# HG changeset patch
# User alpar
# Date 1138613861 0
# Node ID 92b70deed0c53ab31f3f892a0275115fee9936ba
# Parent  84d87d6024af343d7d412c4eb7bb2258e14a138b
Solve bug #23: Floating versus Integer Coordinates

- BoundingBox values rounds to integer
- The generated .eps rescales if the bounding box were too small otherwise.

diff -r 84d87d6024af -r 92b70deed0c5 demo/graph_to_eps_demo.cc
--- a/demo/graph_to_eps_demo.cc	Mon Jan 30 09:32:52 2006 +0000
+++ b/demo/graph_to_eps_demo.cc	Mon Jan 30 09:37:41 2006 +0000
@@ -79,7 +79,9 @@
   IdMap<ListGraph,Node> id(g);
 
   cout << "Create 'graph_to_eps_demo_out.eps'" << endl;
-  graphToEps(g,"graph_to_eps_demo_out.eps").scale(10).coords(coords).
+  graphToEps(g,"graph_to_eps_demo_out.eps").
+    //scale(10).
+    coords(coords).
     title("Sample .eps figure").
     copyright("(C) 2006 LEMON Project").
     nodeScale(2).nodeSizes(sizes).
@@ -92,7 +94,8 @@
 
 
   cout << "Create 'graph_to_eps_demo_out_arr.eps'" << endl;
-  graphToEps(g,"graph_to_eps_demo_out_arr.eps").scale(10).
+  graphToEps(g,"graph_to_eps_demo_out_arr.eps").
+    //scale(10).
     title("Sample .eps figure (with arrowheads)").
     copyright("(C) 2006 LEMON Project").
     nodeColors(composeMap(colorSet,colors)).
@@ -117,7 +120,8 @@
   e=g.addEdge(n1,n2); ecolors[e]=7; widths[e]=1;
 
   cout << "Create 'graph_to_eps_demo_out_par.eps'" << endl;
-  graphToEps(g,"graph_to_eps_demo_out_par.eps").scale(10).
+  graphToEps(g,"graph_to_eps_demo_out_par.eps").
+    //scale(10).
     title("Sample .eps figure (parallel edges)").
     copyright("(C) 2006 LEMON Project").
     nodeShapes(shapes).
@@ -131,7 +135,8 @@
     run();
   
   cout << "Create 'graph_to_eps_demo_out_par_arr.eps'" << endl;
-  graphToEps(g,"graph_to_eps_demo_out_par_arr.eps").scale(10).
+  graphToEps(g,"graph_to_eps_demo_out_par_arr.eps").
+    //scale(10).
     title("Sample .eps figure (parallel edges and arrowheads)").
     copyright("(C) 2006 LEMON Project").
     nodeScale(2).nodeSizes(sizes).
@@ -172,7 +177,8 @@
   }
   
   cout << "Create 'graph_to_eps_demo_out_colors.eps'" << endl;
-  graphToEps(h,"graph_to_eps_demo_out_colors.eps").scale(60).
+  graphToEps(h,"graph_to_eps_demo_out_colors.eps").
+    //scale(60).
     title("Sample .eps figure (ColorSet demo)").
     copyright("(C) 2006 LEMON Project").
     coords(hcoords).
diff -r 84d87d6024af -r 92b70deed0c5 lemon/graph_to_eps.h
--- a/lemon/graph_to_eps.h	Mon Jan 30 09:32:52 2006 +0000
+++ b/lemon/graph_to_eps.h	Mon Jan 30 09:37:41 2006 +0000
@@ -851,11 +851,17 @@
     
     if(_scaleToA4)
       os <<"%%BoundingBox: 0 0 596 842\n%%DocumentPaperSizes: a4\n";
-    else os << "%%BoundingBox: "
-	    << bb.left()   * _scale - _xBorder << ' '
-	    << bb.bottom() * _scale - _yBorder << ' '
-	    << bb.right()  * _scale + _xBorder << ' '
-	    << bb.top()    * _scale + _yBorder << '\n';
+    else {
+      //Rescale so that BoundingBox won't be neither to big nor too small.
+      while(bb.height()*_scale>1000||bb.width()*_scale>1000) _scale/=10;
+      while(bb.height()*_scale<100||bb.width()*_scale<100) _scale*=10;
+    
+      os << "%%BoundingBox: "
+	 << int(floor(bb.left()   * _scale - _xBorder)) << ' '
+	 << int(floor(bb.bottom() * _scale - _yBorder)) << ' '
+	 << int(ceil(bb.right()  * _scale + _xBorder)) << ' '
+	 << int(ceil(bb.top()    * _scale + _yBorder)) << '\n';
+    }
     
     os << "%%EndComments\n";