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Common/vtkQuad.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkQuad.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 =========================================================================*/
00048 #ifndef __vtkQuad_h
00049 #define __vtkQuad_h
00050 
00051 #include "vtkCell.h"
00052 
00053 class vtkLine;
00054 
00055 class VTK_COMMON_EXPORT vtkQuad : public vtkCell
00056 {
00057 public:
00058   static vtkQuad *New();
00059   vtkTypeRevisionMacro(vtkQuad,vtkCell);
00060 
00062 
00063   int GetCellType() {return VTK_QUAD;};
00064   int GetCellDimension() {return 2;};
00065   int GetNumberOfEdges() {return 4;};
00066   int GetNumberOfFaces() {return 0;};
00067   vtkCell *GetEdge(int edgeId);
00068   vtkCell *GetFace(int) {return 0;};
00069   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00070   void Contour(float value, vtkDataArray *cellScalars, 
00071                vtkPointLocator *locator, vtkCellArray *verts, 
00072                vtkCellArray *lines, vtkCellArray *polys,
00073                vtkPointData *inPd, vtkPointData *outPd,
00074                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00075   int EvaluatePosition(float x[3], float* closestPoint,
00076                        int& subId, float pcoords[3],
00077                        float& dist2, float *weights);
00078   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00079                         float *weights);
00080   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00081                         float x[3], float pcoords[3], int& subId);
00082   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00083   void Derivatives(int subId, float pcoords[3], float *values, 
00084                    int dim, float *derivs);
00086 
00088 
00090   void Clip(float value, vtkDataArray *cellScalars, 
00091             vtkPointLocator *locator, vtkCellArray *polys,
00092             vtkPointData *inPd, vtkPointData *outPd,
00093             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00094             int insideOut);
00096 
00098 
00099   static void InterpolationFunctions(float pcoords[3], float sf[4]);
00100   static void InterpolationDerivs(float pcoords[3], float derivs[8]);
00102 
00103 
00104 protected:
00105   vtkQuad();
00106   ~vtkQuad();
00107 
00108   vtkLine *Line;
00109 
00110 private:
00111   vtkQuad(const vtkQuad&);  // Not implemented.
00112   void operator=(const vtkQuad&);  // Not implemented.
00113 };
00114 
00115 #endif
00116 
00117