On Tue, Feb 2, 2010 at 12:52 PM, DJ Delorie <[email protected]> wrote: > >> - "offset" button like 2d CAD packages have >> - "extend/trim" mode like 2d CAD packages have > > Could you define these? >
Have you ever use autocad or qcad? "offset" means you can enter an offset, say 100 mils, then select on one side of an existing object and make a new object at that offset. It is an easy way to make a line parallel with another one, a concentric circle, a concentric arc, or a trace that follows the inside / outside of another one. (by offsetting from each line or arc in the existing trace). Extend lets you define a limiting object and then click on the object you want. It will extend until it hits the limiting object. Trim is the same thing, but the object is made shorter rather than longer. These operations only make sense for line and arc objects. Join does a trim/extend of two objects to their junction point. Optionally you can decide a radius or fillet length and the arc or line will be inserted automatically. These operations all have one thing in common: they let you do accurate work based on existing objects, without working on a grid. You can try them in qcad. apt-get install qcad Regards, Mark markra...@gmail -- Mark Rages, Engineer Midwest Telecine LLC [email protected] _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
