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#include "vtkCPVTKPipeline.h"
#include <vtkCommunicator.h>
#include <vtkCompleteArrays.h>
#include <vtkCPDataDescription.h>
#include <vtkDataArray.h>
#include <vtkCPInputDataDescription.h>
#include <vtkMultiProcessController.h>
#include <vtkNew.h>
#include <vtkObjectFactory.h>
#include <vtkPointData.h>
#include <vtkPVArrayCalculator.h>
#include <vtkPVTrivialProducer.h>
#include <vtkSMProxyManager.h>
#include <vtkThreshold.h>
#include <vtkUnstructuredGrid.h>
#include <vtkXMLPUnstructuredGridWriter.h>
#include <string>
#include <sstream>
vtkStandardNewMacro(vtkCPVTKPipeline);
//----------------------------------------------------------------------------
vtkCPVTKPipeline::vtkCPVTKPipeline()
{
this->OutputFrequency = 0;
}
//----------------------------------------------------------------------------
vtkCPVTKPipeline::~vtkCPVTKPipeline()
{
}
//----------------------------------------------------------------------------
void vtkCPVTKPipeline::Initialize(int outputFrequency, std::string& fileName)
{
this->OutputFrequency = outputFrequency;
this->FileName = fileName;
}
//----------------------------------------------------------------------------
int vtkCPVTKPipeline::RequestDataDescription(
vtkCPDataDescription* dataDescription)
{
if(!dataDescription)
{
vtkWarningMacro("dataDescription is NULL.");
return 0;
}
if(this->FileName.empty())
{
vtkWarningMacro("No output file name given to output results to.");
return 0;
}
if(dataDescription->GetForceOutput() == true ||
(this->OutputFrequency != 0 && dataDescription->GetTimeStep() % this->OutputFrequency == 0) )
{
dataDescription->GetInputDescriptionByName("input")->AllFieldsOn();
dataDescription->GetInputDescriptionByName("input")->GenerateMeshOn();
return 1;
}
return 0;
}
//----------------------------------------------------------------------------
int vtkCPVTKPipeline::CoProcess(
vtkCPDataDescription* dataDescription)
{
if(!dataDescription)
{
vtkWarningMacro("DataDescription is NULL");
return 0;
}
vtkUnstructuredGrid* grid = vtkUnstructuredGrid::SafeDownCast(
dataDescription->GetInputDescriptionByName("input")->GetGrid());
if(grid == NULL)
{
vtkWarningMacro("DataDescription is missing input unstructured grid.");
return 0;
}
if(this->RequestDataDescription(dataDescription) == 0)
{
return 1;
}
vtkNew<vtkPVTrivialProducer> producer;
producer->SetOutput(grid);
vtkNew<vtkPVArrayCalculator> calculator;
calculator->SetInputConnection(producer->GetOutputPort());
calculator->SetAttributeMode(1);
calculator->SetResultArrayName("velocity magnitude");
calculator->SetFunction("mag(velocity)");
// update now so that we can get the global data bounds of
// the velocity magnitude for thresholding
calculator->Update();
double range[2];
vtkUnstructuredGrid::SafeDownCast(calculator->GetOutput())->GetPointData()
->GetArray("velocity magnitude")->GetRange(range, 0);
double globalRange[2];
vtkMultiProcessController::GetGlobalController()->AllReduce(
range+1, globalRange+1, 1, vtkCommunicator::MAX_OP);
vtkNew<vtkThreshold> threshold;
threshold->SetInputConnection(calculator->GetOutputPort());
threshold->SetInputArrayToProcess(
0, 0, 0, "vtkDataObject::FIELD_ASSOCIATION_POINTS", "velocity magnitude");
threshold->ThresholdBetween(0.9*globalRange[1], globalRange[1]);
// If process 0 doesn't have any points or cells, the writer may
// have problems in parallel so we use completeArrays to fill in
// the missing information.
vtkNew<vtkCompleteArrays> completeArrays;
completeArrays->SetInputConnection(threshold->GetOutputPort());
vtkNew<vtkXMLPUnstructuredGridWriter> writer;
writer->SetInputConnection(completeArrays->GetOutputPort());
std::ostringstream o;
o << dataDescription->GetTimeStep();
std::string name = this->FileName + o.str() + ".pvtu";
writer->SetFileName(name.c_str());
writer->Update();
return 1;
}
//----------------------------------------------------------------------------
void vtkCPVTKPipeline::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "OutputFrequency: " << this->OutputFrequency << "\n";
os << indent << "FileName: " << this->FileName << "\n";
}
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