common/vtkQuad.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkQuad.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 =========================================================================*/
00053 #ifndef __vtkQuad_h
00054 #define __vtkQuad_h
00055 
00056 #include "vtkCell.h"
00057 #include "vtkLine.h"
00058 
00059 class VTK_EXPORT vtkQuad : public vtkCell
00060 {
00061 public:
00062   static vtkQuad *New();
00063   vtkTypeMacro(vtkQuad,vtkCell);
00064 
00066   vtkCell *MakeObject();
00067   int GetCellType() {return VTK_QUAD;};
00068   int GetCellDimension() {return 2;};
00069   int GetNumberOfEdges() {return 4;};
00070   int GetNumberOfFaces() {return 0;};
00071   vtkCell *GetEdge(int edgeId);
00072   vtkCell *GetFace(int) {return 0;};
00073   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00074   void Contour(float value, vtkScalars *cellScalars, 
00075                vtkPointLocator *locator, vtkCellArray *verts, 
00076                vtkCellArray *lines, vtkCellArray *polys,
00077                vtkPointData *inPd, vtkPointData *outPd,
00078                vtkCellData *inCd, int 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 IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00085                         float x[3], float pcoords[3], int& subId);
00086   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00087   void Derivatives(int subId, float pcoords[3], float *values, 
00088                    int dim, float *derivs);
00089 
00092   void Clip(float value, vtkScalars *cellScalars, 
00093             vtkPointLocator *locator, vtkCellArray *polys,
00094             vtkPointData *inPd, vtkPointData *outPd,
00095             vtkCellData *inCd, int cellId, vtkCellData *outCd, int insideOut);
00096 
00098   static void InterpolationFunctions(float pcoords[3], float sf[4]);
00099   static void InterpolationDerivs(float pcoords[3], float derivs[8]);
00100 
00101 #ifndef VTK_REMOVE_LEGACY_CODE
00102 
00103   int CellBoundary(int subId, float pcoords[3], vtkIdList &pts)
00104     {VTK_LEGACY_METHOD(CellBoundary,"3.2"); return this->CellBoundary(subId, pcoords, &pts);}
00105   int Triangulate(int index, vtkIdList &ptIds, vtkPoints &pts)
00106     {VTK_LEGACY_METHOD(Triangulate,"3.2"); return this->Triangulate(index, &ptIds, &pts);}
00107 #endif
00108   
00109 
00110 protected:
00111   vtkQuad();
00112   ~vtkQuad();
00113   vtkQuad(const vtkQuad&) {};
00114   void operator=(const vtkQuad&) {};
00115 
00116   vtkLine *Line;
00117 
00118 };
00119 
00120 #endif
00121 
00122