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/*
* 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.
*/
#ifndef __GEOMCLEANER_H__
#define __GEOMCLEANER_H__
/** \file
* \ingroup freestyle
* \brief Class to define a cleaner of geometry providing a set of useful tools
*/
#include "Geom.h"
#include "../system/FreestyleConfig.h"
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
namespace Freestyle {
using namespace Geometry;
class 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 series 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,
float **oVertices,
unsigned **oIndices);
/*! Compress a SORTED indexed vertex array by eliminating multiple
* appearing occurrences 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 series 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 float *iVertices,
unsigned iVSize,
const unsigned *iIndices,
unsigned iISize,
float **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 series 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,
float **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 series 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,
float **oVertices,
unsigned *oVSize,
unsigned **oIndices);
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:GeomCleaner")
#endif
};
/*! 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:
Vec3f _Vector;
unsigned _index;
public:
inline IndexedVertex()
{
}
inline IndexedVertex(Vec3f iVector, unsigned iIndex)
{
_Vector = iVector;
_index = iIndex;
}
/*! accessors */
inline const Vec3f &vector() const
{
return _Vector;
}
inline unsigned index()
{
return _index;
}
inline float x()
{
return _Vector[0];
}
inline float y()
{
return _Vector[1];
}
inline float z()
{
return _Vector[2];
}
/*! modifiers */
inline void setVector(const Vec3f &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 float 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);
}
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:IndexedVertex")
#endif
};
#if 0
bool operator<(const IndexedVertex &iv1, const IndexedVertex &iv2)
{
return iv1.operator<(iv2);
}
#endif
} /* namespace Freestyle */
#endif // __GEOMCLEANER_H__
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