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00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: vtkParametricRandomHills.h 00005 00006 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen 00007 All rights reserved. 00008 See Copyright.txt or http://www.kitware.com/Copyright.htm for details. 00009 00010 This software is distributed WITHOUT ANY WARRANTY; without even 00011 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00012 PURPOSE. See the above copyright notice for more information. 00013 00014 =========================================================================*/ 00037 #ifndef vtkParametricRandomHills_h 00038 #define vtkParametricRandomHills_h 00039 00040 #include "vtkCommonComputationalGeometryModule.h" // For export macro 00041 #include "vtkParametricFunction.h" 00042 00043 class vtkDoubleArray; 00044 class vtkMinimalStandardRandomSequence; 00045 00046 class VTKCOMMONCOMPUTATIONALGEOMETRY_EXPORT vtkParametricRandomHills : public vtkParametricFunction 00047 { 00048 00049 public: 00050 vtkTypeMacro(vtkParametricRandomHills,vtkParametricFunction); 00051 void PrintSelf(ostream& os, vtkIndent indent); 00052 00054 virtual int GetDimension() {return 2;} 00055 00064 static vtkParametricRandomHills *New(); 00065 00067 00068 vtkSetMacro(NumberOfHills,int); 00069 vtkGetMacro(NumberOfHills,int); 00071 00073 00074 vtkSetMacro(HillXVariance,double); 00075 vtkGetMacro(HillXVariance,double); 00077 00079 00080 vtkSetMacro(HillYVariance,double); 00081 vtkGetMacro(HillYVariance,double); 00083 00085 00086 vtkSetMacro(HillAmplitude,double); 00087 vtkGetMacro(HillAmplitude,double); 00089 00091 00094 vtkSetMacro(RandomSeed,int); 00095 vtkGetMacro(RandomSeed,int); 00097 00099 00107 vtkSetClampMacro(AllowRandomGeneration,int,0,1); 00108 vtkGetMacro(AllowRandomGeneration,int); 00109 vtkBooleanMacro(AllowRandomGeneration,int); 00111 00113 00115 vtkSetMacro(XVarianceScaleFactor,double); 00116 vtkGetMacro(XVarianceScaleFactor,double); 00118 00120 00122 vtkSetMacro(YVarianceScaleFactor,double); 00123 vtkGetMacro(YVarianceScaleFactor,double); 00125 00127 00128 vtkSetMacro(AmplitudeScaleFactor,double); 00129 vtkGetMacro(AmplitudeScaleFactor,double); 00131 00137 VTK_LEGACY(void GenerateTheHills(void)); 00138 00144 virtual void Evaluate(double uvw[3], double Pt[3], double Duvw[9]); 00145 00154 virtual double EvaluateScalar(double uvw[3], double Pt[3], double Duvw[9]); 00155 00156 protected: 00157 vtkParametricRandomHills(); 00158 ~vtkParametricRandomHills(); 00159 00160 // Variables 00161 int NumberOfHills; 00162 double HillXVariance; 00163 double HillYVariance; 00164 double HillAmplitude; 00165 int RandomSeed; 00166 double XVarianceScaleFactor; 00167 double YVarianceScaleFactor; 00168 double AmplitudeScaleFactor; 00169 int AllowRandomGeneration; 00170 00171 // These variables store the previous values of the above ones. 00172 int previousNumberOfHills; 00173 double previousHillXVariance; 00174 double previousHillYVariance; 00175 double previousHillAmplitude; 00176 int previousRandomSeed; 00177 double previousXVarianceScaleFactor; 00178 double previousYVarianceScaleFactor; 00179 double previousAmplitudeScaleFactor; 00180 int previousAllowRandomGeneration; 00181 00182 private: 00183 vtkParametricRandomHills(const vtkParametricRandomHills&); // Not implemented. 00184 void operator=(const vtkParametricRandomHills&); // Not implemented. 00185 00187 void InitRNG ( int RandomSeed ); 00188 00190 double Rand ( void ); 00191 00193 vtkMinimalStandardRandomSequence *randomSequenceGenerator; 00194 00199 void MakeTheHillData( void ); 00200 00202 bool ParametersChanged(); 00203 00205 void CopyParameters(); 00206 00208 00209 vtkDoubleArray *hillData; 00210 }; 00212 00213 #endif
1.8.0