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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.
=========================================================================*/
/**
* @class vtkPolyLine
* @brief cell represents a set of 1D lines
*
* vtkPolyLine is a concrete implementation of vtkCell to represent a set
* of 1D lines.
*/
#ifndef vtkPolyLine_h
#define vtkPolyLine_h
#include "vtkCell.h"
#include "vtkCommonDataModelModule.h" // For export macro
class vtkPoints;
class vtkCellArray;
class vtkLine;
class vtkDataArray;
class vtkIncrementalPointLocator;
class vtkCellData;
class VTKCOMMONDATAMODEL_EXPORT vtkPolyLine : public vtkCell
{
public:
static vtkPolyLine* New();
vtkTypeMacro(vtkPolyLine, vtkCell);
void PrintSelf(ostream& os, vtkIndent indent) override;
//@{
/**
* Given points and lines, compute normals to lines. These are not true
* normals, they are "orientation" normals used by classes like vtkTubeFilter
* 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) w.r.t the
* firstNormal (computed if nullptr). Always returns 1 (success).
*/
static int GenerateSlidingNormals(vtkPoints*, vtkCellArray*, vtkDataArray*);
static int GenerateSlidingNormals(vtkPoints*, vtkCellArray*, vtkDataArray*, double* firstNormal);
//@}
//@{
/**
* See the vtkCell API for descriptions of these methods.
*/
int GetCellType() override { return VTK_POLY_LINE; }
int GetCellDimension() override { return 1; }
int GetNumberOfEdges() override { return 0; }
int GetNumberOfFaces() override { return 0; }
vtkCell* GetEdge(int vtkNotUsed(edgeId)) override { return nullptr; }
vtkCell* GetFace(int vtkNotUsed(faceId)) override { return nullptr; }
int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
vtkCellArray* lines, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
double& dist2, double weights[]) override;
void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
double pcoords[3], int& subId) override;
int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
void Derivatives(
int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
int IsPrimaryCell() override { return 0; }
//@}
/**
* Return the center of the point cloud in parametric coordinates.
*/
int GetParametricCenter(double pcoords[3]) override;
protected:
vtkPolyLine();
~vtkPolyLine() override;
vtkLine* Line;
private:
vtkPolyLine(const vtkPolyLine&) = delete;
void operator=(const vtkPolyLine&) = delete;
};
#endif
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