Panda3D

orthographicLens.h

00001 // Filename: orthographicLens.h
00002 // Created by:  mike (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 ORTHOGRAPHICLENS_H
00016 #define ORTHOGRAPHICLENS_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "lens.h"
00021 
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : OrthographicLens
00025 // Description : An orthographic lens.  Although this kind of lens is
00026 //               linear, like a PerspectiveLens, it doesn't respect
00027 //               field-of-view or focal length parameters, and
00028 //               adjusting these will have no effect.  Instead, its
00029 //               field of view is controlled by adjusting the
00030 //               film_size; the orthographic lens represents a planar
00031 //               projection onto its imaginary film of the specified
00032 //               size, hanging in space.
00033 ////////////////////////////////////////////////////////////////////
00034 class EXPCL_PANDA_GOBJ OrthographicLens : public Lens {
00035 PUBLISHED:
00036   INLINE OrthographicLens();
00037 
00038 public:
00039   INLINE OrthographicLens(const OrthographicLens &copy);
00040   INLINE void operator = (const OrthographicLens &copy);
00041 
00042 public:
00043   virtual PT(Lens) make_copy() const;
00044   virtual bool is_linear() const;
00045   virtual bool is_orthographic() const;
00046 
00047   virtual void write(ostream &out, int indent_level = 0) const;
00048 
00049 protected:
00050   virtual void do_compute_projection_mat(Lens::CData *lens_cdata);
00051 
00052 public:
00053   static void register_with_read_factory();
00054 
00055 protected:
00056   static TypedWritable *make_from_bam(const FactoryParams &params);
00057 
00058 public:
00059   virtual TypeHandle get_type() const {
00060     return get_class_type();
00061   }
00062   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00063   static TypeHandle get_class_type() {
00064     return _type_handle;
00065   }
00066   static void init_type() {
00067     Lens::init_type();
00068     register_type(_type_handle, "OrthographicLens",
00069                   Lens::get_class_type());
00070   }
00071 
00072 private:
00073   static TypeHandle _type_handle;
00074 };
00075 
00076 #include "orthographicLens.I"
00077 
00078 #endif
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