Circle

Overview of the Circle labeling tool in Ango Hub

The circle labeling tool allows you to annotate using circles created out of three points.

In the final export, circles are represented only by the coordinates of the three points used to create them.

Adding a Circle tool to your project

From the project’s Settings tab, enter the Category Schema section.

Click on Add Category. From the list that appears, click on Circle.

A new row will appear named Circle. Click on it to expand it.

Give your circle tool a title.

Enable the Required toggle if you want to force labelers to create at least one circle for each asset. When the toggle is disabled, labelers will be able to save and move to the next asset without creating circles using the class you've just created.

If you would like to ask labelers further questions, for example, if you want to show a further radio after drawing a circle, click on Add Classification and add a further question. More on nested questions here.

Using the Circle Tool

Select a Circle tool from the Tools section in the left sidebar of the labeling editor.

Click three times on the image to create three points. They will form the circle.

To edit the circle, click on it to select it. Then, drag it by using your mouse cursor, or drag each point to edit the circle.

Data format

Please see the page on the Ango Export Format to learn how the circle appears in the final export:

Ango Export Format