projectionhandler.h

#ifndef PROJECTIONHANDLER__H
#define PROJECTIONHANDLER__H

#include "gtransfo.h"
#include "map"

class Mapping;
class CcdImage;
class CcdImageList;


struct ProjectionHandler
{
  virtual const Gtransfo* Sky2TP(const Mapping* M, const CcdImage &C) const = 0;
};

class IdentityProjection : public ProjectionHandler
{
  GtransfoIdentity id;
 public:
  const Gtransfo* Sky2TP(const Mapping* M, const CcdImage &C) const
  { return &id;};

};

/* ! We arbitrarily chose that all chips from a same shoot have the same tangent point, but other choices can be made. */
class OneTPPerShoot : public ProjectionHandler
{
  typedef std::map<const unsigned, CountedRef<Gtransfo> > TransfoMap;
  TransfoMap tMap;

 public:
  OneTPPerShoot(const CcdImageList &L);

  const Gtransfo* Sky2TP(const Mapping* M, const CcdImage &C) const;

};







#endif