vtkTransformFilter.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkTransformFilter_h
#define vtkTransformFilter_h

#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkPointSetAlgorithm.h"

VTK_ABI_NAMESPACE_BEGIN
class vtkAbstractTransform;
class vtkDataSet;
class vtkDataObjectMeshCache;

class VTKFILTERSGENERAL_EXPORT vtkTransformFilter : public vtkPointSetAlgorithm
{
public:

  static vtkTransformFilter* New();
  vtkTypeMacro(vtkTransformFilter, vtkPointSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  vtkMTimeType GetMTime() override;


  virtual void SetTransform(vtkAbstractTransform*);
  vtkGetObjectMacro(Transform, vtkAbstractTransform);


  vtkSetMacro(OutputPointsPrecision, int);
  vtkGetMacro(OutputPointsPrecision, int);


  vtkSetMacro(TransformAllInputVectors, bool);
  vtkGetMacro(TransformAllInputVectors, bool);
  vtkBooleanMacro(TransformAllInputVectors, bool);

protected:
  vtkTransformFilter();
  ~vtkTransformFilter() override;

  int RequestDataObject(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

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

  int FillInputPortInformation(int port, vtkInformation* info) override;

  int FillOutputPortInformation(int port, vtkInformation* info) override;

  vtkDataArray* CreateNewDataArray(vtkDataArray* input = nullptr);

  vtkAbstractTransform* Transform;
  int OutputPointsPrecision;
  bool TransformAllInputVectors;

private:
  vtkTransformFilter(const vtkTransformFilter&) = delete;
  void operator=(const vtkTransformFilter&) = delete;

  vtkDataSet* CreateNewDataSetIfNeeded(vtkDataSet* input, vtkDataSet* output);


  bool ExecuteDataSet(vtkDataSet* input, vtkPointSet* output, bool useCachedGeometry);
  vtkSmartPointer<vtkPointSet> ConvertInput(vtkDataSet* input);
  void InitializeOutputPointSet(vtkPointSet* input, vtkPointSet* output);
  void TransformPointData(vtkPointSet* input, vtkPointSet* output, bool preservePoints);
  void TransformCellData(vtkPointSet* input, vtkPointSet* output);
  vtkDataArray* CreateFromArray(vtkDataArray* input);

  vtkNew<vtkDataObjectMeshCache> MeshCache;
};

VTK_ABI_NAMESPACE_END
#endif