RhodeCode

 *

 * 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

/// <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 \ref maps-page "graph maps".

///

/// \include graph_to_eps_demo.cc

#include<lemon/list_graph.h>

#include<lemon/graph_utils.h>

#include<lemon/graph_to_eps.h>

#include<lemon/math.h>

  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);

  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) 2003-2008 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) 2003-2008 LEMON Project").

    copyright("(C) 2003-2008 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();

  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;

    title("Sample .eps figure (parallel arcs)").

    copyright("(C) 2003-2008 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();

    title("Sample .eps figure (parallel arcs and arrowheads)").

    copyright("(C) 2003-2008 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();

    title("Sample .eps figure (fits to A4)").

    copyright("(C) 2003-2008 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).

  // 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(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;

  }

    scale(60).

    title("Sample .eps figure (Palette demo)").

    copyright("(C) 2003-2008 LEMON Project").

    coords(hcoords).

    absoluteNodeSizes().absoluteArcWidths().

    nodeScale(.45).

    distantColorNodeTexts().

    nodeTexts(hcolors).nodeTextSize(.6).

    nodeColors(composeMap(paletteW,hcolors)).

    run();

  return 0;