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/*=========================================================================
Program: Image Guided Surgery Software Toolkit
Module: $RCSfile: igstkPerspectiveTransformXMLFileReader.h,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.
=========================================================================*/
#ifndef __igstkPerspectiveTransformXMLFileReader_h
#define __igstkPerspectiveTransformXMLFileReader_h
#include "igstkTransformXMLFileReaderBase.h"
namespace igstk
{
/** \class PerspectiveTransformXMLFileReader
*
* \brief This class reads an xml file containing a perspective transformation.
*
* This class is used for reading an xml file containing a precomputed
* perspective transformation. The transformation is described by two matrices
* a 3x4 rigid transformation (camera's extrinsic parameters) and a 3x3
* perspective projection matrix (camera's intrinsic parameters), given up to
* a scale factor.
* The expected file format is:
@verbatim
<precomputed_transform>
<description>
C-arm calibration
</description>
<computation_date>
Thursday July 4 12:00:00 1776
</computation_date>
<transformation estimation_error="0.5">
alphaX s u0
0 alphaY v0
0 0 1
r11 r12 r13 t1
r21 r22 r23 t2
r31 r32 r33 t3
</transformation>
</precomputed_transform>
@endverbatim
*/
class PerspectiveTransformXMLFileReader : public TransformXMLFileReaderBase
{
public:
//standard typedefs
typedef PerspectiveTransformXMLFileReader Self;
typedef TransformXMLFileReaderBase Superclass;
typedef itk::SmartPointer<Self> Pointer;
//run-time type information (and related methods)
itkTypeMacro( PerspectiveTransformXMLFileReader, TransformXMLFileReaderBase );
//method for creation through the object factory
itkNewMacro( Self );
protected:
//this is the constructor that is called by the factory to
//create a new object
PerspectiveTransformXMLFileReader() : TransformXMLFileReaderBase() {}
/**
* This method extracts the transformation parameters from the string data
* which is maintained internally (m_CurrentTagData).
*/
virtual void ProcessTransformation() throw (FileFormatException );
virtual ~PerspectiveTransformXMLFileReader() {}
private:
PerspectiveTransformXMLFileReader(
const PerspectiveTransformXMLFileReader & other );
const PerspectiveTransformXMLFileReader & operator=(
const PerspectiveTransformXMLFileReader & right );
};
}
#endif //__igstkPerspectiveTransformXMLFileReader_h
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