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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPeriodicFiler.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.
=========================================================================*/
#include "vtkPeriodicFilter.h"
#include "vtkDataObjectTreeIterator.h"
#include "vtkDataSet.h"
#include "vtkInformationVector.h"
#include "vtkInformation.h"
#include "vtkMultiBlockDataSet.h"
#include "vtkMultiProcessController.h"
//----------------------------------------------------------------------------
vtkPeriodicFilter::vtkPeriodicFilter()
{
this->IterationMode = VTK_ITERATION_MODE_MAX;
this->NumberOfPeriods = 1;
this->ReducePeriodNumbers = false;
}
//----------------------------------------------------------------------------
vtkPeriodicFilter::~vtkPeriodicFilter()
{
}
//----------------------------------------------------------------------------
void vtkPeriodicFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
if (this->IterationMode == VTK_ITERATION_MODE_DIRECT_NB)
{
os << indent << "Iteration Mode: Direct Number" << endl;
os << indent << "Number of Periods: " << this->NumberOfPeriods << endl;
}
else
{
os << indent << "Iteration Mode: Maximum" << endl;
}
}
//----------------------------------------------------------------------------
void vtkPeriodicFilter::AddIndex(unsigned int index)
{
this->Indices.insert(index);
this->Modified();
}
//----------------------------------------------------------------------------
void vtkPeriodicFilter::RemoveIndex(unsigned int index)
{
this->Indices.erase(index);
this->Modified();
}
//----------------------------------------------------------------------------
void vtkPeriodicFilter::RemoveAllIndices()
{
this->Indices.clear();
this->Modified();
}
//----------------------------------------------------------------------------
int vtkPeriodicFilter::FillInputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
// now add our info
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataObject");
return 1;
}
//----------------------------------------------------------------------------
int vtkPeriodicFilter::RequestData(vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// Recover casted dataset
vtkDataObject* inputObject = vtkDataObject::GetData(inputVector[0], 0);
vtkDataObjectTree *input = vtkDataObjectTree::SafeDownCast(inputObject);
vtkDataSet* dsInput = vtkDataSet::SafeDownCast(inputObject);
vtkMultiBlockDataSet* mb = NULL;
vtkMultiBlockDataSet *output = vtkMultiBlockDataSet::GetData(outputVector, 0);
if (dsInput)
{
mb = vtkMultiBlockDataSet::New();
mb->SetNumberOfBlocks(1);
mb->SetBlock(0, dsInput);
this->AddIndex(1);
input = mb;
}
else if (this->Indices.empty())
{
// Trivial case
output->ShallowCopy(input);
return 1;
}
this->PeriodNumbers.clear();
output->CopyStructure(input);
// Copy selected blocks over to the output.
vtkDataObjectTreeIterator* iter = input->NewTreeIterator();
// Generate leaf multipieces
iter->VisitOnlyLeavesOn();
iter->SkipEmptyNodesOff();
iter->InitTraversal();
while (!iter->IsDoneWithTraversal() && this->Indices.size() > 0)
{
const unsigned int index = iter->GetCurrentFlatIndex();
if (this->Indices.find(index) != this->Indices.end())
{
this->CreatePeriodicDataSet(iter, output, input);
}
else
{
vtkDataObject* inputLeaf = input->GetDataSet(iter);
if (inputLeaf)
{
vtkDataObject* newLeaf = inputLeaf->NewInstance();
newLeaf->ShallowCopy(inputLeaf);
output->SetDataSet(iter, newLeaf);
newLeaf->Delete();
}
}
iter->GoToNextItem();
}
// Reduce period number in case of parrallelism, and update empty multipieces
if (this->ReducePeriodNumbers)
{
int* reducedPeriodNumbers = new int[this->PeriodNumbers.size()];
vtkMultiProcessController *controller = vtkMultiProcessController::GetGlobalController();
if (controller)
{
controller->AllReduce(&this->PeriodNumbers.front(), reducedPeriodNumbers,
this->PeriodNumbers.size(), vtkCommunicator::MAX_OP);
int i = 0;
iter->InitTraversal();
while (!iter->IsDoneWithTraversal() && this->Indices.size() > 0)
{
if (reducedPeriodNumbers[i] > this->PeriodNumbers[i])
{
const unsigned int index = iter->GetCurrentFlatIndex();
if (this->Indices.find(index) != this->Indices.end())
{
this->SetPeriodNumber(iter, output, reducedPeriodNumbers[i]);
}
}
iter->GoToNextItem();
i++;
}
}
delete [] reducedPeriodNumbers;
}
iter->Delete();
if (mb != NULL)
{
mb->Delete();
}
return 1;
}
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