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Diffstat (limited to 'source/blender/freestyle/intern/stroke/Predicates1D.h')
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diff --git a/source/blender/freestyle/intern/stroke/Predicates1D.h b/source/blender/freestyle/intern/stroke/Predicates1D.h new file mode 100755 index 00000000000..cf9a3283ae4 --- /dev/null +++ b/source/blender/freestyle/intern/stroke/Predicates1D.h @@ -0,0 +1,438 @@ +// +// Filename : Predicates1D.h +// Author(s) : Stephane Grabli, Emmanuel Turquin +// Purpose : Class gathering stroke creation algorithms +// Date of creation : 01/07/2003 +// +/////////////////////////////////////////////////////////////////////////////// + + +// +// Copyright (C) : Please refer to the COPYRIGHT file distributed +// with this source distribution. +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License +// as published by the Free Software Foundation; either version 2 +// of the License, or (at your option) any later version. +// +// This program 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. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +// +/////////////////////////////////////////////////////////////////////////////// + +#ifndef PREDICATES1D_H +# define PREDICATES1D_H + +# include <string> +# include "../system/TimeStamp.h" +# include "../view_map/Interface1D.h" +# include "../view_map/Functions1D.h" +# include "AdvancedFunctions1D.h" + +// +// UnaryPredicate1D (base class for predicates in 1D) +// +/////////////////////////////////////////////////////////// +/*! Base class for Unary Predicates that work + * on Interface1D. + * A UnaryPredicate1D is a functor that evaluates + * a condition on a Interface1D and returns + * true or false depending on whether this condition is + * satisfied or not. + * The UnaryPredicate1D is used by calling its () operator. + * Any inherited class must overload the () operator. + */ +class UnaryPredicate1D +{ +public: + /*! Default constructor. */ + UnaryPredicate1D() {} + /*! Destructor. */ + virtual ~UnaryPredicate1D() {} + /*! Returns the string of the name + * of the UnaryPredicate1D. + */ + virtual string getName() const { + return "UnaryPredicate1D"; + } + /*! The () operator. Must be overload + * by inherited classes. + * \param inter + * The Interface1D on which we wish to evaluate + * the predicate. + * \return true if the condition is satisfied, + * false otherwise. + */ + virtual bool operator()(Interface1D& inter) { + cerr << "Warning: operator() not implemented" << endl; + return false; + } +}; + + +// +// BinaryPredicate1D (base class for predicates in 1D) +// +/////////////////////////////////////////////////////////// +/*! Base class for Binary Predicates working on Interface1D. + * A BinaryPredicate1D is typically an ordering relation + * between two Interface1D. + * It evaluates a relation between 2 Interface1D and + * returns true or false. + * It is used by calling the () operator. + */ +class BinaryPredicate1D +{ +public: + /*! Default constructor. */ + BinaryPredicate1D() {} + /*! Destructor. */ + virtual ~BinaryPredicate1D() {} + /*! Returns the string of the name of the + * binary predicate. + */ + virtual string getName() const { + return "BinaryPredicate1D"; + } + /*! The () operator. Must be overload by inherited classes. + * It evaluates a relation between 2 Interface1D. + * \param inter1 + * The first Interface1D. + * \param inter2 + * The second Interface1D. + * \return true or false. + */ + virtual bool operator()(Interface1D& inter1, Interface1D& inter2) { + cerr << "Warning: operator() not implemented" << endl; + return false; + } +}; + + +// +// Predicates definitions +// +/////////////////////////////////////////////////////////// + +namespace Predicates1D { + + // TrueUP1D + /*! Returns true */ + class TrueUP1D : public UnaryPredicate1D + { + public: + /*! Constructor */ + TrueUP1D() {} + /*! Returns the string "TrueUP1D"*/ + string getName() const { + return "TrueUP1D"; + } + /*! the () operator */ + bool operator()(Interface1D&) { + return true; + } + }; + + // FalseUP1D + /*! Returns false */ + class FalseUP1D : public UnaryPredicate1D + { + public: + /*! Constructor */ + FalseUP1D() {} + /*! Returns the string "FalseUP1D"*/ + string getName() const { + return "FalseUP1D"; + } + /*! the () operator */ + bool operator()(Interface1D&) { + return false; + } + }; + + // QuantitativeInvisibilityUP1D + /*! Returns true if the Quantitative Invisibility evaluated + * at an Interface1D, using the QuantitativeInvisibilityF1D + * functor, equals a certain user-defined value. + */ + class QuantitativeInvisibilityUP1D : public UnaryPredicate1D + { + public: + /*! Builds the Predicate. + * \param qi + * The Quantitative Invisibility you want + * the Interface1D to have + */ + QuantitativeInvisibilityUP1D(unsigned qi = 0) : _qi(qi) {} + /*! Returns the string "QuantitativeInvisibilityUP1D"*/ + string getName() const { + return "QuantitativeInvisibilityUP1D"; + } + /*! the () operator */ + bool operator()(Interface1D& inter) { + Functions1D::QuantitativeInvisibilityF1D func; + return (func(inter) == _qi); + } + private: + unsigned _qi; + }; + + // ContourUP1D + /*! Returns true if the Interface1D is a contour. + * An Interface1D is a contour if it is borded + * by a different shape on each of its sides. + */ + class ContourUP1D : public UnaryPredicate1D + { + private: + Functions1D::CurveNatureF1D _getNature; + public: + /*! Returns the string "ContourUP1D"*/ + string getName() const { + return "ContourUP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& inter) { + if((_getNature(inter) & Nature::SILHOUETTE) || (_getNature(inter) & Nature::BORDER)){ + Interface0DIterator it=inter.verticesBegin(); + for(; !it.isEnd(); ++it){ + if(Functions0D::getOccludeeF0D(it) != Functions0D::getShapeF0D(it)) + return true; + } + } + return false; + } + }; + + // ExternalContourUP1D + /*! Returns true if the Interface1D is an external contour. + * An Interface1D is an external contour if it is borded + * by no shape on one of its sides. + */ + class ExternalContourUP1D : public UnaryPredicate1D + { + private: + Functions1D::CurveNatureF1D _getNature; + public: + /*! Returns the string "ExternalContourUP1D"*/ + string getName() const { + return "ExternalContourUP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& inter) { + if((_getNature(inter) & Nature::SILHOUETTE) || (_getNature(inter) & Nature::BORDER)){ + set<ViewShape*> occluded; + Functions1D::getOccludeeF1D(inter, occluded); + for(set<ViewShape*>::iterator os=occluded.begin(), osend=occluded.end(); + os!=osend; + ++os){ + if((*os) == 0) + return true; + } + } + return false; + } + }; + + // EqualToTimeStampUP1D + /*! Returns true if the Interface1D's time stamp + * is equal to a certain user-defined value. + */ + class EqualToTimeStampUP1D : public UnaryPredicate1D + { + protected: + unsigned _timeStamp; + public: + EqualToTimeStampUP1D(unsigned ts) : UnaryPredicate1D(){ + _timeStamp = ts; + } + /*! Returns the string "EqualToTimeStampUP1D"*/ + string getName() const { + return "EqualToTimeStampUP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& inter) { + return (inter.getTimeStamp() == _timeStamp); + } + }; + + // EqualToChainingTimeStampUP1D + /*! Returns true if the Interface1D's time stamp + * is equal to a certain user-defined value. + */ + class EqualToChainingTimeStampUP1D : public UnaryPredicate1D + { + protected: + unsigned _timeStamp; + public: + EqualToChainingTimeStampUP1D(unsigned ts) : UnaryPredicate1D(){ + _timeStamp = ts; + } + /*! Returns the string "EqualToChainingTimeStampUP1D"*/ + string getName() const { + return "EqualToChainingTimeStampUP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& inter) { + ViewEdge* edge = dynamic_cast<ViewEdge*>(&inter); + if (!edge) + return false; + return (edge->getChainingTimeStamp() >= _timeStamp); + } + }; + + // ShapeUP1D + /*! Returns true if the shape to which the Interface1D + * belongs to has the same Id as the one specified by the + * user. + */ + class ShapeUP1D: public UnaryPredicate1D + { + private: + Id _id; + public: + /*! Builds the Predicate. + * \param idFirst + * The first Id component. + * \param idSecond + * The second Id component. + */ + ShapeUP1D(unsigned idFirst, unsigned idSecond=0) + : UnaryPredicate1D(){ + _id = Id(idFirst, idSecond); + } + /*! Returns the string "ShapeUP1D"*/ + string getName() const { + return "ShapeUP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& inter) { + set<ViewShape*> shapes; + Functions1D::getShapeF1D(inter, shapes); + for(set<ViewShape*>::iterator s=shapes.begin(), send=shapes.end(); + s!=send; + ++s){ + if((*s)->getId() == _id) + return true; + } + return false; + } + }; + + // + // Binary Predicates definitions + // + /////////////////////////////////////////////////////////// + + // TrueBP1D + /*! Returns true. */ + class TrueBP1D : public BinaryPredicate1D + { + public: + /*! Returns the string "TrueBP1D"*/ + string getName() const { + return "TrueBP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& i1, Interface1D& i2) { + return true; + } + }; + + // FalseBP1D + /*! Returns false. */ + class FalseBP1D : public BinaryPredicate1D + { + public: + /*! Returns the string "FalseBP1D"*/ + string getName() const { + return "FalseBP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& i1, Interface1D& i2) { + return false; + } + }; + + // Length2DBP1D + /*! Returns true if the 2D length of the Interface1D i1 + * is less than the 2D length of the Interface1D i2. + */ + class Length2DBP1D : public BinaryPredicate1D + { + public: + /*! Returns the string "Length2DBP1D"*/ + string getName() const { + return "Length2DBP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& i1, Interface1D& i2) { + return (i1.getLength2D() > i2.getLength2D()); + } + }; + + // SameShapeIdBP1D + /*! Returns true if the Interface1D i1 and i2 belong + * to the same shape. + */ + class SameShapeIdBP1D : public BinaryPredicate1D + { + public: + /*! Returns the string "SameShapeIdBP1D"*/ + string getName() const { + return "SameShapeIdBP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& i1, Interface1D& i2) { + set<ViewShape*> shapes1; + Functions1D::getShapeF1D(i1, shapes1); + set<ViewShape*> shapes2; + Functions1D::getShapeF1D(i2, shapes2); + // FIXME:// n2 algo, can do better... + for(set<ViewShape*>::iterator s=shapes1.begin(), send=shapes1.end(); + s!=send; + ++s){ + Id current = (*s)->getId(); + for(set<ViewShape*>::iterator s2=shapes2.begin(), s2end=shapes2.end(); + s2!=s2end; + ++s2){ + if((*s2)->getId() == current) + return true; + } + } + return false; + } + }; + + // ViewMapGradientNormBP1D + /*! Returns true if the evaluation of the + * Gradient norm Function is higher for Interface1D i1 + * than for i2. + */ + class ViewMapGradientNormBP1D : public BinaryPredicate1D + { + private: + Functions1D::GetViewMapGradientNormF1D _func; + public: + ViewMapGradientNormBP1D(int level, IntegrationType iType=MEAN, float sampling=2.0) + : BinaryPredicate1D(), _func(level, iType, sampling) { + } + /*! Returns the string "ViewMapGradientNormBP1D"*/ + string getName() const { + return "ViewMapGradientNormBP1D"; + } + /*! The () operator. */ + bool operator()(Interface1D& i1, Interface1D& i2) { + return (_func(i1) > _func(i2)); + } + }; +} // end of namespace Predicates1D + +#endif // PREDICATES1D_H |