The whole problem of "physical stack" is something we're working on separately. I think we've agreed that the physical stack is determined by the layer *group* order, from the "component" group through the "solder" group. This breaks when you have copper outside those two, like "component, solder, signal1, signal2" but oh well.
The second thing the core needs to know is the editing stacking order - the order in which the user has selected to view the layers, and the priority order that it uses for selecting things you click on (like traces). The core needs to know which of the seven traces you just clicked on is the one you meant, and to do that, it needs to know what's "on top" visually. What the core does NOT need to know is the rotational orientation of the board on the screen, or the scale - it only needs to know relative distance from the viewer, so it can figure out what a mouse click does and what order to draw things in. _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
