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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageToStructuredGrid.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 "vtkImageToStructuredGrid.h"
#include "vtkObjectFactory.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkDataObject.h"
#include "vtkImageData.h"
#include "vtkPoints.h"
#include "vtkStructuredGrid.h"
#include "vtkPointData.h"
#include "vtkCellData.h"
#include <cassert>
//
// Standard methods
//
vtkStandardNewMacro(vtkImageToStructuredGrid)
vtkImageToStructuredGrid::vtkImageToStructuredGrid()
{
}
//------------------------------------------------------------------------------
vtkImageToStructuredGrid::~vtkImageToStructuredGrid()
{
}
//------------------------------------------------------------------------------
void vtkImageToStructuredGrid::PrintSelf( std::ostream &oss,
vtkIndent indent )
{
this->Superclass::PrintSelf( oss, indent );
}
//------------------------------------------------------------------------------
int vtkImageToStructuredGrid::FillInputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(),"vtkImageData");
return 1;
}
//------------------------------------------------------------------------------
int vtkImageToStructuredGrid::FillOutputPortInformation(
int vtkNotUsed(port), vtkInformation* info )
{
info->Set(vtkDataObject::DATA_TYPE_NAME(),"vtkStructuredGrid");
return 1;
}
//------------------------------------------------------------------------------
int vtkImageToStructuredGrid::RequestData(
vtkInformation* vtkNotUsed(request),
vtkInformationVector** inputVector,
vtkInformationVector* outputVector )
{
vtkInformation* inInfo = inputVector[0]->GetInformationObject( 0 );
vtkInformation* outInfo = outputVector->GetInformationObject( 0 );
assert( inInfo != NULL );
assert( outInfo != NULL );
vtkImageData* img = vtkImageData::SafeDownCast(
inInfo->Get(vtkImageData::DATA_OBJECT() ) );
assert( img != NULL );
vtkStructuredGrid* grid = vtkStructuredGrid::SafeDownCast(
outInfo->Get( vtkStructuredGrid::DATA_OBJECT() ) );
assert( grid != NULL );
int dims[3];
img->GetDimensions( dims );
vtkPoints *gridPoints = vtkPoints::New();
assert( gridPoints != NULL );
gridPoints->SetDataTypeToDouble();
gridPoints->SetNumberOfPoints( img->GetNumberOfPoints() );
double pnt[3];
for( int i=0; i < img->GetNumberOfPoints(); ++i )
{
img->GetPoint( i, pnt );
gridPoints->SetPoint(i,pnt);
}
grid->SetDimensions(dims);
grid->SetPoints( gridPoints );
gridPoints->Delete();
this->CopyPointData( img, grid );
this->CopyCellData( img, grid );
return 1;
}
//------------------------------------------------------------------------------
void vtkImageToStructuredGrid::CopyPointData(
vtkImageData* img, vtkStructuredGrid* sgrid)
{
assert( img != NULL );
assert( sgrid != NULL );
if( img->GetPointData()->GetNumberOfArrays() == 0 )
return;
for( int i=0; i < img->GetPointData()->GetNumberOfArrays(); ++i)
{
vtkDataArray* myArray = img->GetPointData()->GetArray( i );
sgrid->GetPointData()->AddArray( myArray );
} // END for all node arrays
}
//------------------------------------------------------------------------------
void vtkImageToStructuredGrid::CopyCellData(
vtkImageData* img, vtkStructuredGrid* sgrid )
{
assert( img != NULL );
assert( sgrid != NULL );
if( img->GetCellData()->GetNumberOfArrays() == 0)
return;
for( int i=0; i < img->GetCellData()->GetNumberOfArrays(); ++i)
{
vtkDataArray* myArray = img->GetCellData()->GetArray( i );
sgrid->GetCellData()->AddArray( myArray );
} // END for all cell arrays
}
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