point-seq is a sequence of point objects.
coord-seq is a sequence of coordinate pairs, which are real numbers. It is an error if coord-seq does not contain an even number of elements.
The drawing functions take keyword arguments specifying drawing options. For information on the drawing options, see 3.2, Using CLIM Drawing Options. If you prefer to create and use point objects, see 2.5.2, CLIM Point Objects.
Common Lisp Interface Manager 2.0 User's Guide - 3 Mar 2015