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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 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.
=========================================================================*/
/**
* @class vtkCell3D
* @brief abstract class to specify 3D cell interface
*
* 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.
*
* @sa
* vtkTetra vtkHexahedron vtkVoxel vtkWedge vtkPyramid
*/
#ifndef vtkCell3D_h
#define vtkCell3D_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkCell.h"
class vtkOrderedTriangulator;
class vtkTetra;
class vtkCellArray;
class vtkDoubleArray;
class VTKCOMMONDATAMODEL_EXPORT vtkCell3D : public vtkCell
{
public:
vtkTypeMacro(vtkCell3D,vtkCell);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* 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;
/**
* 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;
void Contour(double value, vtkDataArray *cellScalars,
vtkIncrementalPointLocator *locator, vtkCellArray *verts,
vtkCellArray *lines, vtkCellArray *polys,
vtkPointData *inPd, vtkPointData *outPd,
vtkCellData *inCd, vtkIdType cellId,
vtkCellData *outCd) VTK_OVERRIDE;
/**
* 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.)
*/
void Clip(double value, vtkDataArray *cellScalars,
vtkIncrementalPointLocator *locator, vtkCellArray *connectivity,
vtkPointData *inPd, vtkPointData *outPd,
vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
int insideOut) VTK_OVERRIDE;
/**
* The topological dimension of the cell. (Satisfies vtkCell API.)
*/
int GetCellDimension() VTK_OVERRIDE {return 3;}
//@{
/**
* 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.
*/
vtkSetClampMacro(MergeTolerance,double,0.0001,0.25);
vtkGetMacro(MergeTolerance,double);
//@}
protected:
vtkCell3D();
~vtkCell3D() VTK_OVERRIDE;
vtkOrderedTriangulator *Triangulator;
double MergeTolerance;
//used to support clipping
vtkTetra *ClipTetra;
vtkDoubleArray *ClipScalars;
private:
vtkCell3D(const vtkCell3D&) VTK_DELETE_FUNCTION;
void operator=(const vtkCell3D&) VTK_DELETE_FUNCTION;
};
#endif
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