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Common/vtkLine.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkLine.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00044 #ifndef __vtkLine_h
00045 #define __vtkLine_h
00046 
00047 #include "vtkCell.h"
00048 
00049 class VTK_COMMON_EXPORT vtkLine : public vtkCell
00050 {
00051 public:
00052   static vtkLine *New();
00053   vtkTypeRevisionMacro(vtkLine,vtkCell);
00054 
00056 
00057   int GetCellType() {return VTK_LINE;};
00058   int GetCellDimension() {return 1;};
00059   int GetNumberOfEdges() {return 0;};
00060   int GetNumberOfFaces() {return 0;};
00061   vtkCell *GetEdge(int) {return 0;};
00062   vtkCell *GetFace(int) {return 0;};
00063   int CellBoundary(int subId, float pcoords[3], vtkIdList *pts);
00064   void Contour(float value, vtkDataArray *cellScalars, 
00065                vtkPointLocator *locator, vtkCellArray *verts, 
00066                vtkCellArray *lines, vtkCellArray *polys, 
00067                vtkPointData *inPd, vtkPointData *outPd,
00068                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00069   int EvaluatePosition(float x[3], float* closestPoint,
00070                        int& subId, float pcoords[3], 
00071                        float& dist2, float *weights);
00072   void EvaluateLocation(int& subId, float pcoords[3], float x[3],
00073                         float *weights);
00074   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00075   void Derivatives(int subId, float pcoords[3], float *values, 
00076                    int dim, float *derivs);
00078 
00080 
00082   void Clip(float value, vtkDataArray *cellScalars, 
00083             vtkPointLocator *locator, vtkCellArray *lines,
00084             vtkPointData *inPd, vtkPointData *outPd,
00085             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00086             int insideOut);
00088 
00090 
00092   int IntersectWithLine(float p1[3], float p2[3], float tol, float& t,
00093                         float x[3], float pcoords[3], int& subId);
00095 
00096 
00098 
00103   static int Intersection(float p1[3], float p2[3], float x1[3], float x2[3],
00104                           float& u, float& v);
00106 
00107   
00109 
00111   static float DistanceToLine(float x[3], float p1[3], float p2[3], 
00112                               float &t, float closestPoint[3]);
00114   
00115   
00119   static float DistanceToLine(float x[3], float p1[3], float p2[3]);
00120 
00122   static void InterpolationFunctions(float pcoords[3], float weights[2]);
00123 
00124 protected:
00125   vtkLine();
00126   ~vtkLine() {};
00127 
00128 private:
00129   vtkLine(const vtkLine&);  // Not implemented.
00130   void operator=(const vtkLine&);  // Not implemented.
00131 };
00132 
00133 #endif
00134 
00135