Common/vtkPyramid.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkPyramid.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 __vtkPyramid_h
00058 #define __vtkPyramid_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 vtkPyramid : public vtkCell3D
00068 {
00069 public:
00070   vtkTypeMacro(vtkPyramid,vtkCell);
00071 
00073   static vtkPyramid *New();
00074 
00076 
00077   virtual void GetEdgePoints(int edgeId, int* &pts);
00078   virtual void GetFacePoints(int faceId, int* &pts);
00080 
00082 
00083   vtkCell *MakeObject();
00084   int GetCellType() {return VTK_PYRAMID;}
00085   int GetCellDimension() {return 3;}
00086   int GetNumberOfEdges() {return 8;}
00087   int GetNumberOfFaces() {return 5;}
00088   vtkCell *GetEdge(int edgeId);
00089   vtkCell *GetFace(int faceId);
00090   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00091   void Contour(float value, vtkDataArray *cellScalars, 
00092                vtkPointLocator *locator, vtkCellArray *verts, 
00093                vtkCellArray *lines, vtkCellArray *polys,
00094                vtkPointData *inPd, vtkPointData *outPd,
00095                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00096   int EvaluatePosition(float x[3], float* closestPoint,
00097                        int& subId, float pcoords[3],
00098                        float& dist2, float *weights);
00099   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00100                         float *weights);
00101   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00102                         float x[3], float pcoords[3], int& subId);
00103   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00104   void Derivatives(int subId, float pcoords[3], float *values, 
00105                    int dim, float *derivs);
00107 
00109   int GetParametricCenter(float pcoords[3]);
00110 
00112 
00114   static void InterpolationFunctions(float pcoords[3], float weights[5]);
00115   static void InterpolationDerivs(float pcoords[3], float derivs[15]);
00116   int JacobianInverse(float pcoords[3], double **inverse, float derivs[15]);
00117   static int *GetEdgeArray(int edgeId);
00118   static int *GetFaceArray(int faceId);
00120 
00121 protected:
00122   vtkPyramid();
00123   ~vtkPyramid();
00124 
00125   vtkLine *Line;
00126   vtkTriangle *Triangle;
00127   vtkQuad *Quad;
00128 
00129 private:
00130   vtkPyramid(const vtkPyramid&);  // Not implemented.
00131   void operator=(const vtkPyramid&);  // Not implemented.
00132 };
00133 
00134 inline int vtkPyramid::GetParametricCenter(float pcoords[3])
00135 {
00136   pcoords[0] = pcoords[1] = 0.5;
00137   pcoords[2] = 0.333333;
00138   return 0;
00139 }
00140 
00141 #endif
00142 
00143 
00144