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-rw-r--r--docs/user_guide/aruco_marker_pipeline/aoi_3d_description.md18
1 files changed, 9 insertions, 9 deletions
diff --git a/docs/user_guide/aruco_marker_pipeline/aoi_3d_description.md b/docs/user_guide/aruco_marker_pipeline/aoi_3d_description.md
index e8342c7..46422b8 100644
--- a/docs/user_guide/aruco_marker_pipeline/aoi_3d_description.md
+++ b/docs/user_guide/aruco_marker_pipeline/aoi_3d_description.md
@@ -1,17 +1,17 @@
Describe 3D AOI
===============
-Now [scene pose is estimated](aruco_marker_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.
+Now that the [scene pose is estimated](aruco_marker_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.
+In the example scene, the two screens—the control panel and the window—are considered to be 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:
+All AOI need to be described from the same origin as markers on 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.
+* +Z is pointing backward.
!!! warning
All AOI spatial values must be given in **centimeters**.
@@ -48,15 +48,15 @@ v -35.850000 35.000000 -15.000000
f 13 14 16 15 17
```
-Here are common OBJ file features needed to describe AOI:
+Here are some 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.
+* Object line (starting with the *o* key) indicates AOI name.
+* Vertice line (starting with the *v* key) indicates AOI vertices.
+* Face line (starting with the *f* key) links vertices together.
### Edit JSON file description
-JSON file format allows to describe AOI vertices.
+The JSON file format allows for the description of AOI vertices.
``` json
{