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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkXdmf3LightDataHandler.h
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 =========================================================================*/
00031 #ifndef vtkXdmf3LightDataHandler_h
00032 #define vtkXdmf3LightDataHandler_h
00033 
00034 #include "vtkIOXdmf3Module.h" // For export macro
00035 #include <set>
00036 #include "XdmfItem.hpp"
00037 #include "vtkType.h"
00038 
00039 class vtkXdmf3SILBuilder;
00040 class vtkXdmf3ArraySelection;
00041 class XdmfItem;
00042 class XdmfGraph;
00043 class XdmfGrid;
00044 
00045 class VTKIOXDMF3_EXPORT vtkXdmf3LightDataHandler
00046 {
00047 public:
00049 
00050   static shared_ptr<vtkXdmf3LightDataHandler> New(
00051       vtkXdmf3SILBuilder *sb,
00052       vtkXdmf3ArraySelection* f,
00053       vtkXdmf3ArraySelection* ce,
00054       vtkXdmf3ArraySelection* pn,
00055       vtkXdmf3ArraySelection* gc,
00056       vtkXdmf3ArraySelection* sc,
00057       unsigned int processor,
00058       unsigned int nprocessors);
00060 
00062   ~vtkXdmf3LightDataHandler();
00063 
00065 
00068   void InspectXDMF(shared_ptr<XdmfItem> item, vtkIdType parentVertex,
00069                    unsigned int depth=0);
00071 
00073   void ClearGridsIfNeeded(shared_ptr<XdmfItem> domain);
00074 
00077   std::set<double> getTimes();
00078 
00079 private:
00081   vtkXdmf3LightDataHandler();
00082 
00084   void InspectArrays(shared_ptr<XdmfItem> item);
00085 
00087   bool TooDeep(unsigned int depth);
00088 
00090   std::string UniqueName(std::string name, bool ForGrid);
00091 
00093 
00094   void AddNamedBlock(vtkIdType parentVertex,
00095                      std::string originalName, std::string uniqueName);
00097 
00099   void AddNamedSet(std::string uniqueName);
00100 
00102 
00104   void InspectTime(shared_ptr<XdmfItem> item);
00105   void GetSetTime(shared_ptr<XdmfGrid> child, unsigned int &cnt);
00106   void GetSetTime(shared_ptr<XdmfGraph> child, unsigned int &cnt);
00108 
00110   bool ShouldRead(unsigned int piece, unsigned int npieces);
00111 
00112   vtkXdmf3SILBuilder *SILBuilder;
00113   vtkXdmf3ArraySelection *FieldArrays;
00114   vtkXdmf3ArraySelection *CellArrays; //ie EdgeArrays for Graphs
00115   vtkXdmf3ArraySelection *PointArrays; //ie NodeArrays for Graphs
00116   vtkXdmf3ArraySelection *GridsCache;
00117   vtkXdmf3ArraySelection *SetsCache;
00118   unsigned int MaxDepth;
00119   unsigned int Rank;
00120   unsigned int NumProcs;
00121   std::set<double> times; //relying on implicit sort from set<double>
00122 };
00123 
00124 #endif //vtkXdmf3LightDataHandler_h