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 =========================================================================*/
00058 #ifndef __vtkPixel_h
00059 #define __vtkPixel_h
00060 
00061 #include "vtkCell.h"
00062 #include "vtkLine.h"
00063 
00064 class VTK_COMMON_EXPORT vtkPixel : public vtkCell
00065 {
00066 public:
00067   static vtkPixel *New();
00068   vtkTypeMacro(vtkPixel,vtkCell);
00069 
00071 
00072   vtkCell *MakeObject();
00073   int GetCellType() {return VTK_PIXEL;};
00074   int GetCellDimension() {return 2;};
00075   int GetNumberOfEdges() {return 4;};
00076   int GetNumberOfFaces() {return 0;};
00077   vtkCell *GetEdge(int edgeId);
00078   vtkCell *GetFace(int) {return 0;};
00079   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00080   void Contour(float value, vtkDataArray *cellScalars, 
00081                vtkPointLocator *locator, vtkCellArray *verts, 
00082                vtkCellArray *lines, vtkCellArray *polys,
00083                vtkPointData *inPd, vtkPointData *outPd,
00084                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00085   void Clip(float value, vtkDataArray *cellScalars, 
00086             vtkPointLocator *locator, vtkCellArray *polys,
00087             vtkPointData *inPd, vtkPointData *outPd,
00088             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00089             int insideOut);
00090   int EvaluatePosition(float x[3], float* closestPoint,
00091                        int& subId, float pcoords[3],
00092                        float& dist2, float *weights);
00093   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00094                         float *weights);
00095   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00096                         float x[3], float pcoords[3], int& subId);
00097   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00098   void Derivatives(int subId, float pcoords[3], float *values, 
00099                    int dim, float *derivs);
00101 
00103 
00104   static void InterpolationFunctions(float pcoords[3], float weights[4]);
00105   static void InterpolationDerivs(float pcoords[3], float derivs[8]);
00107 
00108   
00109 protected:
00110   vtkPixel();
00111   ~vtkPixel();
00112 
00113   vtkLine *Line;
00114 
00115 private:
00116   vtkPixel(const vtkPixel&);  // Not implemented.
00117   void operator=(const vtkPixel&);  // Not implemented.
00118 };
00119 
00120 #endif
00121 
00122