Panda3D
orthographicLens.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file orthographicLens.h
10 * @author mike
11 * @date 1999-02-18
12 */
13
14#ifndef ORTHOGRAPHICLENS_H
15#define ORTHOGRAPHICLENS_H
16
17#include "pandabase.h"
18
19#include "lens.h"
20
21
22/**
23 * An orthographic lens. Although this kind of lens is linear, like a
24 * PerspectiveLens, it doesn't respect field-of-view or focal length
25 * parameters, and adjusting these will have no effect. Instead, its field of
26 * view is controlled by adjusting the film_size; the orthographic lens
27 * represents a planar projection onto its imaginary film of the specified
28 * size, hanging in space.
29 */
30class EXPCL_PANDA_GOBJ OrthographicLens : public Lens {
31PUBLISHED:
32 INLINE OrthographicLens();
33
34public:
35 INLINE OrthographicLens(const OrthographicLens &copy);
36 INLINE void operator = (const OrthographicLens &copy);
37
38public:
39 virtual PT(Lens) make_copy() const;
40 virtual bool is_linear() const;
41 virtual bool is_orthographic() const;
42
43 virtual void write(std::ostream &out, int indent_level = 0) const;
44
45protected:
46 virtual bool do_extrude_depth(const CData *cdata, const LPoint3 &point2d,
47 LPoint3 &point3d) const;
48 virtual void do_compute_projection_mat(Lens::CData *lens_cdata);
49
50public:
51 static void register_with_read_factory();
52
53protected:
54 static TypedWritable *make_from_bam(const FactoryParams &params);
55
56public:
57 virtual TypeHandle get_type() const {
58 return get_class_type();
59 }
60 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
61 static TypeHandle get_class_type() {
62 return _type_handle;
63 }
64 static void init_type() {
65 Lens::init_type();
66 register_type(_type_handle, "OrthographicLens",
67 Lens::get_class_type());
68 }
69
70private:
71 static TypeHandle _type_handle;
72};
73
74#include "orthographicLens.I"
75
76#endif
An instance of this class is passed to the Factory when requesting it to do its business and construc...
Definition: factoryParams.h:36
A base class for any number of different kinds of lenses, linear and otherwise.
Definition: lens.h:41
An orthographic lens.
virtual bool is_orthographic() const
Returns true if the lens represents a orthographic projection (i.e.
virtual bool is_linear() const
Returns true if the lens represents a linear projection (e.g.
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
Base class for objects that can be written to and read from Bam files.
Definition: typedWritable.h:35
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22