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dox/Filtering/vtkScalarTree.h

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkScalarTree.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00038 #ifndef __vtkScalarTree_h
00039 #define __vtkScalarTree_h
00040 
00041 #include "vtkObject.h"
00042 
00043 class vtkCell;
00044 class vtkDataArray;
00045 class vtkDataSet;
00046 class vtkIdList;
00047 class vtkTimeStamp;
00048 
00049 class VTK_FILTERING_EXPORT vtkScalarTree : public vtkObject
00050 {
00051 public:
00052   vtkTypeRevisionMacro(vtkScalarTree,vtkObject);
00053   void PrintSelf(ostream& os, vtkIndent indent);
00054 
00056 
00057   virtual void SetDataSet(vtkDataSet*);
00058   vtkGetObjectMacro(DataSet,vtkDataSet);
00060 
00064   virtual void BuildTree() = 0;
00065   
00067   virtual void Initialize() = 0;
00068 
00071   virtual void InitTraversal(float scalarValue) = 0;
00072 
00074 
00078   virtual vtkCell *GetNextCell(vtkIdType &cellId, vtkIdList* &ptIds,
00079                                vtkDataArray *cellScalars) = 0;
00081 
00082 protected:
00083   vtkScalarTree();
00084   ~vtkScalarTree();
00085 
00086   vtkDataSet   *DataSet;    //the dataset over which the scalar tree is built
00087   vtkDataArray *Scalars;    //the scalars of the DataSet
00088 
00089   vtkTimeStamp BuildTime; //time at which tree was built
00090   float        ScalarValue; //current scalar value for traversal
00091 
00092 private:
00093   vtkScalarTree(const vtkScalarTree&);  // Not implemented.
00094   void operator=(const vtkScalarTree&);  // Not implemented.
00095 };
00096 
00097 #endif
00098 
00099