polygon "twin hole" bug
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
pcb |
Fix Released
|
Low
|
Bert Timmerman |
Bug Description
Hi all,
Evan found a bug in pcb-rnd which turned out to be a bug in pcb mainline as well. It is really easy to reproduce from scratch:
1. draw a poly
2. draw a hole in it (strange: first click ignored?)
3. keep on drawing the second hole (strange: marker is not moved?)
4. bug: the poly of step 1 is duplicated (copied in place), and the new hole is created on the new poly
Important: do not switch tool between step 2 and 3! This, together with the fact that it can be reproduced with both HIDs suggests it's a bug in core (the strangenesses are maybe related to handling of the mode variable, I have no idea how the poly gets dupped).
Detecting the duplication polys:
- save before and after step 4, compare the two save files; instead of one poly object with two holes there are two poly objects with one hole each
- move the poly after step 4; expected: moving one poly; what happens instead: moving the top poly, leaving the bottom poly in place
- in step 3 draw the second hole so that it has an intersection with the first; that intersection is the only copper hole at the end, because it is not covered by any of the polygons
In pcb-rnd I am still knee-deep in the conf rewrite, but I plan to look at this bug after I finish. In case someone debugs this in mainline, I'm interested in the result. Else I can share my findings/patches when I get to it, so mainline developers can fix this in mainline.
Regards,
Igor2
Changed in pcb: | |
status: | Fix Committed → Fix Released |
Fix pushed to home/bert/ LP1604524_ v2.
Please test and review.