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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPolyLine.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkPolyLine - cell represents a set of 1D lines
// .SECTION Description
// vtkPolyLine is a concrete implementation of vtkCell to represent a set
// of 1D lines.
#ifndef __vtkPolyLine_h
#define __vtkPolyLine_h
#include "vtkCell.h"
class vtkPoints;
class vtkCellArray;
class vtkLine;
class vtkDataArray;
class vtkIncrementalPointLocator;
class vtkCellData;
class VTK_FILTERING_EXPORT vtkPolyLine : public vtkCell
{
public:
static vtkPolyLine *New();
vtkTypeMacro(vtkPolyLine,vtkCell);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Given points and lines, compute normals to lines. These are not true
// normals, they are "orientation" normals used by classes like vtkTubeFilte
// that control the rotation around the line. The normals try to stay pointing
// in the same direction as much as possible (i.e., minimal rotation).
static int GenerateSlidingNormals(vtkPoints *, vtkCellArray *, vtkDataArray *);
static int GenerateSlidingNormals(vtkPoints *, vtkCellArray *, vtkDataArray *,
double* firstNormal);
// Description:
// See the vtkCell API for descriptions of these methods.
int GetCellType() {return VTK_POLY_LINE;};
int GetCellDimension() {return 1;};
int GetNumberOfEdges() {return 0;};
int GetNumberOfFaces() {return 0;};
vtkCell *GetEdge(int vtkNotUsed(edgeId)) {return 0;};
vtkCell *GetFace(int vtkNotUsed(faceId)) {return 0;};
int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
void Contour(double value, vtkDataArray *cellScalars,
vtkIncrementalPointLocator *locator, vtkCellArray *verts,
vtkCellArray *lines, vtkCellArray *polys,
vtkPointData *inPd, vtkPointData *outPd,
vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
void Clip(double value, vtkDataArray *cellScalars,
vtkIncrementalPointLocator *locator, vtkCellArray *lines,
vtkPointData *inPd, vtkPointData *outPd,
vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
int insideOut);
int EvaluatePosition(double x[3], double* closestPoint,
int& subId, double pcoords[3],
double& dist2, double *weights);
void EvaluateLocation(int& subId, double pcoords[3], double x[3],
double *weights);
int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
double x[3], double pcoords[3], int& subId);
int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
void Derivatives(int subId, double pcoords[3], double *values,
int dim, double *derivs);
int IsPrimaryCell() {return 0;}
// Description:
// Return the center of the point cloud in parametric coordinates.
int GetParametricCenter(double pcoords[3]);
// Description:
// Compute the interpolation functions/derivatives
// (aka shape functions/derivatives)
virtual void InterpolateFunctions(double pcoords[3], double *weights);
virtual void InterpolateDerivs(double pcoords[3], double *derivs);
protected:
vtkPolyLine();
~vtkPolyLine();
vtkLine *Line;
private:
vtkPolyLine(const vtkPolyLine&); // Not implemented.
void operator=(const vtkPolyLine&); // Not implemented.
};
#endif