VTK  9.3.0
vtkTriangleStrip.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
18 #ifndef vtkTriangleStrip_h
19 #define vtkTriangleStrip_h
20 
21 #include "vtkCell.h"
22 #include "vtkCommonDataModelModule.h" // For export macro
23 
24 VTK_ABI_NAMESPACE_BEGIN
25 class vtkLine;
26 class vtkTriangle;
28 
29 class VTKCOMMONDATAMODEL_EXPORT vtkTriangleStrip : public vtkCell
30 {
31 public:
32  static vtkTriangleStrip* New();
33  vtkTypeMacro(vtkTriangleStrip, vtkCell);
34  void PrintSelf(ostream& os, vtkIndent indent) override;
35 
37 
40  int GetCellType() override { return VTK_TRIANGLE_STRIP; }
41  int GetCellDimension() override { return 2; }
42  int GetNumberOfEdges() override { return this->GetNumberOfPoints(); }
43  int GetNumberOfFaces() override { return 0; }
44  vtkCell* GetEdge(int edgeId) override;
45  vtkCell* GetFace(int vtkNotUsed(faceId)) override { return nullptr; }
46  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
47  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
48  vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
49  vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
50  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
51  vtkCellArray* polys, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
52  vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
54 
55  int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
56  double& dist2, double weights[]) override;
57  void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
58  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
59  double pcoords[3], int& subId) override;
60  int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
62  int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
63  int IsPrimaryCell() override { return 0; }
64 
68  int GetParametricCenter(double pcoords[3]) override;
69 
74  static void DecomposeStrip(int npts, const vtkIdType* pts, vtkCellArray* tris);
75 
76 protected:
78  ~vtkTriangleStrip() override;
79 
82 
83 private:
84  vtkTriangleStrip(const vtkTriangleStrip&) = delete;
85  void operator=(const vtkTriangleStrip&) = delete;
86 };
87 
88 VTK_ABI_NAMESPACE_END
89 #endif
object to represent cell connectivity
Definition: vtkCellArray.h:176
represent and manipulate cell attribute data
Definition: vtkCellData.h:31
abstract class to specify cell behavior
Definition: vtkCell.h:50
vtkIdType GetNumberOfPoints() const
Return the number of points in the cell.
Definition: vtkCell.h:130
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:45
list of point or cell ids
Definition: vtkIdList.h:23
Abstract class in support of both point location and point insertion.
a simple class to control print indentation
Definition: vtkIndent.h:29
cell represents a 1D line
Definition: vtkLine.h:23
represent and manipulate point attribute data
Definition: vtkPointData.h:30
represent and manipulate 3D points
Definition: vtkPoints.h:29
a cell that represents a triangle strip
int IntersectWithLine(const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId) override
Intersect with a ray.
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
See the vtkCell API for descriptions of these methods.
int GetNumberOfFaces() override
See the vtkCell API for descriptions of these methods.
void EvaluateLocation(int &subId, const double pcoords[3], double x[3], double *weights) override
Determine global coordinate (x[3]) from subId and parametric coordinates.
static vtkTriangleStrip * New()
int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) override
Generate simplices of proper dimension.
vtkCell * GetEdge(int edgeId) override
See the vtkCell API for descriptions of these methods.
vtkTriangle * Triangle
int GetCellDimension() override
See the vtkCell API for descriptions of these methods.
int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts) override
See the vtkCell API for descriptions of these methods.
~vtkTriangleStrip() override
int GetNumberOfEdges() override
See the vtkCell API for descriptions of these methods.
void Clip(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut) override
See the vtkCell API for descriptions of these methods.
int GetParametricCenter(double pcoords[3]) override
Return the center of the point cloud in parametric coordinates.
void Derivatives(int subId, const double pcoords[3], const double *values, int dim, double *derivs) override
Compute derivatives given cell subId and parametric coordinates.
vtkCell * GetFace(int vtkNotUsed(faceId)) override
See the vtkCell API for descriptions of these methods.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
static void DecomposeStrip(int npts, const vtkIdType *pts, vtkCellArray *tris)
Given a triangle strip, decompose it into a list of (triangle) polygons.
int GetCellType() override
See the vtkCell API for descriptions of these methods.
int EvaluatePosition(const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[]) override
Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; ev...
int IsPrimaryCell() override
Return whether this cell type has a fixed topology or whether the topology varies depending on the da...
a cell that represents a triangle
Definition: vtkTriangle.h:28
@ value
Definition: vtkX3D.h:220
@ index
Definition: vtkX3D.h:246
@ VTK_TRIANGLE_STRIP
Definition: vtkCellType.h:43
int vtkIdType
Definition: vtkType.h:315