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-rw-r--r--lemon/demo/.deps/arg_parser_demo.Po1
-rw-r--r--lemon/demo/.deps/graph_to_eps_demo.Po1
-rw-r--r--lemon/demo/.deps/lgf_demo.Po1
-rw-r--r--lemon/demo/CMakeLists.txt19
-rw-r--r--lemon/demo/Makefile523
-rw-r--r--lemon/demo/Makefile.am17
-rw-r--r--lemon/demo/Makefile.in523
-rw-r--r--lemon/demo/arg_parser_demo.cc112
-rw-r--r--lemon/demo/digraph.lgf29
-rw-r--r--lemon/demo/graph_to_eps_demo.cc206
-rw-r--r--lemon/demo/lgf_demo.cc70
11 files changed, 1502 insertions, 0 deletions
diff --git a/lemon/demo/.deps/arg_parser_demo.Po b/lemon/demo/.deps/arg_parser_demo.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/lemon/demo/.deps/arg_parser_demo.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/lemon/demo/.deps/graph_to_eps_demo.Po b/lemon/demo/.deps/graph_to_eps_demo.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/lemon/demo/.deps/graph_to_eps_demo.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/lemon/demo/.deps/lgf_demo.Po b/lemon/demo/.deps/lgf_demo.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/lemon/demo/.deps/lgf_demo.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/lemon/demo/CMakeLists.txt b/lemon/demo/CMakeLists.txt
new file mode 100644
index 0000000..e0566f4
--- /dev/null
+++ b/lemon/demo/CMakeLists.txt
@@ -0,0 +1,19 @@
+INCLUDE_DIRECTORIES(
+ ${PROJECT_SOURCE_DIR}
+ ${PROJECT_BINARY_DIR}
+)
+
+LINK_DIRECTORIES(
+ ${PROJECT_BINARY_DIR}/lemon
+)
+
+SET(DEMOS
+ arg_parser_demo
+ graph_to_eps_demo
+ lgf_demo
+)
+
+FOREACH(DEMO_NAME ${DEMOS})
+ ADD_EXECUTABLE(${DEMO_NAME} ${DEMO_NAME}.cc)
+ TARGET_LINK_LIBRARIES(${DEMO_NAME} lemon)
+ENDFOREACH()
diff --git a/lemon/demo/Makefile b/lemon/demo/Makefile
new file mode 100644
index 0000000..77521a3
--- /dev/null
+++ b/lemon/demo/Makefile
@@ -0,0 +1,523 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# demo/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+
+pkgdatadir = $(datadir)/lemon
+pkgincludedir = $(includedir)/lemon
+pkglibdir = $(libdir)/lemon
+pkglibexecdir = $(libexecdir)/lemon
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
+noinst_PROGRAMS = arg_parser_demo$(EXEEXT) graph_to_eps_demo$(EXEEXT) \
+ lgf_demo$(EXEEXT)
+subdir = demo
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
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+ $(top_srcdir)/m4/lx_check_coin.m4 \
+ $(top_srcdir)/m4/lx_check_cplex.m4 \
+ $(top_srcdir)/m4/lx_check_glpk.m4 \
+ $(top_srcdir)/m4/lx_check_soplex.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h \
+ $(top_builddir)/lemon/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
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+graph_to_eps_demo_DEPENDENCIES = $(top_builddir)/lemon/libemon.la
+am_lgf_demo_OBJECTS = lgf_demo.$(OBJEXT)
+lgf_demo_OBJECTS = $(am_lgf_demo_OBJECTS)
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+ --mode=compile $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+ $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
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+ $(LDFLAGS) -o $@
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+ $(lgf_demo_SOURCES)
+DIST_SOURCES = $(arg_parser_demo_SOURCES) $(graph_to_eps_demo_SOURCES) \
+ $(lgf_demo_SOURCES)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = ${SHELL} /home/carlo/honours/lemon/build-aux/missing --run aclocal-1.11
+AMTAR = ${SHELL} /home/carlo/honours/lemon/build-aux/missing --run tar
+AR = ar
+AUTOCONF = ${SHELL} /home/carlo/honours/lemon/build-aux/missing --run autoconf
+AUTOHEADER = ${SHELL} /home/carlo/honours/lemon/build-aux/missing --run autoheader
+AUTOMAKE = ${SHELL} /home/carlo/honours/lemon/build-aux/missing --run automake-1.11
+AWK = mawk
+CBC_CXXFLAGS =
+CBC_LIBS =
+CC = gcc
+CCDEPMODE = depmode=gcc3
+CFLAGS = -g -O2
+CLP_CXXFLAGS =
+CLP_LIBS =
+CONFIG_STATUS_DEPENDENCIES = $(top_srcdir)/doc/Doxyfile.in $(top_srcdir)/doc/mainpage.dox.in $(top_srcdir)/lemon/lemon.pc.in $(top_srcdir)/cmake/version.cmake.in
+CPLEX_CFLAGS =
+CPLEX_LIBS =
+CPPFLAGS =
+CXX = g++
+CXXCPP = g++ -E
+CXXDEPMODE = depmode=gcc3
+CXXFLAGS = -g -O2
+CYGPATH_W = echo
+DEFS = -DHAVE_CONFIG_H
+DEPDIR = .deps
+DSYMUTIL =
+DUMPBIN =
+ECHO_C =
+ECHO_N = -n
+ECHO_T =
+EGREP = /bin/grep -E
+EXEEXT =
+FGREP = /bin/grep -F
+GLPK_CFLAGS =
+GLPK_LIBS =
+GREP = /bin/grep
+HAVE_VALGRIND =
+INSTALL = /usr/bin/install -c
+INSTALL_DATA = ${INSTALL} -m 644
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_SCRIPT = ${INSTALL}
+INSTALL_STRIP_PROGRAM = $(install_sh) -c -s
+LD = /usr/bin/ld -m elf_x86_64
+LDFLAGS =
+LIBOBJS =
+LIBS =
+LIBTOOL = $(SHELL) $(top_builddir)/libtool
+LIPO =
+LN_S = ln -s
+LTLIBOBJS =
+MAKEINFO = ${SHELL} /home/carlo/honours/lemon/build-aux/missing --run makeinfo
+MKDIR_P = /bin/mkdir -p
+NM = /usr/bin/nm -B
+NMEDIT =
+OBJDUMP = objdump
+OBJEXT = o
+OTOOL =
+OTOOL64 =
+PACKAGE = lemon
+PACKAGE_BUGREPORT = lemon-user@lemon.cs.elte.hu
+PACKAGE_NAME = LEMON
+PACKAGE_STRING = LEMON 1.2.3
+PACKAGE_TARNAME = lemon
+PACKAGE_URL =
+PACKAGE_VERSION = 1.2.3
+PATH_SEPARATOR = :
+RANLIB = ranlib
+SED = /bin/sed
+SET_MAKE =
+SHELL = /bin/bash
+SOPLEX_CXXFLAGS =
+SOPLEX_LIBS =
+STRIP = strip
+VERSION = 1.2.3
+WARNINGCXXFLAGS = -Wall -W -Wall -W -Wunused -Wformat=2 -Wctor-dtor-privacy -Wnon-virtual-dtor -Wno-char-subscripts -Wwrite-strings -Wno-char-subscripts -Wreturn-type -Wcast-qual -Wcast-align -Wsign-promo -Woverloaded-virtual -ansi -fno-strict-aliasing -Wold-style-cast -Wno-unknown-pragmas
+abs_builddir = /home/carlo/honours/lemon/demo
+abs_srcdir = /home/carlo/honours/lemon/demo
+abs_top_builddir = /home/carlo/honours/lemon
+abs_top_srcdir = /home/carlo/honours/lemon
+ac_ct_CC = gcc
+ac_ct_CXX = g++
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+build_vendor = unknown
+builddir = .
+datadir = ${datarootdir}
+datarootdir = ${prefix}/share
+docdir = ${datarootdir}/doc/${PACKAGE_TARNAME}
+doxygen_found = no
+dvidir = ${docdir}
+exec_prefix = ${prefix}
+gs_found = yes
+host = x86_64-unknown-linux-gnu
+host_alias =
+host_cpu = x86_64
+host_os = linux-gnu
+host_vendor = unknown
+htmldir = ${docdir}
+includedir = ${prefix}/include
+infodir = ${datarootdir}/info
+install_sh = ${SHELL} /home/carlo/honours/lemon/build-aux/install-sh
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+psdir = ${docdir}
+python_found = yes
+sbindir = ${exec_prefix}/sbin
+sharedstatedir = ${prefix}/com
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+top_srcdir = ..
+AM_CXXFLAGS = $(WARNINGCXXFLAGS)
+AM_CPPFLAGS = -I$(top_srcdir) -I$(top_builddir)
+LDADD = $(top_builddir)/lemon/libemon.la
+EXTRA_DIST = \
+ CMakeLists.txt \
+ digraph.lgf
+
+arg_parser_demo_SOURCES = arg_parser_demo.cc
+graph_to_eps_demo_SOURCES = graph_to_eps_demo.cc
+lgf_demo_SOURCES = lgf_demo.cc
+all: all-am
+
+.SUFFIXES:
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+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
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+ $(AUTOMAKE) --foreign demo/Makefile
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+ *config.status*) \
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+ @rm -f arg_parser_demo$(EXEEXT)
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+ @rm -f graph_to_eps_demo$(EXEEXT)
+ $(CXXLINK) $(graph_to_eps_demo_OBJECTS) $(graph_to_eps_demo_LDADD) $(LIBS)
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+include ./$(DEPDIR)/arg_parser_demo.Po
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+
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+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+ clean-libtool clean-noinstPROGRAMS ctags distclean \
+ distclean-compile distclean-generic distclean-libtool \
+ distclean-tags distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-dvi \
+ install-dvi-am install-exec install-exec-am install-html \
+ install-html-am install-info install-info-am install-man \
+ install-pdf install-pdf-am install-ps install-ps-am \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+ pdf pdf-am ps ps-am tags uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lemon/demo/arg_parser_demo.cc b/lemon/demo/arg_parser_demo.cc
new file mode 100644
index 0000000..1bafac0
--- /dev/null
+++ b/lemon/demo/arg_parser_demo.cc
@@ -0,0 +1,112 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2010
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+///\ingroup demos
+///\file
+///\brief Argument parser demo
+///
+/// This example shows how the argument parser can be used.
+///
+/// \include arg_parser_demo.cc
+
+#include <lemon/arg_parser.h>
+
+using namespace lemon;
+int main(int argc, char **argv)
+{
+ // Initialize the argument parser
+ ArgParser ap(argc, argv);
+ int i;
+ std::string s;
+ double d = 1.0;
+ bool b, nh;
+ bool g1, g2, g3;
+
+ // Add a mandatory integer option with storage reference
+ ap.refOption("n", "An integer input.", i, true);
+ // Add a double option with storage reference (the default value is 1.0)
+ ap.refOption("val", "A double input.", d);
+ // Add a double option without storage reference (the default value is 3.14)
+ ap.doubleOption("val2", "A double input.", 3.14);
+ // Set synonym for -val option
+ ap.synonym("vals", "val");
+ // Add a string option
+ ap.refOption("name", "A string input.", s);
+ // Add bool options
+ ap.refOption("f", "A switch.", b)
+ .refOption("nohelp", "", nh)
+ .refOption("gra", "Choice A", g1)
+ .refOption("grb", "Choice B", g2)
+ .refOption("grc", "Choice C", g3);
+ // Bundle -gr* options into a group
+ ap.optionGroup("gr", "gra")
+ .optionGroup("gr", "grb")
+ .optionGroup("gr", "grc");
+ // Set the group mandatory
+ ap.mandatoryGroup("gr");
+ // Set the options of the group exclusive (only one option can be given)
+ ap.onlyOneGroup("gr");
+ // Add non-parsed arguments (e.g. input files)
+ ap.other("infile", "The input file.")
+ .other("...");
+
+ // Throw an exception when problems occurs. The default behavior is to
+ // exit(1) on these cases, but this makes Valgrind falsely warn
+ // about memory leaks.
+ ap.throwOnProblems();
+
+ // Perform the parsing process
+ // (in case of any error it terminates the program)
+ // The try {} construct is necessary only if the ap.trowOnProblems()
+ // setting is in use.
+ try {
+ ap.parse();
+ } catch (ArgParserException &) { return 1; }
+
+ // Check each option if it has been given and print its value
+ std::cout << "Parameters of '" << ap.commandName() << "':\n";
+
+ std::cout << " Value of -n: " << i << std::endl;
+ if(ap.given("val")) std::cout << " Value of -val: " << d << std::endl;
+ if(ap.given("val2")) {
+ d = ap["val2"];
+ std::cout << " Value of -val2: " << d << std::endl;
+ }
+ if(ap.given("name")) std::cout << " Value of -name: " << s << std::endl;
+ if(ap.given("f")) std::cout << " -f is given\n";
+ if(ap.given("nohelp")) std::cout << " Value of -nohelp: " << nh << std::endl;
+ if(ap.given("gra")) std::cout << " -gra is given\n";
+ if(ap.given("grb")) std::cout << " -grb is given\n";
+ if(ap.given("grc")) std::cout << " -grc is given\n";
+
+ switch(ap.files().size()) {
+ case 0:
+ std::cout << " No file argument was given.\n";
+ break;
+ case 1:
+ std::cout << " 1 file argument was given. It is:\n";
+ break;
+ default:
+ std::cout << " "
+ << ap.files().size() << " file arguments were given. They are:\n";
+ }
+ for(unsigned int i=0;i<ap.files().size();++i)
+ std::cout << " '" << ap.files()[i] << "'\n";
+
+ return 0;
+}
diff --git a/lemon/demo/digraph.lgf b/lemon/demo/digraph.lgf
new file mode 100644
index 0000000..83ba7da
--- /dev/null
+++ b/lemon/demo/digraph.lgf
@@ -0,0 +1,29 @@
+@nodes
+label
+0
+1
+2
+3
+4
+5
+6
+7
+@arcs
+ label capacity
+0 1 0 16
+0 2 1 12
+0 3 2 20
+1 2 3 10
+1 4 4 10
+1 5 5 13
+2 3 6 10
+2 4 7 8
+2 6 8 8
+5 3 9 20
+3 6 10 25
+4 7 11 15
+5 7 12 15
+6 7 13 18
+@attributes
+source 0
+target 7
diff --git a/lemon/demo/graph_to_eps_demo.cc b/lemon/demo/graph_to_eps_demo.cc
new file mode 100644
index 0000000..f2f55a9
--- /dev/null
+++ b/lemon/demo/graph_to_eps_demo.cc
@@ -0,0 +1,206 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2009
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+/// \ingroup demos
+/// \file
+/// \brief Demo of the graph drawing function \ref graphToEps()
+///
+/// This demo program shows examples how to use the function \ref
+/// graphToEps(). It takes no input but simply creates seven
+/// <tt>.eps</tt> files demonstrating the capability of \ref
+/// graphToEps(), and showing how to draw directed graphs,
+/// how to handle parallel egdes, how to change the properties (like
+/// color, shape, size, title etc.) of nodes and arcs individually
+/// using appropriate graph maps.
+///
+/// \include graph_to_eps_demo.cc
+
+#include<lemon/list_graph.h>
+#include<lemon/graph_to_eps.h>
+#include<lemon/math.h>
+
+using namespace std;
+using namespace lemon;
+
+int main()
+{
+ Palette palette;
+ Palette paletteW(true);
+
+ // Create a small digraph
+ ListDigraph g;
+ typedef ListDigraph::Node Node;
+ typedef ListDigraph::NodeIt NodeIt;
+ typedef ListDigraph::Arc Arc;
+ typedef dim2::Point<int> Point;
+
+ Node n1=g.addNode();
+ Node n2=g.addNode();
+ Node n3=g.addNode();
+ Node n4=g.addNode();
+ Node n5=g.addNode();
+
+ ListDigraph::NodeMap<Point> coords(g);
+ ListDigraph::NodeMap<double> sizes(g);
+ ListDigraph::NodeMap<int> colors(g);
+ ListDigraph::NodeMap<int> shapes(g);
+ ListDigraph::ArcMap<int> acolors(g);
+ ListDigraph::ArcMap<int> widths(g);
+
+ coords[n1]=Point(50,50); sizes[n1]=1; colors[n1]=1; shapes[n1]=0;
+ coords[n2]=Point(50,70); sizes[n2]=2; colors[n2]=2; shapes[n2]=2;
+ coords[n3]=Point(70,70); sizes[n3]=1; colors[n3]=3; shapes[n3]=0;
+ coords[n4]=Point(70,50); sizes[n4]=2; colors[n4]=4; shapes[n4]=1;
+ coords[n5]=Point(85,60); sizes[n5]=3; colors[n5]=5; shapes[n5]=2;
+
+ Arc a;
+
+ a=g.addArc(n1,n2); acolors[a]=0; widths[a]=1;
+ a=g.addArc(n2,n3); acolors[a]=0; widths[a]=1;
+ a=g.addArc(n3,n5); acolors[a]=0; widths[a]=3;
+ a=g.addArc(n5,n4); acolors[a]=0; widths[a]=1;
+ a=g.addArc(n4,n1); acolors[a]=0; widths[a]=1;
+ a=g.addArc(n2,n4); acolors[a]=1; widths[a]=2;
+ a=g.addArc(n3,n4); acolors[a]=2; widths[a]=1;
+
+ IdMap<ListDigraph,Node> id(g);
+
+ // Create .eps files showing the digraph with different options
+ cout << "Create 'graph_to_eps_demo_out_1_pure.eps'" << endl;
+ graphToEps(g,"graph_to_eps_demo_out_1_pure.eps").
+ coords(coords).
+ title("Sample .eps figure").
+ copyright("(C) 2003-2009 LEMON Project").
+ run();
+
+ cout << "Create 'graph_to_eps_demo_out_2.eps'" << endl;
+ graphToEps(g,"graph_to_eps_demo_out_2.eps").
+ coords(coords).
+ title("Sample .eps figure").
+ copyright("(C) 2003-2009 LEMON Project").
+ absoluteNodeSizes().absoluteArcWidths().
+ nodeScale(2).nodeSizes(sizes).
+ nodeShapes(shapes).
+ nodeColors(composeMap(palette,colors)).
+ arcColors(composeMap(palette,acolors)).
+ arcWidthScale(.4).arcWidths(widths).
+ nodeTexts(id).nodeTextSize(3).
+ run();
+
+ cout << "Create 'graph_to_eps_demo_out_3_arr.eps'" << endl;
+ graphToEps(g,"graph_to_eps_demo_out_3_arr.eps").
+ title("Sample .eps figure (with arrowheads)").
+ copyright("(C) 2003-2009 LEMON Project").
+ absoluteNodeSizes().absoluteArcWidths().
+ nodeColors(composeMap(palette,colors)).
+ coords(coords).
+ nodeScale(2).nodeSizes(sizes).
+ nodeShapes(shapes).
+ arcColors(composeMap(palette,acolors)).
+ arcWidthScale(.4).arcWidths(widths).
+ nodeTexts(id).nodeTextSize(3).
+ drawArrows().arrowWidth(2).arrowLength(2).
+ run();
+
+ // Add more arcs to the digraph
+ a=g.addArc(n1,n4); acolors[a]=2; widths[a]=1;
+ a=g.addArc(n4,n1); acolors[a]=1; widths[a]=2;
+
+ a=g.addArc(n1,n2); acolors[a]=1; widths[a]=1;
+ a=g.addArc(n1,n2); acolors[a]=2; widths[a]=1;
+ a=g.addArc(n1,n2); acolors[a]=3; widths[a]=1;
+ a=g.addArc(n1,n2); acolors[a]=4; widths[a]=1;
+ a=g.addArc(n1,n2); acolors[a]=5; widths[a]=1;
+ a=g.addArc(n1,n2); acolors[a]=6; widths[a]=1;
+ a=g.addArc(n1,n2); acolors[a]=7; widths[a]=1;
+
+ cout << "Create 'graph_to_eps_demo_out_4_par.eps'" << endl;
+ graphToEps(g,"graph_to_eps_demo_out_4_par.eps").
+ title("Sample .eps figure (parallel arcs)").
+ copyright("(C) 2003-2009 LEMON Project").
+ absoluteNodeSizes().absoluteArcWidths().
+ nodeShapes(shapes).
+ coords(coords).
+ nodeScale(2).nodeSizes(sizes).
+ nodeColors(composeMap(palette,colors)).
+ arcColors(composeMap(palette,acolors)).
+ arcWidthScale(.4).arcWidths(widths).
+ nodeTexts(id).nodeTextSize(3).
+ enableParallel().parArcDist(1.5).
+ run();
+
+ cout << "Create 'graph_to_eps_demo_out_5_par_arr.eps'" << endl;
+ graphToEps(g,"graph_to_eps_demo_out_5_par_arr.eps").
+ title("Sample .eps figure (parallel arcs and arrowheads)").
+ copyright("(C) 2003-2009 LEMON Project").
+ absoluteNodeSizes().absoluteArcWidths().
+ nodeScale(2).nodeSizes(sizes).
+ coords(coords).
+ nodeShapes(shapes).
+ nodeColors(composeMap(palette,colors)).
+ arcColors(composeMap(palette,acolors)).
+ arcWidthScale(.3).arcWidths(widths).
+ nodeTexts(id).nodeTextSize(3).
+ enableParallel().parArcDist(1).
+ drawArrows().arrowWidth(1).arrowLength(1).
+ run();
+
+ cout << "Create 'graph_to_eps_demo_out_6_par_arr_a4.eps'" << endl;
+ graphToEps(g,"graph_to_eps_demo_out_6_par_arr_a4.eps").
+ title("Sample .eps figure (fits to A4)").
+ copyright("(C) 2003-2009 LEMON Project").
+ scaleToA4().
+ absoluteNodeSizes().absoluteArcWidths().
+ nodeScale(2).nodeSizes(sizes).
+ coords(coords).
+ nodeShapes(shapes).
+ nodeColors(composeMap(palette,colors)).
+ arcColors(composeMap(palette,acolors)).
+ arcWidthScale(.3).arcWidths(widths).
+ nodeTexts(id).nodeTextSize(3).
+ enableParallel().parArcDist(1).
+ drawArrows().arrowWidth(1).arrowLength(1).
+ run();
+
+ // Create an .eps file showing the colors of a default Palette
+ ListDigraph h;
+ ListDigraph::NodeMap<int> hcolors(h);
+ ListDigraph::NodeMap<Point> hcoords(h);
+
+ int cols=int(std::sqrt(double(palette.size())));
+ for(int i=0;i<int(paletteW.size());i++) {
+ Node n=h.addNode();
+ hcoords[n]=Point(1+i%cols,1+i/cols);
+ hcolors[n]=i;
+ }
+
+ cout << "Create 'graph_to_eps_demo_out_7_colors.eps'" << endl;
+ graphToEps(h,"graph_to_eps_demo_out_7_colors.eps").
+ scale(60).
+ title("Sample .eps figure (Palette demo)").
+ copyright("(C) 2003-2009 LEMON Project").
+ coords(hcoords).
+ absoluteNodeSizes().absoluteArcWidths().
+ nodeScale(.45).
+ distantColorNodeTexts().
+ nodeTexts(hcolors).nodeTextSize(.6).
+ nodeColors(composeMap(paletteW,hcolors)).
+ run();
+
+ return 0;
+}
diff --git a/lemon/demo/lgf_demo.cc b/lemon/demo/lgf_demo.cc
new file mode 100644
index 0000000..e2d31cd
--- /dev/null
+++ b/lemon/demo/lgf_demo.cc
@@ -0,0 +1,70 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2009
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+///\ingroup demos
+///\file
+///\brief Demonstrating graph input and output
+///
+/// This program gives an example of how to read and write a digraph
+/// and additional maps from/to a stream or a file using the
+/// \ref lgf-format "LGF" format.
+///
+/// The \c "digraph.lgf" file:
+/// \include digraph.lgf
+///
+/// And the program which reads it and prints the digraph to the
+/// standard output:
+/// \include lgf_demo.cc
+
+#include <iostream>
+#include <lemon/smart_graph.h>
+#include <lemon/lgf_reader.h>
+#include <lemon/lgf_writer.h>
+
+using namespace lemon;
+
+int main() {
+ SmartDigraph g;
+ SmartDigraph::ArcMap<int> cap(g);
+ SmartDigraph::Node s, t;
+
+ try {
+ digraphReader(g, "digraph.lgf"). // read the directed graph into g
+ arcMap("capacity", cap). // read the 'capacity' arc map into cap
+ node("source", s). // read 'source' node to s
+ node("target", t). // read 'target' node to t
+ run();
+ } catch (Exception& error) { // check if there was any error
+ std::cerr << "Error: " << error.what() << std::endl;
+ return -1;
+ }
+
+ std::cout << "A digraph is read from 'digraph.lgf'." << std::endl;
+ std::cout << "Number of nodes: " << countNodes(g) << std::endl;
+ std::cout << "Number of arcs: " << countArcs(g) << std::endl;
+
+ std::cout << "We can write it to the standard output:" << std::endl;
+
+ digraphWriter(g). // write g to the standard output
+ arcMap("capacity", cap). // write cap into 'capacity'
+ node("source", s). // write s to 'source'
+ node("target", t). // write t to 'target'
+ run();
+
+ return 0;
+}