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vtkMergeDataObjectFilter.cxx
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vtkMergeDataObjectFilter.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkMergeDataObjectFilter.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 "vtkMergeDataObjectFilter.h"
#include "vtkCellData.h"
#include "vtkDataArray.h"
#include "vtkDataSet.h"
#include "vtkExecutive.h"
#include "vtkFieldData.h"
#include "vtkFieldDataToAttributeDataFilter.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
vtkStandardNewMacro(vtkMergeDataObjectFilter);
//----------------------------------------------------------------------------
// Create object with no input or output.
vtkMergeDataObjectFilter::vtkMergeDataObjectFilter()
{
this->OutputField = VTK_DATA_OBJECT_FIELD;
this->SetNumberOfInputPorts(2);
}
//----------------------------------------------------------------------------
vtkMergeDataObjectFilter::~vtkMergeDataObjectFilter()
{
}
//----------------------------------------------------------------------------
// Specify a data object at a specified table location.
void vtkMergeDataObjectFilter::SetDataObjectInputData(vtkDataObject *d)
{
this->SetInputData(1, d);
}
//----------------------------------------------------------------------------
// Get a pointer to a data object at a specified table location.
vtkDataObject *vtkMergeDataObjectFilter::GetDataObject()
{
if (this->GetNumberOfInputConnections(1) < 1)
{
return NULL;
}
return this->GetExecutive()->GetInputData(1, 0);
}
//----------------------------------------------------------------------------
// Merge it all together
int vtkMergeDataObjectFilter::RequestData(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
vtkInformation *dataObjectInfo = 0;
if (this->GetNumberOfInputConnections(1) > 0)
{
dataObjectInfo = inputVector[1]->GetInformationObject(0);
}
// get the input and output
vtkDataSet *input = vtkDataSet::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkDataSet *output = vtkDataSet::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkDataObject *dataObject=0;
if (dataObjectInfo)
{
dataObject = dataObjectInfo->Get(vtkDataObject::DATA_OBJECT());
}
vtkFieldData *fd;
vtkDebugMacro(<<"Merging dataset and data object");
if (!dataObject)
{
vtkErrorMacro(<< "Data Object's Field Data is NULL.");
return 1;
}
fd=dataObject->GetFieldData();
// First, copy the input to the output as a starting point
output->CopyStructure( input );
if ( this->OutputField == VTK_CELL_DATA_FIELD )
{
int ncells=fd->GetNumberOfTuples();
if ( ncells != input->GetNumberOfCells() )
{
vtkErrorMacro(<<"Field data size incompatible with number of cells");
return 1;
}
for(int i=0; i<fd->GetNumberOfArrays(); i++)
{
output->GetCellData()->AddArray(fd->GetArray(i));
}
}
else if ( this->OutputField == VTK_POINT_DATA_FIELD )
{
int npts=fd->GetNumberOfTuples();
if ( npts != input->GetNumberOfPoints() )
{
vtkErrorMacro(<<"Field data size incompatible with number of points");
return 1;
}
for(int i=0; i<fd->GetNumberOfArrays(); i++)
{
output->GetPointData()->AddArray(fd->GetArray(i));
}
}
return 1;
}
//----------------------------------------------------------------------------
void vtkMergeDataObjectFilter::SetOutputFieldToDataObjectField()
{
this->SetOutputField(VTK_DATA_OBJECT_FIELD);
}
//----------------------------------------------------------------------------
void vtkMergeDataObjectFilter::SetOutputFieldToPointDataField()
{
this->SetOutputField(VTK_POINT_DATA_FIELD);
}
//----------------------------------------------------------------------------
void vtkMergeDataObjectFilter::SetOutputFieldToCellDataField()
{
this->SetOutputField(VTK_CELL_DATA_FIELD);
}
//----------------------------------------------------------------------------
int vtkMergeDataObjectFilter::FillInputPortInformation(int port,
vtkInformation *info)
{
if (port == 0)
{
return this->Superclass::FillInputPortInformation(port, info);
}
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataObject");
info->Set(vtkAlgorithm::INPUT_IS_OPTIONAL(), 1);
return 1;
}
//----------------------------------------------------------------------------
void vtkMergeDataObjectFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Output Field: ";
if ( this->OutputField == VTK_DATA_OBJECT_FIELD )
{
os << "DataObjectField\n";
}
else if ( this->OutputField == VTK_POINT_DATA_FIELD )
{
os << "PointDataField\n";
}
else //if ( this->OutputField == VTK_CELL_DATA_FIELD )
{
os << "CellDataField\n";
}
}