On Sat, 2008-11-08 at 23:13 -0500, John Kasunich wrote: > The Mach manual says "In Absolute it will, of course usually be > necessary to use both I and J words unless by chance the arc's centre is > at the origin." So Mach is using zero if you don't specify I or J (or > K, depending on the plane).
I would interpret that to mean the "origin" point of the arc, ie. the current position. So if I or J were left out, then the current X or Y value would be used (and the current Z for K in those cases). I don't know if that justifies anything, but I think it makes the behavior deterministic. Thanks, Matt ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users