kicad-developers team mailing list archive

[Miguel Angel Ajo Pelayo <miguelangel@xxxxxxx>]

Hi Dan,

   I think you're not the first one talking about this on the list. Somebody
suggested doing it with tracks:


http://biro.wordpress.com/2011/11/25/stitching-layers-between-copper-zones-in-kicad/

   Greetings!,

PS: I'm also used to work placing standalone vias to stich planes in other
EDA tools,
so if you come up with a solution, I promise to make use of it! ;)
*   *

2012/4/13 Dan Chianucci <trump211dev@xxxxxxxxx>

> I have a board that has a GND zone on the top and on the bottom.
> Normally, I would connect the two zones in various places around the
> board with vias. However, PCBNew does not support this functionality.
> For one, a lone via cannot be placed onto the board if it is not
> connected to a pad somehow.  And secondly, If there is a lone via
> somewhere on the board (this can happen if the save file is manually
> edited) the Zones do not connect to it even if they are in the same
> net.
> I am trying to add this functionality, however I am unsure how to go about
> it.
>
>
> It seems that  the "AddClearanceAreasPolygonsToPolysList" function
> found in  "zones_convert_brd_items_to_polygons_with_Boost.cpp" is what
> removes the zone area from around the via.
> Specifically, there is a for loop at line 258 which goes through the
> Tracks (and segvias) and removes the area around those that are on the
> same layer, but of a different net.
>
> However, I can't figure out why this would be removing the area from
> around the lone segvias even though they are of the same net?
>
> I notice also that these lone vias when drawn by Pcbnew do not have
> there net labeled like the connected ones.  This leads me to believe
> that the segvias are somehow 'forgetting' their net info if they are
> not connected to some other item in the same net, or that they are not
> are not being included in that net for some reason.
>
> Are there any ideas as to what to check to see whats causing this.  If
> i am correct I will look into adding the necessary code to allow lone
> vias which hold onto their individual drill and diameter size.
> I am also wondering if there is any interest in being able to modify
> individual vias.  The save function saves this information for each
> individual via, so it would just be a matter of adding a dialog?
>
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-- 

Miguel Angel Ajo Pelayo
http://www.nbee.es
+34 636 52 25 69
skype: ajoajoajo