c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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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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}
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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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