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WorldTranslate.H

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#ifndef WORLDTRANSLATE_H
#define WORLDTRANSLATE_H

// gluebase includes
#define OUTSIDE_GLUE_CORE
#include "mlib/points.H"
#include "mlib/math_translate.H"
#include <config/config.H>

class vjDrawManager;

//class WINDOW;
// Translate - subclass of MathTranslate that takes care of translating
//             between various point/vector types
class WorldTranslate : public MathTranslate 
{
 public:

  WorldTranslate() { };
  virtual ~WorldTranslate() {};

  // ROOM and WORLD

  virtual void setROOM_TO_WORLD(cWtransf &xf) { 
    _room2world = xf; 
    _world2room = _room2world.invert();
  }
  virtual void setWORLD_TO_ROOM(cWtransf &xf) { 
    _world2room = xf; 
    _room2world = _world2room.invert();
  }


  virtual void moveWorld(Wvec v);
  virtual void moveWorld(ROOMvec v);
  virtual void moveWorld(Wtransf m);

  virtual void moveRoom(Wvec v);
  virtual void moveRoom(ROOMvec v);
  virtual void moveRoom(Wtransf m);

  virtual const Wtransf &ROOM_TO_WORLD();
  virtual const Wtransf &WORLD_TO_ROOM();


  virtual Wpt  toWpt(cXYpt &xypt, cWpt &parallel_wpt);
  virtual Wpt  toWpt(cXYpt &xypt, double distance);
  virtual Wpt  toWpt(cXYpt &xypt);
  virtual Wvec toWvec(cXYpt &xypt);
  
  virtual XYpt toXYpt(cWpt &wpt);
  
  // View
  virtual void    view_size(int &width, int &height);
  virtual void    view_pixels(double &, NDCpt &);
  virtual double  VIEW_ASPECT();
  virtual Wtransf VIEW_NDC_TRANS();
  
 protected:

  Wtransf _room2world, _world2room;

  void nimp(const char *fnname) {
    if ( CONFIGval("VERBOSE_WORLD_TRANSLATE",1) )
      cerr << "WorldTranslate::" << fnname << " not implemented." << endl; 
  }

};

#endif

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