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/*=========================================================================
Program: Visualization Toolkit
Module: vtkExtractArray.cxx
-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------
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 "vtkArrayData.h"
#include "vtkCommand.h"
#include "vtkExtractArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSmartPointer.h"
///////////////////////////////////////////////////////////////////////////////
// vtkExtractArray
vtkStandardNewMacro(vtkExtractArray);
vtkExtractArray::vtkExtractArray() :
Index(0)
{
this->SetNumberOfInputPorts(1);
this->SetNumberOfOutputPorts(1);
}
vtkExtractArray::~vtkExtractArray()
{
}
void vtkExtractArray::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Index: " << this->Index << endl;
}
int vtkExtractArray::FillInputPortInformation(int port, vtkInformation* info)
{
switch(port)
{
case 0:
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkArrayData");
return 1;
}
return 0;
}
int vtkExtractArray::RequestData(
vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
vtkArrayData* const input = vtkArrayData::GetData(inputVector[0]);
if(this->Index < 0 || this->Index >= input->GetNumberOfArrays())
{
vtkErrorMacro(<< "Array index " << this->Index << " out-of-range for vtkArrayData containing " << input->GetNumberOfArrays() << " arrays.");
return 0;
}
vtkArrayData* const output = vtkArrayData::GetData(outputVector);
output->ClearArrays();
output->AddArray(input->GetArray(this->Index));
return 1;
}
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