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 =========================================================================*/
00060 #ifndef __vtkTriangleStrip_h
00061 #define __vtkTriangleStrip_h
00062 
00063 #include "vtkCell.h"
00064 #include "vtkLine.h"
00065 #include "vtkTriangle.h"
00066 
00067 class VTK_COMMON_EXPORT vtkTriangleStrip : public vtkCell
00068 {
00069 public:
00070   static vtkTriangleStrip *New();
00071   vtkTypeMacro(vtkTriangleStrip,vtkCell);
00072 
00074 
00075   vtkCell *MakeObject();
00076   int GetCellType() {return VTK_TRIANGLE_STRIP;};
00077   int GetCellDimension() {return 2;};
00078   int GetNumberOfEdges() {return this->GetNumberOfPoints();};
00079   int GetNumberOfFaces() {return 0;};
00080   vtkCell *GetEdge(int edgeId);
00081   vtkCell *GetFace(int vtkNotUsed(faceId)) {return 0;};
00082   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00083   void Contour(float value, vtkDataArray *cellScalars, 
00084                vtkPointLocator *locator, vtkCellArray *verts, 
00085                vtkCellArray *lines, vtkCellArray *polys, 
00086                vtkPointData *inPd, vtkPointData *outPd,
00087                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00088   void Clip(float value, vtkDataArray *cellScalars, 
00089             vtkPointLocator *locator, vtkCellArray *polys,
00090             vtkPointData *inPd, vtkPointData *outPd,
00091             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00092             int insideOut);
00094 
00095   int EvaluatePosition(float x[3], float* closestPoint,
00096                        int& subId, float pcoords[3],
00097                        float& dist2, float *weights);
00098   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00099                         float *weights);
00100   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00101                         float x[3], float pcoords[3], int& subId);
00102   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00103   void Derivatives(int subId, float pcoords[3], float *values, 
00104                    int dim, float *derivs);
00105 
00107   int GetParametricCenter(float pcoords[3]);
00108 
00112   static void DecomposeStrip(int npts, vtkIdType *pts, vtkCellArray *tris);
00113   
00114 
00115 protected:
00116   vtkTriangleStrip();
00117   ~vtkTriangleStrip();
00118 
00119   vtkLine *Line;
00120   vtkTriangle *Triangle;
00121   
00122 private:
00123   vtkTriangleStrip(const vtkTriangleStrip&);  // Not implemented.
00124   void operator=(const vtkTriangleStrip&);  // Not implemented.
00125 };
00126 
00127 #endif
00128 
00129