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104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkExtractVectorComponents.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkExtractVectorComponents
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* @brief extract components of vector as separate scalars
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*
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* vtkExtractVectorComponents is a filter that extracts vector components as
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* separate scalars. This is accomplished by creating three different outputs.
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* Each output is the same as the input, except that the scalar values will be
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* one of the three components of the vector. These can be found in the
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* VxComponent, VyComponent, and VzComponent.
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* Alternatively, if the ExtractToFieldData flag is set, the filter will
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* put all the components in the field data. The first component will be
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* the scalar and the others will be non-attribute arrays.
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*
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* @warning
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* This filter is unusual in that it creates multiple outputs.
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* If you use the GetOutput() method, you will be retrieving the x vector
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* component.
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*/
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#ifndef vtkExtractVectorComponents_h
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#define vtkExtractVectorComponents_h
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#include "vtkDataSetAlgorithm.h"
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#include "vtkFiltersExtractionModule.h" // For export macro
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class vtkDataSet;
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class VTKFILTERSEXTRACTION_EXPORT vtkExtractVectorComponents : public vtkDataSetAlgorithm
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{
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public:
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static vtkExtractVectorComponents* New();
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vtkTypeMacro(vtkExtractVectorComponents, vtkDataSetAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Specify the input data or filter.
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*/
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virtual void SetInputData(vtkDataSet* input);
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/**
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* Get the output dataset representing velocity x-component. If output is
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* nullptr then input hasn't been set, which is necessary for abstract
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* objects. (Note: this method returns the same information as the
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* GetOutput() method with an index of 0.)
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*/
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vtkDataSet* GetVxComponent();
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/**
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* Get the output dataset representing velocity y-component. If output is
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* nullptr then input hasn't been set, which is necessary for abstract
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* objects. (Note: this method returns the same information as the
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* GetOutput() method with an index of 1.)
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* Note that if ExtractToFieldData is true, this output will be empty.
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*/
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vtkDataSet* GetVyComponent();
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/**
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* Get the output dataset representing velocity z-component. If output is
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* nullptr then input hasn't been set, which is necessary for abstract
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* objects. (Note: this method returns the same information as the
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* GetOutput() method with an index of 2.)
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* Note that if ExtractToFieldData is true, this output will be empty.
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*/
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vtkDataSet* GetVzComponent();
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//@{
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/**
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* Determines whether the vector components will be put
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* in separate outputs or in the first output's field data
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*/
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vtkSetMacro(ExtractToFieldData, vtkTypeBool);
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vtkGetMacro(ExtractToFieldData, vtkTypeBool);
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vtkBooleanMacro(ExtractToFieldData, vtkTypeBool);
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//@}
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protected:
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vtkExtractVectorComponents();
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~vtkExtractVectorComponents() override;
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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vtkTypeBool ExtractToFieldData;
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int OutputsInitialized;
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private:
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vtkExtractVectorComponents(const vtkExtractVectorComponents&) = delete;
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void operator=(const vtkExtractVectorComponents&) = delete;
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};
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#endif
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