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Parallel/vtkPStreamTracer.h

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 =========================================================================*/
00039 #ifndef __vtkPStreamTracer_h
00040 #define __vtkPStreamTracer_h
00041 
00042 #include "vtkStreamTracer.h"
00043 
00044 class vtkInterpolatedVelocityField;
00045 class vtkMultiProcessController;
00046 
00047 class VTK_PARALLEL_EXPORT vtkPStreamTracer : public vtkStreamTracer
00048 {
00049 public:
00050   vtkTypeRevisionMacro(vtkPStreamTracer,vtkStreamTracer);
00051   void PrintSelf(ostream& os, vtkIndent indent);
00052 
00053   static vtkPStreamTracer *New();
00054 
00056 
00059   void SetController(vtkMultiProcessController* controller);
00060   vtkGetObjectMacro(Controller, vtkMultiProcessController);
00062 
00064 
00067   vtkGetStringMacro(InputVectorsSelection);
00068   void SelectInputVectors(const char *fieldName) 
00069     {this->SetInputVectorsSelection(fieldName);}
00071   
00072 protected:
00073 
00074   vtkPStreamTracer();
00075   ~vtkPStreamTracer();
00076 
00077   void Execute();
00078   void ExecuteInformation();
00079   void ComputeInputUpdateExtents( vtkDataObject *output );
00080 
00081   vtkMultiProcessController* Controller;
00082 
00083   vtkInterpolatedVelocityField* Interpolator;
00084   void SetInterpolator(vtkInterpolatedVelocityField*);
00085 
00086   void ForwardTask(float seed[3], 
00087                    int direction, int isNewSeed, int lastid, int currentLine);
00088   int ProcessTask(float seed[3], 
00089                   int direction, int isNewSeed, int lastid, int currentLine);
00090   int ReceiveAndProcessTask();
00091 
00092   vtkDataArray* Seeds;
00093   vtkIdList* SeedIds;
00094   vtkIntArray* IntegrationDirections;
00095 
00096 private:
00097   vtkPStreamTracer(const vtkPStreamTracer&);  // Not implemented.
00098   void operator=(const vtkPStreamTracer&);  // Not implemented.
00099 };
00100 
00101 
00102 #endif
00103 
00104