To move forward with some projects, PCB needs to understand more about the physical stackup of the board. Harry mentioned once that the drawing layer stack should BE the physical layer stack. I.e. the topmost copper layer in the menus should represent the component side copper, the next ones the inner planes, and the last one the solder side copper.
In theory, we could invert the menus when we flip the board too ;-) (just kidding). Anyway, does anyone object to this type of change? The projects that need this type of conceptual change are: * The layer types thing (i.e. drawing layers can be more than "just copper") (this is more of a "we should solve both problems together, to avoid headaches later" issue). * Blind/buried vias. * Any type of 3-D renderer. It would also allow us to cut/paste/tile boards with different stackups more reliably, by canonicalizing them. Currently, merging boards is sensitive to the order of layers, without regard to which are component/solder/inner. There was also some discussion of getting rid of the "layer groups" concept and forcing one drawing layer per physical layer. I suspect we'd need to be able to color tagged nets differently to make up for this type of loss. Thoughts? _______________________________________________ geda-dev mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev
