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Common/vtkLine.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkLine.h,v $
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00027 #ifndef __vtkLine_h
00028 #define __vtkLine_h
00029 
00030 #include "vtkCell.h"
00031 
00032 class VTK_COMMON_EXPORT vtkLine : public vtkCell
00033 {
00034 public:
00035   static vtkLine *New();
00036   vtkTypeRevisionMacro(vtkLine,vtkCell);
00037 
00039 
00040   int GetCellType() {return VTK_LINE;};
00041   int GetCellDimension() {return 1;};
00042   int GetNumberOfEdges() {return 0;};
00043   int GetNumberOfFaces() {return 0;};
00044   vtkCell *GetEdge(int) {return 0;};
00045   vtkCell *GetFace(int) {return 0;};
00046   int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
00047   void Contour(double value, vtkDataArray *cellScalars, 
00048                vtkPointLocator *locator, vtkCellArray *verts, 
00049                vtkCellArray *lines, vtkCellArray *polys, 
00050                vtkPointData *inPd, vtkPointData *outPd,
00051                vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
00052   int EvaluatePosition(double x[3], double* closestPoint,
00053                        int& subId, double pcoords[3], 
00054                        double& dist2, double *weights);
00055   void EvaluateLocation(int& subId, double pcoords[3], double x[3],
00056                         double *weights);
00057   int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
00058   void Derivatives(int subId, double pcoords[3], double *values, 
00059                    int dim, double *derivs);
00060   virtual double *GetParametricCoords();
00062 
00064 
00066   void Clip(double value, vtkDataArray *cellScalars, 
00067             vtkPointLocator *locator, vtkCellArray *lines,
00068             vtkPointData *inPd, vtkPointData *outPd,
00069             vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
00070             int insideOut);
00072 
00074 
00076   int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
00077                         double x[3], double pcoords[3], int& subId);
00079 
00080 
00082 
00087   static int Intersection(double p1[3], double p2[3], 
00088                           double x1[3], double x2[3],
00089                           double& u, double& v);
00091 
00092   
00094 
00096   static double DistanceToLine(double x[3], double p1[3], double p2[3], 
00097                               double &t, double closestPoint[3]);
00099   
00100   
00104   static double DistanceToLine(double x[3], double p1[3], double p2[3]);
00105 
00107   static void InterpolationFunctions(double pcoords[3], double weights[2]);
00108 
00109 protected:
00110   vtkLine();
00111   ~vtkLine() {};
00112 
00113 private:
00114   vtkLine(const vtkLine&);  // Not implemented.
00115   void operator=(const vtkLine&);  // Not implemented.
00116 };
00117 
00118 #endif
00119 
00120