Panda3D
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eggPolygon.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 eggPolygon.h
10 * @author drose
11 * @date 1999-01-16
12 */
13
14#ifndef EGGPOLYGON_H
15#define EGGPOLYGON_H
16
17#include "pandabase.h"
18
19#include "eggPrimitive.h"
20
21/**
22 * A single polygon.
23 */
24class EXPCL_PANDA_EGG EggPolygon : public EggPrimitive {
25PUBLISHED:
26 INLINE explicit EggPolygon(const std::string &name = "");
27 INLINE EggPolygon(const EggPolygon &copy);
28 INLINE EggPolygon &operator = (const EggPolygon &copy);
29
30 virtual EggPolygon *make_copy() const override;
31
32 virtual bool cleanup() override;
33
34 bool calculate_normal(LNormald &result, CoordinateSystem cs = CS_default) const;
35 bool is_planar() const;
36
37 INLINE bool recompute_polygon_normal(CoordinateSystem cs = CS_default);
38
39 INLINE bool triangulate_into(EggGroupNode *container, bool convex_also) const;
40 PT(EggPolygon) triangulate_in_place(bool convex_also);
41
42 virtual void write(std::ostream &out, int indent_level) const override;
43
44private:
45 bool decomp_concave(EggGroupNode *container, int asum, int x, int y) const;
46 bool triangulate_poly(EggGroupNode *container, bool convex_also);
47
48public:
49
50 static TypeHandle get_class_type() {
51 return _type_handle;
52 }
53 static void init_type() {
54 EggPrimitive::init_type();
55 register_type(_type_handle, "EggPolygon",
56 EggPrimitive::get_class_type());
57 }
58 virtual TypeHandle get_type() const override {
59 return get_class_type();
60 }
61 virtual TypeHandle force_init_type() override {
62 init_type();
63 return get_class_type();
64 }
65
66private:
67 static TypeHandle _type_handle;
68
69};
70
71#include "eggPolygon.I"
72
73#endif
A base class for nodes in the hierarchy that are not leaf nodes.
A single polygon.
Definition eggPolygon.h:24
A base class for any of a number of kinds of geometry primitives: polygons, point lights,...
virtual bool cleanup()
Cleans up modeling errors in whatever context this makes sense.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
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(),...