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eggJointData.I
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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 eggJointData.I
10 * @author drose
11 * @date 2001-02-23
12 */
13
14/**
15 *
16 */
17INLINE EggJointData *EggJointData::
18get_parent() const {
19 return _parent;
20}
21
22/**
23 *
24 */
25INLINE int EggJointData::
26get_num_children() const {
27 return _children.size();
28}
29
30/**
31 *
32 */
33INLINE EggJointData *EggJointData::
34get_child(int n) const {
35 nassertr(n >= 0 && n < (int)_children.size(), nullptr);
36 return _children[n];
37}
38
39/**
40 * Returns the first descendent joint found with the indicated name, or NULL
41 * if no joint has that name.
42 */
43INLINE EggJointData *EggJointData::
44 find_joint(const std::string &name) {
45 EggJointData *joint = find_joint_exact(name);
46 if (joint == nullptr) {
47 joint = find_joint_matches(name);
48 }
49 return joint;
50}
51
52
53/**
54 * Returns true if the joint knows its rest frame, false otherwise. In
55 * general, this will be true as long as the joint is included in at least one
56 * model file, or false if it appears only in animation files.
57 */
58INLINE bool EggJointData::
59 has_rest_frame() const {
60 return _has_rest_frame;
61}
62
63/**
64 * Returns true if the rest frames for different models differ in their
65 * initial value. This is not technically an error, but it is unusual enough
66 * to be suspicious.
67 */
68INLINE bool EggJointData::
69 rest_frames_differ() const {
70 return _rest_frames_differ;
71}
72
73/**
74 * Returns the rest frame of the joint. This is the matrix value that appears
75 * for the joint in each model file; it should be the same transform in each
76 * model.
77 */
78INLINE const LMatrix4d &EggJointData::
79 get_rest_frame() const {
80 nassertr(has_rest_frame(), LMatrix4d::ident_mat());
81 return _rest_frame;
82}
83
84/**
85 * Indicates an intention to change the parent of this joint to the indicated
86 * joint, or NULL to remove it from the hierarchy. The joint is not
87 * reparented immediately, but rather all of the joints are reparented at once
88 * when do_reparent() is called.
89 */
90INLINE void EggJointData::
91 reparent_to(EggJointData *new_parent) {
92 _new_parent = new_parent;
93}
EggJointData
This is one node of a hierarchy of EggJointData nodes, each of which represents a single joint of the...
Definition eggJointData.h:31
EggJointData::get_rest_frame
const LMatrix4d & get_rest_frame() const
Returns the rest frame of the joint.
Definition eggJointData.I:79
EggJointData::rest_frames_differ
bool rest_frames_differ() const
Returns true if the rest frames for different models differ in their initial value.
Definition eggJointData.I:69
EggJointData::find_joint
EggJointData * find_joint(const std::string &name)
Returns the first descendent joint found with the indicated name, or NULL if no joint has that name.
Definition eggJointData.I:44
EggJointData::has_rest_frame
bool has_rest_frame() const
Returns true if the joint knows its rest frame, false otherwise.
Definition eggJointData.I:59
EggJointData::reparent_to
void reparent_to(EggJointData *new_parent)
Indicates an intention to change the parent of this joint to the indicated joint, or NULL to remove i...
Definition eggJointData.I:91