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Question by alexanderameye · Jul 16, 2017 at 09:50 AM · boundsparent-childcenterparent transformpivot-point

How to get the center of an empty parent gameobject?

Hey, I have this scene:

alt text

With the transform handle set to 'center'. 'GameObject' is just an empty gameobject. How can I get the position of that center tool handle?

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Answer by Bunny83 · Jul 16, 2017 at 10:12 AM

You can't. At least Unity doesn't calculate that for you. In the editor it's a feature that is built-into the editor.

The best approach would be to iterate over all Renderer in all child objects, gather the worldspace bounds values and combine them with Bounds.Encapsulate.

 Vector3 GetCenter()
 {
     var rends = GetComponentsInChildren<Renderer>();
     if (rends.Length == 0)
         return transform.position;
     var b = rends[0].bounds;
     for(int i = 1; i < rends.Length; i++)
     {
         b = b.Encapsulate(rends[i].bounds);
     }
     return b.center;
 }

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avatar image alexanderameye · Jul 16, 2017 at 10:33 AM 0
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Encapsulate returns void so I removed the 'b = '. Then it kind of worked but when I put a gameobject at the position the function returns, it's still not exactly at the position it should be but slightly off.

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