Re: gEDA-user: trace calculation

[Karel Kulhavy <clock@xxxxxxxxxxxxx>]

On Fri, Jan 06, 2006 at 09:12:09AM -0500, DJ Delorie wrote:
> 
> > > As an FYI, pcb always uses round flashes for traces.  A trace of width
> > > W has a corner with radius W/2 on the outside, not a sharp 90 degree
> > 
> > Why W/2 and not W?
> 
> The diameter of the rounded ends of traces is W, to match the
> thickness.  Therefor the radius is W/2.  That's just the way it is at
> the moment; only square pins/pads and polygons have sharp corners.
> 
> So, instead of the width "bump" being 1.414 at 90 degree corners,
> it's only 1.207 or so.

I suggest it to be W and not W/2. Then the width "bump" would be 0.

CL<