ext/OGDF/src/energybased/multilevelmixer/MMMExampleNiceLayout.cpp

   1 /*
   2  * $Revision: 2523 $
   3  *
   4  * last checkin:
   5  *   $Author: gutwenger $
   6  *   $Date: 2012-07-02 20:59:27 +0200 (Mon, 02 Jul 2012) $
   7  ***************************************************************/
   8
   9 /** \file
  10  * \brief useable example of the Modular Multilevel Mixer
  11  *
  12  * \author Gereon Bartel
  13  *
  14  * \par License:
  15  * This file is part of the Open Graph Drawing Framework (OGDF).
  16  *
  17  * \par
  18  * Copyright (C)<br>
  19  * See README.txt in the root directory of the OGDF installation for details.
  20  *
  21  * \par
  22  * This program is free software; you can redistribute it and/or
  23  * modify it under the terms of the GNU General Public License
  24  * Version 2 or 3 as published by the Free Software Foundation;
  25  * see the file LICENSE.txt included in the packaging of this file
  26  * for details.
  27  *
  28  * \par
  29  * This program is distributed in the hope that it will be useful,
  30  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  31  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  32  * GNU General Public License for more details.
  33  *
  34  * \par
  35  * You should have received a copy of the GNU General Public
  36  * License along with this program; if not, write to the Free
  37  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  38  * Boston, MA 02110-1301, USA.
  39  *
  40  * \see  http://www.gnu.org/copyleft/gpl.html
  41  ***************************************************************/
  42
  43 #include <ogdf/energybased/multilevelmixer/MMMExampleNiceLayout.h>
  44 #include <ogdf/basic/PreprocessorLayout.h>
  45 #include <ogdf/packing/ComponentSplitterLayout.h>
  46 #include <ogdf/energybased/multilevelmixer/ModularMultilevelMixer.h>
  47 #include <ogdf/energybased/multilevelmixer/ScalingLayout.h>
  48 #include <ogdf/energybased/FastMultipoleEmbedder.h>
  49
  50 #include <ogdf/energybased/multilevelmixer/EdgeCoverMerger.h>
  51 #include <ogdf/energybased/multilevelmixer/BarycenterPlacer.h>
  52
  53 namespace ogdf {
  54
  55 MMMExampleNiceLayout::MMMExampleNiceLayout()
  56 {
  57 }
  58
  59
  60 void MMMExampleNiceLayout::call(GraphAttributes &GA)
  61 {
  62         MultilevelGraph MLG(GA);
  63         call(MLG);
  64         MLG.exportAttributes(GA);
  65 }
  66
  67
  68 void MMMExampleNiceLayout::call(MultilevelGraph &MLG)
  69 {
  70         // Fast Multipole Embedder
  71         FastMultipoleEmbedder * FME = new FastMultipoleEmbedder();
  72         FME->setNumIterations(1000);
  73         FME->setRandomize(false);
  74
  75         // Fast Edges Only Embedder
  76         FastMultipoleEmbedder * FEOE = new FastMultipoleEmbedder();
  77         FEOE->setNumIterations(0);
  78         FEOE->setRandomize(false);
  79
  80         // Edge Cover Merger
  81         EdgeCoverMerger * ECM = new EdgeCoverMerger();
  82         ECM->setFactor(2.0);
  83         ECM->setEdgeLengthAdjustment(0); // BEFORE (but arg is int!): ECM->setEdgeLengthAdjustment(0.1);
  84
  85         // Barycenter Placer with weighted Positions
  86         BarycenterPlacer * BP = new BarycenterPlacer();
  87         BP->weightedPositionPriority(true);
  88
  89         // No Scaling
  90         ScalingLayout * SL = new ScalingLayout();
  91         SL->setExtraScalingSteps(0);
  92         SL->setScaling(1.0, 1.0);
  93         SL->setScalingType(ScalingLayout::st_relativeToDrawing);
  94         SL->setSecondaryLayout(FME);
  95         SL->setLayoutRepeats(1);
  96
  97         ModularMultilevelMixer *MMM = new ModularMultilevelMixer;
  98         MMM->setLayoutRepeats(1);
  99 //      MMM->setAllEdgeLenghts(5.0);
 100 //      MMM->setAllNodeSizes(1.0);
 101         MMM->setLevelLayoutModule(SL);
 102         MMM->setInitialPlacer(BP);
 103         MMM->setMultilevelBuilder(ECM);
 104
 105         ComponentSplitterLayout *CS = new ComponentSplitterLayout;
 106         CS->setLayoutModule(MMM);
 107         PreprocessorLayout PPL;
 108         PPL.setLayoutModule(CS);
 109         PPL.setRandomizePositions(true);
 110
 111         PPL.call(MLG);
 112 }
 113
 114 } // namespace ogdf
 115