Create polygons

This guide explains how to create polygons in Emlid Flow 360.

Overview

Emlid Flow 360 allows you to create polygons from previously collected points and lines made up of a minimum of three points to define precise boundaries for land parcels, properties, and other areas and calculate their surface area and perimeter.

You can also import and export polygons in various formats, including DXF, SHP, KML, and CSV, to integrate with third-party software.

tip

You can collect and stake out polygons in Emlid Flow. Learn more in the Work with polygons guide.

Creating polygons

To create a polygon, do the following:

1. Open the Emlid Flow 360 app.

2. Select the project.

3. On the project screen, click the + button in the upper left corner and select Add line or polygon.

   tip

   To start creating a polygon, you can also select the objects from the list or press the shift button and pick the objects on the map.

   

4. Select at least three points you want to use either on the map or from the list. The selected set will appear in the line editor on the right.

   
   note

   The points can be a part of a line. If you select points from several, their geometry will change.

   tip

   You can remove points from a particular line by deselecting them in the list of objects or in the line editor.

   tip

   To change the geometry, you can rearrange points by dragging them.

5. In the line editor, check the Closed line checkbox to form a polygon and click Save.

   

6. Tap the resulting polygon on the map to learn more about it:

   

Now, you can proceed to create another line or polygon.

note

If you create several polygons and some of them share a side, make sure to use two separate sets of points for each polygon. Otherwise, you won’t be able to create two distinct polygons.

Editing polygons

To edit the polygon, do the following:

1. On the project screen, select the polygon on the map or from the list.

   

2. Edit the polygon by tapping the three dots in the line editor.

   

   Uncheck the "Closed line" box if you want to turn back to the line.

   

   Add or delete points by selecting them on the map or from the list.

   note

   If, after deletion, less than three points are left, the polygon will automatically turn into a line.

   tip

   Learn more about editing options in the Edit lines guide. The workflow is the same.