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Date: Fri, 22 Jan 2016 10:03:57 +0100
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] PCB data structures (was: features: layers stack,
 padstack/vias)
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Precedence: bulk

number of pcb_layer objects--which in turn contain the geometric primitives--and pcb_element objects which aren't associated with a layer.  Objects of type pcb_polygon can have child objects of type pcb_polygon_hole:
> >
> > pcb_layout
> > +- pcb_layer
> >    +- pcb_arc
> >    +- pcb_line
> >    +- pcb_pad
> >    +- pcb_pin
> >    +- pcb_polygon
> >       +- pcb_polygon_hole
> >    +- pcb_rat
> >    +- pcb_text
> >    +- pcb_via
> > +- pcb_element
> 
> Sounds reasonable, and similar to what we have now but with much cleaned up
> naming and hierarchy.

Everyon may know about it already but I forgot. If there are drawing primitives: line, arc, circle, polygon and cut out these on any layer.

DRC clearance test check for interection of a grown/bloated by clearance value copy for each clearance value against each other net.

Connection thru flooded copper make a cutout by a copy grown by appropriate clearance fot the nets.


Nicklas Karlsson