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 =========================================================================*/
137 #ifndef vtkParametricRandomHills_h
138 #define vtkParametricRandomHills_h
139 
140 #include "vtkCommonComputationalGeometryModule.h" // For export macro
141 #include "vtkParametricFunction.h"
142 
143 class vtkDoubleArray;
145 
146 class VTKCOMMONCOMPUTATIONALGEOMETRY_EXPORT vtkParametricRandomHills : public vtkParametricFunction
147 {
148 
149 public:
151  void PrintSelf(ostream& os, vtkIndent indent) override;
152 
156  int GetDimension() override { return 2; }
157 
175 
177 
181  vtkSetMacro(NumberOfHills, int);
182  vtkGetMacro(NumberOfHills, int);
184 
186 
190  vtkSetMacro(HillXVariance, double);
191  vtkGetMacro(HillXVariance, double);
193 
195 
199  vtkSetMacro(HillYVariance, double);
200  vtkGetMacro(HillYVariance, double);
202 
204 
208  vtkSetMacro(HillAmplitude, double);
209  vtkGetMacro(HillAmplitude, double);
211 
213 
219  vtkSetMacro(RandomSeed, int);
220  vtkGetMacro(RandomSeed, int);
222 
224 
237  vtkSetClampMacro(AllowRandomGeneration, vtkTypeBool, 0, 1);
238  vtkGetMacro(AllowRandomGeneration, vtkTypeBool);
239  vtkBooleanMacro(AllowRandomGeneration, vtkTypeBool);
241 
243 
247  vtkSetMacro(XVarianceScaleFactor, double);
248  vtkGetMacro(XVarianceScaleFactor, double);
250 
252 
256  vtkSetMacro(YVarianceScaleFactor, double);
257  vtkGetMacro(YVarianceScaleFactor, double);
259 
261 
265  vtkSetMacro(AmplitudeScaleFactor, double);
266  vtkGetMacro(AmplitudeScaleFactor, double);
268 
277  void Evaluate(double uvw[3], double Pt[3], double Duvw[9]) override;
278 
292  double EvaluateScalar(double uvw[3], double Pt[3], double Duvw[9]) override;
293 
294 protected:
297 
298  // Variables
308 
309  // These variables store the previous values of the above ones.
319 
320 private:
322  void operator=(const vtkParametricRandomHills&) = delete;
323 
327  void InitRNG(int RandomSeed);
328 
332  double Rand(void);
333 
337  vtkMinimalStandardRandomSequence* randomSequenceGenerator;
338 
345  void MakeTheHillData(void);
346 
350  bool ParametersChanged();
351 
355  void CopyParameters();
356 
358 
361  vtkDoubleArray* hillData;
363 };
364 
365 #endif
dynamic, self-adjusting array of double
a simple class to control print indentation
Definition: vtkIndent.h:119
Park and Miller Sequence of pseudo random numbers.
abstract interface for parametric functions
Generate a surface covered with randomly placed hills.
static vtkParametricRandomHills * New()
Construct a surface of random hills with the following parameters: MinimumU = -10,...
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.
~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