VTK
vtkBiQuadraticTriangle.h
Go to the documentation of this file.
1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkBiQuadraticTriangle.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
38 #ifndef vtkBiQuadraticTriangle_h
39 #define vtkBiQuadraticTriangle_h
40 
41 #include "vtkCommonDataModelModule.h" // For export macro
42 #include "vtkNonLinearCell.h"
43 
44 class vtkQuadraticEdge;
45 class vtkTriangle;
46 class vtkDoubleArray;
47 
48 class VTKCOMMONDATAMODEL_EXPORT vtkBiQuadraticTriangle : public vtkNonLinearCell
49 {
50 public:
51  static vtkBiQuadraticTriangle *New();
53  void PrintSelf(ostream& os, vtkIndent indent) override;
54 
56 
60  int GetCellType() override {return VTK_BIQUADRATIC_TRIANGLE;};
61  int GetCellDimension() override {return 2;}
62  int GetNumberOfEdges() override {return 3;}
63  int GetNumberOfFaces() override {return 0;}
64  vtkCell *GetEdge(int edgeId) override;
65  vtkCell *GetFace(int) override {return nullptr;}
67 
68  int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts) override;
69  void Contour(double value, vtkDataArray *cellScalars,
71  vtkCellArray *lines, vtkCellArray *polys,
72  vtkPointData *inPd, vtkPointData *outPd,
73  vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd) override;
74  int EvaluatePosition(const double x[3], double closestPoint[3],
75  int& subId, double pcoords[3],
76  double& dist2, double weights[]) override;
77  void EvaluateLocation(int& subId, const double pcoords[3], double x[3],
78  double *weights) override;
79  int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) override;
80  void Derivatives(int subId, const double pcoords[3], const double *values,
81  int dim, double *derivs) override;
82  double *GetParametricCoords() override;
83 
89  void Clip(double value, vtkDataArray *cellScalars,
91  vtkPointData *inPd, vtkPointData *outPd,
92  vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
93  int insideOut) override;
94 
99  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t,
100  double x[3], double pcoords[3], int& subId) override;
101 
102 
106  int GetParametricCenter(double pcoords[3]) override;
107 
112  double GetParametricDistance(const double pcoords[3]) override;
113 
117  static void InterpolationFunctions(const double pcoords[3], double weights[7]);
121  static void InterpolationDerivs(const double pcoords[3], double derivs[14]);
123 
127  void InterpolateFunctions(const double pcoords[3], double weights[7]) override
128  {
130  }
131  void InterpolateDerivs(const double pcoords[3], double derivs[14]) override
132  {
134  }
136 
137 protected:
139  ~vtkBiQuadraticTriangle() override;
140 
143  vtkDoubleArray *Scalars; //used to avoid New/Delete in contouring/clipping
144 
145 private:
147  void operator=(const vtkBiQuadraticTriangle&) = delete;
148 };
149 //----------------------------------------------------------------------------
150 inline int vtkBiQuadraticTriangle::GetParametricCenter(double pcoords[3])
151 {
152  pcoords[0] = pcoords[1] = 1./3;
153  pcoords[2] = 0.0;
154  return 0;
155 }
156 
157 
158 #endif
159 
160 
vtkPoints
represent and manipulate 3D points
Definition: vtkPoints.h:33
vtkCell::IntersectWithLine
virtual int IntersectWithLine(const double p1[3], const double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)=0
Intersect with a ray.
vtkCell::Contour
virtual void Contour(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *verts, vtkCellArray *lines, vtkCellArray *polys, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd)=0
Generate contouring primitives.
vtkPointData
represent and manipulate point attribute data
Definition: vtkPointData.h:31
vtkBiQuadraticTriangle::GetCellDimension
int GetCellDimension() override
Return the topological dimensional of the cell (0,1,2, or 3).
Definition: vtkBiQuadraticTriangle.h:61
vtkX3D::value
Definition: vtkX3D.h:220
vtkIdType
int vtkIdType
Definition: vtkType.h:347
vtkObject::New
static vtkObject * New()
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
vtkBiQuadraticTriangle
cell represents a parabolic, isoparametric triangle
Definition: vtkBiQuadraticTriangle.h:48
vtkBiQuadraticTriangle::Scalars
vtkDoubleArray * Scalars
Definition: vtkBiQuadraticTriangle.h:143
vtkBiQuadraticTriangle::InterpolateDerivs
void InterpolateDerivs(const double pcoords[3], double derivs[14]) override
Definition: vtkBiQuadraticTriangle.h:131
vtkBiQuadraticTriangle::GetParametricCenter
int GetParametricCenter(double pcoords[3]) override
Return the center of the quadratic triangle in parametric coordinates.
Definition: vtkBiQuadraticTriangle.h:150
vtkDataArray
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:48
vtkCell::EvaluateLocation
virtual void EvaluateLocation(int &subId, const double pcoords[3], double x[3], double *weights)=0
Determine global coordinate (x[3]) from subId and parametric coordinates.
vtkBiQuadraticTriangle::InterpolateFunctions
void InterpolateFunctions(const double pcoords[3], double weights[7]) override
Compute the interpolation functions/derivatives (aka shape functions/derivatives)
Definition: vtkBiQuadraticTriangle.h:127
vtkBiQuadraticTriangle::Face
vtkTriangle * Face
Definition: vtkBiQuadraticTriangle.h:142
vtkCell::Triangulate
virtual int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts)=0
Generate simplices of proper dimension.
vtkBiQuadraticTriangle::GetNumberOfFaces
int GetNumberOfFaces() override
Return the number of faces in the cell.
Definition: vtkBiQuadraticTriangle.h:63
vtkBiQuadraticTriangle::GetNumberOfEdges
int GetNumberOfEdges() override
Return the number of edges in the cell.
Definition: vtkBiQuadraticTriangle.h:62
vtkCell
abstract class to specify cell behavior
Definition: vtkCell.h:56
vtkCellData
represent and manipulate cell attribute data
Definition: vtkCellData.h:32
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:33
vtkCellArray
object to represent cell connectivity
Definition: vtkCellArray.h:44
vtkIncrementalPointLocator
Abstract class in support of both point location and point insertion.
Definition: vtkIncrementalPointLocator.h:51
vtkIdList
list of point or cell ids
Definition: vtkIdList.h:30
vtkBiQuadraticTriangle::GetFace
vtkCell * GetFace(int) override
Return the face cell from the faceId of the cell.
Definition: vtkBiQuadraticTriangle.h:65
vtkTriangle
a cell that represents a triangle
Definition: vtkTriangle.h:35
vtkCell::CellBoundary
virtual int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts)=0
Given parametric coordinates of a point, return the closest cell boundary, and whether the point is i...
vtkBiQuadraticTriangle::GetCellType
int GetCellType() override
Implement the vtkCell API.
Definition: vtkBiQuadraticTriangle.h:60
vtkNonLinearCell.h
vtkCell::GetParametricDistance
virtual double GetParametricDistance(const double pcoords[3])
Return the distance of the parametric coordinate provided to the cell.
vtkCell::EvaluatePosition
virtual int EvaluatePosition(const double x[3], double closestPoint[3], int &subId, double pcoords[3], double &dist2, double weights[])=0
Given a point x[3] return inside(=1), outside(=0) cell, or (-1) computational problem encountered; ev...
vtkCell::GetParametricCoords
virtual double * GetParametricCoords())
Return a contiguous array of parametric coordinates of the points defining this cell.
vtkNonLinearCell
abstract superclass for non-linear cells
Definition: vtkNonLinearCell.h:36
vtkCell::Clip
virtual void Clip(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)=0
Cut (or clip) the cell based on the input cellScalars and the specified value.
vtkCell::GetEdge
virtual vtkCell * GetEdge(int edgeId)=0
Return the edge cell from the edgeId of the cell.
vtkNonLinearCell::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkBiQuadraticTriangle::Edge
vtkQuadraticEdge * Edge
Definition: vtkBiQuadraticTriangle.h:141
vtkCell::Derivatives
virtual void Derivatives(int subId, const double pcoords[3], const double *values, int dim, double *derivs)=0
Compute derivatives given cell subId and parametric coordinates.
vtkCell::GetParametricCenter
virtual int GetParametricCenter(double pcoords[3])
Return center of the cell in parametric coordinates.
vtkDoubleArray
dynamic, self-adjusting array of double
Definition: vtkDoubleArray.h:35
vtkBiQuadraticTriangle::InterpolationFunctions
static void InterpolationFunctions(const double pcoords[3], double weights[7])
vtkX3D::index
Definition: vtkX3D.h:246
vtkQuadraticEdge
cell represents a parabolic, isoparametric edge
Definition: vtkQuadraticEdge.h:40
vtkBiQuadraticTriangle::InterpolationDerivs
static void InterpolationDerivs(const double pcoords[3], double derivs[14])
VTK_BIQUADRATIC_TRIANGLE
Definition: vtkCellType.h:78