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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPChacoReader.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*----------------------------------------------------------------------------
Copyright (c) Sandia Corporation
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
/**
* @class vtkPChacoReader
* @brief Read Chaco files
*
* vtkPChacoReader is a unstructured grid source object that reads
* Chaco files. The file is read by process 0 and converted into
* a vtkUnstructuredGrid. The vtkDistributedDataFilter is invoked
* to divide the grid among the processes.
*/
#ifndef vtkPChacoReader_h
#define vtkPChacoReader_h
#include "vtkIOParallelModule.h" // For export macro
#include "vtkChacoReader.h"
class vtkTimerLog;
class vtkMultiProcessController;
class VTKIOPARALLEL_EXPORT vtkPChacoReader : public vtkChacoReader
{
public:
static vtkPChacoReader *New();
vtkTypeMacro(vtkPChacoReader,vtkChacoReader);
void PrintSelf(ostream& os, vtkIndent indent);
/**
* Set/Get the communicator object (we'll use global World controller
* if you don't set a different one).
*/
void SetController(vtkMultiProcessController *c);
vtkGetObjectMacro(Controller, vtkMultiProcessController);
protected:
vtkPChacoReader();
~vtkPChacoReader();
int RequestInformation(
vtkInformation *, vtkInformationVector **, vtkInformationVector *);
int RequestData(
vtkInformation *, vtkInformationVector **, vtkInformationVector *);
private:
vtkPChacoReader(const vtkPChacoReader&) VTK_DELETE_FUNCTION;
void operator=(const vtkPChacoReader&) VTK_DELETE_FUNCTION;
void SetUpEmptyGrid(vtkUnstructuredGrid *output);
int DivideCells(vtkMultiProcessController *contr, vtkUnstructuredGrid *output,
int source);
int SendGrid(vtkMultiProcessController *c, int to, vtkUnstructuredGrid *grid);
vtkUnstructuredGrid *GetGrid(vtkMultiProcessController *c, int from);
vtkUnstructuredGrid *SubGrid(vtkUnstructuredGrid *ug, vtkIdType from, vtkIdType to);
char *MarshallDataSet(vtkUnstructuredGrid *extractedGrid, int &len);
vtkUnstructuredGrid *UnMarshallDataSet(char *buf, int size);
int NumProcesses;
int MyId;
vtkMultiProcessController *Controller;
};
#endif
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