> For the complete documentation index, see [llms.txt](https://docs.phoenixlidar.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.phoenixlidar.com/spatialexplorer-8-and-9/user-interface/toolbars/workflow/create-intervals.md).

# Create Intervals

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<figure><img src="/files/lcM8EzNG8CASKsqystAz" alt=""><figcaption></figcaption></figure>

### Automatic Intervals

Using the **AutoSplit Trajectories** tool, the user can specify parameters related to flight velocity, angular velocity and minimum interval duration to automatically remove turns and split the trajectory into straight-line processing intervals, sometimes referred to as flight lines:

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

Intervals will be depicted in magenta in the main view:

<figure><img src="/files/jHlDkbZpZjWunfl9TbDF" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Note: With the **AutoSplit Trajectories** window open, you can reconfigure parameters and click "Compute" to recompute intervals.&#x20;
{% endhint %}

The interval list will be visible in the project tree, located under [**Intervals**](/spatialexplorer-8-and-9/user-interface/windows/project/intervals.md). Here, multiple lists of intervals can be stored (e.g., one list of intervals for sensor calibration and another interval list for data production):

<figure><img src="/files/PDzohOxFtoQP3int0QPX" alt=""><figcaption><p>An interval list </p></figcaption></figure>

For more information regarding modifying interval lists, merging intervals, or creating intervals manually, see [**Project->Intervals**](/spatialexplorer-8-and-9/user-interface/windows/project/intervals.md).&#x20;

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