Hi Nikiuta3D,

There is a script for Bounding Box center.
Your .3dm shows 6 points, at various points near the "center".

The script IS in Burr's script archive - collection of scripts posted on the forum:
http://moi3d.com/forum/index.php?webtag=MOI&msg=7841.6
Name of script: PointToMultiBoundsCenter

script: /* Place a point at each selected object's bounding center */ var objs = moi.geometryDatabase.getSelectedObjects(); for ( var i = 0; i < objs.length; ++i ) { var obj = objs.item(i); var pt = obj.getBoundingBox().center; var ptfactory = moi.command.createFactory( 'point' ); ptfactory.setInput( 0, pt ); ptfactory.commit(); }

Re: Display artifacts, see:
https://moi3d.com/forum/index.php?webtag=MOI&msg=10723.1

- Brian
(Other members will give better answers.)