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108 lines
4.2 KiB
108 lines
4.2 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkCell3D.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkCell3D - abstract class to specify 3D cell interface
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// .SECTION Description
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// vtkCell3D is an abstract class that extends the interfaces for 3D data
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// cells, and implements methods needed to satisfy the vtkCell API. The
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// 3D cells include hexehedra, tetrahedra, wedge, pyramid, and voxel.
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// .SECTION See Also
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// vtkTetra vtkHexahedron vtkVoxel vtkWedge vtkPyramid
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#ifndef __vtkCell3D_h
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#define __vtkCell3D_h
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#include "vtkCell.h"
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class vtkOrderedTriangulator;
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class vtkTetra;
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class vtkCellArray;
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class vtkDoubleArray;
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class VTK_FILTERING_EXPORT vtkCell3D : public vtkCell
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{
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public:
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vtkTypeRevisionMacro(vtkCell3D,vtkCell);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Get the pair of vertices that define an edge. The method returns the
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// number of vertices, along with an array of vertices. Note that the
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// vertices are 0-offset; that is, they refer to the ids of the cell, not
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// the point ids of the mesh that the cell belongs to. The edgeId must
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// range between 0<=edgeId<this->GetNumberOfEdges().
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virtual void GetEdgePoints(int edgeId, int* &pts) = 0;
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// Description:
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// Get the list of vertices that define a face. The list is terminated
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// with a negative number. Note that the vertices are 0-offset; that is,
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// they refer to the ids of the cell, not the point ids of the mesh that
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// the cell belongs to. The faceId must range between
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// 0<=faceId<this->GetNumberOfFaces().
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virtual void GetFacePoints(int faceId, int* &pts) = 0;
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void Contour(double value, vtkDataArray *cellScalars,
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vtkPointLocator *locator, vtkCellArray *verts,
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vtkCellArray *lines, vtkCellArray *polys,
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vtkPointData *inPd, vtkPointData *outPd,
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vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd);
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// Description:
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// Cut (or clip) the cell based on the input cellScalars and the specified
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// value. The output of the clip operation will be one or more cells of the
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// same topological dimension as the original cell. The flag insideOut
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// controls what part of the cell is considered inside - normally cell
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// points whose scalar value is greater than "value" are considered
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// inside. If insideOut is on, this is reversed. Also, if the output cell
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// data is non-NULL, the cell data from the clipped cell is passed to the
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// generated contouring primitives. (Note: the CopyAllocate() method must
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// be invoked on both the output cell and point data. The cellId refers to
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// the cell from which the cell data is copied.) (Satisfies vtkCell API.)
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virtual void Clip(double value, vtkDataArray *cellScalars,
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vtkPointLocator *locator, vtkCellArray *connectivity,
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vtkPointData *inPd, vtkPointData *outPd,
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vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
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int insideOut);
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// Description:
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// The topological dimension of the cell. (Satisfies vtkCell API.)
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virtual int GetCellDimension() {return 3;}
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// Description:
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// Set the tolerance for merging clip intersection points that are near
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// the vertices of cells. This tolerance is used to prevent the generation
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// of degenerate tetrahedra during clipping.
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vtkSetClampMacro(MergeTolerance,double,0.0001,0.25);
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vtkGetMacro(MergeTolerance,double);
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protected:
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vtkCell3D();
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~vtkCell3D();
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vtkOrderedTriangulator *Triangulator;
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double MergeTolerance;
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//used to support clipping
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vtkTetra *ClipTetra;
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vtkDoubleArray *ClipScalars;
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private:
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vtkCell3D(const vtkCell3D&); // Not implemented.
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void operator=(const vtkCell3D&); // Not implemented.
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};
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#endif
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