/usr/include/vtk-7.1/vtkPerlinNoise.h is in libvtk7-dev 7.1.1+dfsg1-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkPerlinNoise.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 vtkPerlinNoise
* @brief an implicit function that implements Perlin noise
*
* vtkPerlinNoise computes a Perlin noise field as an implicit function.
* vtkPerlinNoise is a concrete implementation of vtkImplicitFunction.
* Perlin noise, originally described by Ken Perlin, is a non-periodic and
* continuous noise function useful for modeling real-world objects.
*
* The amplitude and frequency of the noise pattern are adjustable. This
* implementation of Perlin noise is derived closely from Greg Ward's version
* in Graphics Gems II.
*
* @sa
* vtkImplicitFunction
*/
#ifndef vtkPerlinNoise_h
#define vtkPerlinNoise_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkImplicitFunction.h"
class VTKCOMMONDATAMODEL_EXPORT vtkPerlinNoise : public vtkImplicitFunction
{
public:
vtkTypeMacro(vtkPerlinNoise,vtkImplicitFunction);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* Instantiate the class.
*/
static vtkPerlinNoise *New();
//@{
/**
* Evaluate PerlinNoise function.
*/
double EvaluateFunction(double x[3]) VTK_OVERRIDE;
double EvaluateFunction(double x, double y, double z)
{return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;
//@}
/**
* Evaluate PerlinNoise gradient. Currently, the method returns a 0
* gradient.
*/
void EvaluateGradient(double x[3], double n[3]) VTK_OVERRIDE;
//@{
/**
* Set/get the frequency, or physical scale, of the noise function
* (higher is finer scale). The frequency can be adjusted per axis, or
* the same for all axes.
*/
vtkSetVector3Macro(Frequency,double);
vtkGetVectorMacro(Frequency,double,3);
//@}
//@{
/**
* Set/get the phase of the noise function. This parameter can be used to
* shift the noise function within space (perhaps to avoid a beat with a
* noise pattern at another scale). Phase tends to repeat about every
* unit, so a phase of 0.5 is a half-cycle shift.
*/
vtkSetVector3Macro(Phase,double);
vtkGetVectorMacro(Phase,double,3);
//@}
//@{
/**
* Set/get the amplitude of the noise function. Amplitude can be negative.
* The noise function varies randomly between -|Amplitude| and |Amplitude|.
* Therefore the range of values is 2*|Amplitude| large.
* The initial amplitude is 1.
*/
vtkSetMacro(Amplitude,double);
vtkGetMacro(Amplitude,double);
//@}
protected:
vtkPerlinNoise();
~vtkPerlinNoise() VTK_OVERRIDE {}
double Frequency[3];
double Phase[3];
double Amplitude;
private:
vtkPerlinNoise(const vtkPerlinNoise&) VTK_DELETE_FUNCTION;
void operator=(const vtkPerlinNoise&) VTK_DELETE_FUNCTION;
};
#endif
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