kicad-developers team mailing list archive

[Seth Hillbrand <seth@xxxxxxxxxxxxx>]

So we have an archaeological (and very valid) bug report over at lp:1794571

The board in question (thermo.brd attached) has a SEGZONE fill without an
associated area.  As far as I can tell, the "zone" doesn't have boundaries
so much as just segments.  This fails when we load into our connectivity as
a zone because we assume a bounded polygon even for the old segment-based
fills.

I loaded it up in 4.0.5 and it looks like the attached image.  I can't see
that there was any way to edit the segment fill other than just deleting
individual segments.

Converting into 5.0, we have (I think) three options:

1) Drop all segments that are in unbounded zones
2) Convert the unbounded zone segments to plain segments (this looks like
the 5.0 image attached)
3) Work out a bounding box when loading and set that to segment-based fill

All three options will result in changing the board.  Option 2 results in
the most fidelity to the original design but is hardest to edit.  Option 3
is easiest to edit but has the biggest chance for breaking something.
Option 1 is the furthest from the original board design but easier to edit
than Option 2 and safer than Option 3.

If there was never a good way to edit these type of fills, then I think we
should go with option 2.  But I'm open to suggestions here.

-Seth

Attachment: 4.0.5Segzones.png
Description: PNG image

Attachment: 5.0.1.png
Description: PNG image

Attachment: thermo.brd
Description: application/kicad-pcbnew