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-Describe 3D AOI
-===============
-
-Now [scene pose is estimated](aruco_markers_description.md) thanks to ArUco markers description, [areas of interest (AOI)](../../argaze.md/#argaze.AreaOfInterest.AOIFeatures.AreaOfInterest) need to be described into the same 3D referential.
-
-In the example scene, the two screens, the control panel and the window are considered as areas of interest.
-
-![3D AOI description](../../img/aoi_3d_description.png)
-
-All AOI need to be described from same origin than markers in a [right-handed 3D axis](https://robotacademy.net.au/lesson/right-handed-3d-coordinate-frame/) where:
-
-* +X is pointing to the right,
-* +Y is pointing to the top,
-* +Z is pointing to the backward.
-
-!!! warning
- All AOI spatial values must be given in **centimeters**.
-
-### Edit OBJ file description
-
-OBJ file format could be exported from most 3D editors.
-
-``` obj
-o Left_Screen
-v 0.000000 -0.000000 -0.000000
-v 15.000000 -0.000000 -0.000000
-v 0.000000 18.963333 -6.355470
-v 15.000000 18.963333 -6.355470
-f 1 2 4 3
-o Right_Screen
-v 20.000000 0.000000 -0.000000
-v 35.000000 0.000000 -0.000000
-v 20.000000 18.963337 -6.355472
-v 35.000000 18.963337 -6.355472
-f 5 6 8 7
-o Control_Panel
-v 49.500000 30.000000 18.333333
-v 55.500000 30.000000 18.333333
-v 49.500000 38.000000 18.333333
-v 55.500000 38.000000 18.333333
-f 9 10 12 11
-o Window
-v -57.800000 5.500000 -33.500000
-v 46.000000 15.500000 -35.000000
-v 1.500000 53.000000 -1.000000
-v 50.200000 61.000000 6.000000
-v -35.850000 35.000000 -15.000000
-f 13 14 16 15 17
-```
-
-Here are common OBJ file features needed to describe AOI:
-
-* Object lines (starting with *o* key) indicate AOI name.
-* Vertice lines (starting with *v* key) indicate AOI vertices.
-* Face (starting with *f* key) link vertices together.
-
-### Edit JSON file description
-
-JSON file format allows to describe AOI vertices.
-
-``` json
-{
- "Left_Screen": [[0, 0, 0], [15, 0, 0], [0, 18.963333, -6.355470], [15, 18.963333, -6.355470]],
- "Right_Screen": [[20, 0, 0], [35, 0, 0], [20, 18.963337, -6.355472], [35, 18.963337, -6.355472]],
- "Control_Panel": [[49.5, 30, 18.333333], [55.5, 30, 18.333333], [49.5, 38, 18.333333], [55.5, 38, 18.333333]],
- "Window": [[-57.8, 5.5, -33.5], [46, 15.5, -35], [1.5, 53, -1], [50.2, 61, 6], [-35.85, 35, -15]]
-}
-```