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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkSampleAlgorithmBase.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/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 __itkSampleAlgorithmBase_h
#define __itkSampleAlgorithmBase_h
#include <vnl/vnl_vector.h>
#include <vnl/vnl_matrix.h>
#include "itkMacro.h"
#include "itkObjectFactory.h"
#include "itkObject.h"
#include "itkMeasurementVectorTraits.h"
namespace itk {
namespace Statistics {
/** \class SampleAlgorithmBase
* \brief This class is a base class for algorithms that operate on Sample
* data. The class is templated over the SampleType, which it takes as
* input using the SetInputSample() method. Derived classes that operate
* or calculate statistics on this input sample data and can access it
* using the GetInputSample() method.
*/
template< class TInputSample >
class ITK_EXPORT SampleAlgorithmBase : public Object
{
public:
/**Standard class typedefs. */
typedef SampleAlgorithmBase Self;
typedef Object Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/**Standard Macros */
itkTypeMacro(SampleAlgorithmBase, Object);
itkNewMacro(Self);
/** Length of a measurement vector */
typedef unsigned int MeasurementVectorSizeType;
/** Sample typedefs alias */
typedef TInputSample InputSampleType;
typedef typename InputSampleType::MeasurementVectorType MeasurementVectorType;
/** Stores the sample pointer */
void SetInputSample( const TInputSample * sample )
{
if ( m_InputSample != sample )
{
m_InputSample = sample;
m_MeasurementVectorSize = m_InputSample->GetMeasurementVectorSize();
this->Modified();
}
}
/** Get Macro to get the length of a measurement vector. This is equal to
* the length of each measurement vector contained in the samples that are
* plugged in as input to this class. GetMeasurementVectorSize() will return
* zero until the SetInputSample() method has been called */
itkGetConstMacro( MeasurementVectorSize, MeasurementVectorSizeType );
itkSetMacro( MeasurementVectorSize, MeasurementVectorSizeType )
const TInputSample * GetInputSample() const
{ return m_InputSample.GetPointer(); }
/** dummy function that calls the GenerateData() function to generate
* output. It exists for future compatibility with ProcessObject
* without streaming */
void Update()
{ this->GenerateData(); }
protected:
SampleAlgorithmBase();
virtual ~SampleAlgorithmBase() {}
void PrintSelf(std::ostream& os, Indent indent) const;
/** Calculates the mean and save it */
virtual void GenerateData();
private:
/** Length of each measurement vector */
MeasurementVectorSizeType m_MeasurementVectorSize;
/** Target sample data pointer */
typename TInputSample::ConstPointer m_InputSample;
}; // end of class
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSampleAlgorithmBase.txx"
#endif
#endif
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