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/**
*
* This file is part of Tulip (www.tulip-software.org)
*
* 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 "DifusionRateFunctionGaussian.h"
#include <cmath>
#include <tulip/tulipconf.h>
DifusionRateFunctionGaussian::DifusionRateFunctionGaussian(
TimeDecreasingFunction* decreasingFunction) : DiffusionRateFunction(decreasingFunction) {
}
DifusionRateFunctionGaussian::~DifusionRateFunctionGaussian() {
}
double DifusionRateFunctionGaussian::computeSpaceRate(unsigned int distance,
unsigned int currentIteration, unsigned int maxIteration,
unsigned int inputSampleSize) {
double timeVal = timeFunction->computeCurrentTimeRate(currentIteration,
maxIteration, inputSampleSize);
double value = (sqrt((distance * distance))) / (2 * (timeVal * timeVal));
return exp(-value);
}
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