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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 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 =========================================================================*/ 00028 #ifndef __vtkTensor_h 00029 #define __vtkTensor_h 00030 00031 #include "vtkObject.h" 00032 00033 class VTK_COMMON_EXPORT vtkTensor : public vtkObject 00034 { 00035 public: 00036 static vtkTensor *New(); 00037 vtkTypeRevisionMacro(vtkTensor,vtkObject); 00038 00040 void Initialize(); 00041 00043 double GetComponent(int i, int j) {return this->T[i+3*j];}; 00044 00046 00047 void SetComponent(int i, int j, double 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;}; 00049 00051 00052 void AddComponent(int i, int j, double 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;}; 00054 00056 00058 double *GetColumn(int j) { if (j > 2) {vtkErrorMacro("trying to get tensor column j > 2: j = " << j); return NULL;}; return this->T + 3*j;}; 00060 00062 void DeepCopy(vtkTensor *t); 00063 00065 operator double*() {return this->T;}; 00066 00068 double *T; 00069 00070 protected: 00071 vtkTensor(); 00072 ~vtkTensor() {}; 00073 00074 double Storage[9]; 00075 private: 00076 vtkTensor(const vtkTensor&); // Not implemented. 00077 void operator=(const vtkTensor&); // Not implemented. 00078 }; 00079 00080 inline void vtkTensor::Initialize() 00081 { 00082 for (int j=0; j<3; j++) 00083 { 00084 for (int i=0; i<3; i++) 00085 { 00086 this->T[i+j*3] = 0.0; 00087 } 00088 } 00089 } 00090 00091 inline void vtkTensor::DeepCopy(vtkTensor *t) 00092 { 00093 for (int j=0; j < 3; j++) 00094 { 00095 for (int i=0; i < 3; i++) 00096 { 00097 this->T[i+3*j] = t->T[i+3*j]; 00098 } 00099 } 00100 } 00101 00102 #endif