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/*=========================================================================
Program: Image Guided Surgery Software Toolkit
Module: $RCSfile: igstkPerspectiveTransformXMLFileReader.cxx,v $
Language: C++
Date: $Date: 2009-01-30 20:49:54 $
Version: $Revision: 1.1 $
Copyright (c) ISC Insight Software Consortium. All rights reserved.
See IGSTKCopyright.txt or http://www.igstk.org/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 notices for more information.
=========================================================================*/
#include "igstkPerspectiveTransformXMLFileReader.h"
#include "igstkPerspectiveTransform.h"
namespace igstk
{
void
PerspectiveTransformXMLFileReader::ProcessTransformation()
throw (FileFormatException )
{
igstk::PerspectiveTransform::IntrinsicMatrixType K;
igstk::PerspectiveTransform::ExtrinsicMatrixType Rt;
std::istringstream instr;
instr.str( this->m_CurrentTagData );
instr>>K(0,0)>>K(0,1)>>K(0,2);
instr>>K(1,0)>>K(1,1)>>K(1,2);
instr>>K(2,0)>>K(2,1)>>K(2,2);
instr>>Rt(0,0)>>Rt(0,1)>>Rt(0,2)>>Rt(0,3);
instr>>Rt(1,0)>>Rt(1,1)>>Rt(1,2)>>Rt(1,3);
instr>>Rt(2,0)>>Rt(2,1)>>Rt(2,2)>>Rt(2,3);
//check that we got to the end of the stream, (assumes that the string
//m_CurrentTagData has no trailing white spaces)
if( !instr.eof() )
{
throw FileFormatException(
"Error in transformation data, possibly non numeric values" );
}
//check that we got all 12 values
if( instr.fail() )
{
throw FileFormatException( "Missing transformation data");
}
delete this->m_Transform;
PerspectiveTransform *perspectiveTransform = new PerspectiveTransform();
perspectiveTransform->SetTransform(
Rt, K,
this->m_EstimationError,
itk::NumericTraits< TimeStamp::TimePeriodType >::max() );
this->m_Transform = perspectiveTransform;
}
} //namespace
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