# Terrain visualization

## Terrain Visualization

The *Terrain Visualization* is used to verify that waypoints are all set above ground level. It can be toggled visible/hidden using the **T** button (next to the zoom +/- buttons shown above).

<figure><img src="/files/Kadd6xWvGVT5pFbxHrjn" alt=""><figcaption></figcaption></figure>

The indicator shows the altitudes of planned waypoints and the terrain:

* Circles indicate the altitude for each waypoint/pattern:
  * The green line indicates the *survey plan.*
  * The circles indicate the different points.

{% hint style="warning" %}
Red bars indicate below-ground waypoints!
{% endhint %}

***The legend for the circle text is given below:***

| **Text** | **Type**              |
| -------- | --------------------- |
| **S**    | Start point           |
| **T**    | Takeoff point         |
| **L**    | Land point            |
| **V**    | VTOL Takeoff waypoint |
| **1...** | Number of waypoints   |


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