Hi John and all, DXF has two entities for line representation.
The "line" entity, which always has a width of 0.0, only thickness may *varies* (thickness as in um copper). The "polyline" entity which can have a width, thickness and can have multiple vertices (trace segments for pcb orientated people) and these segments can even be arcs and can be discontinuous (i.e. branches are possible, it remains one single entity of grouped vertices). The endcap for a "polyline" is always square (bummer). Both "line" and "polyline" are based on the centerline as is the case with pcb. AutoCAD has a funny notion of color, a "color" represents a "physical" pen width which stems from the ancient times when we were sentenced to use pen plotters (before the toner-cartridge was invented). Kind regards, Bert Timmerman. On Sat, 2007-11-10 at 09:56 -0600, John Griessen wrote: > Bert Timmerman wrote: > > Hi Steve, > > > > If there is some sort of importer HID template available ;-) > > > > Methinks I know enough of the DXF fileformat to write such an importer. > > > > > One question that comes to mind is: what do we want to import ? > > > > Would that be traces, outlines, keepouts, artwork, ... or all sorts of > > other (2D) stuff. > > Does DXF represent with centerlines like PCB, or outlines like postscript? > > John G > _______________________________________________ geda-dev mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev
