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/*=========================================================================
Program: Visualization Toolkit
Module: vtkHedgeHog.h
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 vtkHedgeHog - create oriented lines from vector data
// .SECTION Description
// vtkHedgeHog creates oriented lines from the input data set. Line
// length is controlled by vector (or normal) magnitude times scale
// factor. If VectorMode is UseNormal, normals determine the orientation
// of the lines. Lines are colored by scalar data, if available.
#ifndef __vtkHedgeHog_h
#define __vtkHedgeHog_h
#include "vtkPolyDataAlgorithm.h"
#define VTK_USE_VECTOR 0
#define VTK_USE_NORMAL 1
class VTK_GRAPHICS_EXPORT vtkHedgeHog : public vtkPolyDataAlgorithm
{
public:
static vtkHedgeHog *New();
vtkTypeMacro(vtkHedgeHog,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set scale factor to control size of oriented lines.
vtkSetMacro(ScaleFactor,double);
vtkGetMacro(ScaleFactor,double);
// Description:
// Specify whether to use vector or normal to perform vector operations.
vtkSetMacro(VectorMode,int);
vtkGetMacro(VectorMode,int);
void SetVectorModeToUseVector() {this->SetVectorMode(VTK_USE_VECTOR);};
void SetVectorModeToUseNormal() {this->SetVectorMode(VTK_USE_NORMAL);};
const char *GetVectorModeAsString();
protected:
vtkHedgeHog();
~vtkHedgeHog() {};
virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
virtual int FillInputPortInformation(int port, vtkInformation *info);
double ScaleFactor;
int VectorMode; // Orient/scale via normal or via vector data
private:
vtkHedgeHog(const vtkHedgeHog&); // Not implemented.
void operator=(const vtkHedgeHog&); // Not implemented.
};
// Description:
// Return the vector mode as a character string.
inline const char *vtkHedgeHog::GetVectorModeAsString(void)
{
if ( this->VectorMode == VTK_USE_VECTOR)
{
return "UseVector";
}
else if ( this->VectorMode == VTK_USE_NORMAL)
{
return "UseNormal";
}
else
{
return "Unknown";
}
}
#endif
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