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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkVectorNorm.h,v $
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkVectorNorm - generate scalars from Euclidean norm of vectors
// .SECTION Description
// vtkVectorNorm is a filter that generates scalar values by computing
// Euclidean norm of vector triplets. Scalars can be normalized
// 0<=s<=1 if desired.
//
// Note that this filter operates on point or cell attribute data, or
// both. By default, the filter operates on both point and cell data
// if vector point and cell data, respectively, are available from the
// input. Alternatively, you can choose to generate scalar norm values
// for just cell or point data.
#ifndef __vtkVectorNorm_h
#define __vtkVectorNorm_h
#define VTK_ATTRIBUTE_MODE_DEFAULT 0
#define VTK_ATTRIBUTE_MODE_USE_POINT_DATA 1
#define VTK_ATTRIBUTE_MODE_USE_CELL_DATA 2
#include "vtkDataSetAlgorithm.h"
class VTK_GRAPHICS_EXPORT vtkVectorNorm : public vtkDataSetAlgorithm
{
public:
vtkTypeRevisionMacro(vtkVectorNorm,vtkDataSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Construct with normalize flag off.
static vtkVectorNorm *New();
// Description:
// Specify whether to normalize scalar values.
vtkSetMacro(Normalize,int);
vtkGetMacro(Normalize,int);
vtkBooleanMacro(Normalize,int);
// Description:
// Control how the filter works to generate scalar data from the
// input vector data. By default, (AttributeModeToDefault) the
// filter will generate the scalar norm for point and cell data (if
// vector data present in the input). Alternatively, you can
// explicitly set the filter to generate point data
// (AttributeModeToUsePointData) or cell data
// (AttributeModeToUseCellData).
vtkSetMacro(AttributeMode,int);
vtkGetMacro(AttributeMode,int);
void SetAttributeModeToDefault()
{this->SetAttributeMode(VTK_ATTRIBUTE_MODE_DEFAULT);};
void SetAttributeModeToUsePointData()
{this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_POINT_DATA);};
void SetAttributeModeToUseCellData()
{this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_CELL_DATA);};
const char *GetAttributeModeAsString();
protected:
vtkVectorNorm();
~vtkVectorNorm() {};
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
int Normalize; // normalize 0<=n<=1 if true.
int AttributeMode; //control whether to use point or cell data, or both
private:
vtkVectorNorm(const vtkVectorNorm&); // Not implemented.
void operator=(const vtkVectorNorm&); // Not implemented.
};
#endif
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