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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/upward/UpwardPlanarizationLayout.h>
#include <ogdf/packing/ComponentSplitterLayout.h>
#include <tulip2ogdf/OGDFLayoutPluginBase.h>
using namespace tlp;
using namespace ogdf;
static const char *paramHelp[] = {
// transpose
"If true, transpose the layout vertically.",
// number of crossings
"Returns the number of crossings",
// number of layers
"Returns the number of layers/levels"};
class OGDFUpwardPlanarization : public OGDFLayoutPluginBase {
UpwardPlanarizationLayout *upl;
public:
PLUGININFORMATION("Upward Planarization (OGDF)", "Hoi-Ming Wong", "12/11/2007",
"Implements an alternative to the classical Sugiyama approach. It adapts the "
"planarization approach for hierarchical graphs and produces significantly "
"less crossings than Sugiyama layout.",
"1.1", "Hierarchical")
OGDFUpwardPlanarization(const tlp::PluginContext *context)
: OGDFLayoutPluginBase(context, context ? new ogdf::ComponentSplitterLayout() : nullptr) {
addInParameter<bool>("transpose", paramHelp[0], "false");
addOutParameter<int>("number of crossings", paramHelp[1]);
addOutParameter<int>("number of layers", paramHelp[2]);
}
void beforeCall() override {
ComponentSplitterLayout *csl = static_cast<ogdf::ComponentSplitterLayout *>(ogdfLayoutAlgo);
upl = new UpwardPlanarizationLayout();
csl->setLayoutModule(upl);
}
void afterCall() override {
if (dataSet != nullptr) {
bool bval = false;
if (dataSet->get("transpose", bval)) {
if (bval) {
transposeLayoutVertically();
}
}
dataSet->set("number of crossings", upl->numberOfCrossings());
dataSet->set("number of layers", upl->numberOfLevels());
}
}
};
PLUGIN(OGDFUpwardPlanarization)
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