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Parallel/vtkPStreamTracer.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkPStreamTracer.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 =========================================================================*/
00029 #ifndef __vtkPStreamTracer_h
00030 #define __vtkPStreamTracer_h
00031 
00032 #include "vtkStreamTracer.h"
00033 
00034 class vtkInterpolatedVelocityField;
00035 class vtkMultiProcessController;
00036 
00037 class VTK_PARALLEL_EXPORT vtkPStreamTracer : public vtkStreamTracer
00038 {
00039 public:
00040   vtkTypeRevisionMacro(vtkPStreamTracer,vtkStreamTracer);
00041   void PrintSelf(ostream& os, vtkIndent indent);
00042 
00043   static vtkPStreamTracer *New();
00044 
00046 
00049   void SetController(vtkMultiProcessController* controller);
00050   vtkGetObjectMacro(Controller, vtkMultiProcessController);
00052 
00054 
00057   vtkGetStringMacro(InputVectorsSelection);
00058   void SelectInputVectors(const char *fieldName) 
00059     {this->SetInputVectorsSelection(fieldName);}
00061   
00062 protected:
00063 
00064   vtkPStreamTracer();
00065   ~vtkPStreamTracer();
00066 
00067   void Execute();
00068   void ExecuteInformation();
00069   void ComputeInputUpdateExtents( vtkDataObject *output );
00070 
00071   vtkMultiProcessController* Controller;
00072 
00073   vtkInterpolatedVelocityField* Interpolator;
00074   void SetInterpolator(vtkInterpolatedVelocityField*);
00075 
00076   void ForwardTask(float seed[3], 
00077                    int direction, int isNewSeed, int lastid, int currentLine);
00078   int ProcessTask(float seed[3], 
00079                   int direction, int isNewSeed, int lastid, int currentLine);
00080   int ReceiveAndProcessTask();
00081 
00082   vtkDataArray* Seeds;
00083   vtkIdList* SeedIds;
00084   vtkIntArray* IntegrationDirections;
00085 
00086 private:
00087   vtkPStreamTracer(const vtkPStreamTracer&);  // Not implemented.
00088   void operator=(const vtkPStreamTracer&);  // Not implemented.
00089 };
00090 
00091 
00092 #endif
00093 
00094