Hi, I just got hurt by a relocated symbol again. The whole business of symbol translation is a pain and a likely source of error. Why not introduce the notion of an explicit origin in the definition of symbols? You put the origin at some outstanding point of the symbol and keep it there. This would allow to put the symbol somewhere in the middle of the canvas. No need to relocate the symbol just because of some additional graphics at the bottom. No more broken schematics because of such cosmetic shifts.
At first glance, an origin seems to imply additional offset calculation for each and every coordinate. In reality this has to be done only once when a symbol is loaded. The coords relative to the origin of the symbol would be cached. The rest of the code could remain unchanged. A different approach would be to allow negative coords in *.sch format. In that case the origin remains always remains at (0,0) but the viewport might be shifted to extend into the negative. Any thoughts? ---<(kaimartin)>--- -- Kai-Martin Knaak tel: +49-511-762-2895 Universität Hannover, Inst. für Quantenoptik fax: +49-511-762-2211 Welfengarten 1, 30167 Hannover http://www.iqo.uni-hannover.de GPG key: http://pgp.mit.edu:11371/pks/lookup?search=Knaak+kmk&op=get _______________________________________________ geda-dev mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev
