> Why arc and circle are not merged? Because the diameter of the arc > is the center of the bent line; however, the diameter of a circle is > the edge.
I.e. you're listing a *stroked* arc vs a *filled* circle? I like the idea of using geometric shapes at the lowest level, but for most PCBs this is *way* too low-level to be efficient. We need some way of arbitrarily grouping shapes, grouping groups, etc, and creating some sort of macro/library/callout for those groups, so that we don't end up (for example) redefining a pad stack for every one of hundreds of pins. If our PCB file format had the concept of a "grouping function" that could define named macros that took named parameters, with some simple math and control logic, we could then use those macros to define new primitives. So a function that defined a standard pad stack for a pin could be later called with a few simple parameters for each needed pin. This same grouping function becomes our element library :-) _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user