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dox/Common/vtkCell.h

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00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkCell.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 =========================================================================*/ 00043 #ifndef __vtkCell_h 00044 #define __vtkCell_h 00045 00046 #define VTK_CELL_SIZE 512 00047 #define VTK_TOL 1.e-05 // Tolerance for geometric calculation 00048 00049 #include "vtkObject.h" 00050 00051 #include "vtkIdList.h" // Needed for inline methods 00052 #include "vtkCellType.h" // Needed to define cell types 00053 00054 class vtkCellArray; 00055 class vtkCellData; 00056 class vtkDataArray; 00057 class vtkPointData; 00058 class vtkPointLocator; 00059 class vtkPoints; 00060 00061 class VTK_COMMON_EXPORT vtkCell : public vtkObject 00062 { 00063 public: 00064 vtkTypeRevisionMacro(vtkCell,vtkObject); 00065 void PrintSelf(ostream& os, vtkIndent indent); 00066 00069 void Initialize(int npts, vtkIdType *pts, vtkPoints *p); 00070 00071 #ifndef VTK_REMOVE_LEGACY_CODE 00072 00073 virtual vtkCell* MakeObject(); 00074 #endif 00075 00079 virtual void ShallowCopy(vtkCell *c); 00080 00083 virtual void DeepCopy(vtkCell *c); 00084 00086 virtual int GetCellType() = 0; 00087 00089 virtual int GetCellDimension() = 0; 00090 00094 virtual int IsLinear() {return 1;} 00095 00097 00100 virtual int RequiresInitialization() {return 0;} 00101 virtual void Initialize() {} 00103 00107 virtual int IsExplicitCell() {return 0;} 00108 00110 vtkPoints *GetPoints() {return this->Points;} 00111 00113 int GetNumberOfPoints() {return this->PointIds->GetNumberOfIds();} 00114 00116 virtual int GetNumberOfEdges() = 0; 00117 00119 virtual int GetNumberOfFaces() = 0; 00120 00122 vtkIdList *GetPointIds() {return this->PointIds;} 00123 00125 vtkIdType GetPointId(int ptId) {return this->PointIds->GetId(ptId);} 00126 00128 virtual vtkCell *GetEdge(int edgeId) = 0; 00129 00131 virtual vtkCell *GetFace(int faceId) = 0; 00132 00138 virtual int CellBoundary(int subId, float pcoords[3], vtkIdList *pts) = 0; 00139 00141 00155 virtual int EvaluatePosition(float x[3], float* closestPoint, 00156 int& subId, float pcoords[3], 00157 float& dist2, float *weights) = 0; 00159 00161 00164 virtual void EvaluateLocation(int& subId, float pcoords[3], 00165 float x[3], float *weights) = 0; 00167 00169 00180 virtual void Contour(float value, vtkDataArray *cellScalars, 00181 vtkPointLocator *locator, vtkCellArray *verts, 00182 vtkCellArray *lines, vtkCellArray *polys, 00183 vtkPointData *inPd, vtkPointData *outPd, 00184 vtkCellData *inCd, vtkIdType cellId, 00185 vtkCellData *outCd) = 0; 00187 00189 00200 virtual void Clip(float value, vtkDataArray *cellScalars, 00201 vtkPointLocator *locator, vtkCellArray *connectivity, 00202 vtkPointData *inPd, vtkPointData *outPd, 00203 vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, 00204 int insideOut) = 0; 00206 00208 00211 virtual int IntersectWithLine(float p1[3], float p2[3], float tol, float& t, 00212 float x[3], float pcoords[3], int& subId) = 0; 00214 00222 virtual int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) = 0; 00223 00225 00237 virtual void Derivatives(int subId, float pcoords[3], float *values, 00238 int dim, float *derivs) = 0; 00240 00241 00244 void GetBounds(float bounds[6]); 00245 00246 00249 float *GetBounds(); 00250 00251 00253 float GetLength2(); 00254 00255 00261 virtual int GetParametricCenter(float pcoords[3]); 00262 00263 00265 00272 static char HitBBox(float bounds[6], float origin[3], float dir[3], 00273 float coord[3], float& t); 00275 00276 00277 // left public for quick computational access 00278 vtkPoints *Points; 00279 vtkIdList *PointIds; 00280 00281 protected: 00282 vtkCell(); 00283 ~vtkCell(); 00284 00285 float Bounds[6]; 00286 private: 00287 vtkCell(const vtkCell&); // Not implemented. 00288 void operator=(const vtkCell&); // Not implemented. 00289 }; 00290 00291 #endif 00292 00293