On Mar 18, 2011, at 2:23 PM, Martin Kupec wrote: > If layers types would be defined by attributes, someone would be able to > declare one layer both as conductive and as silk for example. That could > cause me a nighmares. That is why I insist on 'typed' layers, not > 'tagged' layer.
No. The nightmare is classification. It's perfectly possible to put conductive ink on a board with a silkscreen process. Layers should, of course, have electrical properties: conductivity, dielectric constant, permeability. Also thermal and mechanical. More grist for the composition machinery, of course, because users will want to use "copper" as shorthand for a list of properties. But the properties are what the code should be paying attention to. John Doty Noqsi Aerospace, Ltd. http://www.noqsi.com/ j...@noqsi.com _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
