kicad-developers team mailing list archive

[Jeff Young <jeff@xxxxxxxxx>]

We enforce minimum width by deflating the zone by 1/2-min-width, simplifying the polygons, and then re-inflating by the same amount.  If the spokes are the same width as the minimum, they will disappear.

> On 8 Jul 2019, at 13:57, Wayne Stambaugh <stambaughw@xxxxxxxxx> wrote:
> 
> Isn't the thermal spoke width a different setting than the minimum
> width?  I'm under the impression that these two zone properties control
> completely different aspects of the zone fill and have no impact on the
> other.
> 
> On 7/7/2019 5:01 PM, Seth Hillbrand wrote:
>> We've done this a few times already with zones.  As long as the existing
>> fills don't change, we've left the property.  Refilling is expected to
>> change, I think.
>> 
>> I'd be in favor of allowing min width to mean min width.
>> 
>> -Seth
>> 
>> On 2019-07-07 16:08, Jeff Young wrote:
>>> We have a zone property “Minimum Width”.  Unfortunately, it isn’t.
>>> It’s the width we’ll collapse (so minimum width would be 1nm more).
>>> 
>>> I’d be inclined to fix this (primarily so that thermal spokes and
>>> minimum width could be the same), but then we have the old “will
>>> change old boards” issue.
>>> 
>>> We could also try and change the property name, but I can’t think of a
>>> concise way to express “remove features this width and less”.
>>> 
>>> Thoughts?
>>> 
>>> Cheers,
>>> Jeff.
>>> 
>>> Ref: https://bugs.launchpad.net/kicad/+bug/1835674
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