Under the Hood //query the world space position of that vertex xform -query -worldSpace -translation pSphere1.vtx[228]; //query the bounding box //The values returned are in the following order: //xmin ymin zmin xmax ymax zmax. xform -query -boundingBox pSphere1; 1.5 Variables and Data Types 1.5.1 Definition and Syntax Variables are the cornerstone of each MEL script. In layman's Chapter 1 //the existing items on the active list. select -replace pSphere1.vtx[228];