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/*=========================================================================
Program: Visualization Toolkit
Module: vtkWedge.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.
=========================================================================*/
// .NAME vtkWedge - a 3D cell that represents a linear wedge
// .SECTION Description
// vtkWedge is a concrete implementation of vtkCell to represent a linear 3D
// wedge. A wedge consists of two triangular and three quadrilateral faces
// and is defined by the six points (0-5). vtkWedge uses the standard
// isoparametric shape functions for a linear wedge. The wedge is defined
// by the six points (0-5) where (0,1,2) is the base of the wedge which,
// using the right hand rule, forms a triangle whose normal points outward
// (away from the triangular face (3,4,5)).
// .SECTION See Also
// vtkConvexPointSet vtkHexahedron vtkPyramid vtkTetra vtkVoxel
#ifndef __vtkWedge_h
#define __vtkWedge_h
#include "vtkCell3D.h"
class vtkLine;
class vtkTriangle;
class vtkQuad;
class vtkUnstructuredGrid;
class vtkIncrementalPointLocator;
class VTK_FILTERING_EXPORT vtkWedge : public vtkCell3D
{
public:
static vtkWedge *New();
vtkTypeMacro(vtkWedge,vtkCell3D);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// See vtkCell3D API for description of these methods.
virtual void GetEdgePoints(int edgeId, int* &pts);
virtual void GetFacePoints(int faceId, int* &pts);
// Description:
// See the vtkCell API for descriptions of these methods.
int GetCellType() {return VTK_WEDGE;}
int GetCellDimension() {return 3;}
int GetNumberOfEdges() {return 9;}
int GetNumberOfFaces() {return 5;}
vtkCell *GetEdge(int edgeId);
vtkCell *GetFace(int faceId);
int CellBoundary(int subId, double pcoords[3], vtkIdList *pts);
void Contour(double value, vtkDataArray *cellScalars,
vtkIncrementalPointLocator *locator, vtkCellArray *verts,
vtkCellArray *lines, vtkCellArray *polys,
vtkPointData *inPd, vtkPointData *outPd,
vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
int EvaluatePosition(double x[3], double* closestPoint,
int& subId, double pcoords[3],
double& dist2, double *weights);
void EvaluateLocation(int& subId, double pcoords[3], double x[3],
double *weights);
int IntersectWithLine(double p1[3], double p2[3], double tol, double& t,
double x[3], double pcoords[3], int& subId);
int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts);
void Derivatives(int subId, double pcoords[3], double *values,
int dim, double *derivs);
virtual double *GetParametricCoords();
// Description:
// Return the center of the wedge in parametric coordinates.
int GetParametricCenter(double pcoords[3]);
// Description:
// @deprecated Replaced by vtkWedge::InterpolateFunctions as of VTK 5.2
static void InterpolationFunctions(double pcoords[3], double weights[6]);
// Description:
// @deprecated Replaced by vtkWedge::InterpolateDerivs as of VTK 5.2
static void InterpolationDerivs(double pcoords[3], double derivs[18]);
// Description:
// Compute the interpolation functions/derivatives
// (aka shape functions/derivatives)
virtual void InterpolateFunctions(double pcoords[3], double weights[6])
{
vtkWedge::InterpolationFunctions(pcoords,weights);
}
virtual void InterpolateDerivs(double pcoords[3], double derivs[18])
{
vtkWedge::InterpolationDerivs(pcoords,derivs);
}
int JacobianInverse(double pcoords[3], double **inverse, double derivs[18]);
// Description:
// Return the ids of the vertices defining edge/face (`edgeId`/`faceId').
// Ids are related to the cell, not to the dataset.
static int *GetEdgeArray(int edgeId);
static int *GetFaceArray(int faceId);
protected:
vtkWedge();
~vtkWedge();
vtkLine *Line;
vtkTriangle *Triangle;
vtkQuad *Quad;
private:
vtkWedge(const vtkWedge&); // Not implemented.
void operator=(const vtkWedge&); // Not implemented.
};
inline int vtkWedge::GetParametricCenter(double pcoords[3])
{
pcoords[0] = pcoords[1] = 0.333333;
pcoords[2] = 0.5;
return 0;
}
#endif
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