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/*=========================================================================
Program: Visualization Toolkit
Module: vtkDataSetGhostGenerator.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 "vtkDataSetGhostGenerator.h"
#include "vtkDataObject.h"
#include "vtkMultiBlockDataSet.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkIndent.h"
#include <cassert>
vtkDataSetGhostGenerator::vtkDataSetGhostGenerator()
{
this->NumberOfGhostLayers = 0;
this->SetNumberOfInputPorts(1);
this->SetNumberOfOutputPorts(1);
}
//------------------------------------------------------------------------------
vtkDataSetGhostGenerator::~vtkDataSetGhostGenerator()
{
}
//------------------------------------------------------------------------------
void vtkDataSetGhostGenerator::PrintSelf(ostream& os, vtkIndent indent )
{
this->Superclass::PrintSelf( os, indent );
os << "NumberOfGhostLayers: " << this->NumberOfGhostLayers << std::endl;
}
//------------------------------------------------------------------------------
int vtkDataSetGhostGenerator::FillInputPortInformation(
int vtkNotUsed(port), vtkInformation *info )
{
assert( "pre: information object is NULL!" && (info != NULL) );
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(),"vtkMultiBlockDataSet");
return 1;
}
//------------------------------------------------------------------------------
int vtkDataSetGhostGenerator::FillOutputPortInformation(
int vtkNotUsed(port), vtkInformation *info )
{
assert( "pre: information object is NULL!" && (info != NULL) );
info->Set(vtkDataObject::DATA_TYPE_NAME(),"vtkMultiBlockDataSet");
return 1;
}
//------------------------------------------------------------------------------
int vtkDataSetGhostGenerator::RequestData(
vtkInformation* vtkNotUsed(rqst), vtkInformationVector **inputVector,
vtkInformationVector* outputVector )
{
// STEP 0: Get input object
vtkInformation *input = inputVector[0]->GetInformationObject( 0 );
assert( "pre: Null input object!" && (input != NULL) );
vtkMultiBlockDataSet *inputMultiBlock=
vtkMultiBlockDataSet::SafeDownCast(
input->Get(vtkDataObject::DATA_OBJECT() ) );
assert( "pre: Input multi-block object is NULL" && (inputMultiBlock != NULL) );
// STEP 1: Get output object
vtkInformation *output = outputVector->GetInformationObject( 0 );
assert( "pre: Null output object!" && (output != NULL) );
vtkMultiBlockDataSet *outputMultiBlock =
vtkMultiBlockDataSet::SafeDownCast(
output->Get(vtkDataObject::DATA_OBJECT() ) );
assert( "pre: Outpu multi-block object is NULL" && (outputMultiBlock != NULL));
// STEP 2: Generate ghost layers
if( this->NumberOfGhostLayers == 0 )
{
// Shallow copy the input object
outputMultiBlock->ShallowCopy( inputMultiBlock );
}
else
{
// Create requested ghost layers
this->GenerateGhostLayers( inputMultiBlock, outputMultiBlock );
}
return 1;
}
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