home.md

@@ -65,9 +65,28 @@ Some operations are applied to the selected component(s). In these case, the con
 
 An axis is edited through 3 successive phases :
 
-1. **Definition :** define the type, direction, position of the axis
-2. **Calibration :** define the median value (*ie* the zero value) and the min/max limit values
-3. **Link :** link the axis with the corresponding Nomad controller
+1. **Definition :** Define the type, direction, position of the axis.
+2. **Calibration :** Define the median value (*ie* the zero value) and the min/max limit values.
+3. **Link :** Link the axis with the corresponding Nomad controller.
+
+If the hierarchy of the components does not suit the axes, it must be recreated. Then we select a set of components that will move "together". See the next paragraph on the edition of components.
+
+Note that for the edition, a component must be selected.
+
+#### Edit an axis
+
+1. Select a component, then the axis to be edited is the one of the component.
+2. Edit > Axis > Modify Axis
+3. Set the type. If rotation is selected, give a value to y (e.g. 1). Then the axis can move with mouse. Type *enter* to apply the new value.
+4. The rotation direction has to be checked and Reverse axis may be applied.
+5. The center of the axis must be set. It can be automatically set to the center of the bounding box. A violet vector appears and can be moved.
+Note: When the position of the camera is moving, the position of the axis does not move visually but really moves.
+Note: If a translation is selected the vector is yellow.
+6. Edit > Axis > Calibrate Axis
+7. Set median value, then the position becomes 0. Some limits can be set (optional).
+8. Edit > Axis > Link Axis
+9. Select an axis.
+Note: The actual position is read once the window is open.
 
 ### Configurations