On Jan 3, 2011, at 8:20 AM, Stefan Salewski wrote: > I guess all this was discussed on the list multiple times in the past, > so this is more a note to myself... > > I think it may be useful to have two types of symbols, soft and hard. > Hard symbols have an footprint attribute and maybe additional hard > properties. Soft symbols are simple an OpAmp or a resistor -- only type, > no parameters defined. For schematic entry the use can select "Add soft > symbol" or add hard symbol (if he exactly knows what he wants). If a > schematic contains soft symbols, then there is an additional step > necessary before PCB layout can start: Selecting footprints and slots -- > this step may be supported by databases. (The user may have the optional > choice to generate hard symbols from soft ones by specifying footprints > and other hard facts in an early input stage.)
Besides allowing attributes to contain a value representing unknown or be empty, I don't see why the application needs to know the difference between a hard and soft symbol. If the schematic editor allows empty attributes and allows the user to edit these attributes, wouldn't it be capable of the functionality requested above? > Note, this is not what we currently have with our light/heavy symbols. > The point is, that we should make a strict decision, not make a soft > transition from light to heavy but adding some attributes. Cheers, Ed _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
