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93 lines
3.6 KiB
93 lines
3.6 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkExtractVectorComponents.h,v $
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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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// .NAME vtkExtractVectorComponents - extract components of vector as separate scalars
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// .SECTION Description
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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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// .SECTION Caveats
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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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#ifndef __vtkExtractVectorComponents_h
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#define __vtkExtractVectorComponents_h
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#include "vtkDataSetAlgorithm.h"
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class vtkDataSet;
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class VTK_GRAPHICS_EXPORT vtkExtractVectorComponents : public vtkDataSetAlgorithm
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{
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public:
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static vtkExtractVectorComponents *New();
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vtkTypeRevisionMacro(vtkExtractVectorComponents,vtkDataSetAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Specify the input data or filter.
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virtual void SetInput(vtkDataSet *input);
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// Description:
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// Get the output dataset representing velocity x-component. If output is
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// NULL 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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vtkDataSet *GetVxComponent();
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// Description:
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// Get the output dataset representing velocity y-component. If output is
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// NULL 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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vtkDataSet *GetVyComponent();
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// Description:
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// Get the output dataset representing velocity z-component. If output is
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// NULL 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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vtkDataSet *GetVzComponent();
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// Description:
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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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vtkSetMacro(ExtractToFieldData, int);
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vtkGetMacro(ExtractToFieldData, int);
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vtkBooleanMacro(ExtractToFieldData, int);
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protected:
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vtkExtractVectorComponents();
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~vtkExtractVectorComponents();
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virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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int ExtractToFieldData;
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int OutputsInitialized;
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private:
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vtkExtractVectorComponents(const vtkExtractVectorComponents&); // Not implemented.
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void operator=(const vtkExtractVectorComponents&); // Not implemented.
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};
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#endif
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