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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkPOutlineFilter.cxx,v $
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 "vtkPOutlineFilter.h"
#include "vtkCompositeDataSet.h"
#include "vtkDataSet.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkMath.h"
#include "vtkMultiProcessController.h"
#include "vtkObjectFactory.h"
#include "vtkOutlineSource.h"
#include "vtkPolyData.h"
#include "vtkStreamingDemandDrivenPipeline.h"
vtkCxxRevisionMacro(vtkPOutlineFilter, "$Revision: 1.9 $");
vtkStandardNewMacro(vtkPOutlineFilter);
vtkCxxSetObjectMacro(vtkPOutlineFilter, Controller, vtkMultiProcessController);
vtkPOutlineFilter::vtkPOutlineFilter ()
{
this->Controller = 0;
this->SetController(vtkMultiProcessController::GetGlobalController());
this->OutlineSource = vtkOutlineSource::New();
}
vtkPOutlineFilter::~vtkPOutlineFilter ()
{
this->SetController(0);
if (this->OutlineSource != NULL)
{
this->OutlineSource->Delete ();
this->OutlineSource = NULL;
}
}
int vtkPOutlineFilter::RequestData(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
// get the input and ouptut
vtkDataSet *input = vtkDataSet::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkPolyData *output = vtkPolyData::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
double bds[6];
int procid = 0;
int numProcs = 1;
if (this->Controller )
{
procid = this->Controller->GetLocalProcessId();
numProcs = this->Controller->GetNumberOfProcesses();
}
int doCommunicate = 1;
// If there is a composite dataset in the input, the request is
// coming from a vtkCompositeDataPipeline and interprocess communication
// is not necessary (simple datasets are not broken into pieces)
vtkCompositeDataSet* cds = vtkCompositeDataSet::SafeDownCast(
inInfo->Get(vtkCompositeDataSet::COMPOSITE_DATA_SET()));
if (cds)
{
doCommunicate = 0;
}
input->GetBounds(bds);
if (doCommunicate)
{
if ( procid )
{
// Satellite node
this->Controller->Send(bds, 6, 0, 792390);
}
else
{
int idx;
double tmp[6];
for (idx = 1; idx < numProcs; ++idx)
{
this->Controller->Receive(tmp, 6, idx, 792390);
if (tmp[0] < bds[0])
{
bds[0] = tmp[0];
}
if (tmp[1] > bds[1])
{
bds[1] = tmp[1];
}
if (tmp[2] < bds[2])
{
bds[2] = tmp[2];
}
if (tmp[3] > bds[3])
{
bds[3] = tmp[3];
}
if (tmp[4] < bds[4])
{
bds[4] = tmp[4];
}
if (tmp[5] > bds[5])
{
bds[5] = tmp[5];
}
}
}
}
if (!doCommunicate || procid == 0)
{
if (vtkMath::AreBoundsInitialized(bds))
{
// only output in process 0.
this->OutlineSource->SetBounds(bds);
this->OutlineSource->Update();
output->CopyStructure(this->OutlineSource->GetOutput());
}
}
return 1;
}
int vtkPOutlineFilter::RequestInformation(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **vtkNotUsed(inputVector),
vtkInformationVector *outputVector)
{
// get the info object
vtkInformation *outInfo = outputVector->GetInformationObject(0);
outInfo->Set(vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(),
-1);
return 1;
}
int vtkPOutlineFilter::FillInputPortInformation(int, vtkInformation *info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataSet");
return 1;
}
void vtkPOutlineFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Controller: " << this->Controller << endl;
}
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