cmtkUniformVolumeInterpolatorBase.h

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/*
//
//  Copyright 1997-2009 Torsten Rohlfing
//
//  Copyright 2004-2011 SRI International
//
//  This file is part of the Computational Morphometry Toolkit.
//
//  http://www.nitrc.org/projects/cmtk/
//
//  The Computational Morphometry Toolkit is free software: you can
//  redistribute it and/or modify it under the terms of the GNU General Public
//  License as published by the Free Software Foundation, either version 3 of
//  the License, or (at your option) any later version.
//
//  The Computational Morphometry Toolkit is distributed in the hope that it
//  will be useful, but WITHOUT ANY WARRANTY; without even the implied
//  warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License along
//  with the Computational Morphometry Toolkit.  If not, see
//  <http://www.gnu.org/licenses/>.
//
//  $Revision: 2750 $
//
//  $LastChangedDate: 2011-01-14 15:46:06 -0800 (Fri, 14 Jan 2011) $
//
//  $LastChangedBy: torstenrohlfing $
//
*/

#ifndef __cmtkUniformVolumeInterpolatorBase_h_included_
#define __cmtkUniformVolumeInterpolatorBase_h_included_

#include <cmtkconfig.h>

#include <System/cmtkSmartPtr.h>
#include <System/cmtkSmartConstPtr.h>

#include <Base/cmtkVector3D.h>
#include <Base/cmtkUniformVolume.h>

#include <vector>

namespace
cmtk
{

class UniformVolumeInterpolatorBase
{
public:
  typedef UniformVolumeInterpolatorBase Self;
  
  typedef SmartPointer<Self> SmartPtr;

  typedef SmartConstPointer<Self> SmartConstPtr;

  UniformVolumeInterpolatorBase( const UniformVolume& volume )
  {
    this->SetVolume( volume );
  }

  virtual ~UniformVolumeInterpolatorBase() {};

  virtual void SetVolume( const UniformVolume& volume  );
  
  virtual bool GetDataAt( const Vector3D& v , Types::DataItem& value  ) const = 0;

  virtual Types::DataItem GetDataDirect( const int* imageGridPoint , const Types::Coordinate* insidePixel  ) const = 0;

protected:
  std::vector<Types::DataItem> m_VolumeDataArray;

  DataGrid::IndexType m_VolumeDims;
  
  UniformVolume::CoordinateVectorType m_VolumeDeltas;

  UniformVolume::CoordinateVectorType m_VolumeOffset;

  int m_NextJ;

  int m_NextK;

  size_t GetOffsetFromIndex( const int i , const int j , const int k  ) const
  {
    return i + j * this->m_NextJ + k * this->m_NextK;
  }
};


} // namespace cmtk

#endif // #ifndef __cmtkUniformVolumeInterpolatorBase_h_included_