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Mail Archives: geda-user/2017/11/18/14:06:54

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Date: Sat, 18 Nov 2017 20:16:08 +0100 (CET)
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To: "Peter Stuge (peter AT stuge DOT se) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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From: gedau AT igor2 DOT repo DOT hu
Subject: Re: [geda-user] [pcb-rnd] new feature: shape generation (video)
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On Sat, 18 Nov 2017, Peter Stuge (peter AT stuge DOT se) [via geda-user AT delorie DOT com] wrote:

> gedau AT igor2 DOT repo DOT hu wrote:
>> https://archive.org/details/pcb_rnd_shape
>
> That looks cool! Thanks a lot. :)

Thanks!

>
> I have a question: The rectangle with rounded corners doesn't
> actually have round corners in the video... Already fixed?

pcb-rnd (and pcb mainline) has a poly lib that does not support arc in 
polygon contour - anything that you see as round in a polygon is just 
line approximation with a finite number of straight line segments. Draw 
a rectangle, put a via in the middle, zoom in: you will see the lines.

The shape generator generates polygons. Because these shapes will often 
end up in padstacks, they should deal with corners sparingly. I've set up 
the approximation to depend on size. I did small objects in the example, 
at high zoom level, so the approximation is more visible. It was 
intentional, to show the viewer that round corner is really an 
approximation.

Regards,

Igor2


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