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Common/vtkTriangleStrip.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkTriangleStrip.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 =========================================================================*/
00032 #ifndef __vtkTriangleStrip_h
00033 #define __vtkTriangleStrip_h
00034 
00035 #include "vtkCell.h"
00036 
00037 class vtkLine;
00038 class vtkTriangle;
00039 
00040 class VTK_COMMON_EXPORT vtkTriangleStrip : public vtkCell
00041 {
00042 public:
00043   static vtkTriangleStrip *New();
00044   vtkTypeRevisionMacro(vtkTriangleStrip,vtkCell);
00045 
00047 
00048   int GetCellType() {return VTK_TRIANGLE_STRIP;};
00049   int GetCellDimension() {return 2;};
00050   int GetNumberOfEdges() {return this->GetNumberOfPoints();};
00051   int GetNumberOfFaces() {return 0;};
00052   vtkCell *GetEdge(int edgeId);
00053   vtkCell *GetFace(int vtkNotUsed(faceId)) {return 0;};
00054   int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
00055   void Contour(double value, vtkDataArray *cellScalars, 
00056                vtkPointLocator *locator, vtkCellArray *verts, 
00057                vtkCellArray *lines, vtkCellArray *polys, 
00058                vtkPointData *inPd, vtkPointData *outPd,
00059                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00060   void Clip(double value, vtkDataArray *cellScalars, 
00061             vtkPointLocator *locator, vtkCellArray *polys,
00062             vtkPointData *inPd, vtkPointData *outPd,
00063             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00064             int insideOut);
00066 
00067   int EvaluatePosition(double x[3], double* closestPoint,
00068                        int& subId, double pcoords[3],
00069                        double& dist2, double *weights);
00070   void EvaluateLocation(int& subId, double pcoords[3], double x[3],
00071                         double *weights);
00072   int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
00073                         double x[3], double pcoords[3], int& subId);
00074   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00075   void Derivatives(int subId, double pcoords[3], double *values, 
00076                    int dim, double *derivs);
00077   int IsPrimaryCell() {return 0;}
00078 
00080   int GetParametricCenter(double pcoords[3]);
00081 
00085   static void DecomposeStrip(int npts, vtkIdType *pts, vtkCellArray *tris);
00086   
00087 
00088 protected:
00089   vtkTriangleStrip();
00090   ~vtkTriangleStrip();
00091 
00092   vtkLine *Line;
00093   vtkTriangle *Triangle;
00094   
00095 private:
00096   vtkTriangleStrip(const vtkTriangleStrip&);  // Not implemented.
00097   void operator=(const vtkTriangleStrip&);  // Not implemented.
00098 };
00099 
00100 #endif
00101 
00102