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//
// Filename : GeomCleaner.h
// Author : Stephane Grabli
// Purpose : Class to define a cleaner of geometry providing
// a set of useful tools
// Date of creation : 04/03/2002
//
///////////////////////////////////////////////////////////////////////////////
//
// 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 GEOMCLEANER_H
# define GEOMCLEANER_H
# include "../system/FreestyleConfig.h"
# include "Geom.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
{
public:
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);
}
};
//bool operator<(const IndexedVertex& iv1, const IndexedVertex& iv2)
//{
// return iv1.operator<(iv2);
//}
#endif // GEOMCLEANER_H
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