common/vtkTriangleStrip.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkTriangleStrip.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 __vtkTriangleStrip_h
00058 #define __vtkTriangleStrip_h
00059 
00060 #include "vtkCell.h"
00061 #include "vtkLine.h"
00062 #include "vtkTriangle.h"
00063 
00064 class VTK_EXPORT vtkTriangleStrip : public vtkCell
00065 {
00066 public:
00067   static vtkTriangleStrip *New();
00068   vtkTypeMacro(vtkTriangleStrip,vtkCell);
00069 
00071   vtkCell *MakeObject();
00072   int GetCellType() {return VTK_TRIANGLE_STRIP;};
00073   int GetCellDimension() {return 2;};
00074   int GetNumberOfEdges() {return this->GetNumberOfPoints();};
00075   int GetNumberOfFaces() {return 0;};
00076   vtkCell *GetEdge(int edgeId);
00077   vtkCell *GetFace(int vtkNotUsed(faceId)) {return 0;};
00078   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00079   void Contour(float value, vtkScalars *cellScalars, 
00080                vtkPointLocator *locator, vtkCellArray *verts, 
00081                vtkCellArray *lines, vtkCellArray *polys, 
00082                vtkPointData *inPd, vtkPointData *outPd,
00083                vtkCellData *inCd, int cellId, vtkCellData *outCd);
00084   void Clip(float value, vtkScalars *cellScalars, 
00085             vtkPointLocator *locator, vtkCellArray *polys,
00086             vtkPointData *inPd, vtkPointData *outPd,
00087             vtkCellData *inCd, int cellId, vtkCellData *outCd, int insideOut);
00088   int EvaluatePosition(float x[3], float* closestPoint,
00089                        int& subId, float pcoords[3],
00090                        float& dist2, float *weights);
00091   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00092                         float *weights);
00093   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00094                         float x[3], float pcoords[3], int& subId);
00095   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00096   void Derivatives(int subId, float pcoords[3], float *values, 
00097                    int dim, float *derivs);
00098 
00100   int GetParametricCenter(float pcoords[3]);
00101 
00105   void DecomposeStrip(int npts, int *pts, vtkCellArray *tris);
00106   
00107 #ifndef VTK_REMOVE_LEGACY_CODE
00108 
00109   int CellBoundary(int subId, float pcoords[3], vtkIdList &pts)
00110     {VTK_LEGACY_METHOD(CellBoundary,"3.2"); return this->CellBoundary(subId, pcoords, &pts);}
00111   int Triangulate(int index, vtkIdList &ptIds, vtkPoints &pts)
00112     {VTK_LEGACY_METHOD(Triangulate,"3.2"); return this->Triangulate(index, &ptIds, &pts);}
00113 #endif
00114   
00115 
00116 protected:
00117   vtkTriangleStrip();
00118   ~vtkTriangleStrip();
00119   vtkTriangleStrip(const vtkTriangleStrip&) {};
00120   void operator=(const vtkTriangleStrip&) {};
00121 
00122   vtkLine *Line;
00123   vtkTriangle *Triangle;
00124   
00125 };
00126 
00127 #endif
00128 
00129