dog-gone dog-bone.

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realthunder
Posts: 1295
Joined: Tue Jan 03, 2017 10:55 am

Re: dog-gone dog-bone.

Postby realthunder » Tue Jun 11, 2019 5:27 am

sliptonic wrote:
Mon Jun 10, 2019 11:28 pm
Ping. Any ideas?
PR submitted. It's caused by overlapping vertices.
Try Assembly3 (latest version 0.10.2) along with my custom build of FreeCAD at here.
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freman
Posts: 867
Joined: Tue Nov 27, 2018 10:30 pm

Re: dog-gone dog-bone.

Postby freman » Tue Jun 11, 2019 8:45 am

Thanks to sliptonic for digging into the dog-bone and finding out exactly what part of my design triggered the bug and kudos to 'thunder for finding and fixing it and adding the missing error trapping. Since AreaPy is such a low level function this will add to wider stability.

Since it seems there was no error checking on allocations in this file, maybe it would be worth a note to do an audit of similar foundational geometry files for error trapping on object creation. This could pre-emptively fix other later bugs ( or possibly existing ones ) if there are similar unprotected allocations at this level.

It's nice that my model, designed to be a critical test of hardware accuracy, also tested accuracy in the software geometry. As sliptonic commented earlier, the two are not unrelated.

I have seen a couple of other oddities which were not worth reporting as bugs but it will be interesting to see whether the <= change tidies those up too, once this is merged.