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dox/Common/vtkTensor.h

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00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkTensor.h,v $ 00005 Language: C++ 00006 00007 Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 00008 All rights reserved. 00009 See Copyright.txt or http://www.kitware.com/Copyright.htm for details. 00010 00011 This software is distributed WITHOUT ANY WARRANTY; without even 00012 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00013 PURPOSE. See the above copyright notice for more information. 00014 00015 =========================================================================*/ 00032 #ifndef __vtkTensor_h 00033 #define __vtkTensor_h 00034 00035 #include "vtkObject.h" 00036 00037 class VTK_COMMON_EXPORT vtkTensor : public vtkObject 00038 { 00039 public: 00040 static vtkTensor *New(); 00041 vtkTypeRevisionMacro(vtkTensor,vtkObject); 00042 00044 void Initialize(); 00045 00047 float GetComponent(int i, int j) {return this->T[i+3*j];}; 00048 00050 00051 void SetComponent(int i, int j, float v) {if (i > 2 || j > 2) {vtkErrorMacro("trying to set tensor component i or j > 2: i = " << i << ", j = " << j); return;}; this->T[i+3*j] = v;}; 00053 00055 00056 void AddComponent(int i, int j, float v) { if (i > 2 || j > 2) {vtkErrorMacro("trying to add tensor component i or j > 2: i = " << i << ", j = " << j); return;}; this->T[i+3*j] += v;}; 00058 00060 00062 float *GetColumn(int j) { if (j > 2) {vtkErrorMacro("trying to get tensor column j > 2: j = " << j); return NULL;}; return this->T + 3*j;}; 00064 00066 void DeepCopy(vtkTensor *t); 00067 00069 operator float*() {return this->T;}; 00070 00072 float *T; 00073 00074 protected: 00075 vtkTensor(); 00076 ~vtkTensor() {}; 00077 00078 float Storage[9]; 00079 private: 00080 vtkTensor(const vtkTensor&); // Not implemented. 00081 void operator=(const vtkTensor&); // Not implemented. 00082 }; 00083 00084 inline void vtkTensor::Initialize() 00085 { 00086 for (int j=0; j<3; j++) 00087 { 00088 for (int i=0; i<3; i++) 00089 { 00090 this->T[i+j*3] = 0.0; 00091 } 00092 } 00093 } 00094 00095 inline void vtkTensor::DeepCopy(vtkTensor *t) 00096 { 00097 for (int j=0; j < 3; j++) 00098 { 00099 for (int i=0; i < 3; i++) 00100 { 00101 this->T[i+3*j] = t->T[i+3*j]; 00102 } 00103 } 00104 } 00105 00106 #endif