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Common/vtkQuadraticQuad.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkQuadraticQuad.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 =========================================================================*/
00035 #ifndef __vtkQuadraticQuad_h
00036 #define __vtkQuadraticQuad_h
00037 
00038 #include "vtkNonLinearCell.h"
00039 
00040 class vtkPolyData;
00041 class vtkQuadraticEdge;
00042 class vtkQuad;
00043 class vtkPointData;
00044 class vtkCellData;
00045 class vtkDataArray;
00046 class vtkDoubleArray;
00047 
00048 class VTK_COMMON_EXPORT vtkQuadraticQuad : public vtkNonLinearCell
00049 {
00050 public:
00051   static vtkQuadraticQuad *New();
00052   vtkTypeRevisionMacro(vtkQuadraticQuad,vtkNonLinearCell);
00053 
00055 
00057   int GetCellType() {return VTK_QUADRATIC_QUAD;};
00058   int GetCellDimension() {return 2;}
00059   int GetNumberOfEdges() {return 4;}
00060   int GetNumberOfFaces() {return 0;}
00061   vtkCell *GetEdge(int);
00062   vtkCell *GetFace(int) {return 0;}
00064 
00065   int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
00066   void Contour(double value, vtkDataArray *cellScalars, 
00067                vtkPointLocator *locator, vtkCellArray *verts, 
00068                vtkCellArray *lines, vtkCellArray *polys, 
00069                vtkPointData *inPd, vtkPointData *outPd,
00070                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00071   int EvaluatePosition(double x[3], double* closestPoint,
00072                        int& subId, double pcoords[3], 
00073                        double& dist2, double *weights);
00074   void EvaluateLocation(int& subId, double pcoords[3], double x[3],
00075                         double *weights);
00076   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00077   void Derivatives(int subId, double pcoords[3], double *values, 
00078                    int dim, double *derivs);
00079   virtual double *GetParametricCoords();
00080 
00082 
00084   void Clip(double value, vtkDataArray *cellScalars, 
00085             vtkPointLocator *locator, vtkCellArray *polys,
00086             vtkPointData *inPd, vtkPointData *outPd,
00087             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00088             int insideOut);
00090 
00092 
00094   int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
00095                         double x[3], double pcoords[3], int& subId);
00097 
00098   
00100 
00101   static void InterpolationFunctions(double pcoords[3], double weights[8]);
00102   static void InterpolationDerivs(double pcoords[3], double derivs[16]);
00104 
00105 protected:
00106   vtkQuadraticQuad();
00107   ~vtkQuadraticQuad();
00108 
00109   vtkQuadraticEdge *Edge;
00110   vtkQuad          *Quad;
00111   vtkPointData     *PointData;
00112   vtkCellData      *CellData;
00113   vtkDoubleArray    *Scalars;
00114 
00115   void Subdivide(double *weights);
00116   void InterpolateAttributes(vtkPointData *inPd, vtkCellData *inCd,
00117                              vtkIdType cellId, double *weights);
00118 
00119 private:
00120   vtkQuadraticQuad(const vtkQuadraticQuad&);  // Not implemented.
00121   void operator=(const vtkQuadraticQuad&);  // Not implemented.
00122 };
00123 
00124 #endif
00125 
00126