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Message #15934
Re: Trapezoidal pads and planes.
On 28.11.2014 14:54, Wayne Stambaugh wrote:
> On 11/27/2014 12:44 PM, Tomasz Wlostowski wrote:
>> On 27.11.2014 17:18, jp charras wrote:
>>> Le 27/11/2014 12:22, "Torsten Hüter" a écrit :
>>>> Hi Jean-Pierre,
>>
>>> Currently this in not the case in Pcbnew.
>>> This is acceptable for microwave applications, which are very specific
>>> (even DRC is specific in microwave applications, because traces are not
>>> equipot)
>>>
>> Dear Jean-Pierre & Torsten,
>>> But for usual applications DRC must take in account polygons.
>>> Currently I do not know a way to do that with a calculation time
>>> compatible with the on line DRC (calculating min dist between polygons
>>> is not as fast as calculating a min dist between basic shapes.
>>
>> I fully support the polygonal copper shapes, this can be used to
>> parametrically generate all RF components (TX lines, stubs, bends,
>> couplers, etc.) according to values provided on the schematics.
>>
>> Concerning the DRC - don't worry, it will come, sooner or later. The
>> geometry code that is used by the P&S can do DRC *really* fast.
>>
>> -my 5 cents.
>>
>> T.
>>
>
> Should we add polygonal pad support to the road map? It seems like a
> good candidate.
>
Hi Wayne,
Sure - but I wouldn't make them pads. Pads IMHO should be reserved, as
their name says, for component pads. I would rather add a generic
polygonal shape, with multiple user-definable anchors (that can be
treated like 0-sized pads) that can be attached to
traces/vias/pads/other anchors. Two big applications of such shapes are
touch buttons and microwave components. More on the attached drawing.
Sorry for brevity, busy times here.
Cheers,
Tom
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generic_shapes.pdf
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References