VTK  9.2.6
vtkParametricRandomHills.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkParametricRandomHills.h
5
6 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7 All rights reserved.
8 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9
10 This software is distributed WITHOUT ANY WARRANTY; without even
11 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12 PURPOSE. See the above copyright notice for more information.
13
14=========================================================================*/
35#ifndef vtkParametricRandomHills_h
36#define vtkParametricRandomHills_h
37
38#include "vtkCommonComputationalGeometryModule.h" // For export macro
40
41class vtkDoubleArray;
43
44class VTKCOMMONCOMPUTATIONALGEOMETRY_EXPORT vtkParametricRandomHills : public vtkParametricFunction
45{
46
47public:
49 void PrintSelf(ostream& os, vtkIndent indent) override;
50
54 int GetDimension() override { return 2; }
55
73
75
79 vtkSetMacro(NumberOfHills, int);
80 vtkGetMacro(NumberOfHills, int);
82
84
88 vtkSetMacro(HillXVariance, double);
89 vtkGetMacro(HillXVariance, double);
91
93
97 vtkSetMacro(HillYVariance, double);
98 vtkGetMacro(HillYVariance, double);
100
102
106 vtkSetMacro(HillAmplitude, double);
107 vtkGetMacro(HillAmplitude, double);
109
111
117 vtkSetMacro(RandomSeed, int);
118 vtkGetMacro(RandomSeed, int);
120
122
135 vtkSetClampMacro(AllowRandomGeneration, vtkTypeBool, 0, 1);
136 vtkGetMacro(AllowRandomGeneration, vtkTypeBool);
137 vtkBooleanMacro(AllowRandomGeneration, vtkTypeBool);
139
141
145 vtkSetMacro(XVarianceScaleFactor, double);
146 vtkGetMacro(XVarianceScaleFactor, double);
148
150
154 vtkSetMacro(YVarianceScaleFactor, double);
155 vtkGetMacro(YVarianceScaleFactor, double);
157
159
163 vtkSetMacro(AmplitudeScaleFactor, double);
164 vtkGetMacro(AmplitudeScaleFactor, double);
166
175 void Evaluate(double uvw[3], double Pt[3], double Duvw[9]) override;
176
190 double EvaluateScalar(double uvw[3], double Pt[3], double Duvw[9]) override;
191
192protected:
195
196 // Variables
206
207 // These variables store the previous values of the above ones.
217
218private:
220 void operator=(const vtkParametricRandomHills&) = delete;
221
225 void InitRNG(int RandomSeed);
226
230 double Rand(void);
231
235 vtkMinimalStandardRandomSequence* randomSequenceGenerator;
236
243 void MakeTheHillData(void);
244
248 bool ParametersChanged();
249
253 void CopyParameters();
254
256
259 vtkDoubleArray* hillData;
261};
262
263#endif
dynamic, self-adjusting array of double
a simple class to control print indentation
Definition vtkIndent.h:34
Park and Miller Sequence of pseudo random numbers.
abstract interface for parametric functions
Generate a surface covered with randomly placed hills.
int GetDimension() override
Return the parametric dimension of the class.
double EvaluateScalar(double uvw[3], double Pt[3], double Duvw[9]) override
Calculate a user defined scalar using one or all of uvw, Pt, Duvw.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
static vtkParametricRandomHills * New()
Construct a surface of random hills with the following parameters: MinimumU = -10,...
~vtkParametricRandomHills() override
void Evaluate(double uvw[3], double Pt[3], double Duvw[9]) override
Construct a terrain consisting of hills on a surface.
int vtkTypeBool
Definition vtkABI.h:69