TestVectorFieldSource.h

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#include "vtkImageAlgorithm.h"
#include <vtkInformationVector.h>

class TestVectorFieldSource : public vtkImageAlgorithm
{
public:
  static TestVectorFieldSource * New();
  vtkTypeMacro(TestVectorFieldSource,vtkImageAlgorithm);
  void SetBoundingBox(double x0, double x1, double y0,
                      double y1, double z0, double z1);
  void SetExtent(int xMin, int xMax, int yMin, int yMax,
                    int zMin, int zMax);

protected:
  TestVectorFieldSource();
  ~TestVectorFieldSource();
  virtual int RequestInformation(vtkInformation *request,
                                 vtkInformationVector **inputInfoVectors,
                                 vtkInformationVector *outputInfoVector) override;
  void GetSpacing(double dx[3]);
  void GetSize(double dx[3]);
  virtual void ExecuteDataWithInformation(vtkDataObject *outData,vtkInformation *outInfo) override;
private:
  int Extent[6];
  double BoundingBox[6];
  int Spacing;
};