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# Common/vtkQuadraticEdge.h

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    00001 /*=========================================================================
    00002
    00003   Program:   Visualization Toolkit
    00004   Module:    $RCSfile: vtkQuadraticEdge.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 __vtkQuadraticEdge_h
    00049 #define __vtkQuadraticEdge_h
    00050
    00051 #include "vtkNonLinearCell.h"
    00052
    00053 class vtkPolyData;
    00054 class vtkLine;
    00055
    00056 class VTK_COMMON_EXPORT vtkQuadraticEdge : public vtkNonLinearCell
    00057 {
    00058 public:
    00059   static vtkQuadraticEdge *New();
    00060   vtkTypeRevisionMacro(vtkQuadraticEdge,vtkNonLinearCell);
    00061
    00063
    00065   int GetCellType() {return VTK_QUADRATIC_EDGE;};
    00066   int GetCellDimension() {return 1;}
    00067   int GetNumberOfEdges() {return 0;}
    00068   int GetNumberOfFaces() {return 0;}
    00069   vtkCell *GetEdge(int) {return 0;}
    00070   vtkCell *GetFace(int) {return 0;}
    00072
    00073   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
    00074   void Contour(float value, vtkDataArray *cellScalars,
    00075                vtkPointLocator *locator, vtkCellArray *verts,
    00076                vtkCellArray *lines, vtkCellArray *polys,
    00077                vtkPointData *inPd, vtkPointData *outPd,
    00078                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
    00079   int EvaluatePosition(float x[3], float* closestPoint,
    00080                        int& subId, float pcoords[3],
    00081                        float& dist2, float *weights);
    00082   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
    00083                         float *weights);
    00084   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
    00085   void Derivatives(int subId, float pcoords[3], float *values,
    00086                    int dim, float *derivs);
    00087
    00089
    00091   void Clip(float value, vtkDataArray *cellScalars,
    00092             vtkPointLocator *locator, vtkCellArray *lines,
    00093             vtkPointData *inPd, vtkPointData *outPd,
    00094             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
    00095             int insideOut);
    00097
    00099
    00101   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
    00102                         float x[3], float pcoords[3], int& subId);
    00104
    00105
    00107
    00108   static void InterpolationFunctions(float pcoords[3], float weights[3]);
    00109   static void InterpolationDerivs(float pcoords[3], float derivs[3]);
    00111
    00112 protected:
    00113   vtkQuadraticEdge();
    00114   ~vtkQuadraticEdge();
    00115
    00116   vtkLine *Line;
    00117
    00118 private:
    00119   vtkQuadraticEdge(const vtkQuadraticEdge&);  // Not implemented.
    00120   void operator=(const vtkQuadraticEdge&);  // Not implemented.
    00121 };
    00122
    00123 #endif
    00124
    00125