00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkImplicitSum.h,v $ 00005 Language: C++ 00006 00007 00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 00009 All rights reserved. 00010 00011 Redistribution and use in source and binary forms, with or without 00012 modification, are permitted provided that the following conditions are met: 00013 00014 * Redistributions of source code must retain the above copyright notice, 00015 this list of conditions and the following disclaimer. 00016 00017 * Redistributions in binary form must reproduce the above copyright notice, 00018 this list of conditions and the following disclaimer in the documentation 00019 and/or other materials provided with the distribution. 00020 00021 * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names 00022 of any contributors may be used to endorse or promote products derived 00023 from this software without specific prior written permission. 00024 00025 * Modified source versions must be plainly marked as such, and must not be 00026 misrepresented as being the original software. 00027 00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' 00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR 00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00038 00039 =========================================================================*/ 00072 #ifndef __vtkImplicitSum_h 00073 #define __vtkImplicitSum_h 00074 00075 #include "vtkImplicitFunction.h" 00076 00077 class vtkFloatArray; 00078 class vtkImplicitFunctionCollection; 00079 00080 class VTK_FILTERING_EXPORT vtkImplicitSum : public vtkImplicitFunction 00081 { 00082 public: 00083 static vtkImplicitSum *New(); 00084 00085 vtkTypeRevisionMacro(vtkImplicitSum,vtkImplicitFunction); 00086 void PrintSelf(ostream& os, vtkIndent indent); 00087 00089 00090 float EvaluateFunction(float x[3]); 00091 float EvaluateFunction(float x, float y, float z) 00092 {return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ; 00094 00097 void EvaluateGradient(float x[3], float g[3]); 00098 00100 unsigned long GetMTime(); 00101 00104 void AddFunction(vtkImplicitFunction *in, float weight); 00105 00108 void AddFunction(vtkImplicitFunction *in) { this->AddFunction(in, 1.0); } 00109 00111 void RemoveAllFunctions(); 00112 00114 void SetFunctionWeight(vtkImplicitFunction *f, float weight); 00115 00117 00122 vtkSetMacro(NormalizeByWeight, int); 00123 vtkGetMacro(NormalizeByWeight, int); 00124 vtkBooleanMacro(NormalizeByWeight, int); 00126 00127 protected: 00128 vtkImplicitSum(); 00129 ~vtkImplicitSum(); 00130 00131 vtkImplicitFunctionCollection *FunctionList; 00132 vtkFloatArray *Weights; 00133 float TotalWeight; 00134 00135 void CalculateTotalWeight(void); 00136 int NormalizeByWeight; 00137 00138 private: 00139 vtkImplicitSum(const vtkImplicitSum&); // Not implemented. 00140 void operator=(const vtkImplicitSum&); // Not implemented. 00141 }; 00142 00143 #endif