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/*=========================================================================
Program: Visualization Toolkit
Module: vtkMultiTimeStepAlgorithm.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.
=========================================================================*/
// .NAME vtkMultiTimeStepAlgorithm - Superclass for algorithms that would like to
// make multiple time requests
// .SECTION Description
// This class can be inherited by any algorithm that wishes to make multiple
// time requests upstream.
// The child class uses UPDATE_TIME_STEPS to make the time requests and
// use set of time-stamped data objects are stored in time order
// in a vtkMultiBlockDataSet object.
#ifndef vtkMultiTimeStepAlgorithm_h
#define vtkMultiTimeStepAlgorithm_h
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkAlgorithm.h"
#include "vtkSmartPointer.h" //needed for a private variable
#include <vector> //needed for a private variable
#include "vtkDataObject.h" // needed for the smart pointer
class vtkInformationDoubleVectorKey;
class vtkMultiBlockDataSet;
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkMultiTimeStepAlgorithm : public vtkAlgorithm
{
public:
static vtkMultiTimeStepAlgorithm *New();
vtkTypeMacro(vtkMultiTimeStepAlgorithm,vtkAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
protected:
vtkMultiTimeStepAlgorithm();
~vtkMultiTimeStepAlgorithm()
{
};
// Description:
// This is filled by the child class to request multiple time steps
static vtkInformationDoubleVectorKey* UPDATE_TIME_STEPS();
// Description:
// This is called by the superclass.
// This is the method you should override.
virtual int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
{
return 1;
};
// Description:
// This is called by the superclass.
// This is the method you should override.
virtual int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
{
return 1;
};
// Description:
// This is called by the superclass.
// This is the method you should override.
virtual int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
{
return 1;
}
// Description:
// This is called by the superclass.
// This is the method you should override.
virtual int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
{
return 1;
}
int ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
bool CacheData;
unsigned int NumberOfCacheEntries;
private:
vtkMultiTimeStepAlgorithm(const vtkMultiTimeStepAlgorithm&); // Not implemented.
void operator=(const vtkMultiTimeStepAlgorithm&); // Not implemented.
vtkSmartPointer<vtkMultiBlockDataSet> MDataSet; //stores all the temporal data sets
int RequestUpdateIndex; //keep track of the time looping index
std::vector<double> UpdateTimeSteps; //store the requested time steps
bool IsInCache(double time, size_t& idx);
struct TimeCache
{
TimeCache(double time, vtkDataObject* data) : TimeValue(time), Data(data)
{
}
double TimeValue;
vtkSmartPointer<vtkDataObject> Data;
};
std::vector<TimeCache> Cache;
};
#endif
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