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C++

/*=========================================================================
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.
=========================================================================*/
/**
* @class vtkHedgeHog
* @brief create oriented lines from vector data
*
* 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 "vtkFiltersCoreModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
#define VTK_USE_VECTOR 0
#define VTK_USE_NORMAL 1
class VTKFILTERSCORE_EXPORT vtkHedgeHog : public vtkPolyDataAlgorithm
{
public:
static vtkHedgeHog* New();
vtkTypeMacro(vtkHedgeHog, vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
//@{
/**
* Set scale factor to control size of oriented lines.
*/
vtkSetMacro(ScaleFactor, double);
vtkGetMacro(ScaleFactor, double);
//@}
//@{
/**
* 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();
//@}
//@{
/**
* Set/get the desired precision for the output types. See the documentation
* for the vtkAlgorithm::DesiredOutputPrecision enum for an explanation of
* the available precision settings.
*/
vtkSetMacro(OutputPointsPrecision, int);
vtkGetMacro(OutputPointsPrecision, int);
//@}
protected:
vtkHedgeHog();
~vtkHedgeHog() override {}
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int FillInputPortInformation(int port, vtkInformation* info) override;
double ScaleFactor;
int VectorMode; // Orient/scale via normal or via vector data
int OutputPointsPrecision;
private:
vtkHedgeHog(const vtkHedgeHog&) = delete;
void operator=(const vtkHedgeHog&) = delete;
};
//@{
/**
* 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
//@}