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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/misclayout/BalloonLayout.h>
#include <ogdf/packing/ComponentSplitterLayout.h>
#include <tulip2ogdf/OGDFLayoutPluginBase.h>
using namespace tlp;
using namespace ogdf;
static const char *paramHelp[] = {
// Even angles
"Subtrees may be assigned even angles or angles depending on their size."};
class OGDFBalloon : public OGDFLayoutPluginBase {
public:
PLUGININFORMATION(
"Balloon (OGDF)", "Karsten Klein", "13/11/2007",
"Computes a radial (balloon) layout based on a spanning tree.<br/>The "
"algorithm is partially based on the papers:<br/><b>On Balloon Drawings of Rooted "
"Trees</b> by Lin and Yen<br/><b>Interacting with Huge Hierarchies: Beyond "
"Cone Trees</b> by Carriere and Kazman. ",
"1.5", "Hierarchical")
OGDFBalloon(const tlp::PluginContext *context)
: OGDFLayoutPluginBase(context, context ? new ogdf::ComponentSplitterLayout() : nullptr) {
addInParameter<bool>("even angles", paramHelp[0], "false", false);
}
void beforeCall() override {
ogdf::ComponentSplitterLayout *csl =
static_cast<ogdf::ComponentSplitterLayout *>(ogdfLayoutAlgo);
// ComponentSplitterLayout takes ownership of the BalloonLayout instance
BalloonLayout *balloon = new BalloonLayout();
csl->setLayoutModule(balloon);
if (dataSet != nullptr) {
bool val = false;
if (dataSet->get("even angles", val))
balloon->setEvenAngles(val);
}
}
};
PLUGIN(OGDFBalloon)
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