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Hi Wayne and others,
I've been loosely following various iterations of the via
stitching discussion for quite a while now.
Mainly as its a feature I really want as well.
To me, the preferred approach is probably more like this....
- stitching should be a property of a any polygon or power plane
(collectively referred to as a pour below)
- stitching should be defined as between 2 or more layers (multi
select checkbox/list)
- any connected copper on included layers should be
automatically stitched to the configured pour.
- there should be 3 possible states for each layer configured
for stitching in a pour.
- None - (no stitching from that layer)
- Always - Stitch unless the target copper is set to None
- Maybe - Stitch if the target copper is also set to Always
- only pours that have "stitch" or "stitchable" and a matching
layer should be stitched together (this allows pours to not be
stitched to a larger pour if required)
- a stitching pattern should be able to be specified, eg
- grid (selectable size)
- rings (from the center with radius increments, and degree
or mm spacing around each ring
- # vias
- pattern from a bitmap
- Obviously, stitching should only occur between copper with the
same assigned net.
I'd think that stitching vias should be always ripped-up and
re-poured along with the copper
These are just rough thoughts, there are likely corner cases that
haven't been considered.
What it does do however, is provide stitching as a hands off, but
still customizable option
Oh, and the same capability could be applied to layer/net
combinations too.
Regards
David G
On 29/10/16 12:58, Heikki Pulkkinen
wrote:
Hi Wayne,
I think that there is two places when user is "wrong"
wit his/her will. One is when there are not at least two pours
to connect with and second is that there must be at least one
pad in connection chain. If antennas are user will, it is better
create component. I might be wrong, but that is how I think it.
I did some experimental development in my code which now keeps
vias netcodes Steven's ideas way, and take care of that there is
connected pad. These two videos show how that works. I try more
other things when I am back home again.
Regards
Heikki
https://youtu.be/wXdVl4WXCJ8
https://youtu.be/5qe-XnVJwXs
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