# Cross section tool

This article shows how the cross section tool can be used to project sections of the data to 2D and how to take measurements with them.

{% embed url="<https://youtu.be/3LbUP-sNd5c>" %}

1. Open the cross section tool from the left hand side menu. It opens the cross section pane at the bottom and activates the line section measurement tool.
2. Click the 3D view first to select the start point and then the end point for the cross section. Observe the geometry between these two points being shown in the cross section pane.
3. Use *Flip* to change the start and end points of the cross section, effectively to flip the 2D view across the up axis.
4. To get more or less points visible on the 2D pane, adjust the depth. This will collect points from wider volume on both sides of the line that was drawn.
5. Select the *Measure* tool in the cross section pane to do a line measurement on the 2D pane.
   1. You can use the grid lines to get a straight vertical or horizontal measurement.
   2. If you place the two measurement points at an angle, you will get both the horizontal and vertical measurements, as well as the direct distance measurement.
   3. To clear the measurements, click *Clear* on the 2D pane
6. To clear the entire cross section view, click *Clear* on the top right corner Distance measurement window.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.lumidb.com/user-guides/cross-section-tool.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
