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Diffstat (limited to 'source/blender/freestyle/intern/stroke/Stroke.cpp')
| -rw-r--r-- | source/blender/freestyle/intern/stroke/Stroke.cpp | 954 |
1 files changed, 954 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/stroke/Stroke.cpp b/source/blender/freestyle/intern/stroke/Stroke.cpp new file mode 100644 index 00000000000..7e6aa62ac59 --- /dev/null +++ b/source/blender/freestyle/intern/stroke/Stroke.cpp @@ -0,0 +1,954 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2010 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/freestyle/intern/stroke/Stroke.cpp + * \ingroup freestyle + * \brief Classes to define a stroke + * \author Stephane Grabli + * \date 09/09/2002 + */ + +#include "Stroke.h" +#include "StrokeAdvancedIterators.h" +#include "StrokeIterators.h" +#include "StrokeRenderer.h" + +#include "BKE_global.h" + +/**********************************/ +/* */ +/* */ +/* StrokeAttribute */ +/* */ +/* */ +/**********************************/ + +StrokeAttribute::StrokeAttribute() +{ + int i; + _alpha = 1.0f; + _thickness[0] = 1.0f; + _thickness[1] = 1.0f; + for (i = 0; i < 3; ++i) + _color[i] = 0.2f; + _color[0] = 0.8f; + _userAttributesReal = NULL; + _userAttributesVec2f = NULL; + _userAttributesVec3f = NULL; + _visible = true; +} + +StrokeAttribute::StrokeAttribute(const StrokeAttribute& iBrother) +{ + _alpha = iBrother._alpha; + _thickness[0] = iBrother._thickness[0]; + _thickness[1] = iBrother._thickness[1]; + for (int i = 0; i < 3; ++i) + _color[i] = iBrother._color[i]; + _visible = iBrother._visible; + if (iBrother._userAttributesReal) + _userAttributesReal = new realMap(*iBrother._userAttributesReal); + else + _userAttributesReal = NULL; + if (iBrother._userAttributesVec2f) + _userAttributesVec2f = new Vec2fMap(*iBrother._userAttributesVec2f); + else + _userAttributesVec2f = NULL; + if (iBrother._userAttributesVec3f) + _userAttributesVec3f = new Vec3fMap(*iBrother._userAttributesVec3f); + else + _userAttributesVec3f = NULL; +} + +StrokeAttribute::StrokeAttribute(float iRColor, float iGColor, float iBColor, float iAlpha, + float iRThickness, float iLThickness) +{ + _color[0] = iRColor; + _color[1] = iGColor; + _color[2] = iBColor; + + _alpha = iAlpha; + + _thickness[0] = iRThickness; + _thickness[1] = iLThickness; + + _visible = true; + + _userAttributesReal = NULL; + _userAttributesVec2f = NULL; + _userAttributesVec3f = NULL; +} + +StrokeAttribute::StrokeAttribute(const StrokeAttribute& a1, const StrokeAttribute& a2, float t) +{ + _alpha = (1 - t) * a1._alpha + t * a2._alpha; + _thickness[0] = (1 - t) * a1._thickness[0] + t * a2._thickness[0]; + _thickness[1] = (1 - t) * a1._thickness[1] + t * a2._thickness[1]; + for (int i = 0; i < 3; ++i) + _color[i] = (1 - t) * a1._color[i] + t * a2._color[i]; + + _visible = true; + + // FIXME: to be checked (and enhanced) + if ((a1._userAttributesReal) && (a2._userAttributesReal)) { + if (a1._userAttributesReal->size() == a2._userAttributesReal->size()) { + _userAttributesReal = new realMap; + realMap::iterator it1 = a1._userAttributesReal->begin(), it1end = a1._userAttributesReal->end(); + realMap::iterator it2 = a2._userAttributesReal->begin(), it2end = a2._userAttributesReal->end(); + for (; it1 != it1end; ++it1) { + (*_userAttributesReal)[(*it1).first] = ((1 - t) * (*it1).second + t * (*it2).second); + } + } + } + else { + _userAttributesReal = NULL; + } + if ((a1._userAttributesVec2f) && (a2._userAttributesVec2f)) { + if (a1._userAttributesVec2f->size() == a2._userAttributesVec2f->size()) { + _userAttributesVec2f = new Vec2fMap; + Vec2fMap::iterator it1 = a1._userAttributesVec2f->begin(), it1end = a1._userAttributesVec2f->end(); + Vec2fMap::iterator it2 = a2._userAttributesVec2f->begin(), it2end = a2._userAttributesVec2f->end(); + for (; it1 != it1end; ++it1) { + (*_userAttributesVec2f)[(*it1).first] = ((1 - t) * (*it1).second + t * (*it2).second); + } + } + } + else { + _userAttributesVec2f = NULL; + } + if ((a1._userAttributesVec3f) && (a2._userAttributesVec3f)) { + if (a1._userAttributesVec3f->size() == a2._userAttributesVec3f->size()) { + _userAttributesVec3f = new Vec3fMap; + Vec3fMap::iterator it1 = a1._userAttributesVec3f->begin(), it1end = a1._userAttributesVec3f->end(); + Vec3fMap::iterator it2 = a2._userAttributesVec3f->begin(), it2end = a2._userAttributesVec3f->end(); + for (; it1 != it1end; ++it1) { + (*_userAttributesVec3f)[(*it1).first] = ((1 - t) * (*it1).second + t * (*it2).second); + } + } + } + else { + _userAttributesVec3f = NULL; + } +} + +StrokeAttribute::~StrokeAttribute() +{ + if (_userAttributesReal) { + _userAttributesReal->clear(); + delete _userAttributesReal; + } + if (_userAttributesVec2f) { + _userAttributesVec2f->clear(); + delete _userAttributesVec2f; + } + if (_userAttributesVec3f) { + _userAttributesVec3f->clear(); + delete _userAttributesVec3f; + } +} + +StrokeAttribute& StrokeAttribute::operator=(const StrokeAttribute& iBrother) +{ + int i; + _alpha = iBrother._alpha; + _thickness[0] = iBrother._thickness[0]; + _thickness[1] = iBrother._thickness[1]; + for (i = 0; i < 3; ++i) + _color[i] = iBrother._color[i]; + _visible = iBrother._visible; + if (iBrother._userAttributesReal) { + if (!_userAttributesReal) + _userAttributesReal = new realMap; + _userAttributesReal = new realMap(*(iBrother._userAttributesReal)); + } + else { + _userAttributesReal = NULL; + } + if (iBrother._userAttributesVec2f) { + if (!_userAttributesVec2f) + _userAttributesVec2f = new Vec2fMap; + _userAttributesVec2f = new Vec2fMap(*(iBrother._userAttributesVec2f)); + } + else { + _userAttributesVec2f = NULL; + } + if (iBrother._userAttributesVec3f) { + if (!_userAttributesVec3f) + _userAttributesVec3f = new Vec3fMap; + _userAttributesVec3f = new Vec3fMap(*(iBrother._userAttributesVec3f)); + } + else { + _userAttributesVec3f = NULL; + } + return *this; +} + +float StrokeAttribute::getAttributeReal(const char *iName) const +{ + if (!_userAttributesReal) { + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "StrokeAttribute warning: no real attribute was defined" << endl; + } + return 0.0f; + } + realMap::iterator a = _userAttributesReal->find(iName); + if (a == _userAttributesReal->end()) { + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "StrokeAttribute warning: no real attribute was added with the name " << iName << endl; + } + return 0.0f; + } + return (*a).second; +} + +Vec2f StrokeAttribute::getAttributeVec2f(const char *iName) const +{ + if (!_userAttributesVec2f) { + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "StrokeAttribute warning: no Vec2f attribute was defined" << endl; + } + return 0; + } + Vec2fMap::iterator a = _userAttributesVec2f->find(iName); + if (a == _userAttributesVec2f->end()) { + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "StrokeAttribute warning: no Vec2f attribute was added with the name " << iName << endl; + } + return 0; + } + return (*a).second; +} + +Vec3f StrokeAttribute::getAttributeVec3f(const char *iName) const +{ + if (!_userAttributesVec3f) { + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "StrokeAttribute warning: no Vec3f attribute was defined" << endl; + } + return 0; + } + Vec3fMap::iterator a = _userAttributesVec3f->find(iName); + if (a == _userAttributesVec3f->end()) { + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "StrokeAttribute warning: no Vec3f attribute was added with the name " << iName << endl; + } + return 0; + } + return (*a).second; +} + +bool StrokeAttribute::isAttributeAvailableReal(const char *iName) const +{ + if (!_userAttributesReal) { + return false; + } + realMap::iterator a = _userAttributesReal->find(iName); + if (a == _userAttributesReal->end()) { + return false; + } + return true; +} + +bool StrokeAttribute::isAttributeAvailableVec2f(const char *iName) const +{ + if (!_userAttributesVec2f) { + return false; + } + Vec2fMap::iterator a = _userAttributesVec2f->find(iName); + if (a == _userAttributesVec2f->end()) { + return false; + } + return true; +} + +bool StrokeAttribute::isAttributeAvailableVec3f(const char *iName) const +{ + if (!_userAttributesVec3f) { + return false; + } + Vec3fMap::iterator a = _userAttributesVec3f->find(iName); + if (a == _userAttributesVec3f->end()) { + return false; + } + return true; +} + +void StrokeAttribute::setAttributeReal(const char *iName, float att) +{ + if (!_userAttributesReal) + _userAttributesReal = new realMap; + (*_userAttributesReal)[iName] = att; +} + +void StrokeAttribute::setAttributeVec2f(const char *iName, const Vec2f& att) +{ + if (!_userAttributesVec2f) + _userAttributesVec2f = new Vec2fMap; + (*_userAttributesVec2f)[iName] = att; +} + +void StrokeAttribute::setAttributeVec3f(const char *iName, const Vec3f& att) +{ + if (!_userAttributesVec3f) + _userAttributesVec3f = new Vec3fMap; + (*_userAttributesVec3f)[iName] = att; +} + + +/**********************************/ +/* */ +/* */ +/* StrokeVertex */ +/* */ +/* */ +/**********************************/ + +StrokeVertex::StrokeVertex() : CurvePoint() +{ + _CurvilignAbscissa = 0.0f; + _StrokeLength = 0.0f; +} + +StrokeVertex::StrokeVertex(const StrokeVertex& iBrother) : CurvePoint(iBrother) +{ + _Attribute = iBrother._Attribute; + _CurvilignAbscissa = 0.0f; + _StrokeLength = 0.0f; +} + +StrokeVertex::StrokeVertex(SVertex *iSVertex) : CurvePoint(iSVertex, 0, 0.0f) +{ + _CurvilignAbscissa = 0.0f; + _StrokeLength = 0.0f; +} + +StrokeVertex::StrokeVertex(CurvePoint *iPoint) : CurvePoint(*iPoint) +{ + _CurvilignAbscissa = 0.0f; + _StrokeLength = 0.0f; +} + +StrokeVertex::StrokeVertex(StrokeVertex *iA, StrokeVertex *iB, float t3) : CurvePoint(iA, iB, t3) +{ + // interpolate attributes: + _Attribute = StrokeAttribute(iA->attribute(), iB->attribute(), t3); + _CurvilignAbscissa = (1 - t3) * iA->curvilinearAbscissa() + t3 * iB->curvilinearAbscissa(); + _StrokeLength = iA->strokeLength(); +} + +StrokeVertex::StrokeVertex(SVertex *iSVertex, const StrokeAttribute& iAttribute) : CurvePoint(iSVertex, 0, 0.0f) +{ + _Attribute = iAttribute; + _CurvilignAbscissa = 0.0f; + _StrokeLength = 0.0f; +} + +StrokeVertex::~StrokeVertex() {} + +StrokeVertex& StrokeVertex::operator=(const StrokeVertex& iBrother) +{ + ((CurvePoint*)this)->operator=(iBrother); + _Attribute = iBrother._Attribute; + + _CurvilignAbscissa = 0.0f; + + _StrokeLength = 0.0f; + return *this; +} + + + +/**********************************/ +/* */ +/* */ +/* Stroke */ +/* */ +/* */ +/**********************************/ + +Stroke::Stroke() +{ + _Length = 0; + _id = 0; + _sampling = FLT_MAX; + //_mediumType = DEFAULT_STROKE; + _mediumType = OPAQUE_MEDIUM; + _textureId = 0; + _tips = false; + _rep = NULL; +} + +Stroke::Stroke(const Stroke& iBrother) +{ + for (vertex_container::const_iterator v = iBrother._Vertices.begin(), vend = iBrother._Vertices.end(); + v != vend; + v++) + { + _Vertices.push_back(*v); + } + _Length = 0; + _id = iBrother._id; + _ViewEdges = iBrother._ViewEdges; + _sampling = iBrother._sampling; + _mediumType = iBrother._mediumType; + _textureId = iBrother._textureId; + _tips = iBrother._tips; + if (iBrother._rep) + _rep = new StrokeRep(*(iBrother._rep)); + else + _rep = NULL; +} + +Stroke::~Stroke() +{ + if (!_Vertices.empty()) { + for (vertex_container::iterator v = _Vertices.begin(), vend = _Vertices.end(); v != vend; v++) { + delete (*v); + } + _Vertices.clear(); + } + + _ViewEdges.clear(); + if (_rep) { + delete _rep; + _rep = NULL; + } +} + +Stroke& Stroke::operator=(const Stroke& iBrother) +{ + if (!_Vertices.empty()) + _Vertices.clear(); + + for (vertex_container::const_iterator v = iBrother._Vertices.begin(), vend = iBrother._Vertices.end(); + v != vend; + v++) + { + _Vertices.push_back(*v); + } + _Length = iBrother._Length; + _id = iBrother._id; + _ViewEdges = iBrother._ViewEdges; + _sampling = iBrother._sampling; + if (_rep) + delete _rep; + if (iBrother._rep) + _rep = new StrokeRep(*(iBrother._rep)); + return *this; +} + +void Stroke::setLength(float iLength) +{ + _Length = iLength; + for (vertex_container::iterator v = _Vertices.begin(), vend = _Vertices.end(); v != vend; ++v) { + (*v)->setStrokeLength(iLength); + } +} + +float Stroke::ComputeSampling(int iNVertices) +{ + if (iNVertices <= (int)_Vertices.size()) //soc + return _sampling; + + float sampling = _Length / (float)(iNVertices - _Vertices.size() + 1); + return sampling; +} + +class StrokeSegment +{ +public: + StrokeInternal::StrokeVertexIterator _begin; + StrokeInternal::StrokeVertexIterator _end; + float _length; + int _n; + float _sampling; + bool _resampled; + + StrokeSegment(StrokeInternal::StrokeVertexIterator ibegin, StrokeInternal::StrokeVertexIterator iend, + float ilength, int in, float isampling) + { + _begin = ibegin; + _end = iend; + _length = ilength; + _n = in; + _sampling = isampling; + _resampled = false; + } +}; + +void Stroke::Resample(int iNPoints) +{ + int vertsize = strokeVerticesSize(); + if (iNPoints <= vertsize) + return; + + StrokeInternal::StrokeVertexIterator it = strokeVerticesBegin(); + StrokeInternal::StrokeVertexIterator next = it; + ++next; + StrokeInternal::StrokeVertexIterator itend = strokeVerticesEnd(); + + vertex_container newVertices; + real t = 0.0f; + StrokeVertex *newVertex = NULL; + vector<StrokeSegment> strokeSegments; + int N = 0; + float meanlength = 0; + int nsegments = 0; + while ((it != itend) && (next != itend)) { + Vec2r a((it)->getPoint()); + Vec2r b((next)->getPoint()); + Vec2r vec_tmp(b - a); + real norm_var = vec_tmp.norm(); + int numberOfPointsToAdd = (int)floor((iNPoints - strokeVerticesSize()) * norm_var / _Length); + float csampling = norm_var / (float)(numberOfPointsToAdd + 1); + strokeSegments.push_back(StrokeSegment(it, next, norm_var, numberOfPointsToAdd, csampling)); + N += numberOfPointsToAdd; + meanlength += norm_var; + ++nsegments; + ++it; + ++next; + } + meanlength /= (float)nsegments; + + // if we don't have enough points let's resample finer some segments + int NPointsToAdd = iNPoints - vertsize; + bool checkEveryone = false; + while (N < NPointsToAdd) { + for (vector<StrokeSegment>::iterator s = strokeSegments.begin(), send = strokeSegments.end(); s != send; ++s) { + if (s->_sampling == 0.0f) + continue; + + if (s->_resampled == false) { + if ((!checkEveryone) && (s->_length < meanlength)) + continue; + //resample + s->_n = s->_n + 1; + s->_sampling = s->_length / (float)(s->_n + 1); + s->_resampled = true; + N++; + if (N == NPointsToAdd) + break; + } + } + checkEveryone = true; + } + //actually resample: + for (vector<StrokeSegment>::iterator s = strokeSegments.begin(), send = strokeSegments.end(); s != send; ++s) { + newVertices.push_back(&(*(s->_begin))); + if (s->_sampling < _sampling) + _sampling = s->_sampling; + + t = s->_sampling / s->_length; + for (int i = 0; i < s->_n; ++i) { + newVertex = new StrokeVertex(&(*(s->_begin)), &(*(s->_end)), t); + newVertices.push_back(newVertex); + t += s->_sampling / s->_length; + } + it = s->_begin; + next = s->_end; + } + + // add last: + ++it; + ++next; + if ((it != itend) && (next == itend)/* && (t == 0.0f)*/) + newVertices.push_back(&(*it)); + + int newsize = newVertices.size(); + if (newsize != iNPoints) + cerr << "Warning: incorrect points number" << endl; + + _Vertices.clear(); + _Vertices = newVertices; + newVertices.clear(); + + if (_rep) { + delete _rep; + _rep = new StrokeRep(this); + } +} + +void Stroke::Resample(float iSampling) +{ + //cerr << "old size :" << strokeVerticesSize() << endl; + if (iSampling == 0) + return; + if (iSampling >= _sampling) + return; + + _sampling = iSampling; + // Resample... + //real curvilinearLength = 0.0f; + vertex_container newVertices; + real t = 0.0f; + const real limit = 0.99; + StrokeVertex *newVertex = NULL; + StrokeInternal::StrokeVertexIterator it = strokeVerticesBegin(); + StrokeInternal::StrokeVertexIterator next = it; + ++next; + StrokeInternal::StrokeVertexIterator itend = strokeVerticesEnd(); + while ((it != itend) && (next != itend)) { + newVertices.push_back(&(*it)); + Vec2r a((it)->getPoint()); + Vec2r b((next)->getPoint()); + Vec2r vec_tmp(b - a); + real norm_var = vec_tmp.norm(); + if (norm_var <= _sampling) { + //curvilinearLength += norm_var; + ++it; + ++next; + continue; + } + + //curvilinearLength += _sampling; + t = _sampling / norm_var; + while (t < limit) { + newVertex = new StrokeVertex(&(*it), &(*next), t); + //newVertex->setCurvilinearAbscissa(curvilinearLength); + newVertices.push_back(newVertex); + t = t + _sampling / norm_var; + } + ++it; + ++next; + } + // add last: + if ((it != itend) && (next == itend)/* && (t == 0.f)*/) + newVertices.push_back(&(*it)); + + _Vertices.clear(); + _Vertices = newVertices; + newVertices.clear(); + + if (_rep) { + delete _rep; + _rep = new StrokeRep(this); + } +} + +void Stroke::RemoveVertex(StrokeVertex *iVertex) +{ + vertex_container::iterator it = _Vertices.begin(), itend = _Vertices.end(); + for (; it != itend; ++it) { + if ((*it) == iVertex) { + delete iVertex; + it = _Vertices.erase(it); // it is now the element just after the erased element + break; + } + } + UpdateLength(); +} + +void Stroke::InsertVertex(StrokeVertex *iVertex, StrokeInternal::StrokeVertexIterator next) +{ + vertex_container::iterator it = _Vertices.begin(), itend = _Vertices.end(); + + vertex_container::iterator itnext = next.getIt(); + _Vertices.insert(itnext, iVertex); + UpdateLength(); +} + +void Stroke::UpdateLength() +{ + // recompute curvilinear abscissa and stroke length + float curvabsc = 0.0f; + vertex_container::iterator it = _Vertices.begin(), itend = _Vertices.end(); + vertex_container::iterator previous = it; + for (; it != itend; ++it) { + curvabsc += ((*it)->getPoint() - (*previous)->getPoint()).norm(); + (*it)->setCurvilinearAbscissa(curvabsc); + previous = it; + } + _Length = curvabsc; + for (it = _Vertices.begin(); it != itend; ++it) { + (*it)->setStrokeLength(_Length); + } +} + +//! embedding vertex iterator +Stroke::const_vertex_iterator Stroke::vertices_begin() const +{ + return const_vertex_iterator(_Vertices.begin(), _Vertices.begin(), _Vertices.end()); +} + +Stroke::const_vertex_iterator Stroke::vertices_end() const +{ + return const_vertex_iterator(_Vertices.end(), _Vertices.begin(), _Vertices.end()); +} + +Stroke::vertex_iterator Stroke::vertices_end() +{ + return vertex_iterator(_Vertices.end(), _Vertices.begin(), _Vertices.end()); +} + +StrokeInternal::StrokeVertexIterator Stroke::strokeVerticesBegin(float t) +{ + if ((t != 0) && (t < _sampling)) + Resample(t); + return StrokeInternal::StrokeVertexIterator(this->_Vertices.begin(), this->_Vertices.begin(), + this->_Vertices.end()); +} + +StrokeInternal::StrokeVertexIterator Stroke::strokeVerticesEnd() +{ + return StrokeInternal::StrokeVertexIterator(this->_Vertices.end(), this->_Vertices.begin(), this->_Vertices.end()); +} + +Interface0DIterator Stroke::verticesBegin() +{ +Interface0DIterator ret(new StrokeInternal::StrokeVertexIterator(this->_Vertices.begin(), this->_Vertices.begin(), + this->_Vertices.end())); +return ret; +} + +Interface0DIterator Stroke::verticesEnd() +{ + Interface0DIterator ret(new StrokeInternal::StrokeVertexIterator(this->_Vertices.end(), this->_Vertices.begin(), + this->_Vertices.end())); + return ret; +} + +Interface0DIterator Stroke::pointsBegin(float t) +{ + return verticesBegin(); // FIXME +} + +Interface0DIterator Stroke::pointsEnd(float t) +{ + return verticesEnd(); +} + +void Stroke::ScaleThickness(float iFactor) +{ + for (vertex_container::iterator it = _Vertices.begin(), itend = _Vertices.end(); it != itend; ++it) { + StrokeAttribute& attr = (*it)->attribute(); + attr.setThickness(iFactor * attr.getThicknessR(), iFactor * attr.getThicknessL()); + } +} + +void Stroke::Render(const StrokeRenderer *iRenderer) +{ + if (!_rep) + _rep = new StrokeRep(this); + iRenderer->RenderStrokeRep(_rep); +} + +void Stroke::RenderBasic(const StrokeRenderer *iRenderer) +{ + if (!_rep) + _rep = new StrokeRep(this); + iRenderer->RenderStrokeRepBasic(_rep); +} + +Stroke::vertex_iterator Stroke::vertices_begin(float sampling) +{ + // Resample if necessary + if ((sampling != 0) && (sampling < _sampling)) + Resample(sampling); + return vertex_iterator(_Vertices.begin(), _Vertices.begin(), _Vertices.end()); + //return _Vertices.begin(); +} + +#if 0 +Stroke::vertex_iterator Stroke::vertices_last() +{ + vertex_iterator res = vertices_begin(); + vertex_iterator next = res; + ++next; + while (!next.end()) { + ++next; + ++res; + } + return res; +} + +Stroke::const_vertex_iterator Stroke::vertices_last() const +{ + const_vertex_iterator res = vertices_begin(); + const_vertex_iterator next = res; + ++next; + while (!next.end()) { + ++next; + ++res; + } + return res; +} + +Stroke::vertex_container::reverse_iterator Stroke::vertices_last(float sampling) +{ + // Resample if necessary + if (sampling < _sampling) + Resample(sampling); + return _Vertices.rbegin(); +} + + +inline Vec3r shaded_color(int iCombination = 0) const; + +inline Vec<3, real> Stroke::orientation2d(const_vertex_iterator it) const +{ + return iterator_edge_orientation2d_function<Stroke, const_vertex_iterator>(this, it); +} + +Vec3r Stroke::orientation2d(int iCombination) const +{ + return edge_orientation2d_function<Stroke>(*this, iCombination); +} + +inline Vec3r Stroke::orientation3d(const_vertex_iterator it) const +{ + return iterator_edge_orientation3d_function<Stroke, const_vertex_iterator>(*this, it); +} + +Vec3r Stroke::orientation3d(int iCombination) const +{ + return edge_orientation3d_function<Stroke>(*this, iCombination); +} + +Material Stroke::material() const +{ + const_vertex_iterator v = vertices_begin(), vend = strokeVerticesEnd(); + Material mat = (*v)->material(); + for (; v != vend; ++v) { + if (mat != (*v)->material()) + Exception::raiseException(); + } + return mat; +} + +int Stroke::qi() const +{ + const_vertex_iterator v = vertices_begin(), vend = vertices_end(); + int qi_= (*v)->qi(); + for (; v != vend; ++v) { + if ((*v)->qi() != qi_) + Exception::raiseException(); + } + return qi_; +} + +inline occluder_container::const_iterator occluders_begin() const +{ + return _FEdgeA->occluders().begin(); +} + +inline occluder_container::const_iterator occluders_end() const +{ + return _FEdgeA->occluders().end(); +} + +int Stroke::occluders_size() const +{ + return qi(); +} + +bool Stroke::occluders_empty() const +{ + const_vertex_iterator v = vertices_begin(), vend = vertices_end(); + bool empty = (*v)->occluders_empty(); + for (; v != vend; ++v) { + if ((*v)->occluders_empty() != empty) + Exception::raiseException(); + } + return empty; +} + +#if 0 +inline const polygon3d& occludee() const +{ + return *(_FEdgeA->aFace()); +} +#endif + +const SShape * Stroke::occluded_shape() const +{ + const_vertex_iterator v = vertices_begin(), vend = vertices_end(); + const SShape *sshape = (*v)->occluded_shape(); + for (; v != vend; ++v) { + if ((*v)->occluded_shape() != sshape) + Exception::raiseException(); + } + return sshape; +} + +const bool Stroke::occludee_empty() const +{ + const_vertex_iterator v = vertices_begin(), vend = vertices_end(); + bool empty = (*v)->occludee_empty(); + for (; v != vend; ++v) { + if ((*v)->occludee_empty() != empty) + Exception::raiseException(); + } + return empty; +} + +const SShape * Stroke::shape() const +{ + const_vertex_iterator v = vertices_begin(), vend = vertices_end(); + const SShape *sshape = (*v)->shape(); + for (; v != vend; ++v) { + if ((*v)->shape() != sshape) + Exception::raiseException(); + } + return sshape; +} + +real Stroke::z_discontinuity(int iCombination) const +{ + return z_discontinuity_edge_function<Stroke>(*this, iCombination); +} + +Vec3r Stroke::curvature2d_as_vector(int iCombination) const +{ + return curvature2d_as_vector_edge_function<Stroke>(*this, iCombination); +} + +real Stroke::curvature2d_as_angle(int iCombination) const +{ + return curvature2d_as_angle_edge_function<Stroke>(*this, iCombination); +} + +float Stroke::shape_importance(int iCombination) const +{ + return shape_importance_edge_function<Stroke>(*this, iCombination); +} + + +float Stroke::local_average_depth(int iCombination ) const +{ + return local_average_depth_edge_function<Stroke >(*this, iCombination); +} + +float Stroke::local_depth_variance(int iCombination) const +{ + return local_depth_variance_edge_function<Stroke>(*this, iCombination); +} + +real Stroke::local_average_density(float sigma , int iCombination ) const +{ + return density_edge_function<Stroke>(*this, iCombination); +} +#endif |