Yeah. I can't imagine a modern photo plotter having trouble with it. In CNC code, doing a circle cut in arc segments is considered 'good practice' by some, since a machine controller will only pause between lines of G-code. If a circle is done as quadrants, then if something goes wacky you can pause the machine between quadrants. Otherwise your only option is the E-stop button, where you lose position and probably the work piece also. Not an issue for photo plotters.
Maybe that is where the bug report originated? Somebody commenting on G-code 'best practices'? (Which I agree don't necessarily apply to gerbers...) -dave On Aug 31, 2010, at 1:02 PM, DJ Delorie wrote: > > PCB uses the G02/G03 codes that way too. > > My point was, if RS274X has a way to differentiate between 135 degree > arcs and 225 degree arcs, that same way should work for 315 vs 45. > > I suspect the one-quadrant format is ancient, and people added the > multi-quadrant format to "fix" and replace it, but never deprecated > the older one. > > > _______________________________________________ > geda-user mailing list > [email protected] > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user > _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
