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 =========================================================================*/
00054 #ifndef __vtkPyramid_h
00055 #define __vtkPyramid_h
00056 
00057 #include "vtkCell.h"
00058 #include "vtkLine.h"
00059 #include "vtkTriangle.h"
00060 #include "vtkQuad.h"
00061 
00062 class vtkUnstructuredGrid;
00063 
00064 class VTK_EXPORT vtkPyramid : public vtkCell
00065 {
00066 public:
00067   vtkTypeMacro(vtkPyramid,vtkCell);
00068 
00070   static vtkPyramid *New();
00071 
00073   vtkCell *MakeObject();
00074   int GetCellType() {return VTK_PYRAMID;};
00075   int GetCellDimension() {return 3;};
00076   int GetNumberOfEdges() {return 8;};
00077   int GetNumberOfFaces() {return 5;};
00078   vtkCell *GetEdge(int edgeId);
00079   vtkCell *GetFace(int faceId);
00080   static int *GetFaceArray(int faceId);
00081   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00082   void Contour(float value, vtkScalars *cellScalars, 
00083                vtkPointLocator *locator, vtkCellArray *verts, 
00084                vtkCellArray *lines, vtkCellArray *polys,
00085                vtkPointData *inPd, vtkPointData *outPd,
00086                vtkCellData *inCd, int cellId, vtkCellData *outCd);
00087   void Clip(float value, vtkScalars *cellScalars, 
00088             vtkPointLocator *locator, vtkCellArray *cells,
00089             vtkPointData *inPd, vtkPointData *outPd,
00090             vtkCellData *inCd, int cellId, vtkCellData *outCd, int insideOut);
00091   int EvaluatePosition(float x[3], float* closestPoint,
00092                        int& subId, float pcoords[3],
00093                        float& dist2, float *weights);
00094   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00095                         float *weights);
00096   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00097                         float x[3], float pcoords[3], int& subId);
00098   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00099   void Derivatives(int subId, float pcoords[3], float *values, 
00100                    int dim, float *derivs);
00101 
00103   int GetParametricCenter(float pcoords[3]);
00104 
00107   static void InterpolationFunctions(float pcoords[3], float weights[5]);
00108   static void InterpolationDerivs(float pcoords[3], float derivs[15]);
00109   int JacobianInverse(float pcoords[3], double **inverse, float derivs[15]);
00110 
00111 protected:
00112   vtkPyramid();
00113   ~vtkPyramid();
00114   vtkPyramid(const vtkPyramid&) {};
00115   void operator=(const vtkPyramid&) {};
00116 
00117   vtkLine *Line;
00118   vtkTriangle *Triangle;
00119   vtkQuad *Quad;
00120 
00121 };
00122 
00123 inline int vtkPyramid::GetParametricCenter(float pcoords[3])
00124 {
00125   pcoords[0] = pcoords[1] = 0.5;
00126   pcoords[2] = 0.333333;
00127   return 0;
00128 }
00129 
00130 #endif
00131 
00132 
00133