Arguments

ename  (ename) the entity to be removed from specified selectionSet; mus not be nIL
selectionSet  (pickset [ename]) the selectionset to remove the entity from

Return

T if the specified entity was successfully removed; NIL if entity is not contained in the selectionset

Example

(setq ss (ssadd))  <Selection set: 00000000401F7980>  new empty selectionset
(ssdel (entlast) ss)  NIL, (entlast) entity was not contained

Remarks

only entities are allowed in a selectionset, non-graphical objects are not allowed;

any selectionset always and only contains "main" entities; sub-entities like attributes or 2d/3d polyline vertices are not contained