diff options
Diffstat (limited to 'source/blender/freestyle/intern/geometry/GeomCleaner.h')
| -rw-r--r-- | source/blender/freestyle/intern/geometry/GeomCleaner.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/geometry/GeomCleaner.h b/source/blender/freestyle/intern/geometry/GeomCleaner.h new file mode 100644 index 00000000000..334145f3bcd --- /dev/null +++ b/source/blender/freestyle/intern/geometry/GeomCleaner.h @@ -0,0 +1,227 @@ +/* + * ***** 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 ***** + */ + +#ifndef __GEOMCLEANER_H__ +#define __GEOMCLEANER_H__ + +/** \file blender/freestyle/intern/geometry/GeomCleaner.h + * \ingroup freestyle + * \brief Class to define a cleaner of geometry providing a set of useful tools + * \author Stephane Grabli + * \date 04/03/2002 + */ + +#include "Geom.h" + +#include "../system/FreestyleConfig.h" + +using namespace Geometry; + +class LIB_GEOMETRY_EXPORT GeomCleaner +{ +public: + inline GeomCleaner() {} + inline ~GeomCleaner() {} + + /*! Sorts an array of Indexed vertices + * iVertices + * Array of vertices to sort. It is organized as a float series of vertex coordinates: XYZXYZXYZ... + * iVSize + * The size of iVertices array. + * iIndices + * The array containing the vertex indices (used to refer to the vertex coordinates in an indexed face). Each + * element is an unsignedeger multiple of 3. + * iISize + * The size of iIndices array + * oVertices + * Output of sorted vertices. A vertex v1 precedes another one v2 in this array if v1.x<v2.x, + * or v1.x=v2.x && v1.y < v2.y or v1.x=v2.y && v1.y=v2.y && v1.z < v2.z. + * The array is organized as a 3-float serie giving the vertices coordinates: XYZXYZXYZ... + * oIndices + * Output corresponding to the iIndices array but reorganized in order to match the sorted vertex array. + */ + static void SortIndexedVertexArray(const float *iVertices, unsigned iVSize, const unsigned *iIndices, + unsigned iISize, real **oVertices, unsigned **oIndices); + + /*! Compress a SORTED indexed vertex array by eliminating multiple appearing occurences of a single vertex. + * iVertices + * The SORTED vertex array to compress. It is organized as a float series of vertex coordinates: XYZXYZXYZ... + * iVSize + * The size of iVertices array. + * iIndices + * The array containing the vertex indices (used to refer to the vertex coordinates in an indexed face). + * Each element is an unsignedeger multiple of 3. + * iISize + * The size of iIndices array + * oVertices + * The vertex array, result of the compression. + * The array is organized as a 3-float serie giving the vertices coordinates: XYZXYZXYZ... + * oVSize + * The size of oVertices. + * oIndices + * The indices array, reorganized to match the compressed oVertices array. + */ + static void CompressIndexedVertexArray(const real *iVertices, unsigned iVSize, const unsigned *iIndices, + unsigned iISize, real **oVertices, unsigned *oVSize, unsigned **oIndices); + + /*! Sorts and compress an array of indexed vertices. + * iVertices + * The vertex array to sort then compress. It is organized as a float series of + * vertex coordinates: XYZXYZXYZ... + * iVSize + * The size of iVertices array. + * iIndices + * The array containing the vertex indices (used to refer to the vertex coordinates in an indexed face). + * Each element is an unsignedeger multiple of 3. + * iISize + * The size of iIndices array + * oVertices + * The vertex array, result of the sorting-compression. + * The array is organized as a 3-float serie giving the vertices coordinates: XYZXYZXYZ... + * oVSize + * The size of oVertices. + * oIndices + * The indices array, reorganized to match the sorted and compressed oVertices array. + */ + static void SortAndCompressIndexedVertexArray(const float *iVertices, unsigned iVSize, const unsigned *iIndices, + unsigned iISize, real **oVertices, unsigned *oVSize, + unsigned **oIndices); + + /*! Cleans an indexed vertex array. (Identical to SortAndCompress except that we use here a hash table + * to create the new array.) + * iVertices + * The vertex array to sort then compress. It is organized as a float series of + * vertex coordinates: XYZXYZXYZ... + * iVSize + * The size of iVertices array. + * iIndices + * The array containing the vertex indices (used to refer to the vertex coordinates in an indexed face). + * Each element is an unsignedeger multiple of 3. + * iISize + * The size of iIndices array + * oVertices + * The vertex array, result of the sorting-compression. + * The array is organized as a 3-float serie giving the vertices coordinates: XYZXYZXYZ... + * oVSize + * The size of oVertices. + * oIndices + * The indices array, reorganized to match the sorted and compressed oVertices array. + */ + static void CleanIndexedVertexArray(const float *iVertices, unsigned iVSize, const unsigned *iIndices, + unsigned iISize, real **oVertices, unsigned *oVSize, unsigned **oIndices); +}; + + +/*! Binary operators */ +//inline bool operator<(const IndexedVertex& iv1, const IndexedVertex& iv2); + +/*! Class Indexed Vertex. Used to represent an indexed vertex by storing the vertex coordinates as well as its index */ +class IndexedVertex +{ +private: + Vec3r _Vector; + unsigned _index; + +public: + inline IndexedVertex() {} + + inline IndexedVertex(Vec3r iVector, unsigned iIndex) + { + _Vector = iVector; + _index = iIndex; + } + + /*! accessors */ + inline const Vec3r& vector() const + { + return _Vector; + } + + inline unsigned index() + { + return _index; + } + + inline real x() + { + return _Vector[0]; + } + + inline real y() + { + return _Vector[1]; + } + + inline real z() + { + return _Vector[2]; + } + + /*! modifiers */ + inline void setVector(const Vec3r& iVector) + { + _Vector = iVector; + } + + inline void setIndex(unsigned iIndex) + { + _index = iIndex; + } + + /*! operators */ + IndexedVertex& operator=(const IndexedVertex& iv) + { + _Vector = iv._Vector; + _index = iv._index; + return *this; + } + + inline real operator[](const unsigned i) + { + return _Vector[i]; + } + + //friend inline bool operator<(const IndexedVertex& iv1, const IndexedVertex& iv2); + inline bool operator<(const IndexedVertex& v) const + { + return (_Vector < v._Vector); + } + + inline bool operator==(const IndexedVertex& v) + { + return (_Vector == v._Vector); + } +}; + +#if 0 +bool operator<(const IndexedVertex& iv1, const IndexedVertex& iv2) +{ + return iv1.operator<(iv2); +} +#endif + +#endif // __GEOMCLEANER_H__ |