vtkPolyDataPointSampler.h

Go to the documentation of this file.

/*=========================================================================
 
  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 "vtkEdgeTable.h"             // for sampling edges
#include "vtkFiltersModelingModule.h" // For export macro
#include "vtkNew.h"                   // for data members
#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, bool);
  vtkSetMacro(GenerateVertexPoints, bool);
  vtkBooleanMacro(GenerateVertexPoints, bool);
 
 
  vtkGetMacro(GenerateEdgePoints, bool);
  vtkSetMacro(GenerateEdgePoints, bool);
  vtkBooleanMacro(GenerateEdgePoints, bool);
 
 
  vtkGetMacro(GenerateInteriorPoints, bool);
  vtkSetMacro(GenerateInteriorPoints, bool);
  vtkBooleanMacro(GenerateInteriorPoints, bool);
 
 
  vtkGetMacro(GenerateVertices, bool);
  vtkSetMacro(GenerateVertices, bool);
  vtkBooleanMacro(GenerateVertices, bool);
 
 
  vtkGetMacro(InterpolatePointData, bool);
  vtkSetMacro(InterpolatePointData, bool);
  vtkBooleanMacro(InterpolatePointData, bool);
 
protected:
  vtkPolyDataPointSampler();
  ~vtkPolyDataPointSampler() override {}
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
  double Distance;
  double Distance2;
 
  bool GenerateVertexPoints;
  bool GenerateEdgePoints;
  bool GenerateInteriorPoints;
  bool GenerateVertices;
 
  bool InterpolatePointData;
 
  // Internal scratch arrays supporting point data interpolation, and
  // sampling edges.
  vtkNew<vtkEdgeTable> EdgeTable;
  double TriWeights[3];
  vtkNew<vtkIdList> TriIds;
  double QuadWeights[4];
  vtkNew<vtkIdList> QuadIds;
 
  // Internal methods for sampling edges, triangles, and polygons
  void SampleEdge(
    vtkPoints* pts, vtkIdType p0, vtkIdType p1, vtkPointData* inPD, vtkPointData* outPD);
  void SampleTriangle(vtkPoints* newPts, vtkPoints* inPts, const vtkIdType* pts, vtkPointData* inPD,
    vtkPointData* outPD);
  void SamplePolygon(vtkPoints* newPts, vtkPoints* inPts, vtkIdType npts, const vtkIdType* pts,
    vtkPointData* inPD, vtkPointData* outPD);
 
private:
  vtkPolyDataPointSampler(const vtkPolyDataPointSampler&) = delete;
  void operator=(const vtkPolyDataPointSampler&) = delete;
};
 
#endif