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/*=========================================================================
Program: Visualization Toolkit
Module: vtkUnstructuredGridSource.cxx
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 "vtkUnstructuredGridSource.h"
#include "vtkInformation.h"
#include "vtkObjectFactory.h"
#include "vtkUnstructuredGrid.h"
//----------------------------------------------------------------------------
vtkUnstructuredGridSource::vtkUnstructuredGridSource()
{
// A source has no inputs by default.
this->SetNumberOfInputPorts(0);
this->vtkSource::SetNthOutput(0, vtkUnstructuredGrid::New());
// Releasing data for pipeline parallism.
// Filters will know it is empty.
this->Outputs[0]->ReleaseData();
this->Outputs[0]->Delete();
}
//----------------------------------------------------------------------------
vtkUnstructuredGrid *vtkUnstructuredGridSource::GetOutput()
{
if (this->NumberOfOutputs < 1)
{
return NULL;
}
return static_cast<vtkUnstructuredGrid *>(this->Outputs[0]);
}
//----------------------------------------------------------------------------
void vtkUnstructuredGridSource::SetOutput(vtkUnstructuredGrid *output)
{
this->vtkSource::SetNthOutput(0, output);
}
//----------------------------------------------------------------------------
void vtkUnstructuredGridSource::ComputeInputUpdateExtents(vtkDataObject *data)
{
int piece, numPieces, ghostLevel;
vtkUnstructuredGrid *output = static_cast<vtkUnstructuredGrid *>(data);
int idx;
output->GetUpdateExtent(piece, numPieces, ghostLevel);
// make sure piece is valid
if (piece < 0 || piece >= numPieces)
{
return;
}
// just copy the Update extent as default behavior.
for (idx = 0; idx < this->NumberOfInputs; ++idx)
{
if (this->Inputs[idx])
{
this->Inputs[idx]->SetUpdateExtent(piece, numPieces, ghostLevel);
}
}
}
vtkUnstructuredGrid *vtkUnstructuredGridSource::GetOutput(int idx)
{
return static_cast<vtkUnstructuredGrid *>( this->vtkSource::GetOutput(idx) );
}
//----------------------------------------------------------------------------
int vtkUnstructuredGridSource::FillOutputPortInformation(int port,
vtkInformation* info)
{
if(!this->Superclass::FillOutputPortInformation(port, info))
{
return 0;
}
info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkUnstructuredGrid");
return 1;
}
//----------------------------------------------------------------------------
void vtkUnstructuredGridSource::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
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