Panda3D

perspectiveLens.h

00001 // Filename: perspectiveLens.h
00002 // Created by:  drose (18Feb99)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef PERSPECTIVELENS_H
00016 #define PERSPECTIVELENS_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "lens.h"
00021 
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : PerspectiveLens
00025 // Description : A perspective-type lens: a normal camera.
00026 ////////////////////////////////////////////////////////////////////
00027 class EXPCL_PANDA_GOBJ PerspectiveLens : public Lens {
00028 PUBLISHED:
00029   INLINE PerspectiveLens();
00030   INLINE PerspectiveLens(PN_stdfloat hfov, PN_stdfloat vfov);
00031 
00032 public:
00033   INLINE PerspectiveLens(const PerspectiveLens &copy);
00034   INLINE void operator = (const PerspectiveLens &copy);
00035 
00036 public:
00037   virtual PT(Lens) make_copy() const;
00038   virtual bool is_linear() const;
00039   virtual bool is_perspective() const;
00040 
00041 protected:
00042   virtual void do_compute_projection_mat(Lens::CData *lens_cdata);
00043 
00044   virtual PN_stdfloat fov_to_film(PN_stdfloat fov, PN_stdfloat focal_length, bool horiz) const;
00045   virtual PN_stdfloat fov_to_focal_length(PN_stdfloat fov, PN_stdfloat film_size, bool horiz) const;
00046   virtual PN_stdfloat film_to_fov(PN_stdfloat film_size, PN_stdfloat focal_length, bool horiz) const;
00047 
00048 public:
00049   static void register_with_read_factory();
00050 
00051 protected:
00052   static TypedWritable *make_from_bam(const FactoryParams &params);
00053 
00054 public:
00055   virtual TypeHandle get_type() const {
00056     return get_class_type();
00057   }
00058   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00059   static TypeHandle get_class_type() {
00060     return _type_handle;
00061   }
00062   static void init_type() {
00063     Lens::init_type();
00064     register_type(_type_handle, "PerspectiveLens",
00065                   Lens::get_class_type());
00066   }
00067 
00068 private:
00069   static TypeHandle _type_handle;
00070 };
00071 
00072 #include "perspectiveLens.I"
00073 
00074 #endif
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