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98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkVectorNorm.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 vtkVectorNorm
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* @brief generate scalars from Euclidean norm of vectors
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*
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* vtkVectorNorm is a filter that generates scalar values by computing
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* Euclidean norm of vector triplets. Scalars can be normalized
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* 0<=s<=1 if desired.
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*
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* Note that this filter operates on point or cell attribute data, or
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* both. By default, the filter operates on both point and cell data
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* if vector point and cell data, respectively, are available from the
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* input. Alternatively, you can choose to generate scalar norm values
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* for just cell or point data.
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*
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* @warning
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* This class has been threaded with vtkSMPTools. Using TBB or other
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* non-sequential type (set in the CMake variable
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* VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.
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*/
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#ifndef vtkVectorNorm_h
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#define vtkVectorNorm_h
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#define VTK_ATTRIBUTE_MODE_DEFAULT 0
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#define VTK_ATTRIBUTE_MODE_USE_POINT_DATA 1
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#define VTK_ATTRIBUTE_MODE_USE_CELL_DATA 2
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#include "vtkDataSetAlgorithm.h"
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#include "vtkFiltersCoreModule.h" // For export macro
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class VTKFILTERSCORE_EXPORT vtkVectorNorm : public vtkDataSetAlgorithm
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{
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public:
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vtkTypeMacro(vtkVectorNorm, vtkDataSetAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Construct with normalize flag off.
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*/
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static vtkVectorNorm* New();
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// Specify whether to normalize scalar values. If the data is normalized,
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// then it will fall in the range [0,1].
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vtkSetMacro(Normalize, vtkTypeBool);
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vtkGetMacro(Normalize, vtkTypeBool);
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vtkBooleanMacro(Normalize, vtkTypeBool);
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//@{
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/**
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* Control how the filter works to generate scalar data from the
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* input vector data. By default, (AttributeModeToDefault) the
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* filter will generate the scalar norm for point and cell data (if
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* vector data present in the input). Alternatively, you can
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* explicitly set the filter to generate point data
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* (AttributeModeToUsePointData) or cell data
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* (AttributeModeToUseCellData).
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*/
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vtkSetMacro(AttributeMode, int);
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vtkGetMacro(AttributeMode, int);
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void SetAttributeModeToDefault() { this->SetAttributeMode(VTK_ATTRIBUTE_MODE_DEFAULT); }
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void SetAttributeModeToUsePointData()
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{
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this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_POINT_DATA);
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}
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void SetAttributeModeToUseCellData() { this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_CELL_DATA); }
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const char* GetAttributeModeAsString();
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//@}
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protected:
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vtkVectorNorm();
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~vtkVectorNorm() override {}
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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vtkTypeBool Normalize; // normalize 0<=n<=1 if true.
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int AttributeMode; // control whether to use point or cell data, or both
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private:
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vtkVectorNorm(const vtkVectorNorm&) = delete;
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void operator=(const vtkVectorNorm&) = delete;
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};
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#endif
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