Panda3D
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fisheyeLens.h
00001 // Filename: fisheyeLens.h
00002 // Created by:  drose (12Dec01)
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 FISHEYELENS_H
00016 #define FISHEYELENS_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "lens.h"
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //       Class : FisheyeLens
00024 // Description : A fisheye lens.  This nonlinear lens introduces a
00025 //               spherical distortion to the image, which is minimal
00026 //               at small angles from the lens, and increases at
00027 //               larger angles from the lens.  The field of view may
00028 //               extend to 360 degrees.
00029 ////////////////////////////////////////////////////////////////////
00030 class EXPCL_PANDAFX FisheyeLens : public Lens {
00031 PUBLISHED:
00032   INLINE FisheyeLens();
00033 
00034 public:
00035   INLINE FisheyeLens(const FisheyeLens &copy);
00036   INLINE void operator = (const FisheyeLens &copy);
00037 
00038 public:
00039   virtual PT(Lens) make_copy() const;
00040 
00041 protected:
00042   virtual bool do_extrude(const Lens::CData *lens_cdata, const LPoint3 &point2d, 
00043                           LPoint3 &near_point, LPoint3 &far_point) const;
00044   virtual bool do_extrude_vec(const Lens::CData *lens_cdata, const LPoint3 &point2d, 
00045                               LVector3 &vec) const;
00046   virtual bool do_project(const Lens::CData *lens_cdata, 
00047                           const LPoint3 &point3d, LPoint3 &point2d) const;
00048 
00049   virtual PN_stdfloat fov_to_film(PN_stdfloat fov, PN_stdfloat focal_length, bool horiz) const;
00050   virtual PN_stdfloat fov_to_focal_length(PN_stdfloat fov, PN_stdfloat film_size, bool horiz) const;
00051   virtual PN_stdfloat film_to_fov(PN_stdfloat film_size, PN_stdfloat focal_length, bool horiz) const;
00052 
00053 public:
00054   virtual TypeHandle get_type() const {
00055     return get_class_type();
00056   }
00057   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00058   static TypeHandle get_class_type() {
00059     return _type_handle;
00060   }
00061   static void init_type() {
00062     Lens::init_type();
00063     register_type(_type_handle, "FisheyeLens",
00064                   Lens::get_class_type());
00065   }
00066 
00067 private:
00068   static TypeHandle _type_handle;
00069 };
00070 
00071 #include "fisheyeLens.I"
00072 
00073 #endif
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