Campbell Barton
e12c08e8d1
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86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __FREESTYLE_ADVANCED_PREDICATES_1D_H__
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#define __FREESTYLE_ADVANCED_PREDICATES_1D_H__
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/** \file
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* \ingroup freestyle
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* \brief Class gathering stroke creation algorithms
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*/
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#include <string>
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#include "AdvancedFunctions1D.h"
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#include "Predicates1D.h"
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#include "../view_map/Interface1D.h"
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//
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// Predicates definitions
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//
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///////////////////////////////////////////////////////////
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namespace Freestyle {
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namespace Predicates1D {
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// DensityLowerThanUP1D
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/*! Returns true if the density evaluated for the
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* Interface1D is less than a user-defined density value.
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*/
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class DensityLowerThanUP1D : public UnaryPredicate1D {
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public:
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/*! Builds the functor.
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* \param threshold:
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* The value of the threshold density.
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* Any Interface1D having a density lower than this threshold will match.
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* \param sigma:
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* The sigma value defining the density evaluation window size used in the DensityF0D functor.
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*/
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DensityLowerThanUP1D(double threshold, double sigma = 2)
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{
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_threshold = threshold;
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_sigma = sigma;
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}
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/*! Returns the string "DensityLowerThanUP1D" */
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string getName() const
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{
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return "DensityLowerThanUP1D";
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}
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/*! The () operator. */
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int operator()(Interface1D &inter)
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{
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Functions1D::DensityF1D fun(_sigma);
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if (fun(inter) < 0)
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return -1;
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result = (fun.result < _threshold);
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return 0;
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}
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private:
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double _sigma;
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double _threshold;
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};
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} // end of namespace Predicates1D
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} /* namespace Freestyle */
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#endif // __FREESTYLE_ADVANCED_PREDICATES_1D_H__
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