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vtkEnsembleSource.h
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vtkEnsembleSource.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkEnsembleSource.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.
=========================================================================*/
/**
* @class vtkEnsembleSource
* @brief source that manages dataset ensembles
*
* vtkEnsembleSource manages a collection of data sources in order to
* represent a dataset ensemble. It has the ability to provide meta-data
* about the ensemble in the form of a table, using the META_DATA key
* as well as accept a pipeline request using the UPDATE_MEMBER key.
* Note that it is expected that all ensemble members produce data of the
* same type.
*/
#ifndef vtkEnsembleSource_h
#define vtkEnsembleSource_h
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkAlgorithm.h"
struct vtkEnsembleSourceInternal;
class vtkTable;
class vtkInformationDataObjectMetaDataKey;
class vtkInformationIntegerRequestKey;
class vtkInformationIntegerKey;
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkEnsembleSource : public vtkAlgorithm
{
public:
static vtkEnsembleSource *New();
vtkTypeMacro(vtkEnsembleSource,vtkAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* Add an algorithm (source) that will produce the next ensemble member.
* This algorithm will be passed the REQUEST_INFORMATION, REQUEST_UPDATE_EXTENT
* and REQUEST_DATA pipeline passes for execution.
*/
void AddMember(vtkAlgorithm*);
/**
* Removes all ensemble members.
*/
void RemoveAllMembers();
/**
* Returns the number of ensemble members.
*/
unsigned int GetNumberOfMembers();
//@{
/**
* Set/Get the current ensemble member to process. Note that this data member
* will not be used if the UPDATE_MEMBER key is present in the pipeline. Also,
* this data member may be removed in the future. Unless it is absolutely necessary
* to use this data member, use the UPDATE_MEMBER key instead.
*/
vtkSetMacro(CurrentMember, unsigned int);
vtkGetMacro(CurrentMember, unsigned int);
//@}
/**
* Set the meta-data that will be propagated downstream. Make sure that this table
* has as many rows as the ensemble members and the meta-data for each row matches
* the corresponding ensemble source.
*/
void SetMetaData(vtkTable*);
/**
* Meta-data for the ensemble. This is set with SetMetaData.
*/
static vtkInformationDataObjectMetaDataKey* META_DATA();
/**
* Key used to request a particular ensemble member.
*/
static vtkInformationIntegerRequestKey* UPDATE_MEMBER();
protected:
vtkEnsembleSource();
~vtkEnsembleSource() VTK_OVERRIDE;
static vtkInformationIntegerKey* DATA_MEMBER();
friend class vtkInformationEnsembleMemberRequestKey;
int ProcessRequest(vtkInformation *request,
vtkInformationVector **inputVector,
vtkInformationVector *outputVector) VTK_OVERRIDE;
int FillOutputPortInformation(int, vtkInformation*) VTK_OVERRIDE;
vtkAlgorithm* GetCurrentReader(vtkInformation*);
vtkEnsembleSourceInternal* Internal;
unsigned int CurrentMember;
vtkTable* MetaData;
private:
vtkEnsembleSource(const vtkEnsembleSource&) VTK_DELETE_FUNCTION;
void operator=(const vtkEnsembleSource&) VTK_DELETE_FUNCTION;
};
#endif