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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt 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 otb_GeoInterface_h
#define otb_GeoInterface_h
#include <itkFloatTypes.h>
#include <itkPoint.h>
#include "OTBIceExport.h"
namespace otb
{
class ImageKeywordlist;
/**
* @class This class is the abstract interface for actors which need
* geo-referenced methods.
*
* Use multiple inheritance to provide geo-referenced interface to
* specialized actors.
*
* Example: Derive otb::GlMyActor : public otb::GlActor, public
* otb::GeoInterface {};
*
* By default, single-prevision methods are implemented as conversion
* method from otb::GeoInterface::Point2f to
* otb::GeoInterface::Point2d. Derived otb::GlActor classes must
* implement double-prevision methods.
*/
class OTBIce_EXPORT GeoInterface
{
public:
/**
*/
typedef itk::Point< itk::SpacePrecisionType, 2 > Point2;
/**
* Double precision point-type.
*/
typedef itk::Point< double, 2 > Point2d;
/**
* Spacing-type based on ITK floating-point prevision.
*/
typedef itk::Vector< itk::SpacePrecisionType, 2 > Spacing2;
/**
* Transform given point from viewport coordinate-system to this
* actor coordinate-system.
*
* By default this method return false. It should be implemented in
* derived classes if needed.
*
* @param out The transformed point (in this actor coordinate-system).
* @param in The given point (in viewport coordinate-system).
* @param isPhysical Indicate physical coordates are desired.
*
* @return true if the operation has succeeded; false otherwise.
*/
virtual bool TransformFromViewport( Point2d & out,
const Point2d & in,
bool isPhysical = true ) const;
/**
* Transform given point from viewport coordinate-system to this
* actor coordinate-system.
*
* By default this method return false. It should be implemented in
* derived classes if needed.
*
* @param out The transformed point (in this actor coordinate-system).
* @param in The given point (in viewport coordinate-system).
* @param isPhysical Indicate physical coordates are desired.
*
* @return true if the operation has succeeded; false otherwise.
*/
virtual bool TransformToViewport( Point2d & out,
const Point2d & in,
bool isPhysical = true ) const;
/**
*/
virtual const Spacing2 & GetSpacing() const;
/**
*/
virtual std::string GetWkt() const;
/**
*/
virtual bool HasKwl() const;
/**
*/
virtual bool GetKwl( ImageKeywordlist & ) const;
protected:
GeoInterface();
virtual ~GeoInterface();
private:
}; // End class GeoInterface
} // End namespace otb
#endif // otb_GeoInterface_h
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