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/*=========================================================================
Program: Visualization Toolkit
Module: vtkApproximatingSubdivisionFilter.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.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 notice for more information.
=========================================================================*/
// .NAME vtkApproximatingSubdivisionFilter - generate a subdivision surface using an Approximating Scheme
// .SECTION Description
// vtkApproximatingSubdivisionFilter is an abstract class that defines
// the protocol for Approximating subdivision surface filters.
// .SECTION Thanks
// This work was supported by PHS Research Grant No. 1 P41 RR13218-01
// from the National Center for Research Resources.
#ifndef __vtkApproximatingSubdivisionFilter_h
#define __vtkApproximatingSubdivisionFilter_h
#include "vtkPolyDataAlgorithm.h"
class vtkCellArray;
class vtkCellData;
class vtkIdList;
class vtkIntArray;
class vtkPoints;
class vtkPointData;
class VTK_GRAPHICS_EXPORT vtkApproximatingSubdivisionFilter : public vtkPolyDataAlgorithm
{
public:
vtkTypeMacro(vtkApproximatingSubdivisionFilter,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set/get the number of subdivisions.
vtkSetMacro(NumberOfSubdivisions,int);
vtkGetMacro(NumberOfSubdivisions,int);
protected:
vtkApproximatingSubdivisionFilter();
~vtkApproximatingSubdivisionFilter() {};
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
virtual void GenerateSubdivisionPoints (vtkPolyData *inputDS,
vtkIntArray *edgeData,
vtkPoints *outputPts,
vtkPointData *outputPD) = 0;
void GenerateSubdivisionCells (vtkPolyData *inputDS, vtkIntArray *edgeData,
vtkCellArray *outputPolys,
vtkCellData *outputCD);
int FindEdge (vtkPolyData *mesh, vtkIdType cellId, vtkIdType p1,
vtkIdType p2, vtkIntArray *edgeData, vtkIdList *cellIds);
vtkIdType InterpolatePosition (vtkPoints *inputPts, vtkPoints *outputPts,
vtkIdList *stencil, double *weights);
int NumberOfSubdivisions;
private:
vtkApproximatingSubdivisionFilter(const vtkApproximatingSubdivisionFilter&); // Not implemented.
void operator=(const vtkApproximatingSubdivisionFilter&); // Not implemented.
};
#endif
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