This is a paid asset, but now you can download Circle Layout Group Free.
Detail this asset from Unity Store: Original Link
Circle Layout Group v1.1
CIRCLE LAYOUT GROUP
A Unity Plugin by Emotion Theory
A UI Component that automatically positions your objects in beautiful circular arrangements.
HOW TO USE
* Add a CircleLayoutGroup component to a UI object. That’s it!
* Alternatively, check out some of the samples in the Scenes folder.
FEATURES
* Full Source Code.
* Automatic, simple, intuitive. Add the component to a parent object and have its children arrange themselves accordingly.
* Works just like Unity’s built in UI Layout components, i.e. GridLayoutGroup / HorizontalLayoutGroup / VerticalLayoutGroup.
* Customizable parameters. Several optional parameters can be adjusted to suit your needs, such as dynamic sizing of objects, among several others.
THANK YOU FOR YOUR INTEREST IN EMOTION THEORY’S CIRCLE LAYOUT GROUP
Consider checking out our other plugin, Hex Layout Group, which works similarly to this one.
See more of my assets and game projects at emotiontheory.com
CONTACT
Inquiries, questions, feedback or suggestions can be sent through email or twitter @EmotionTheory.
LEGAL
(C) Copyright 2018 Emotion Theory Limited.
All code is provided as-is, etc, etc. No responsibility is on my part if something happens to your computer or your project. You are free to use this package among various projects, but this purchase license grants the use for only one developer. Distributing any and all text files and code to others is strictly prohibited.