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Program: Visualization Toolkit
Module: vtkCell3D.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or for details.
This software is distributed WITHOUT ANY WARRANTY; without even
PURPOSE. See the above copyright notice for more information.
// .NAME vtkCell3D - abstract class to specify 3D cell interface
// .SECTION Description
// vtkCell3D is an abstract class that extends the interfaces for 3D data
// cells, and implements methods needed to satisfy the vtkCell API. The
// 3D cells include hexehedra, tetrahedra, wedge, pyramid, and voxel.
// .SECTION See Also
// vtkTetra vtkHexahedron vtkVoxel vtkWedge vtkPyramid
#ifndef __vtkCell3D_h
#define __vtkCell3D_h
#include "vtkCell.h"
class vtkOrderedTriangulator;
class vtkTetra;
class vtkCellArray;
class vtkDoubleArray;
class VTK_FILTERING_EXPORT vtkCell3D : public vtkCell
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Get the pair of vertices that define an edge. The method returns the
// number of vertices, along with an array of vertices. Note that the
// vertices are 0-offset; that is, they refer to the ids of the cell, not
// the point ids of the mesh that the cell belongs to. The edgeId must
// range between 0<=edgeId<this->GetNumberOfEdges().
virtual void GetEdgePoints(int edgeId, int* &pts) = 0;
// Description:
// Get the list of vertices that define a face. The list is terminated
// with a negative number. Note that the vertices are 0-offset; that is,
// they refer to the ids of the cell, not the point ids of the mesh that
// the cell belongs to. The faceId must range between
// 0<=faceId<this->GetNumberOfFaces().
virtual void GetFacePoints(int faceId, int* &pts) = 0;
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);
// Description:
// Cut (or clip) the cell based on the input cellScalars and the specified
// value. The output of the clip operation will be one or more cells of the
// same topological dimension as the original cell. The flag insideOut
// controls what part of the cell is considered inside - normally cell
// points whose scalar value is greater than "value" are considered
// inside. If insideOut is on, this is reversed. Also, if the output cell
// data is non-NULL, the cell data from the clipped cell is passed to the
// generated contouring primitives. (Note: the CopyAllocate() method must
// be invoked on both the output cell and point data. The cellId refers to
// the cell from which the cell data is copied.) (Satisfies vtkCell API.)
virtual void Clip(double value, vtkDataArray *cellScalars,
vtkIncrementalPointLocator *locator, vtkCellArray *connectivity,
vtkPointData *inPd, vtkPointData *outPd,
vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
int insideOut);
// Description:
// The topological dimension of the cell. (Satisfies vtkCell API.)
virtual int GetCellDimension() {return 3;}
// Description:
// Set the tolerance for merging clip intersection points that are near
// the vertices of cells. This tolerance is used to prevent the generation
// of degenerate tetrahedra during clipping.
vtkOrderedTriangulator *Triangulator;
double MergeTolerance;
//used to support clipping
vtkTetra *ClipTetra;
vtkDoubleArray *ClipScalars;
vtkCell3D(const vtkCell3D&); // Not implemented.
void operator=(const vtkCell3D&); // Not implemented.