The area defined by a CLIP attribute is cut from a file and inserted into the IDF document.

CLIP="fieldname"

or

CLIP="left,top,right,bottom" (deprecated).

If there are no commas, then the parameter is assumed to be a fieldname whose boundaries are used to set a clip region.

The top left corner of the resulting area is positioned at the LEFT (or X) and TOP (or Y) position.