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80 lines
3.3 KiB
80 lines
3.3 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkDiscreteMarchingCubes.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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// .SECTION Thanks
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// Jim Miller at GE Research implemented the original version of this
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// filter.
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// This work was supported by PHS Research Grant No. 1 P41 RR13218-01
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// from the National Center for Research Resources and supported by a
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// grant from the DARPA, executed by the U.S. Army Medical Research
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// and Materiel Command/TATRC Cooperative Agreement,
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// Contract # W81XWH-04-2-0012.
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=========================================================================*/
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// .NAME vtkDiscreteMarchingCubes - generate object boundaries from
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// labelled volumes
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// .SECTION Description vtkDiscreteMarchingCubes is a filter that
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// takes as input a volume (e.g., 3D structured point set) of
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// segmentation labels and generates on output one or more
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// models representing the boundaries between the specified label and
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// the adjacent structures. One or more label values must be specified to
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// generate the models. The boundary positions are always defined to
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// be half-way between adjacent voxels. This filter works best with
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// integral scalar values.
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// If ComputeScalars is on (the default), each output cell will have
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// cell data that corresponds to the scalar value (segmentation label)
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// of the corresponding cube. Note that this differs from vtkMarchingCubes,
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// which stores the scalar value as point data. The rationale for this
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// difference is that cell vertices may be shared between multiple
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// cells. This also means that the resultant polydata may be
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// non-manifold (cell faces may be coincident). To further process the
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// polydata, users should either: 1) extract cells that have a common
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// scalar value using vtkThreshold, or 2) process the data with
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// filters that can handle non-manifold polydata
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// (e.g. vtkWindowedSincPolyDataFilter).
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// Also note, Normals and Gradients are not computed.
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// .SECTION Caveats
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// This filter is specialized to volumes. If you are interested in
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// contouring other types of data, use the general vtkContourFilter. If you
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// want to contour an image (i.e., a volume slice), use vtkMarchingSquares.
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// .SECTION See Also
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// vtkContourFilter vtkSliceCubes vtkMarchingSquares vtkDividingCubes
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#ifndef __vtkDiscreteMarchingCubes_h
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#define __vtkDiscreteMarchingCubes_h
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#include "vtkMarchingCubes.h"
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class VTK_GRAPHICS_EXPORT vtkDiscreteMarchingCubes : public vtkMarchingCubes
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{
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public:
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static vtkDiscreteMarchingCubes *New();
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vtkTypeRevisionMacro(vtkDiscreteMarchingCubes,vtkMarchingCubes);
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protected:
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vtkDiscreteMarchingCubes();
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~vtkDiscreteMarchingCubes();
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virtual int RequestData(vtkInformation *, vtkInformationVector **,
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vtkInformationVector *);
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private:
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vtkDiscreteMarchingCubes(const vtkDiscreteMarchingCubes&); // Not implemented.
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void operator=(const vtkDiscreteMarchingCubes&); // Not implemented.
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};
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#endif
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