On 09/12/2010 10:36 PM, Andrew Poelstra wrote:
In theory, PCB never needs to know how an entire "pcb assembly" is composed. That's the fab's job. IME most multi-PCB projects involve socket/plug combinations so that the different components can plug into each other and you don't have to worry about shared traces or layers.
A running instance of pcb wouldn't have to know anything about anything not loaded into it. But think what you get with a complete layer stack method of describing the physical reality -- solder can be just another layer with connectivity and conductivity properties such that a super assembly of previously independent subcells like 1 rigid and 2 flex boards can be loaded as one assembly, netlisted, cross probed, connect model information to as built information, model information to extracted capacitance from layout, etc. etc. etc. John G -- Ecosensory Austin TX _______________________________________________ geda-user mailing list geda-user@xxxxxxxxxxxxxx http://www.seul.org/cgi-bin/mailman/listinfo/geda-user