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vtkBiQuadraticQuad.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkBiQuadraticQuad.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 =========================================================================*/
42 #ifndef __vtkBiQuadraticQuad_h
43 #define __vtkBiQuadraticQuad_h
44 
45 #include "vtkCommonDataModelModule.h" // For export macro
46 #include "vtkNonLinearCell.h"
47 
48 class vtkQuadraticEdge;
49 class vtkQuad;
50 class vtkTriangle;
51 class vtkDoubleArray;
52 
53 class VTKCOMMONDATAMODEL_EXPORT vtkBiQuadraticQuad : public vtkNonLinearCell
54 {
55 public:
56  static vtkBiQuadraticQuad *New ();
57  vtkTypeMacro(vtkBiQuadraticQuad,vtkNonLinearCell);
58  void PrintSelf (ostream & os, vtkIndent indent);
59 
61 
63  int GetCellType () { return VTK_BIQUADRATIC_QUAD; }
64  int GetCellDimension () { return 2; }
65  int GetNumberOfEdges () { return 4; }
66  int GetNumberOfFaces () { return 0; }
67  vtkCell *GetEdge (int);
68  vtkCell *GetFace (int) { return 0; }
70 
71  int CellBoundary (int subId, double pcoords[3], vtkIdList * pts);
72  int EvaluatePosition (double x[3], double *closestPoint,
73  int &subId, double pcoords[3],
74  double &dist2, double *weights);
75  void EvaluateLocation (int &subId, double pcoords[3], double x[3],
76  double *weights);
77  int Triangulate (int index, vtkIdList * ptIds, vtkPoints * pts);
78  void Derivatives (int subId, double pcoords[3], double *values,
79  int dim, double *derivs);
80  virtual double *GetParametricCoords();
81 
82  void Contour (double value, vtkDataArray * cellScalars,
83  vtkIncrementalPointLocator * locator, vtkCellArray * verts,
84  vtkCellArray * lines, vtkCellArray * polys,
85  vtkPointData * inPd, vtkPointData * outPd, vtkCellData * inCd,
86  vtkIdType cellId, vtkCellData * outCd);
87 
89 
92  void Clip (double value, vtkDataArray * cellScalars,
93  vtkIncrementalPointLocator * locator, vtkCellArray * polys,
94  vtkPointData * inPd, vtkPointData * outPd,
95  vtkCellData * inCd, vtkIdType cellId, vtkCellData * outCd,
96  int insideOut);
98 
100 
102  int IntersectWithLine (double p1[3], double p2[3], double tol, double &t,
103  double x[3], double pcoords[3], int &subId);
105 
107  int GetParametricCenter(double pcoords[3]);
108 
111  static void InterpolationFunctions (double pcoords[3], double weights[9]);
114  static void InterpolationDerivs (double pcoords[3], double derivs[18]);
116 
118  virtual void InterpolateFunctions (double pcoords[3], double weights[9])
119  {
120  vtkBiQuadraticQuad::InterpolationFunctions(pcoords,weights);
121  }
122  virtual void InterpolateDerivs (double pcoords[3], double derivs[18])
123  {
124  vtkBiQuadraticQuad::InterpolationDerivs(pcoords,derivs);
125  }
127 
128 protected:
129  vtkBiQuadraticQuad();
130  ~vtkBiQuadraticQuad();
131 
132  vtkQuadraticEdge *Edge;
133  vtkQuad *Quad;
134  vtkTriangle *Triangle;
135  vtkDoubleArray *Scalars;
136 
137 private:
138  vtkBiQuadraticQuad(const vtkBiQuadraticQuad&); // Not implemented.
139  void operator=(const vtkBiQuadraticQuad&); // Not implemented.
140 };
141 //----------------------------------------------------------------------------
142 inline int vtkBiQuadraticQuad::GetParametricCenter(double pcoords[3])
143 {
144  pcoords[0] = pcoords[1] = 0.5;
145  pcoords[2] = 0.;
146  return 0;
147 }
148 
149 #endif
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