VTK
vtkQuadraticTriangle.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkQuadraticTriangle.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 =========================================================================*/
35 #ifndef __vtkQuadraticTriangle_h
36 #define __vtkQuadraticTriangle_h
37 
38 #include "vtkNonLinearCell.h"
39 
40 class vtkQuadraticEdge;
41 class vtkTriangle;
42 class vtkDoubleArray;
43 
45 {
46 public:
47  static vtkQuadraticTriangle *New();
49  void PrintSelf(ostream& os, vtkIndent indent);
50 
52 
55  int GetCellDimension() {return 2;}
56  int GetNumberOfEdges() {return 3;}
57  int GetNumberOfFaces() {return 0;}
58  vtkCell *GetEdge(int edgeId);
59  vtkCell *GetFace(int) {return 0;}
61 
62  int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
63  void Contour(double value, vtkDataArray *cellScalars,
64  vtkIncrementalPointLocator *locator, vtkCellArray *verts,
65  vtkCellArray *lines, vtkCellArray *polys,
66  vtkPointData *inPd, vtkPointData *outPd,
67  vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
68  int EvaluatePosition(double x[3], double* closestPoint,
69  int& subId, double pcoords[3],
70  double& dist2, double *weights);
71  void EvaluateLocation(int& subId, double pcoords[3], double x[3],
72  double *weights);
73  int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
74  void Derivatives(int subId, double pcoords[3], double *values,
75  int dim, double *derivs);
76  virtual double *GetParametricCoords();
77 
79 
82  void Clip(double value, vtkDataArray *cellScalars,
83  vtkIncrementalPointLocator *locator, vtkCellArray *polys,
84  vtkPointData *inPd, vtkPointData *outPd,
85  vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
86  int insideOut);
88 
90 
92  int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
93  double x[3], double pcoords[3], int& subId);
95 
96 
99  int GetParametricCenter(double pcoords[3]);
100 
103  double GetParametricDistance(double pcoords[3]);
104 
106 
108  static void InterpolationFunctions(double pcoords[3], double weights[6]);
109  // Description:
110  // @deprecated Replaced by vtkQuadraticTriangle::InterpolateDerivs as of VTK 5.2
111  static void InterpolationDerivs(double pcoords[3], double derivs[12]);
112  // Description:
113  // Compute the interpolation functions/derivatives
114  // (aka shape functions/derivatives)
115  virtual void InterpolateFunctions(double pcoords[3], double weights[6])
116  {
118  }
119  virtual void InterpolateDerivs(double pcoords[3], double derivs[12])
120  {
122  }
124 
125 protected:
128 
129  vtkQuadraticEdge *Edge;
131  vtkDoubleArray *Scalars; //used to avoid New/Delete in contouring/clipping
132 
133 private:
134  vtkQuadraticTriangle(const vtkQuadraticTriangle&); // Not implemented.
135  void operator=(const vtkQuadraticTriangle&); // Not implemented.
136 };
137 //----------------------------------------------------------------------------
138 inline int vtkQuadraticTriangle::GetParametricCenter(double pcoords[3])
139 {
140  pcoords[0] = pcoords[1] = 1./3;
141  pcoords[2] = 0.0;
142  return 0;
143 }
144 
145 
146 #endif
147 
148 
vtkQuadraticEdge * Edge
represent and manipulate point attribute data
Definition: vtkPointData.h:35
#define VTK_FILTERING_EXPORT
virtual double * GetParametricCoords()
represent and manipulate cell attribute data
Definition: vtkCellData.h:36
virtual int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts)=0
virtual void EvaluateLocation(int &subId, double pcoords[3], double x[3], double *weights)=0
virtual int EvaluatePosition(double x[3], double *closestPoint, int &subId, double pcoords[3], double &dist2, double *weights)=0
abstract superclass for non-linear cells
virtual void InterpolateDerivs(double pcoords[3], double derivs[12])
int vtkIdType
Definition: vtkType.h:255
dynamic, self-adjusting array of double
abstract class to specify cell behavior
Definition: vtkCell.h:57
virtual double GetParametricDistance(double pcoords[3])
a simple class to control print indentation
Definition: vtkIndent.h:37
int GetParametricCenter(double pcoords[3])
list of point or cell ids
Definition: vtkIdList.h:34
virtual void Derivatives(int subId, double pcoords[3], double *values, int dim, double *derivs)=0
abstract superclass for arrays of numeric data
Definition: vtkDataArray.h:53
virtual int IntersectWithLine(double p1[3], double p2[3], double tol, double &t, double x[3], double pcoords[3], int &subId)=0
virtual void InterpolateFunctions(double pcoords[3], double weights[6])
static void InterpolationFunctions(double pcoords[3], double weights[6])
virtual void Clip(double value, vtkDataArray *cellScalars, vtkIncrementalPointLocator *locator, vtkCellArray *connectivity, vtkPointData *inPd, vtkPointData *outPd, vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd, int insideOut)=0
void PrintSelf(ostream &os, vtkIndent indent)
object to represent cell connectivity
Definition: vtkCellArray.h:48
virtual vtkCell * GetEdge(int edgeId)=0
static void InterpolationDerivs(double pcoords[3], double derivs[12])
a cell that represents a triangle
Definition: vtkTriangle.h:39
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
cell represents a parabolic, isoparametric triangle
virtual int CellBoundary(int subId, double pcoords[3], vtkIdList *pts)=0
static vtkObject * New()
virtual int GetParametricCenter(double pcoords[3])
represent and manipulate 3D points
Definition: vtkPoints.h:38