Panda3D
eggCompositePrimitive.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 eggCompositePrimitive.h
10 * @author drose
11 * @date 2005-03-13
12 */
13
14#ifndef EGGCOMPOSITEPRIMITIVE_H
15#define EGGCOMPOSITEPRIMITIVE_H
16
17#include "pandabase.h"
18
19#include "eggPrimitive.h"
20
21/**
22 * The base class for primitives such as triangle strips and triangle fans,
23 * which include several component triangles, each of which might have its own
24 * color and/or normal.
25 */
26class EXPCL_PANDA_EGG EggCompositePrimitive : public EggPrimitive {
27PUBLISHED:
28 INLINE explicit EggCompositePrimitive(const std::string &name = "");
30 INLINE EggCompositePrimitive &operator = (const EggCompositePrimitive &copy);
31 virtual ~EggCompositePrimitive();
32
33 virtual Shading get_shading() const;
34
35 INLINE size_t get_num_components() const;
36 INLINE const EggAttributes *get_component(size_t i) const;
37 INLINE EggAttributes *get_component(size_t i);
38 MAKE_SEQ(get_components, get_num_components, get_component);
39 INLINE void set_component(size_t i, const EggAttributes *attrib);
40
41 MAKE_SEQ_PROPERTY(components, get_num_components, get_component, set_component);
42
43 INLINE bool triangulate_into(EggGroupNode *container) const;
44 PT(EggCompositePrimitive) triangulate_in_place();
45
46 virtual void unify_attributes(Shading shading);
47 virtual void apply_last_attribute();
48 virtual void apply_first_attribute();
49 virtual void post_apply_flat_attribute();
50 virtual bool cleanup();
51
52protected:
53 virtual int get_num_lead_vertices() const=0;
54 virtual void prepare_add_vertex(EggVertex *vertex, int i, int n);
55 virtual void prepare_remove_vertex(EggVertex *vertex, int i, int n);
56
57 virtual bool do_triangulate(EggGroupNode *container) const;
58
59 void write_body(std::ostream &out, int indent_level) const;
60
61private:
63 Components _components;
64
65public:
66
67 static TypeHandle get_class_type() {
68 return _type_handle;
69 }
70 static void init_type() {
71 EggPrimitive::init_type();
72 register_type(_type_handle, "EggCompositePrimitive",
73 EggPrimitive::get_class_type());
74 }
75 virtual TypeHandle get_type() const {
76 return get_class_type();
77 }
78 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
79
80private:
81 static TypeHandle _type_handle;
82
83};
84
86
87#endif
The set of attributes that may be applied to vertices as well as polygons, such as surface normal and...
Definition: eggAttributes.h:33
The base class for primitives such as triangle strips and triangle fans, which include several compon...
A base class for nodes in the hierarchy that are not leaf nodes.
Definition: eggGroupNode.h:46
A base class for any of a number of kinds of geometry primitives: polygons, point lights,...
Definition: eggPrimitive.h:49
virtual void unify_attributes(Shading shading)
If the shading property is S_per_vertex, ensures that all vertices have a normal and a color,...
get_shading
Returns the shading properties apparent on this particular primitive.
Definition: eggPrimitive.h:111
virtual void apply_first_attribute()
Sets the first vertex of the triangle (or each component) to the primitive normal and/or color,...
virtual void post_apply_flat_attribute()
Intended as a followup to apply_last_attribute(), this also sets an attribute on the first vertices o...
virtual void apply_last_attribute()
Sets the last vertex of the triangle (or each component) to the primitive normal and/or color,...
virtual bool cleanup()
Cleans up modeling errors in whatever context this makes sense.
Any one-, two-, three-, or four-component vertex, possibly with attributes such as a normal.
Definition: eggVertex.h:39
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(),...
Definition: register_type.I:22