alpar@209: /* -*- mode: C++; indent-tabs-mode: nil; -*-
alpar@40:  *
alpar@209:  * This file is a part of LEMON, a generic C++ optimization library.
alpar@40:  *
alpar@40:  * Copyright (C) 2003-2008
alpar@40:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@40:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@40:  *
alpar@40:  * Permission to use, modify and distribute this software is granted
alpar@40:  * provided that this copyright notice appears in all copies. For
alpar@40:  * precise terms see the accompanying LICENSE file.
alpar@40:  *
alpar@40:  * This software is provided "AS IS" with no warranty of any kind,
alpar@40:  * express or implied, and with no claim as to its suitability for any
alpar@40:  * purpose.
alpar@40:  *
alpar@40:  */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup datas Data Structures
kpeter@50: This group describes the several data structures implemented in LEMON.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup graphs Graph Structures
alpar@40: @ingroup datas
alpar@40: \brief Graph structures implemented in LEMON.
alpar@40: 
alpar@209: The implementation of combinatorial algorithms heavily relies on
alpar@209: efficient graph implementations. LEMON offers data structures which are
alpar@209: planned to be easily used in an experimental phase of implementation studies,
alpar@209: and thereafter the program code can be made efficient by small modifications.
alpar@40: 
alpar@40: The most efficient implementation of diverse applications require the
alpar@40: usage of different physical graph implementations. These differences
alpar@40: appear in the size of graph we require to handle, memory or time usage
alpar@40: limitations or in the set of operations through which the graph can be
alpar@40: accessed.  LEMON provides several physical graph structures to meet
alpar@40: the diverging requirements of the possible users.  In order to save on
alpar@40: running time or on memory usage, some structures may fail to provide
kpeter@83: some graph features like arc/edge or node deletion.
alpar@40: 
alpar@40: You are free to use the graph structure that fit your requirements
alpar@40: the best, most graph algorithms and auxiliary data structures can be used
kpeter@318: with any graph structure.
kpeter@318: 
kpeter@318: <b>See also:</b> \ref graph_concepts "Graph Structure Concepts".
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@209: @defgroup maps Maps
alpar@40: @ingroup datas
kpeter@50: \brief Map structures implemented in LEMON.
alpar@40: 
kpeter@50: This group describes the map structures implemented in LEMON.
kpeter@50: 
kpeter@318: LEMON provides several special purpose maps and map adaptors that e.g. combine
alpar@40: new maps from existing ones.
kpeter@318: 
kpeter@318: <b>See also:</b> \ref map_concepts "Map Concepts".
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@209: @defgroup graph_maps Graph Maps
alpar@40: @ingroup maps
kpeter@83: \brief Special graph-related maps.
alpar@40: 
kpeter@50: This group describes maps that are specifically designed to assign
kpeter@83: values to the nodes and arcs of graphs.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: \defgroup map_adaptors Map Adaptors
alpar@40: \ingroup maps
alpar@40: \brief Tools to create new maps from existing ones
alpar@40: 
kpeter@50: This group describes map adaptors that are used to create "implicit"
kpeter@50: maps from other maps.
alpar@40: 
kpeter@83: Most of them are \ref lemon::concepts::ReadMap "read-only maps".
kpeter@83: They can make arithmetic and logical operations between one or two maps
kpeter@83: (negation, shifting, addition, multiplication, logical 'and', 'or',
kpeter@83: 'not' etc.) or e.g. convert a map to another one of different Value type.
alpar@40: 
kpeter@50: The typical usage of this classes is passing implicit maps to
alpar@40: algorithms.  If a function type algorithm is called then the function
alpar@40: type map adaptors can be used comfortable. For example let's see the
kpeter@318: usage of map adaptors with the \c graphToEps() function.
alpar@40: \code
alpar@40:   Color nodeColor(int deg) {
alpar@40:     if (deg >= 2) {
alpar@40:       return Color(0.5, 0.0, 0.5);
alpar@40:     } else if (deg == 1) {
alpar@40:       return Color(1.0, 0.5, 1.0);
alpar@40:     } else {
alpar@40:       return Color(0.0, 0.0, 0.0);
alpar@40:     }
alpar@40:   }
alpar@209: 
kpeter@83:   Digraph::NodeMap<int> degree_map(graph);
alpar@209: 
kpeter@318:   graphToEps(graph, "graph.eps")
alpar@40:     .coords(coords).scaleToA4().undirected()
kpeter@83:     .nodeColors(composeMap(functorToMap(nodeColor), degree_map))
alpar@40:     .run();
alpar@209: \endcode
kpeter@83: The \c functorToMap() function makes an \c int to \c Color map from the
kpeter@318: \c nodeColor() function. The \c composeMap() compose the \c degree_map
kpeter@83: and the previously created map. The composed map is a proper function to
kpeter@83: get the color of each node.
alpar@40: 
alpar@40: The usage with class type algorithms is little bit harder. In this
alpar@40: case the function type map adaptors can not be used, because the
kpeter@50: function map adaptors give back temporary objects.
alpar@40: \code
kpeter@83:   Digraph graph;
kpeter@83: 
kpeter@83:   typedef Digraph::ArcMap<double> DoubleArcMap;
kpeter@83:   DoubleArcMap length(graph);
kpeter@83:   DoubleArcMap speed(graph);
kpeter@83: 
kpeter@83:   typedef DivMap<DoubleArcMap, DoubleArcMap> TimeMap;
alpar@40:   TimeMap time(length, speed);
alpar@209: 
kpeter@83:   Dijkstra<Digraph, TimeMap> dijkstra(graph, time);
alpar@40:   dijkstra.run(source, target);
alpar@40: \endcode
kpeter@83: We have a length map and a maximum speed map on the arcs of a digraph.
kpeter@83: The minimum time to pass the arc can be calculated as the division of
kpeter@83: the two maps which can be done implicitly with the \c DivMap template
alpar@40: class. We use the implicit minimum time map as the length map of the
alpar@40: \c Dijkstra algorithm.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup paths Path Structures
alpar@40: @ingroup datas
alpar@40: \brief Path structures implemented in LEMON.
alpar@40: 
kpeter@50: This group describes the path structures implemented in LEMON.
alpar@40: 
kpeter@50: LEMON provides flexible data structures to work with paths.
kpeter@50: All of them have similar interfaces and they can be copied easily with
kpeter@50: assignment operators and copy constructors. This makes it easy and
alpar@40: efficient to have e.g. the Dijkstra algorithm to store its result in
alpar@40: any kind of path structure.
alpar@40: 
alpar@40: \sa lemon::concepts::Path
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup auxdat Auxiliary Data Structures
alpar@40: @ingroup datas
kpeter@50: \brief Auxiliary data structures implemented in LEMON.
alpar@40: 
kpeter@50: This group describes some data structures implemented in LEMON in
alpar@40: order to make it easier to implement combinatorial algorithms.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup algs Algorithms
alpar@40: \brief This group describes the several algorithms
alpar@40: implemented in LEMON.
alpar@40: 
alpar@40: This group describes the several algorithms
alpar@40: implemented in LEMON.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup search Graph Search
alpar@40: @ingroup algs
kpeter@50: \brief Common graph search algorithms.
alpar@40: 
alpar@209: This group describes the common graph search algorithms like
kpeter@318: Breadth-First Search (BFS) and Depth-First Search (DFS).
alpar@40: */
alpar@40: 
alpar@40: /**
kpeter@318: @defgroup shortest_path Shortest Path Algorithms
alpar@40: @ingroup algs
kpeter@50: \brief Algorithms for finding shortest paths.
alpar@40: 
kpeter@50: This group describes the algorithms for finding shortest paths in graphs.
alpar@40: */
alpar@40: 
alpar@209: /**
kpeter@318: @defgroup spantree Minimum Spanning Tree Algorithms
alpar@40: @ingroup algs
kpeter@50: \brief Algorithms for finding a minimum cost spanning tree in a graph.
alpar@40: 
kpeter@50: This group describes the algorithms for finding a minimum cost spanning
alpar@40: tree in a graph
alpar@40: */
alpar@40: 
alpar@40: @ingroup algs
alpar@40: /**
alpar@209: @defgroup utils Tools and Utilities
kpeter@50: \brief Tools and utilities for programming in LEMON
alpar@40: 
kpeter@50: Tools and utilities for programming in LEMON.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup gutils Basic Graph Utilities
alpar@40: @ingroup utils
kpeter@50: \brief Simple basic graph utilities.
alpar@40: 
alpar@40: This group describes some simple basic graph utilities.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup misc Miscellaneous Tools
alpar@40: @ingroup utils
kpeter@50: \brief Tools for development, debugging and testing.
kpeter@50: 
kpeter@50: This group describes several useful tools for development,
alpar@40: debugging and testing.
alpar@40: */
alpar@40: 
alpar@40: /**
kpeter@318: @defgroup timecount Time Measuring and Counting
alpar@40: @ingroup misc
kpeter@50: \brief Simple tools for measuring the performance of algorithms.
kpeter@50: 
kpeter@50: This group describes simple tools for measuring the performance
alpar@40: of algorithms.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup exceptions Exceptions
alpar@40: @ingroup utils
kpeter@50: \brief Exceptions defined in LEMON.
kpeter@50: 
kpeter@50: This group describes the exceptions defined in LEMON.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup io_group Input-Output
kpeter@50: \brief Graph Input-Output methods
alpar@40: 
alpar@209: This group describes the tools for importing and exporting graphs
kpeter@302: and graph related data. Now it supports the LEMON format
kpeter@302: and the encapsulated postscript (EPS) format.
kpeter@318: postscript (EPS) format.
alpar@40: */
alpar@40: 
alpar@40: /**
ladanyi@236: @defgroup lemon_io LEMON Input-Output
alpar@40: @ingroup io_group
kpeter@318: \brief Reading and writing LEMON Graph Format.
alpar@40: 
alpar@210: This group describes methods for reading and writing
ladanyi@236: \ref lgf-format "LEMON Graph Format".
alpar@40: */
alpar@40: 
alpar@40: /**
kpeter@318: @defgroup eps_io Postscript Exporting
alpar@40: @ingroup io_group
alpar@40: \brief General \c EPS drawer and graph exporter
alpar@40: 
kpeter@50: This group describes general \c EPS drawing methods and special
alpar@209: graph exporting tools.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup concept Concepts
alpar@40: \brief Skeleton classes and concept checking classes
alpar@40: 
alpar@40: This group describes the data/algorithm skeletons and concept checking
alpar@40: classes implemented in LEMON.
alpar@40: 
alpar@40: The purpose of the classes in this group is fourfold.
alpar@209: 
alpar@40: - These classes contain the documentations of the concepts. In order
alpar@40:   to avoid document multiplications, an implementation of a concept
alpar@40:   simply refers to the corresponding concept class.
alpar@40: 
alpar@40: - These classes declare every functions, <tt>typedef</tt>s etc. an
alpar@40:   implementation of the concepts should provide, however completely
alpar@40:   without implementations and real data structures behind the
alpar@40:   interface. On the other hand they should provide nothing else. All
alpar@40:   the algorithms working on a data structure meeting a certain concept
alpar@40:   should compile with these classes. (Though it will not run properly,
alpar@40:   of course.) In this way it is easily to check if an algorithm
alpar@40:   doesn't use any extra feature of a certain implementation.
alpar@40: 
alpar@40: - The concept descriptor classes also provide a <em>checker class</em>
kpeter@50:   that makes it possible to check whether a certain implementation of a
alpar@40:   concept indeed provides all the required features.
alpar@40: 
alpar@40: - Finally, They can serve as a skeleton of a new implementation of a concept.
alpar@40: */
alpar@40: 
alpar@40: /**
alpar@40: @defgroup graph_concepts Graph Structure Concepts
alpar@40: @ingroup concept
alpar@40: \brief Skeleton and concept checking classes for graph structures
alpar@40: 
kpeter@50: This group describes the skeletons and concept checking classes of LEMON's
alpar@40: graph structures and helper classes used to implement these.
alpar@40: */
alpar@40: 
kpeter@318: 
kpeter@318: This group describes the skeletons and concept checking classes of maps.
alpar@40: /**
alpar@40: \anchor demoprograms
alpar@40: 
alpar@40: @defgroup demos Demo programs
alpar@40: 
alpar@40: Some demo programs are listed here. Their full source codes can be found in
alpar@40: the \c demo subdirectory of the source tree.
alpar@40: 
alpar@41: It order to compile them, use <tt>--enable-demo</tt> configure option when
alpar@41: build the library.
alpar@40: */