On Thu, 2010-01-28 at 19:05 -0600, Mark Rages wrote: > On Thu, Jan 28, 2010 at 3:50 PM, DJ Delorie <[email protected]> wrote: > > > >> I was afraid of that... > > > > :-) > > > > So I guess I need to change the Arc object to store the angles in > floating-point and bump the file format version. > > Any objections? It looks like a fair amount of work, including the > dark and foreboding "puller.c".
Last time we discussed this, there was some comment on what to use. Fixed point seems appropriate, since it retains precision most uniformly. We can also rig the divisor to be a power of 10, so the angles are accurately represented within the file-format with a low number of decimal places. What "I would do"^TM, would be to rename the field in the data-structure definition, then go through fixing compile breakage adding some kind of macro PCB_ANGLE_TO_RADIANS(...) to all accesses. Then a bulk rename back (or not, depending on how "temporary" looking the new field name was). Other alternatives included adding an additional arc representation, defined by end-points in the usual PCB coordinates, and a third parameter, either a radius, curvature or a third point on the arc. (for example). Best regards, Peter C. _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
