documentation/tutorial.md

@@ -125,21 +125,6 @@ For each component (Pole, Purlin, Rafter, Diagonal), you can define its shape an
   - For **Cylinder**: Use `*Radius`.
   - **Length**: Defined by `*Length` (e.g., `PoleLength`).
 
-> **Note**: The `*Side` parameter is used if the base is `Square`, while `*Radius` is used if the base is `Cylinder`.
-
-**Example YAML configuration for a square wooden pole:**
-
-```yaml
-PoleShape:
-    Value: Square
-PoleSide:
-    Value: 0.15
-PoleLength:
-    Value: 3.5 
-Material:
-    Value: Wood
-```
-
 #### Positioning and Spacing
 Key parameters control how the structure is placed:
 
@@ -150,18 +135,23 @@ Key parameters control how the structure is placed:
 - **TiltY**: Tilt angle of the PV modules (and rafters/purlins depending on the type).
 - **PanelOffset**: Distance between the structure's mounting point and the panel center (useful to model mounting clamps or gaps).
 
-![Agrivoltaic Fence](uploads/structure/AgriFence.png)
 
-Figure 4 - Agrivoltaic Fence structure.
+![HSATS](uploads/structure/HSATS.png)
+
+Figure 4 - HSATS structure With with highlighting objects representing the different components. This object represent a group you can duplicate along the X axis and Y axis to form a full AV system.
+
 
 ![PV Table](uploads/structure/PVTable.png)
 
-Figure 5 - PV Table structure.
 
-![HSATS](uploads/structure/HSATS.png)
+Figure 5 - PV Table structure groups. PV tables have diagonals that start from the smallest pole of the group and end at the largest pole of the group. The length and angle of the diagonals are calculated automatically.
+
+**Warning**: If the tilt angle is too high for the given base height, the structure may extend below ground level. Ensure that `Height` or `PoleSpacingX` is increased, or `TiltY` is decreased, to avoid a `ValueError`: "Invalid PVTable configuration: The tilt angle is too high for the given base height. This results in the structure extending below ground level. Please increase 'Height' or 'PoleSpacingX' or decrease 'TiltY'."
 
-Figure 6 - HSATS structure.
 
+![Agrivoltaic Fence](uploads/structure/AgriFence.png)
+
+Figure 6 - Agrivoltaic Fence structure hasn't affected by the tilt angle. One structure group is only composed of a pole and two horizontal bars.