Common/vtkWedge.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkWedge.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00057 #ifndef __vtkWedge_h
00058 #define __vtkWedge_h
00059 
00060 #include "vtkCell3D.h"
00061 #include "vtkLine.h"
00062 #include "vtkTriangle.h"
00063 #include "vtkQuad.h"
00064 
00065 class vtkUnstructuredGrid;
00066 
00067 class VTK_COMMON_EXPORT vtkWedge : public vtkCell3D
00068 {
00069 public:
00070   static vtkWedge *New();
00071   vtkTypeMacro(vtkWedge,vtkCell);
00072 
00074 
00075   virtual void GetEdgePoints(int edgeId, int* &pts);
00076   virtual void GetFacePoints(int faceId, int* &pts);
00078 
00080 
00081   vtkCell *MakeObject();
00082   int GetCellType() {return VTK_WEDGE;}
00083   int GetCellDimension() {return 3;}
00084   int GetNumberOfEdges() {return 9;}
00085   int GetNumberOfFaces() {return 5;}
00086   vtkCell *GetEdge(int edgeId);
00087   vtkCell *GetFace(int faceId);
00088   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00089   void Contour(float value, vtkDataArray *cellScalars, 
00090                vtkPointLocator *locator, vtkCellArray *verts, 
00091                vtkCellArray *lines, vtkCellArray *polys,
00092                vtkPointData *inPd, vtkPointData *outPd,
00093                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00094   int EvaluatePosition(float x[3], float* closestPoint,
00095                        int& subId, float pcoords[3],
00096                        float& dist2, float *weights);
00097   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00098                         float *weights);
00099   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00100                         float x[3], float pcoords[3], int& subId);
00101   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00102   void Derivatives(int subId, float pcoords[3], float *values, 
00103                    int dim, float *derivs);
00105 
00107   int GetParametricCenter(float pcoords[3]);
00108 
00110 
00112   static void InterpolationFunctions(float pcoords[3], float weights[6]);
00113   static void InterpolationDerivs(float pcoords[3], float derivs[18]);
00114   int JacobianInverse(float pcoords[3], double **inverse, float derivs[18]);
00115   static int *GetEdgeArray(int edgeId);
00116   static int *GetFaceArray(int faceId);
00118 
00119 protected:
00120   vtkWedge();
00121   ~vtkWedge();
00122 
00123   vtkLine *Line;
00124   vtkTriangle *Triangle;
00125   vtkQuad *Quad;
00126 
00127 private:
00128   vtkWedge(const vtkWedge&);  // Not implemented.
00129   void operator=(const vtkWedge&);  // Not implemented.
00130 };
00131 
00132 inline int vtkWedge::GetParametricCenter(float pcoords[3])
00133 {
00134   pcoords[0] = pcoords[1] = 0.333333;
00135   pcoords[2] = 0.5;
00136   return 0;
00137 }
00138 
00139 #endif
00140 
00141 
00142