transformation.h

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#ifndef SOMAIO_TRANSFORMATION_TRANSFORMATION_H
#define SOMAIO_TRANSFORMATION_TRANSFORMATION_H
/*
 *  These classes used to be in aimsdata, but they are used in Transformation
 *  classes, which are needed in IO, so they have been moved to soma-io
 *  in AIMS 4.7.
 */

#include <stdexcept>

#include <soma-io/vector/vector.h>
#include <cartobase/smart/rcptr.h>

namespace soma
{

  class Transformation : public virtual carto::RCObject
  {
  public:
    virtual ~Transformation();

    virtual bool isIdentity() const
    {
      return false;
    }

  protected:
    Transformation() {}
  };


  class Transformation3d : public Transformation
  {
  public:
    virtual ~Transformation3d();

    Point3dd transform( double x, double y, double z ) const;
    Point3dd transform( const Point3dd & pos ) const;
    Point3df transform( const Point3df & dir ) const;
    Point3df transform( float x, float y, float z ) const;
    Point3d transform( const Point3d & p ) const;

    virtual bool invertible() const {
      return false;
    };
    virtual std::unique_ptr<Transformation3d> getInverse() const {
      throw std::logic_error("not implemented");
    };

  protected:
    Transformation3d() {}

    virtual Point3dd transformDouble( double x, double y, double z ) const = 0;
    virtual Point3dd transformPoint3dd( const Point3dd & pos ) const;
    virtual Point3df transformPoint3df( const Point3df & dir ) const;
    virtual Point3d transformPoint3d( const Point3d & p ) const;
    virtual Point3df transformFloat( float x, float y, float z ) const;
  };


  // --

  inline Point3dd
  Transformation3d::transform( double x, double y, double z ) const
  {
    return transformDouble( x, y, z );
  }


  inline Point3df
  Transformation3d::transform( float x, float y, float z ) const
  {
    return transformFloat( x, y, z );
  }


  inline Point3df Transformation3d::transform( const Point3df & pos ) const
  {
    return transformPoint3df( pos );
  }


  inline Point3dd
  Transformation3d::transform( const Point3dd & pos ) const
  {
    return transformPoint3dd( pos );
  }


  inline Point3d
  Transformation3d::transform( const Point3d & pos ) const
  {
    return transformPoint3d( pos );
  }


  inline Point3df
  Transformation3d::transformPoint3df( const Point3df & pos ) const
  {
    Point3dd transformed = transform( (double) pos[0], (double) pos[1],
                                      (double) pos[2] );
    return Point3df( (float) transformed[0], (float) transformed[1],
                     (float) transformed[2] );
  }


  inline Point3dd
  Transformation3d::transformPoint3dd( const Point3dd & pos ) const
  {
    return transform( pos[0], pos[1], pos[2] );
  }


  inline Point3df
  Transformation3d::transformFloat( float x, float y, float z ) const
  {
    Point3dd transformed = transform( (double) x, (double) y, (double) z );
    return Point3df( (float) transformed[0], (float) transformed[1],
                     (float) transformed[2] );
  }


  inline Point3d Transformation3d::transformPoint3d( const Point3d & p ) const
  {
    Point3dd transformed = transform( (double) p[0], (double) p[1],
                                      (double) p[2] );
    return Point3d( (int16_t) rint( transformed[0] ),
                    (int16_t) rint( transformed[1] ),
                    (int16_t) rint( transformed[2] ) );
  }

}

#endif