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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkHierarchicalDataSetGeometryFilter.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 "vtkHierarchicalDataSetGeometryFilter.h"
#include "vtkAppendPolyData.h"
#include "vtkCompositeDataIterator.h"
#include "vtkCompositeDataPipeline.h"
#include "vtkDataSet.h"
#include "vtkGeometryFilter.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkHierarchicalDataSet.h"
#include "vtkObjectFactory.h"
vtkCxxRevisionMacro(vtkHierarchicalDataSetGeometryFilter, "$Revision: 1.4 $");
vtkStandardNewMacro(vtkHierarchicalDataSetGeometryFilter);
vtkHierarchicalDataSetGeometryFilter::vtkHierarchicalDataSetGeometryFilter()
{
}
vtkHierarchicalDataSetGeometryFilter::~vtkHierarchicalDataSetGeometryFilter()
{
}
int vtkHierarchicalDataSetGeometryFilter::FillInputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
// now add our info
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataObject");
info->Set(vtkCompositeDataPipeline::INPUT_REQUIRED_COMPOSITE_DATA_TYPE(),
"vtkHierarchicalDataSet");
return 1;
}
int vtkHierarchicalDataSetGeometryFilter::ProcessRequest(
vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
// generate the data
if(request->Has(vtkCompositeDataPipeline::REQUEST_DATA()))
{
int retVal = this->RequestCompositeData(request, inputVector, outputVector);
return retVal;
}
return this->Superclass::ProcessRequest(request, inputVector, outputVector);
}
int vtkHierarchicalDataSetGeometryFilter::RequestCompositeData(
vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
vtkHierarchicalDataSet *input = vtkHierarchicalDataSet::SafeDownCast(
inInfo->Get(vtkCompositeDataSet::COMPOSITE_DATA_SET()));
if (!input)
{
vtkErrorMacro("No input composite dataset provided.");
return 0;
}
vtkInformation* info = outputVector->GetInformationObject(0);
vtkPolyData *output = vtkPolyData::SafeDownCast(
info->Get(vtkDataObject::DATA_OBJECT()));
if (!output)
{
vtkErrorMacro("No output polydata provided.");
return 0;
}
vtkCompositeDataIterator* iter = input->NewIterator();
iter->GoToFirstItem();
vtkAppendPolyData* append = vtkAppendPolyData::New();
while (!iter->IsDoneWithTraversal())
{
vtkDataSet* ds = vtkDataSet::SafeDownCast(iter->GetCurrentDataObject());
if (ds)
{
vtkGeometryFilter* geom = vtkGeometryFilter::New();
geom->SetInput(ds);
geom->Update();
append->AddInput(geom->GetOutput());
geom->Delete();
}
iter->GoToNextItem();
}
iter->Delete();
append->Update();
output->ShallowCopy(append->GetOutput());
append->Delete();
return 1;
}
vtkExecutive* vtkHierarchicalDataSetGeometryFilter::CreateDefaultExecutive()
{
return vtkCompositeDataPipeline::New();
}
void vtkHierarchicalDataSetGeometryFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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