common/vtkPixel.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkPixel.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 =========================================================================*/
00055 #ifndef __vtkPixel_h
00056 #define __vtkPixel_h
00057 
00058 #include "vtkCell.h"
00059 #include "vtkLine.h"
00060 
00061 class VTK_EXPORT vtkPixel : public vtkCell
00062 {
00063 public:
00064   static vtkPixel *New();
00065   vtkTypeMacro(vtkPixel,vtkCell);
00066 
00068   vtkCell *MakeObject();
00069   int GetCellType() {return VTK_PIXEL;};
00070   int GetCellDimension() {return 2;};
00071   int GetNumberOfEdges() {return 4;};
00072   int GetNumberOfFaces() {return 0;};
00073   vtkCell *GetEdge(int edgeId);
00074   vtkCell *GetFace(int) {return 0;};
00075   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00076   void Contour(float value, vtkScalars *cellScalars, 
00077                vtkPointLocator *locator, vtkCellArray *verts, 
00078                vtkCellArray *lines, vtkCellArray *polys,
00079                vtkPointData *inPd, vtkPointData *outPd,
00080                vtkCellData *inCd, int cellId, vtkCellData *outCd);
00081   void Clip(float value, vtkScalars *cellScalars, 
00082             vtkPointLocator *locator, vtkCellArray *polys,
00083             vtkPointData *inPd, vtkPointData *outPd,
00084             vtkCellData *inCd, int cellId, vtkCellData *outCd, int insideOut);
00085   int EvaluatePosition(float x[3], float* closestPoint,
00086                        int& subId, float pcoords[3],
00087                        float& dist2, float *weights);
00088   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00089                         float *weights);
00090   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00091                         float x[3], float pcoords[3], int& subId);
00092   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00093   void Derivatives(int subId, float pcoords[3], float *values, 
00094                    int dim, float *derivs);
00095 
00097   static void InterpolationFunctions(float pcoords[3], float weights[4]);
00098   static void InterpolationDerivs(float pcoords[3], float derivs[8]);
00099 
00100 #ifndef VTK_REMOVE_LEGACY_CODE
00101 
00102   int CellBoundary(int subId, float pcoords[3], vtkIdList &pts)
00103     {VTK_LEGACY_METHOD(CellBoundary,"3.2"); return this->CellBoundary(subId, pcoords, &pts);}
00104   int Triangulate(int index, vtkIdList &ptIds, vtkPoints &pts)
00105     {VTK_LEGACY_METHOD(Triangulate,"3.2"); return this->Triangulate(index, &ptIds, &pts);}
00106 #endif
00107   
00108   
00109 protected:
00110   vtkPixel();
00111   ~vtkPixel();
00112   vtkPixel(const vtkPixel&) {};
00113   void operator=(const vtkPixel&) {};
00114 
00115   vtkLine *Line;
00116 
00117 };
00118 
00119 #endif
00120 
00121