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# Filtering/vtkScalarTree.h

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    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 =========================================================================*/
    00050 #ifndef __vtkScalarTree_h
    00051 #define __vtkScalarTree_h
    00052
    00053 #include "vtkObject.h"
    00054
    00055 class vtkCell;
    00056 class vtkDataArray;
    00057 class vtkDataSet;
    00058 class vtkIdList;
    00059 class vtkTimeStamp;
    00060
    00061 class VTK_FILTERING_EXPORT vtkScalarTree : public vtkObject
    00062 {
    00063 public:
    00064   vtkTypeRevisionMacro(vtkScalarTree,vtkObject);
    00065   void PrintSelf(ostream& os, vtkIndent indent);
    00066
    00068
    00069   virtual void SetDataSet(vtkDataSet*);
    00070   vtkGetObjectMacro(DataSet,vtkDataSet);
    00072
    00076   virtual void BuildTree() = 0;
    00077
    00079   virtual void Initialize() = 0;
    00080
    00083   virtual void InitTraversal(float scalarValue) = 0;
    00084
    00086
    00090   virtual vtkCell *GetNextCell(vtkIdType &cellId, vtkIdList* &ptIds,
    00091                                vtkDataArray *cellScalars) = 0;
    00093
    00094 protected:
    00095   vtkScalarTree();
    00096   ~vtkScalarTree();
    00097
    00098   vtkDataSet   *DataSet;    //the dataset over which the scalar tree is built
    00099   vtkDataArray *Scalars;    //the scalars of the DataSet
    00100
    00101   vtkTimeStamp BuildTime; //time at which tree was built
    00102   float        ScalarValue; //current scalar value for traversal
    00103
    00104 private:
    00105   vtkScalarTree(const vtkScalarTree&);  // Not implemented.
    00106   void operator=(const vtkScalarTree&);  // Not implemented.
    00107 };
    00108
    00109 #endif
    00110
    00111