Conventions » History » Version 4
Simon Lacroix, 2018-04-01 15:55
1 | 1 | Simon Lacroix | h1. Conventions |
---|---|---|---|
2 | |||
3 | h2. Terminology |
||
4 | |||
5 | # A *pose* is the position of a given frame with respect to a reference frame. Whenever one writes or says the word "pose", one must say the "pose of which frame with respect to which frame". |
||
6 | # A *transform* is the 3D transformation from one frame to an other one. Whenever one writes or says the word "transform", one must say the "transform from which frame to which frame". |
||
7 | |||
8 | Note these two words are exactly the same concept, they denote the same data structure. They can be used indifferently, provided one use them according to the convention above. |
||
9 | |||
10 | h2. Definition of the various frames |
||
11 | 2 | Simon Lacroix | |
12 | 3 | Simon Lacroix | * The *Robot Body Frame* (aka the *RBF*) is a frame attached to the robot body. Its origin is the center of the robot, at the ground level when the robot lies on a flat ground. Its x axis points forward, its y axis points leftward, and z axis points upward |
13 | * World frame |
||
14 | * Site frame |
||
15 | * Mission frame |
||
16 | * Sensor Frame |
||
17 | 4 | Simon Lacroix | ** Camera |
18 | ** Stereovision |
||
19 | ** Lidar |