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/*=========================================================================
Program: VMTK
Module: $RCSfile: vtkvmtkInternalTetrahedraExtractor.h,v $
Language: C++
Date: $Date: 2006/04/06 16:46:43 $
Version: $Revision: 1.5 $
Copyright (c) Luca Antiga, David Steinman. All rights reserved.
See LICENCE file for details.
Portions of this code are covered under the VTK copyright.
See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.htm
for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
// .NAME vtkvmtkInternalTetrahedraExtractor - Extract internal tetrahedra from a Delaunay tessellation.
// .SECTION Description
// This class takes in input the Delaunay tessellation of a point set and extracts internal tetrahedra based on outward oriented point normals (to be provided as input point data array). A tetrahedron \f$T_i\f$ is retained if
// \f[(x_j - c_i) \cdot n_j \geq 0 \qquad \forall x_j \in T_i \f]
// where \f$x_i\f$ are the vertices of \f$T_i\f$, \f$c_i\f$ its circumcenter and \f$n_j\f$ the normals at the vertices.
// It is possible to properly handle capped regions (generated with vtkCapPolyData) by activating UseCaps and providing the ids of cap centers.
// .SECTION See Also
// vtkCapPolyData
#ifndef __vtkvmtkInternalTetrahedraExtractor_h
#define __vtkvmtkInternalTetrahedraExtractor_h
#include "vtkUnstructuredGridAlgorithm.h"
#include "vtkPolyData.h"
#include "vtkIdList.h"
//#include "vtkvmtkComputationalGeometryWin32Header.h"
#include "vtkvmtkWin32Header.h"
class VTK_VMTK_COMPUTATIONAL_GEOMETRY_EXPORT vtkvmtkInternalTetrahedraExtractor : public vtkUnstructuredGridAlgorithm
{
public:
vtkTypeRevisionMacro(vtkvmtkInternalTetrahedraExtractor,vtkUnstructuredGridAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
static vtkvmtkInternalTetrahedraExtractor *New();
// Description:
// Set/Get the name of the array containing outward oriented point normals.
vtkSetStringMacro(OutwardNormalsArrayName);
vtkGetStringMacro(OutwardNormalsArrayName);
// Description:
// Turn on/off special handling of caps.
vtkSetMacro(UseCaps,int);
vtkGetMacro(UseCaps,int);
vtkBooleanMacro(UseCaps,int);
// Description:
// Set/Get the ids of cap centers.
vtkSetObjectMacro(CapCenterIds,vtkIdList);
vtkGetObjectMacro(CapCenterIds,vtkIdList);
vtkSetMacro(Tolerance,double);
vtkGetMacro(Tolerance,double);
// Description:
// Turn on/off removal of surface slivers.
vtkSetMacro(RemoveSubresolutionTetrahedra,int);
vtkGetMacro(RemoveSubresolutionTetrahedra,int);
vtkBooleanMacro(RemoveSubresolutionTetrahedra,int);
vtkSetMacro(SubresolutionFactor,double);
vtkGetMacro(SubresolutionFactor,double);
vtkSetObjectMacro(Surface,vtkPolyData);
vtkGetObjectMacro(Surface,vtkPolyData);
protected:
vtkvmtkInternalTetrahedraExtractor();
~vtkvmtkInternalTetrahedraExtractor();
virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
int UseCaps;
vtkIdList* CapCenterIds;
char* OutwardNormalsArrayName;
double Tolerance;
int RemoveSubresolutionTetrahedra;
vtkPolyData* Surface;
double SubresolutionFactor;
private:
vtkvmtkInternalTetrahedraExtractor(const vtkvmtkInternalTetrahedraExtractor&); // Not implemented.
void operator=(const vtkvmtkInternalTetrahedraExtractor&); // Not implemented.
};
#endif
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