Re: gEDA-user: Polygon islands in PCB

[Ben Jackson <ben@xxxxxxx>]

On Tue, Aug 26, 2008 at 11:21:47PM -0700, Dave N6NZ wrote:
> Is there some trick I don't know for insetting a smaller rectangle 
> inside a larger one that gives me automatic clearance?

Sure, draw an enclosed box with traces (not connected to anything).  The
hole will be removed.  The trace (which is probably harmless, but might
accidentally be some kind of great waveguide antenna at some wavelength)
will still be there.  The rule for that is that the largest part of the
polygon will remain (you can see this if you just draw a rectangle and
slice it in half with a line).  If your hole is big enough, constructing
other polys to fit is your only hope.

The easiest way to add this feature might be to have a tool which slices
a polygon for you to make holes, rather than an element that clears
polygons but is otherwise invisible (?).

-- 
Ben Jackson AD7GD
<ben@xxxxxxx>
http://www.ben.com/


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