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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkTransformFilter
* @brief transform points and associated normals and vectors
*
* vtkTransformFilter is a filter to transform point coordinates, and
* associated point normals and vectors, as well as cell normals and vectors.
* Transformed data array will be stored in a float array or a double array.
* Other point and cell data are passed through the filter, unless
* TransformAllInputVectors is set to true, in this case all other 3
* components arrays from point and cell data will be transformed as well.
*
* An alternative method of transformation is to use vtkActor's methods
* to scale, rotate, and translate objects. The difference between the
* two methods is that vtkActor's transformation simply effects where
* objects are rendered (via the graphics pipeline), whereas
* vtkTransformFilter actually modifies point coordinates in the
* visualization pipeline. This is necessary for some objects
* (e.g., vtkProbeFilter) that require point coordinates as input.
*
* @sa
* vtkAbstractTransform vtkTransformPolyDataFilter vtkActor
*/
#ifndef vtkTransformFilter_h
#define vtkTransformFilter_h
#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkPointSetAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkAbstractTransform;
class VTKFILTERSGENERAL_EXPORT vtkTransformFilter : public vtkPointSetAlgorithm
{
public:
///@{
/**
* Standard methods for instantiation, obtaining type information, and
* printing.
*/
static vtkTransformFilter* New();
vtkTypeMacro(vtkTransformFilter, vtkPointSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@}
/**
* Return the MTime also considering the transform.
*/
vtkMTimeType GetMTime() override;
///@{
/**
* Specify the transform object used to transform points.
*/
virtual void SetTransform(vtkAbstractTransform*);
vtkGetObjectMacro(Transform, vtkAbstractTransform);
///@}
///@{
/**
* Set/get the desired precision for the output types. See the documentation
* for the vtkAlgorithm::DesiredOutputPrecision enum for an explanation of
* the available precision settings.
*/
vtkSetMacro(OutputPointsPrecision, int);
vtkGetMacro(OutputPointsPrecision, int);
///@}
///@{
/**
* If off (the default), only Vectors and Normals will be transformed. If
* on, all 3-component data arrays (treated as 3D vectors) will be
* transformed, while other non-3-component data arrays will be passed
* through to the output unchanged.
*/
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;
// Specifies that the filter only takes input dataset types of vtkPointSet, vtkImageData,
// and vtkRectilinearGrid.
int FillInputPortInformation(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;
};
VTK_ABI_NAMESPACE_END
#endif
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