• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
1
Question by neo_savvy · Jan 09, 2010 at 09:31 PM · gameobject

How do I center a GameObject on its children?

I can do this using the editor but I'm trying to accomplish same using the API. Couldn't find anything the script reference. Any help would be highly appreciated. Thx.

Comment
Add comment · Show 2
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image duck ♦♦ · Jan 11, 2010 at 03:13 PM 0
Share

Can you describe more clearly what you want to do? Do you actually want to set a parent gameobject position to the combined centre position of all its child gameobjects? I.$$anonymous$$ without moving the child objects at all, only the parent? at runtime?

avatar image neo_savvy · Jan 13, 2010 at 03:27 AM 0
Share

Yes. What you described is exactly what I'm trying to accomplish. I want to set the parent gameobject to the combined center position of its child gameobjects...without moving any child objects and at runtime.

4 Replies

· Add your reply
  • Sort: 
avatar image
6
Best Answer

Answer by Horsman · Apr 19, 2010 at 11:10 AM

Sum the transform.position of all of the children, then, divide that by the count of the children. This is the centered position. Set each of the children's parent to null, then move the parent object to that position, and then set the children's parent to the parent object again.

Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image
0

Answer by m50 · Jan 10, 2010 at 05:30 AM

You can try removing the parent of the child, set the position of the main object to its child, then reparenting

Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image
0

Answer by era · Jan 24, 2010 at 12:20 PM

You could save the current combined position of the children in a var, then center the children to the parent (maybe using transform.localPosition or whatever suits your specific need), and then move the parent along with its children back to the saved previous position.

Since you'll be doing all this in one frame it'll be as realtime as it gets. I don't know how expensive this will actually be but it could be worth a shot. Hope this helps, good luck!

Comment
Add comment · Show 1 · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Horsman · Apr 19, 2010 at 11:05 AM 0
Share

This likely won't be prohibitively expensive.

avatar image
0

Answer by Joe Wreschnig · Jan 25, 2010 at 06:21 AM

If you are trying to move the parent relative to the children, it sounds like you may have your parent/child relationship backwards or sideways. What benefits is the parent/child relationship getting you besides a headache trying to solve this? If nothing, just get rid of it.

If the two things were siblings or the parent/child relationship was swapped, for example, you could just set the center of one to the center of the other.

Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

If you’re new to Unity Answers, please check our User Guide to help you navigate through our website and refer to our FAQ for more information.

Before posting, make sure to check out our Knowledge Base for commonly asked Unity questions.

Check our Moderator Guidelines if you’re a new moderator and want to work together in an effort to improve Unity Answers and support our users.

Follow this Question

Answers Answers and Comments

No one has followed this question yet.

Related Questions

using Contains(gameObject) to find and destroy a gameObject from a list 2 Answers

Burning Mesh away 1 Answer

Positions of Objects in Unity - World Position, Transform Position, Inspector Position, Local Position, Prefab Positions, Center of Objects for Parents & Childs 1 Answer

Trash Collection For Instantiated Game Object 1 Answer

Dynamically how to detect a gameobject and its position? 1 Answer


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges