vtkPolyDataPointSampler.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkPolyDataPointSampler.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.

=========================================================================*/
#ifndef vtkPolyDataPointSampler_h
#define vtkPolyDataPointSampler_h

#include "vtkFiltersModelingModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"

class VTKFILTERSMODELING_EXPORT vtkPolyDataPointSampler : public vtkPolyDataAlgorithm
{
public:
  static vtkPolyDataPointSampler *New();


  vtkTypeMacro(vtkPolyDataPointSampler,vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkSetClampMacro(Distance,double,0.0,VTK_FLOAT_MAX);
  vtkGetMacro(Distance,double);


  vtkGetMacro(GenerateVertexPoints,vtkTypeBool);
  vtkSetMacro(GenerateVertexPoints,vtkTypeBool);
  vtkBooleanMacro(GenerateVertexPoints,vtkTypeBool);


  vtkGetMacro(GenerateEdgePoints,vtkTypeBool);
  vtkSetMacro(GenerateEdgePoints,vtkTypeBool);
  vtkBooleanMacro(GenerateEdgePoints,vtkTypeBool);


  vtkGetMacro(GenerateInteriorPoints,vtkTypeBool);
  vtkSetMacro(GenerateInteriorPoints,vtkTypeBool);
  vtkBooleanMacro(GenerateInteriorPoints,vtkTypeBool);


  vtkGetMacro(GenerateVertices,vtkTypeBool);
  vtkSetMacro(GenerateVertices,vtkTypeBool);
  vtkBooleanMacro(GenerateVertices,vtkTypeBool);

protected:
  vtkPolyDataPointSampler();
  ~vtkPolyDataPointSampler() override {}

  int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override;

  double Distance;
  double Distance2;

  vtkTypeBool GenerateVertexPoints;
  vtkTypeBool GenerateEdgePoints;
  vtkTypeBool GenerateInteriorPoints;
  vtkTypeBool GenerateVertices;

  void SampleEdge(vtkPoints *pts, double x0[3], double x1[3]);
  void SampleTriangle(vtkPoints *newPts, vtkPoints *inPts,
                      vtkIdType *pts);
  void SamplePolygon(vtkPoints *newPts, vtkPoints *inPts,
                      vtkIdType npts, vtkIdType *pts);

private:
  vtkPolyDataPointSampler(const vtkPolyDataPointSampler&) = delete;
  void operator=(const vtkPolyDataPointSampler&) = delete;
};

#endif