CompuServe Messages

Hugh – Well okay, in that case, it's not too odd. Your original question gave me the impression that you were referring OSNAP not working if the "basepoint" (e.g., "LASTPOINT"), wasn't on screen, not the selection point or the entity that you're object-snapping to. The very same rules that apply to entity selection using the 'pickbox' also apply to entity selection using the osnap aperture target. The point that you give the (osnap) function is a selection point which the aperture target is centered on. The aperture target that's centered on this point must be on-screen in order for AutoCAD to find an object. AutoCAD must locate the object you want to OSNAP to using screen vectors and there aren't any screen vectors for objects or parts of objects that are off- screen so to speak, and hence, it can't find an entity at a selection point that is off-screen. -TonyT.