350 |
|
| 347 | 351 |
template<typename Graph> |
| 348 | 352 |
typename enable_if<lemon::UndirectedTagIndicator<Graph>,void>::type |
| 349 | 353 |
_addArcEdge(Graph &g, typename Graph::Node s, typename Graph::Node t, |
| 350 | 354 |
dummy<0> = 0) |
| 351 | 355 |
{
|
| 352 | 356 |
g.addEdge(s,t); |
| 353 | 357 |
} |
| 354 | 358 |
template<typename Graph> |
| 355 | 359 |
typename disable_if<lemon::UndirectedTagIndicator<Graph>,void>::type |
| 356 | 360 |
_addArcEdge(Graph &g, typename Graph::Node s, typename Graph::Node t, |
| 357 | 361 |
dummy<1> = 1) |
| 358 | 362 |
{
|
| 359 | 363 |
g.addArc(s,t); |
| 360 | 364 |
} |
| 361 | 365 |
|
| 362 |
/// DIMACS plain (di)graph reader function. |
|
| 366 |
/// \brief DIMACS plain (di)graph reader function. |
|
| 363 | 367 |
/// |
| 364 |
/// This function reads a (di)graph without any designated nodes and |
|
| 365 |
/// maps from DIMACS format, i.e. from DIMACS files having a line |
|
| 366 |
/// |
|
| 368 |
/// This function reads a plain (di)graph without any designated nodes |
|
| 369 |
/// and maps (e.g. a matching instance) from DIMACS format, i.e. from |
|
| 370 |
/// DIMACS files having a line starting with |
|
| 367 | 371 |
/// \code |
| 368 | 372 |
/// p mat |
| 369 | 373 |
/// \endcode |
| 370 | 374 |
/// At the beginning, \c g is cleared by \c g.clear(). |
| 371 | 375 |
/// |
| 372 | 376 |
/// If the file type was previously evaluated by dimacsType(), then |
| 373 | 377 |
/// the descriptor struct should be given by the \c dest parameter. |
| 374 | 378 |
template<typename Graph> |
| 375 | 379 |
void readDimacsMat(std::istream& is, Graph &g, |
| 376 | 380 |
DimacsDescriptor desc=DimacsDescriptor()) |
| 377 | 381 |
{
|
| 378 | 382 |
if(desc.type==DimacsDescriptor::NONE) desc=dimacsType(is); |
| 379 | 383 |
if(desc.type!=DimacsDescriptor::MAT) |
| 380 | 384 |
throw FormatError("Problem type mismatch");
|
| 381 | 385 |
|
| 382 | 386 |
g.clear(); |
| 383 | 387 |
std::vector<typename Graph::Node> nodes; |
| 384 | 388 |
char c; |
| 385 | 389 |
int i, j; |
| 386 | 390 |
std::string str; |
| 387 | 391 |
nodes.resize(desc.nodeNum + 1); |
| 388 | 392 |
for (int k = 1; k <= desc.nodeNum; ++k) {
|
| 389 | 393 |
nodes[k] = g.addNode(); |
| 390 | 394 |
} |
| ... | ... |
@@ -55,65 +55,65 @@ |
| 55 | 55 |
public: |
| 56 | 56 |
|
| 57 | 57 |
typedef Item Key; |
| 58 | 58 |
typedef int Value; |
| 59 | 59 |
|
| 60 | 60 |
private: |
| 61 | 61 |
|
| 62 | 62 |
typedef Item *Vit; |
| 63 | 63 |
typedef typename ItemSetTraits<GR,Item>::template Map<Vit>::Type VitMap; |
| 64 | 64 |
typedef typename ItemSetTraits<GR,Item>::template Map<int>::Type IntMap; |
| 65 | 65 |
|
| 66 | 66 |
const GR &_g; |
| 67 | 67 |
int _max_level; |
| 68 | 68 |
int _item_num; |
| 69 | 69 |
VitMap _where; |
| 70 | 70 |
IntMap _level; |
| 71 | 71 |
std::vector<Item> _items; |
| 72 | 72 |
std::vector<Vit> _first; |
| 73 | 73 |
std::vector<Vit> _last_active; |
| 74 | 74 |
|
| 75 | 75 |
int _highest_active; |
| 76 | 76 |
|
| 77 | 77 |
void copy(Item i, Vit p) |
| 78 | 78 |
{
|
| 79 |
_where |
|
| 79 |
_where[*p=i] = p; |
|
| 80 | 80 |
} |
| 81 | 81 |
void copy(Vit s, Vit p) |
| 82 | 82 |
{
|
| 83 | 83 |
if(s!=p) |
| 84 | 84 |
{
|
| 85 | 85 |
Item i=*s; |
| 86 | 86 |
*p=i; |
| 87 |
_where |
|
| 87 |
_where[i] = p; |
|
| 88 | 88 |
} |
| 89 | 89 |
} |
| 90 | 90 |
void swap(Vit i, Vit j) |
| 91 | 91 |
{
|
| 92 | 92 |
Item ti=*i; |
| 93 | 93 |
Vit ct = _where[ti]; |
| 94 |
_where.set(ti,_where[*i=*j]); |
|
| 95 |
_where.set(*j,ct); |
|
| 94 |
_where[ti] = _where[*i=*j]; |
|
| 95 |
_where[*j] = ct; |
|
| 96 | 96 |
*j=ti; |
| 97 | 97 |
} |
| 98 | 98 |
|
| 99 | 99 |
public: |
| 100 | 100 |
|
| 101 | 101 |
///Constructor with given maximum level. |
| 102 | 102 |
|
| 103 | 103 |
///Constructor with given maximum level. |
| 104 | 104 |
/// |
| 105 | 105 |
///\param graph The underlying graph. |
| 106 | 106 |
///\param max_level The maximum allowed level. |
| 107 | 107 |
///Set the range of the possible labels to <tt>[0..max_level]</tt>. |
| 108 | 108 |
Elevator(const GR &graph,int max_level) : |
| 109 | 109 |
_g(graph), |
| 110 | 110 |
_max_level(max_level), |
| 111 | 111 |
_item_num(_max_level), |
| 112 | 112 |
_where(graph), |
| 113 | 113 |
_level(graph,0), |
| 114 | 114 |
_items(_max_level), |
| 115 | 115 |
_first(_max_level+2), |
| 116 | 116 |
_last_active(_max_level+2), |
| 117 | 117 |
_highest_active(-1) {}
|
| 118 | 118 |
///Constructor. |
| 119 | 119 |
|
| ... | ... |
@@ -205,266 +205,266 @@ |
| 205 | 205 |
|
| 206 | 206 |
///Return a highest level active item or INVALID if there is no active |
| 207 | 207 |
///item. |
| 208 | 208 |
Item highestActive() const |
| 209 | 209 |
{
|
| 210 | 210 |
return _highest_active>=0?*_last_active[_highest_active]:INVALID; |
| 211 | 211 |
} |
| 212 | 212 |
|
| 213 | 213 |
///Return the highest active level. |
| 214 | 214 |
|
| 215 | 215 |
///Return the level of the highest active item or -1 if there is no active |
| 216 | 216 |
///item. |
| 217 | 217 |
int highestActiveLevel() const |
| 218 | 218 |
{
|
| 219 | 219 |
return _highest_active; |
| 220 | 220 |
} |
| 221 | 221 |
|
| 222 | 222 |
///Lift the highest active item by one. |
| 223 | 223 |
|
| 224 | 224 |
///Lift the item returned by highestActive() by one. |
| 225 | 225 |
/// |
| 226 | 226 |
void liftHighestActive() |
| 227 | 227 |
{
|
| 228 | 228 |
Item it = *_last_active[_highest_active]; |
| 229 |
|
|
| 229 |
++_level[it]; |
|
| 230 | 230 |
swap(_last_active[_highest_active]--,_last_active[_highest_active+1]); |
| 231 | 231 |
--_first[++_highest_active]; |
| 232 | 232 |
} |
| 233 | 233 |
|
| 234 | 234 |
///Lift the highest active item to the given level. |
| 235 | 235 |
|
| 236 | 236 |
///Lift the item returned by highestActive() to level \c new_level. |
| 237 | 237 |
/// |
| 238 | 238 |
///\warning \c new_level must be strictly higher |
| 239 | 239 |
///than the current level. |
| 240 | 240 |
/// |
| 241 | 241 |
void liftHighestActive(int new_level) |
| 242 | 242 |
{
|
| 243 | 243 |
const Item li = *_last_active[_highest_active]; |
| 244 | 244 |
|
| 245 | 245 |
copy(--_first[_highest_active+1],_last_active[_highest_active]--); |
| 246 | 246 |
for(int l=_highest_active+1;l<new_level;l++) |
| 247 | 247 |
{
|
| 248 | 248 |
copy(--_first[l+1],_first[l]); |
| 249 | 249 |
--_last_active[l]; |
| 250 | 250 |
} |
| 251 | 251 |
copy(li,_first[new_level]); |
| 252 |
_level |
|
| 252 |
_level[li] = new_level; |
|
| 253 | 253 |
_highest_active=new_level; |
| 254 | 254 |
} |
| 255 | 255 |
|
| 256 | 256 |
///Lift the highest active item to the top level. |
| 257 | 257 |
|
| 258 | 258 |
///Lift the item returned by highestActive() to the top level and |
| 259 | 259 |
///deactivate it. |
| 260 | 260 |
void liftHighestActiveToTop() |
| 261 | 261 |
{
|
| 262 | 262 |
const Item li = *_last_active[_highest_active]; |
| 263 | 263 |
|
| 264 | 264 |
copy(--_first[_highest_active+1],_last_active[_highest_active]--); |
| 265 | 265 |
for(int l=_highest_active+1;l<_max_level;l++) |
| 266 | 266 |
{
|
| 267 | 267 |
copy(--_first[l+1],_first[l]); |
| 268 | 268 |
--_last_active[l]; |
| 269 | 269 |
} |
| 270 | 270 |
copy(li,_first[_max_level]); |
| 271 | 271 |
--_last_active[_max_level]; |
| 272 |
_level |
|
| 272 |
_level[li] = _max_level; |
|
| 273 | 273 |
|
| 274 | 274 |
while(_highest_active>=0 && |
| 275 | 275 |
_last_active[_highest_active]<_first[_highest_active]) |
| 276 | 276 |
_highest_active--; |
| 277 | 277 |
} |
| 278 | 278 |
|
| 279 | 279 |
///@} |
| 280 | 280 |
|
| 281 | 281 |
///\name Active Item on Certain Level |
| 282 | 282 |
///Functions for working with the active items. |
| 283 | 283 |
|
| 284 | 284 |
///@{
|
| 285 | 285 |
|
| 286 | 286 |
///Return an active item on level \c l. |
| 287 | 287 |
|
| 288 | 288 |
///Return an active item on level \c l or \ref INVALID if there is no such |
| 289 | 289 |
///an item. (\c l must be from the range [0...\c max_level]. |
| 290 | 290 |
Item activeOn(int l) const |
| 291 | 291 |
{
|
| 292 | 292 |
return _last_active[l]>=_first[l]?*_last_active[l]:INVALID; |
| 293 | 293 |
} |
| 294 | 294 |
|
| 295 | 295 |
///Lift the active item returned by \c activeOn(level) by one. |
| 296 | 296 |
|
| 297 | 297 |
///Lift the active item returned by \ref activeOn() "activeOn(level)" |
| 298 | 298 |
///by one. |
| 299 | 299 |
Item liftActiveOn(int level) |
| 300 | 300 |
{
|
| 301 | 301 |
Item it =*_last_active[level]; |
| 302 |
|
|
| 302 |
++_level[it]; |
|
| 303 | 303 |
swap(_last_active[level]--, --_first[level+1]); |
| 304 | 304 |
if (level+1>_highest_active) ++_highest_active; |
| 305 | 305 |
} |
| 306 | 306 |
|
| 307 | 307 |
///Lift the active item returned by \c activeOn(level) to the given level. |
| 308 | 308 |
|
| 309 | 309 |
///Lift the active item returned by \ref activeOn() "activeOn(level)" |
| 310 | 310 |
///to the given level. |
| 311 | 311 |
void liftActiveOn(int level, int new_level) |
| 312 | 312 |
{
|
| 313 | 313 |
const Item ai = *_last_active[level]; |
| 314 | 314 |
|
| 315 | 315 |
copy(--_first[level+1], _last_active[level]--); |
| 316 | 316 |
for(int l=level+1;l<new_level;l++) |
| 317 | 317 |
{
|
| 318 | 318 |
copy(_last_active[l],_first[l]); |
| 319 | 319 |
copy(--_first[l+1], _last_active[l]--); |
| 320 | 320 |
} |
| 321 | 321 |
copy(ai,_first[new_level]); |
| 322 |
_level |
|
| 322 |
_level[ai] = new_level; |
|
| 323 | 323 |
if (new_level>_highest_active) _highest_active=new_level; |
| 324 | 324 |
} |
| 325 | 325 |
|
| 326 | 326 |
///Lift the active item returned by \c activeOn(level) to the top level. |
| 327 | 327 |
|
| 328 | 328 |
///Lift the active item returned by \ref activeOn() "activeOn(level)" |
| 329 | 329 |
///to the top level and deactivate it. |
| 330 | 330 |
void liftActiveToTop(int level) |
| 331 | 331 |
{
|
| 332 | 332 |
const Item ai = *_last_active[level]; |
| 333 | 333 |
|
| 334 | 334 |
copy(--_first[level+1],_last_active[level]--); |
| 335 | 335 |
for(int l=level+1;l<_max_level;l++) |
| 336 | 336 |
{
|
| 337 | 337 |
copy(_last_active[l],_first[l]); |
| 338 | 338 |
copy(--_first[l+1], _last_active[l]--); |
| 339 | 339 |
} |
| 340 | 340 |
copy(ai,_first[_max_level]); |
| 341 | 341 |
--_last_active[_max_level]; |
| 342 |
_level |
|
| 342 |
_level[ai] = _max_level; |
|
| 343 | 343 |
|
| 344 | 344 |
if (_highest_active==level) {
|
| 345 | 345 |
while(_highest_active>=0 && |
| 346 | 346 |
_last_active[_highest_active]<_first[_highest_active]) |
| 347 | 347 |
_highest_active--; |
| 348 | 348 |
} |
| 349 | 349 |
} |
| 350 | 350 |
|
| 351 | 351 |
///@} |
| 352 | 352 |
|
| 353 | 353 |
///Lift an active item to a higher level. |
| 354 | 354 |
|
| 355 | 355 |
///Lift an active item to a higher level. |
| 356 | 356 |
///\param i The item to be lifted. It must be active. |
| 357 | 357 |
///\param new_level The new level of \c i. It must be strictly higher |
| 358 | 358 |
///than the current level. |
| 359 | 359 |
/// |
| 360 | 360 |
void lift(Item i, int new_level) |
| 361 | 361 |
{
|
| 362 | 362 |
const int lo = _level[i]; |
| 363 | 363 |
const Vit w = _where[i]; |
| 364 | 364 |
|
| 365 | 365 |
copy(_last_active[lo],w); |
| 366 | 366 |
copy(--_first[lo+1],_last_active[lo]--); |
| 367 | 367 |
for(int l=lo+1;l<new_level;l++) |
| 368 | 368 |
{
|
| 369 | 369 |
copy(_last_active[l],_first[l]); |
| 370 | 370 |
copy(--_first[l+1],_last_active[l]--); |
| 371 | 371 |
} |
| 372 | 372 |
copy(i,_first[new_level]); |
| 373 |
_level |
|
| 373 |
_level[i] = new_level; |
|
| 374 | 374 |
if(new_level>_highest_active) _highest_active=new_level; |
| 375 | 375 |
} |
| 376 | 376 |
|
| 377 | 377 |
///Move an inactive item to the top but one level (in a dirty way). |
| 378 | 378 |
|
| 379 | 379 |
///This function moves an inactive item from the top level to the top |
| 380 | 380 |
///but one level (in a dirty way). |
| 381 | 381 |
///\warning It makes the underlying datastructure corrupt, so use it |
| 382 | 382 |
///only if you really know what it is for. |
| 383 | 383 |
///\pre The item is on the top level. |
| 384 | 384 |
void dirtyTopButOne(Item i) {
|
| 385 |
_level |
|
| 385 |
_level[i] = _max_level - 1; |
|
| 386 | 386 |
} |
| 387 | 387 |
|
| 388 | 388 |
///Lift all items on and above the given level to the top level. |
| 389 | 389 |
|
| 390 | 390 |
///This function lifts all items on and above level \c l to the top |
| 391 | 391 |
///level and deactivates them. |
| 392 | 392 |
void liftToTop(int l) |
| 393 | 393 |
{
|
| 394 | 394 |
const Vit f=_first[l]; |
| 395 | 395 |
const Vit tl=_first[_max_level]; |
| 396 | 396 |
for(Vit i=f;i!=tl;++i) |
| 397 |
_level |
|
| 397 |
_level[*i] = _max_level; |
|
| 398 | 398 |
for(int i=l;i<=_max_level;i++) |
| 399 | 399 |
{
|
| 400 | 400 |
_first[i]=f; |
| 401 | 401 |
_last_active[i]=f-1; |
| 402 | 402 |
} |
| 403 | 403 |
for(_highest_active=l-1; |
| 404 | 404 |
_highest_active>=0 && |
| 405 | 405 |
_last_active[_highest_active]<_first[_highest_active]; |
| 406 | 406 |
_highest_active--) ; |
| 407 | 407 |
} |
| 408 | 408 |
|
| 409 | 409 |
private: |
| 410 | 410 |
int _init_lev; |
| 411 | 411 |
Vit _init_num; |
| 412 | 412 |
|
| 413 | 413 |
public: |
| 414 | 414 |
|
| 415 | 415 |
///\name Initialization |
| 416 | 416 |
///Using these functions you can initialize the levels of the items. |
| 417 | 417 |
///\n |
| 418 | 418 |
///The initialization must be started with calling \c initStart(). |
| 419 | 419 |
///Then the items should be listed level by level starting with the |
| 420 | 420 |
///lowest one (level 0) using \c initAddItem() and \c initNewLevel(). |
| 421 | 421 |
///Finally \c initFinish() must be called. |
| 422 | 422 |
///The items not listed are put on the highest level. |
| 423 | 423 |
///@{
|
| 424 | 424 |
|
| 425 | 425 |
///Start the initialization process. |
| 426 | 426 |
void initStart() |
| 427 | 427 |
{
|
| 428 | 428 |
_init_lev=0; |
| 429 | 429 |
_init_num=&_items[0]; |
| 430 | 430 |
_first[0]=&_items[0]; |
| 431 | 431 |
_last_active[0]=&_items[0]-1; |
| 432 | 432 |
Vit n=&_items[0]; |
| 433 | 433 |
for(typename ItemSetTraits<GR,Item>::ItemIt i(_g);i!=INVALID;++i) |
| 434 | 434 |
{
|
| 435 | 435 |
*n=i; |
| 436 |
_where.set(i,n); |
|
| 437 |
_level.set(i,_max_level); |
|
| 436 |
_where[i] = n; |
|
| 437 |
_level[i] = _max_level; |
|
| 438 | 438 |
++n; |
| 439 | 439 |
} |
| 440 | 440 |
} |
| 441 | 441 |
|
| 442 | 442 |
///Add an item to the current level. |
| 443 | 443 |
void initAddItem(Item i) |
| 444 | 444 |
{
|
| 445 | 445 |
swap(_where[i],_init_num); |
| 446 |
_level |
|
| 446 |
_level[i] = _init_lev; |
|
| 447 | 447 |
++_init_num; |
| 448 | 448 |
} |
| 449 | 449 |
|
| 450 | 450 |
///Start a new level. |
| 451 | 451 |
|
| 452 | 452 |
///Start a new level. |
| 453 | 453 |
///It shouldn't be used before the items on level 0 are listed. |
| 454 | 454 |
void initNewLevel() |
| 455 | 455 |
{
|
| 456 | 456 |
_init_lev++; |
| 457 | 457 |
_first[_init_lev]=_init_num; |
| 458 | 458 |
_last_active[_init_lev]=_init_num-1; |
| 459 | 459 |
} |
| 460 | 460 |
|
| 461 | 461 |
///Finalize the initialization process. |
| 462 | 462 |
void initFinish() |
| 463 | 463 |
{
|
| 464 | 464 |
for(_init_lev++;_init_lev<=_max_level;_init_lev++) |
| 465 | 465 |
{
|
| 466 | 466 |
_first[_init_lev]=_init_num; |
| 467 | 467 |
_last_active[_init_lev]=_init_num-1; |
| 468 | 468 |
} |
| 469 | 469 |
_first[_max_level+1]=&_items[0]+_item_num; |
| 470 | 470 |
_last_active[_max_level+1]=&_items[0]+_item_num-1; |
| ... | ... |
@@ -530,93 +530,93 @@ |
| 530 | 530 |
_first(_max_level + 1), _last(_max_level + 1), |
| 531 | 531 |
_prev(graph), _next(graph), |
| 532 | 532 |
_highest_active(-1), _level(graph), _active(graph) {}
|
| 533 | 533 |
|
| 534 | 534 |
///Constructor. |
| 535 | 535 |
|
| 536 | 536 |
///Constructor. |
| 537 | 537 |
/// |
| 538 | 538 |
///\param graph The underlying graph. |
| 539 | 539 |
///Set the range of the possible labels to <tt>[0..max_level]</tt>, |
| 540 | 540 |
///where \c max_level is equal to the number of labeled items in the graph. |
| 541 | 541 |
LinkedElevator(const GR& graph) |
| 542 | 542 |
: _graph(graph), _max_level(countItems<GR, Item>(graph)), |
| 543 | 543 |
_item_num(_max_level), |
| 544 | 544 |
_first(_max_level + 1), _last(_max_level + 1), |
| 545 | 545 |
_prev(graph, INVALID), _next(graph, INVALID), |
| 546 | 546 |
_highest_active(-1), _level(graph), _active(graph) {}
|
| 547 | 547 |
|
| 548 | 548 |
|
| 549 | 549 |
///Activate item \c i. |
| 550 | 550 |
|
| 551 | 551 |
///Activate item \c i. |
| 552 | 552 |
///\pre Item \c i shouldn't be active before. |
| 553 | 553 |
void activate(Item i) {
|
| 554 |
_active |
|
| 554 |
_active[i] = true; |
|
| 555 | 555 |
|
| 556 | 556 |
int level = _level[i]; |
| 557 | 557 |
if (level > _highest_active) {
|
| 558 | 558 |
_highest_active = level; |
| 559 | 559 |
} |
| 560 | 560 |
|
| 561 | 561 |
if (_prev[i] == INVALID || _active[_prev[i]]) return; |
| 562 | 562 |
//unlace |
| 563 |
_next |
|
| 563 |
_next[_prev[i]] = _next[i]; |
|
| 564 | 564 |
if (_next[i] != INVALID) {
|
| 565 |
_prev |
|
| 565 |
_prev[_next[i]] = _prev[i]; |
|
| 566 | 566 |
} else {
|
| 567 | 567 |
_last[level] = _prev[i]; |
| 568 | 568 |
} |
| 569 | 569 |
//lace |
| 570 |
_next.set(i, _first[level]); |
|
| 571 |
_prev.set(_first[level], i); |
|
| 572 |
|
|
| 570 |
_next[i] = _first[level]; |
|
| 571 |
_prev[_first[level]] = i; |
|
| 572 |
_prev[i] = INVALID; |
|
| 573 | 573 |
_first[level] = i; |
| 574 | 574 |
|
| 575 | 575 |
} |
| 576 | 576 |
|
| 577 | 577 |
///Deactivate item \c i. |
| 578 | 578 |
|
| 579 | 579 |
///Deactivate item \c i. |
| 580 | 580 |
///\pre Item \c i must be active before. |
| 581 | 581 |
void deactivate(Item i) {
|
| 582 |
_active |
|
| 582 |
_active[i] = false; |
|
| 583 | 583 |
int level = _level[i]; |
| 584 | 584 |
|
| 585 | 585 |
if (_next[i] == INVALID || !_active[_next[i]]) |
| 586 | 586 |
goto find_highest_level; |
| 587 | 587 |
|
| 588 | 588 |
//unlace |
| 589 |
_prev |
|
| 589 |
_prev[_next[i]] = _prev[i]; |
|
| 590 | 590 |
if (_prev[i] != INVALID) {
|
| 591 |
_next |
|
| 591 |
_next[_prev[i]] = _next[i]; |
|
| 592 | 592 |
} else {
|
| 593 | 593 |
_first[_level[i]] = _next[i]; |
| 594 | 594 |
} |
| 595 | 595 |
//lace |
| 596 |
_prev.set(i, _last[level]); |
|
| 597 |
_next.set(_last[level], i); |
|
| 598 |
|
|
| 596 |
_prev[i] = _last[level]; |
|
| 597 |
_next[_last[level]] = i; |
|
| 598 |
_next[i] = INVALID; |
|
| 599 | 599 |
_last[level] = i; |
| 600 | 600 |
|
| 601 | 601 |
find_highest_level: |
| 602 | 602 |
if (level == _highest_active) {
|
| 603 | 603 |
while (_highest_active >= 0 && activeFree(_highest_active)) |
| 604 | 604 |
--_highest_active; |
| 605 | 605 |
} |
| 606 | 606 |
} |
| 607 | 607 |
|
| 608 | 608 |
///Query whether item \c i is active |
| 609 | 609 |
bool active(Item i) const { return _active[i]; }
|
| 610 | 610 |
|
| 611 | 611 |
///Return the level of item \c i. |
| 612 | 612 |
int operator[](Item i) const { return _level[i]; }
|
| 613 | 613 |
|
| 614 | 614 |
///Return the number of items on level \c l. |
| 615 | 615 |
int onLevel(int l) const {
|
| 616 | 616 |
int num = 0; |
| 617 | 617 |
Item n = _first[l]; |
| 618 | 618 |
while (n != INVALID) {
|
| 619 | 619 |
++num; |
| 620 | 620 |
n = _next[n]; |
| 621 | 621 |
} |
| 622 | 622 |
return num; |
| ... | ... |
@@ -664,317 +664,317 @@ |
| 664 | 664 |
|
| 665 | 665 |
///Return a highest level active item. |
| 666 | 666 |
|
| 667 | 667 |
///Return a highest level active item or INVALID if there is no active |
| 668 | 668 |
///item. |
| 669 | 669 |
Item highestActive() const {
|
| 670 | 670 |
return _highest_active >= 0 ? _first[_highest_active] : INVALID; |
| 671 | 671 |
} |
| 672 | 672 |
|
| 673 | 673 |
///Return the highest active level. |
| 674 | 674 |
|
| 675 | 675 |
///Return the level of the highest active item or -1 if there is no active |
| 676 | 676 |
///item. |
| 677 | 677 |
int highestActiveLevel() const {
|
| 678 | 678 |
return _highest_active; |
| 679 | 679 |
} |
| 680 | 680 |
|
| 681 | 681 |
///Lift the highest active item by one. |
| 682 | 682 |
|
| 683 | 683 |
///Lift the item returned by highestActive() by one. |
| 684 | 684 |
/// |
| 685 | 685 |
void liftHighestActive() {
|
| 686 | 686 |
Item i = _first[_highest_active]; |
| 687 | 687 |
if (_next[i] != INVALID) {
|
| 688 |
_prev |
|
| 688 |
_prev[_next[i]] = INVALID; |
|
| 689 | 689 |
_first[_highest_active] = _next[i]; |
| 690 | 690 |
} else {
|
| 691 | 691 |
_first[_highest_active] = INVALID; |
| 692 | 692 |
_last[_highest_active] = INVALID; |
| 693 | 693 |
} |
| 694 |
_level |
|
| 694 |
_level[i] = ++_highest_active; |
|
| 695 | 695 |
if (_first[_highest_active] == INVALID) {
|
| 696 | 696 |
_first[_highest_active] = i; |
| 697 | 697 |
_last[_highest_active] = i; |
| 698 |
_prev.set(i, INVALID); |
|
| 699 |
_next.set(i, INVALID); |
|
| 698 |
_prev[i] = INVALID; |
|
| 699 |
_next[i] = INVALID; |
|
| 700 | 700 |
} else {
|
| 701 |
_prev.set(_first[_highest_active], i); |
|
| 702 |
_next.set(i, _first[_highest_active]); |
|
| 701 |
_prev[_first[_highest_active]] = i; |
|
| 702 |
_next[i] = _first[_highest_active]; |
|
| 703 | 703 |
_first[_highest_active] = i; |
| 704 | 704 |
} |
| 705 | 705 |
} |
| 706 | 706 |
|
| 707 | 707 |
///Lift the highest active item to the given level. |
| 708 | 708 |
|
| 709 | 709 |
///Lift the item returned by highestActive() to level \c new_level. |
| 710 | 710 |
/// |
| 711 | 711 |
///\warning \c new_level must be strictly higher |
| 712 | 712 |
///than the current level. |
| 713 | 713 |
/// |
| 714 | 714 |
void liftHighestActive(int new_level) {
|
| 715 | 715 |
Item i = _first[_highest_active]; |
| 716 | 716 |
if (_next[i] != INVALID) {
|
| 717 |
_prev |
|
| 717 |
_prev[_next[i]] = INVALID; |
|
| 718 | 718 |
_first[_highest_active] = _next[i]; |
| 719 | 719 |
} else {
|
| 720 | 720 |
_first[_highest_active] = INVALID; |
| 721 | 721 |
_last[_highest_active] = INVALID; |
| 722 | 722 |
} |
| 723 |
_level |
|
| 723 |
_level[i] = _highest_active = new_level; |
|
| 724 | 724 |
if (_first[_highest_active] == INVALID) {
|
| 725 | 725 |
_first[_highest_active] = _last[_highest_active] = i; |
| 726 |
_prev.set(i, INVALID); |
|
| 727 |
_next.set(i, INVALID); |
|
| 726 |
_prev[i] = INVALID; |
|
| 727 |
_next[i] = INVALID; |
|
| 728 | 728 |
} else {
|
| 729 |
_prev.set(_first[_highest_active], i); |
|
| 730 |
_next.set(i, _first[_highest_active]); |
|
| 729 |
_prev[_first[_highest_active]] = i; |
|
| 730 |
_next[i] = _first[_highest_active]; |
|
| 731 | 731 |
_first[_highest_active] = i; |
| 732 | 732 |
} |
| 733 | 733 |
} |
| 734 | 734 |
|
| 735 | 735 |
///Lift the highest active item to the top level. |
| 736 | 736 |
|
| 737 | 737 |
///Lift the item returned by highestActive() to the top level and |
| 738 | 738 |
///deactivate it. |
| 739 | 739 |
void liftHighestActiveToTop() {
|
| 740 | 740 |
Item i = _first[_highest_active]; |
| 741 |
_level |
|
| 741 |
_level[i] = _max_level; |
|
| 742 | 742 |
if (_next[i] != INVALID) {
|
| 743 |
_prev |
|
| 743 |
_prev[_next[i]] = INVALID; |
|
| 744 | 744 |
_first[_highest_active] = _next[i]; |
| 745 | 745 |
} else {
|
| 746 | 746 |
_first[_highest_active] = INVALID; |
| 747 | 747 |
_last[_highest_active] = INVALID; |
| 748 | 748 |
} |
| 749 | 749 |
while (_highest_active >= 0 && activeFree(_highest_active)) |
| 750 | 750 |
--_highest_active; |
| 751 | 751 |
} |
| 752 | 752 |
|
| 753 | 753 |
///@} |
| 754 | 754 |
|
| 755 | 755 |
///\name Active Item on Certain Level |
| 756 | 756 |
///Functions for working with the active items. |
| 757 | 757 |
|
| 758 | 758 |
///@{
|
| 759 | 759 |
|
| 760 | 760 |
///Return an active item on level \c l. |
| 761 | 761 |
|
| 762 | 762 |
///Return an active item on level \c l or \ref INVALID if there is no such |
| 763 | 763 |
///an item. (\c l must be from the range [0...\c max_level]. |
| 764 | 764 |
Item activeOn(int l) const |
| 765 | 765 |
{
|
| 766 | 766 |
return _active[_first[l]] ? _first[l] : INVALID; |
| 767 | 767 |
} |
| 768 | 768 |
|
| 769 | 769 |
///Lift the active item returned by \c activeOn(l) by one. |
| 770 | 770 |
|
| 771 | 771 |
///Lift the active item returned by \ref activeOn() "activeOn(l)" |
| 772 | 772 |
///by one. |
| 773 | 773 |
Item liftActiveOn(int l) |
| 774 | 774 |
{
|
| 775 | 775 |
Item i = _first[l]; |
| 776 | 776 |
if (_next[i] != INVALID) {
|
| 777 |
_prev |
|
| 777 |
_prev[_next[i]] = INVALID; |
|
| 778 | 778 |
_first[l] = _next[i]; |
| 779 | 779 |
} else {
|
| 780 | 780 |
_first[l] = INVALID; |
| 781 | 781 |
_last[l] = INVALID; |
| 782 | 782 |
} |
| 783 |
_level |
|
| 783 |
_level[i] = ++l; |
|
| 784 | 784 |
if (_first[l] == INVALID) {
|
| 785 | 785 |
_first[l] = _last[l] = i; |
| 786 |
_prev.set(i, INVALID); |
|
| 787 |
_next.set(i, INVALID); |
|
| 786 |
_prev[i] = INVALID; |
|
| 787 |
_next[i] = INVALID; |
|
| 788 | 788 |
} else {
|
| 789 |
_prev.set(_first[l], i); |
|
| 790 |
_next.set(i, _first[l]); |
|
| 789 |
_prev[_first[l]] = i; |
|
| 790 |
_next[i] = _first[l]; |
|
| 791 | 791 |
_first[l] = i; |
| 792 | 792 |
} |
| 793 | 793 |
if (_highest_active < l) {
|
| 794 | 794 |
_highest_active = l; |
| 795 | 795 |
} |
| 796 | 796 |
} |
| 797 | 797 |
|
| 798 | 798 |
///Lift the active item returned by \c activeOn(l) to the given level. |
| 799 | 799 |
|
| 800 | 800 |
///Lift the active item returned by \ref activeOn() "activeOn(l)" |
| 801 | 801 |
///to the given level. |
| 802 | 802 |
void liftActiveOn(int l, int new_level) |
| 803 | 803 |
{
|
| 804 | 804 |
Item i = _first[l]; |
| 805 | 805 |
if (_next[i] != INVALID) {
|
| 806 |
_prev |
|
| 806 |
_prev[_next[i]] = INVALID; |
|
| 807 | 807 |
_first[l] = _next[i]; |
| 808 | 808 |
} else {
|
| 809 | 809 |
_first[l] = INVALID; |
| 810 | 810 |
_last[l] = INVALID; |
| 811 | 811 |
} |
| 812 |
_level |
|
| 812 |
_level[i] = l = new_level; |
|
| 813 | 813 |
if (_first[l] == INVALID) {
|
| 814 | 814 |
_first[l] = _last[l] = i; |
| 815 |
_prev.set(i, INVALID); |
|
| 816 |
_next.set(i, INVALID); |
|
| 815 |
_prev[i] = INVALID; |
|
| 816 |
_next[i] = INVALID; |
|
| 817 | 817 |
} else {
|
| 818 |
_prev.set(_first[l], i); |
|
| 819 |
_next.set(i, _first[l]); |
|
| 818 |
_prev[_first[l]] = i; |
|
| 819 |
_next[i] = _first[l]; |
|
| 820 | 820 |
_first[l] = i; |
| 821 | 821 |
} |
| 822 | 822 |
if (_highest_active < l) {
|
| 823 | 823 |
_highest_active = l; |
| 824 | 824 |
} |
| 825 | 825 |
} |
| 826 | 826 |
|
| 827 | 827 |
///Lift the active item returned by \c activeOn(l) to the top level. |
| 828 | 828 |
|
| 829 | 829 |
///Lift the active item returned by \ref activeOn() "activeOn(l)" |
| 830 | 830 |
///to the top level and deactivate it. |
| 831 | 831 |
void liftActiveToTop(int l) |
| 832 | 832 |
{
|
| 833 | 833 |
Item i = _first[l]; |
| 834 | 834 |
if (_next[i] != INVALID) {
|
| 835 |
_prev |
|
| 835 |
_prev[_next[i]] = INVALID; |
|
| 836 | 836 |
_first[l] = _next[i]; |
| 837 | 837 |
} else {
|
| 838 | 838 |
_first[l] = INVALID; |
| 839 | 839 |
_last[l] = INVALID; |
| 840 | 840 |
} |
| 841 |
_level |
|
| 841 |
_level[i] = _max_level; |
|
| 842 | 842 |
if (l == _highest_active) {
|
| 843 | 843 |
while (_highest_active >= 0 && activeFree(_highest_active)) |
| 844 | 844 |
--_highest_active; |
| 845 | 845 |
} |
| 846 | 846 |
} |
| 847 | 847 |
|
| 848 | 848 |
///@} |
| 849 | 849 |
|
| 850 | 850 |
/// \brief Lift an active item to a higher level. |
| 851 | 851 |
/// |
| 852 | 852 |
/// Lift an active item to a higher level. |
| 853 | 853 |
/// \param i The item to be lifted. It must be active. |
| 854 | 854 |
/// \param new_level The new level of \c i. It must be strictly higher |
| 855 | 855 |
/// than the current level. |
| 856 | 856 |
/// |
| 857 | 857 |
void lift(Item i, int new_level) {
|
| 858 | 858 |
if (_next[i] != INVALID) {
|
| 859 |
_prev |
|
| 859 |
_prev[_next[i]] = _prev[i]; |
|
| 860 | 860 |
} else {
|
| 861 | 861 |
_last[new_level] = _prev[i]; |
| 862 | 862 |
} |
| 863 | 863 |
if (_prev[i] != INVALID) {
|
| 864 |
_next |
|
| 864 |
_next[_prev[i]] = _next[i]; |
|
| 865 | 865 |
} else {
|
| 866 | 866 |
_first[new_level] = _next[i]; |
| 867 | 867 |
} |
| 868 |
_level |
|
| 868 |
_level[i] = new_level; |
|
| 869 | 869 |
if (_first[new_level] == INVALID) {
|
| 870 | 870 |
_first[new_level] = _last[new_level] = i; |
| 871 |
_prev.set(i, INVALID); |
|
| 872 |
_next.set(i, INVALID); |
|
| 871 |
_prev[i] = INVALID; |
|
| 872 |
_next[i] = INVALID; |
|
| 873 | 873 |
} else {
|
| 874 |
_prev.set(_first[new_level], i); |
|
| 875 |
_next.set(i, _first[new_level]); |
|
| 874 |
_prev[_first[new_level]] = i; |
|
| 875 |
_next[i] = _first[new_level]; |
|
| 876 | 876 |
_first[new_level] = i; |
| 877 | 877 |
} |
| 878 | 878 |
if (_highest_active < new_level) {
|
| 879 | 879 |
_highest_active = new_level; |
| 880 | 880 |
} |
| 881 | 881 |
} |
| 882 | 882 |
|
| 883 | 883 |
///Move an inactive item to the top but one level (in a dirty way). |
| 884 | 884 |
|
| 885 | 885 |
///This function moves an inactive item from the top level to the top |
| 886 | 886 |
///but one level (in a dirty way). |
| 887 | 887 |
///\warning It makes the underlying datastructure corrupt, so use it |
| 888 | 888 |
///only if you really know what it is for. |
| 889 | 889 |
///\pre The item is on the top level. |
| 890 | 890 |
void dirtyTopButOne(Item i) {
|
| 891 |
_level |
|
| 891 |
_level[i] = _max_level - 1; |
|
| 892 | 892 |
} |
| 893 | 893 |
|
| 894 | 894 |
///Lift all items on and above the given level to the top level. |
| 895 | 895 |
|
| 896 | 896 |
///This function lifts all items on and above level \c l to the top |
| 897 | 897 |
///level and deactivates them. |
| 898 | 898 |
void liftToTop(int l) {
|
| 899 | 899 |
for (int i = l + 1; _first[i] != INVALID; ++i) {
|
| 900 | 900 |
Item n = _first[i]; |
| 901 | 901 |
while (n != INVALID) {
|
| 902 |
_level |
|
| 902 |
_level[n] = _max_level; |
|
| 903 | 903 |
n = _next[n]; |
| 904 | 904 |
} |
| 905 | 905 |
_first[i] = INVALID; |
| 906 | 906 |
_last[i] = INVALID; |
| 907 | 907 |
} |
| 908 | 908 |
if (_highest_active > l - 1) {
|
| 909 | 909 |
_highest_active = l - 1; |
| 910 | 910 |
while (_highest_active >= 0 && activeFree(_highest_active)) |
| 911 | 911 |
--_highest_active; |
| 912 | 912 |
} |
| 913 | 913 |
} |
| 914 | 914 |
|
| 915 | 915 |
private: |
| 916 | 916 |
|
| 917 | 917 |
int _init_level; |
| 918 | 918 |
|
| 919 | 919 |
public: |
| 920 | 920 |
|
| 921 | 921 |
///\name Initialization |
| 922 | 922 |
///Using these functions you can initialize the levels of the items. |
| 923 | 923 |
///\n |
| 924 | 924 |
///The initialization must be started with calling \c initStart(). |
| 925 | 925 |
///Then the items should be listed level by level starting with the |
| 926 | 926 |
///lowest one (level 0) using \c initAddItem() and \c initNewLevel(). |
| 927 | 927 |
///Finally \c initFinish() must be called. |
| 928 | 928 |
///The items not listed are put on the highest level. |
| 929 | 929 |
///@{
|
| 930 | 930 |
|
| 931 | 931 |
///Start the initialization process. |
| 932 | 932 |
void initStart() {
|
| 933 | 933 |
|
| 934 | 934 |
for (int i = 0; i <= _max_level; ++i) {
|
| 935 | 935 |
_first[i] = _last[i] = INVALID; |
| 936 | 936 |
} |
| 937 | 937 |
_init_level = 0; |
| 938 | 938 |
for(typename ItemSetTraits<GR,Item>::ItemIt i(_graph); |
| 939 | 939 |
i != INVALID; ++i) {
|
| 940 |
_level.set(i, _max_level); |
|
| 941 |
_active.set(i, false); |
|
| 940 |
_level[i] = _max_level; |
|
| 941 |
_active[i] = false; |
|
| 942 | 942 |
} |
| 943 | 943 |
} |
| 944 | 944 |
|
| 945 | 945 |
///Add an item to the current level. |
| 946 | 946 |
void initAddItem(Item i) {
|
| 947 |
_level |
|
| 947 |
_level[i] = _init_level; |
|
| 948 | 948 |
if (_last[_init_level] == INVALID) {
|
| 949 | 949 |
_first[_init_level] = i; |
| 950 | 950 |
_last[_init_level] = i; |
| 951 |
_prev.set(i, INVALID); |
|
| 952 |
_next.set(i, INVALID); |
|
| 951 |
_prev[i] = INVALID; |
|
| 952 |
_next[i] = INVALID; |
|
| 953 | 953 |
} else {
|
| 954 |
_prev.set(i, _last[_init_level]); |
|
| 955 |
_next.set(i, INVALID); |
|
| 956 |
|
|
| 954 |
_prev[i] = _last[_init_level]; |
|
| 955 |
_next[i] = INVALID; |
|
| 956 |
_next[_last[_init_level]] = i; |
|
| 957 | 957 |
_last[_init_level] = i; |
| 958 | 958 |
} |
| 959 | 959 |
} |
| 960 | 960 |
|
| 961 | 961 |
///Start a new level. |
| 962 | 962 |
|
| 963 | 963 |
///Start a new level. |
| 964 | 964 |
///It shouldn't be used before the items on level 0 are listed. |
| 965 | 965 |
void initNewLevel() {
|
| 966 | 966 |
++_init_level; |
| 967 | 967 |
} |
| 968 | 968 |
|
| 969 | 969 |
///Finalize the initialization process. |
| 970 | 970 |
void initFinish() {
|
| 971 | 971 |
_highest_active = -1; |
| 972 | 972 |
} |
| 973 | 973 |
|
| 974 | 974 |
///@} |
| 975 | 975 |
|
| 976 | 976 |
}; |
| 977 | 977 |
|
| 978 | 978 |
|
| 979 | 979 |
} //END OF NAMESPACE LEMON |
| 980 | 980 |
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