kicad-developers team mailing list archive

[jp charras <jp.charras@xxxxxxxxxx>]

Le 20/01/2018 à 16:40, Wayne Stambaugh a écrit :
> I concur.  We should not be violating clearances even in the small
> amounts in this bug report.  I realize that this change will create a
> diff when existing designs are refilled but it is a more technically
> correct solution.  Until (if?) we support arcs for this, I would prefer
> to err on the side of caution.  @JP and @Tom, the two of you have
> written most of the polygon generation code, is there any reason not to
> change this.
> 
> Cheers,
> 
> Wayne

We can temporary use the proposed patch.

I'll try to calculate (later) a more exact shape.
Currently the simplified calculation creates a slightly smaller shape than required.
(No need to wait for arc support: just enhance the current calculation to create a better shape)

The proposed patch creates a slightly bigger shape than required.

> 
> On 1/19/2018 10:30 AM, Maciej Sumiński wrote:
>> After reading the bug report, I consider the changes proposed by Julius
>> sensible. What do you think? In particular I am asking our geometry experts.
>>
>> Regards,
>> Orson
>>
>> On 11/02/2017 03:18 PM, Julius Schmidt wrote:
>>> Hello,
>>>
>>> I filed a bug [1] a while ago pertaining to oval pads in zones leading
>>> to clearance violation in the Gerber output.
>>> I've tested the current master revision
>>> (e5c4cfc3b01724de705609c901575b40cd3958b4) and it still seems to be an
>>> issue.
>>>
>>> I'd appreciate it if someone took a look, as it is a bug that is
>>> potentially serious in production, since it can lead to Gerbers that
>>> violate clearance (even though the board passes kicad DRC).
>>>
>>> Best wishes
>>>
>>> Julius
>>>
>>> [1] https://bugs.launchpad.net/kicad/+bug/1665582
>>>
>>>
>>>
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>>
>>
>>
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> 
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-- 
Jean-Pierre CHARRAS