vtkAMRSliceFilter.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkAMRSliceFilter_h
#define vtkAMRSliceFilter_h
 
#include "vtkFiltersAMRModule.h" // For export macro
#include "vtkOverlappingAMRAlgorithm.h"
 
#include <vector> // For STL vector
 
VTK_ABI_NAMESPACE_BEGIN
class vtkInformation;
class vtkInformationVector;
class vtkOverlappingAMR;
class vtkMultiProcessController;
class vtkPlane;
class vtkAMRBox;
class vtkImageData;
 
class VTKFILTERSAMR_EXPORT vtkAMRSliceFilter : public vtkOverlappingAMRAlgorithm
{
public:
  static vtkAMRSliceFilter* New();
  vtkTypeMacro(vtkAMRSliceFilter, vtkOverlappingAMRAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  // Inline Getters & Setters


  vtkSetMacro(OffsetFromOrigin, double);
  vtkGetMacro(OffsetFromOrigin, double);


  vtkSetMacro(MaxResolution, unsigned int);
  vtkGetMacro(MaxResolution, unsigned int);

  enum NormalTag : char
  {
    X_NORMAL = 1,
    Y_NORMAL = 2,
    Z_NORMAL = 4
  };


  vtkSetMacro(Normal, int);
  vtkGetMacro(Normal, int);


  virtual void SetController(vtkMultiProcessController*);
  vtkGetObjectMacro(Controller, vtkMultiProcessController);
 
  // Standard Pipeline methods
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int FillInputPortInformation(int port, vtkInformation* info) override;
  int FillOutputPortInformation(int port, vtkInformation* info) override;

  int RequestInformation(vtkInformation* rqst, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

  int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
protected:
  vtkAMRSliceFilter();
  ~vtkAMRSliceFilter() override;

  int GetDonorCellIdx(double x[3], vtkImageData* imageData);

  int GetDonorPointIdx(double x[3], vtkImageData* imageData);

  void ComputeCellCenter(vtkImageData* imageData, int cellIdx, double centroid[3]);

  vtkImageData* GetSlice(double origin[3], int* dims, double* gorigin, double* spacing);

  void GetSliceCellData(vtkImageData* slice, vtkImageData* grid3D);

  void GetSlicePointData(vtkImageData* slice, vtkImageData* grid3D);

  bool PlaneIntersectsAMRBox(double plane[4], double bounds[6]);

  void ComputeAMRBlocksToLoad(vtkPlane* p, vtkOverlappingAMR* metadata);

  void GetAMRSliceInPlane(vtkPlane* p, vtkOverlappingAMR* inp, vtkOverlappingAMR* out);

  bool IsAMRData2D(vtkOverlappingAMR* input);

  vtkPlane* GetCutPlane(vtkOverlappingAMR* input);
 
  double OffsetFromOrigin;
  int Normal;
  unsigned int MaxResolution;
  vtkMultiProcessController* Controller;
 
  std::vector<int> BlocksToLoad;
 
private:
  vtkAMRSliceFilter(const vtkAMRSliceFilter&) = delete;
  void operator=(const vtkAMRSliceFilter&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif /* vtkAMRSliceFilter_h */