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/**
*
* This file is part of Tulip (https://tulip.labri.fr)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux
*
* Tulip is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Tulip is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
*/
#include <ogdf/energybased/FastMultipoleEmbedder.h>
#include <ogdf/packing/ComponentSplitterLayout.h>
#include <tulip2ogdf/OGDFLayoutPluginBase.h>
using namespace tlp;
using namespace ogdf;
static const char *paramHelp[] = {
// number of iterations
"The maximum number of iterations.",
// number of coefficients
"The number of coefficients for the expansions.",
// randomize layout
"If true, the initial layout will be randomized.",
// default node size
"The default node size.",
// default edge length
"The default edge length.",
// number of threads
"The number of threads to use during the computation of the layout."
};
class OGDFFastMultipoleEmbedder : public OGDFLayoutPluginBase {
public:
PLUGININFORMATION("Fast Multipole Embedder (OGDF)", "Martin Gronemann", "12/11/2007",
"Implements the fast multipole embedder layout algorithm of Martin Gronemann. "
"It uses the same repulsive forces as FM³ of Hachul and Jünger, but slightly "
"modified attractive forces.",
"1.0", "Force Directed")
OGDFFastMultipoleEmbedder(const tlp::PluginContext *context)
: OGDFLayoutPluginBase(context, context ? new ogdf::ComponentSplitterLayout() : nullptr) {
addInParameter<int>("number of iterations", paramHelp[0], "100");
addInParameter<int>("number of coefficients", paramHelp[1], "5");
addInParameter<bool>("randomize layout", paramHelp[2], "true");
addInParameter<double>("default node size", paramHelp[3], "20.0");
addInParameter<double>("default edge length", paramHelp[4], "1.0");
addInParameter<int>("number of threads", paramHelp[5], "2");
}
void beforeCall() override {
ComponentSplitterLayout *csl = static_cast<ComponentSplitterLayout *>(ogdfLayoutAlgo);
// ComponentSplitterLayout takes ownership of the FastMultipoleEmbedder instance
FastMultipoleEmbedder *fme = new FastMultipoleEmbedder();
csl->setLayoutModule(fme);
if (dataSet != nullptr) {
double dval = 0;
int ival = 0;
bool bval = 0;
if (dataSet->get("number of iterations", ival))
fme->setNumIterations(ival);
if (dataSet->get("number of coefficients", ival))
fme->setMultipolePrec(ival);
if (dataSet->get("number of threads", ival))
fme->setNumberOfThreads(ival);
if (dataSet->get("default node size", dval))
fme->setDefaultNodeSize(dval);
if (dataSet->get("default edge length", dval))
fme->setDefaultEdgeLength(dval);
if (dataSet->get("randomize layout", bval))
fme->setRandomize(bval);
}
// ensure the input graph is simple as the layout failed in non multi-threaded mode otherwise
// ogdf::makeSimple(tlpToOGDF->getOGDFGraph());
}
};
PLUGIN(OGDFFastMultipoleEmbedder)
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