Possible bug in pdetoolbox
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Hi, I am trying to define the geometric layout of a pde problem using the PDEtool GUI that involves two circular regions inside another, occuring several times within a global region. However after trying to define the exact position of the second of these circular regions with a parameter dialogue pop-up I get the error "invalid geomtery detected. Edges overlap or inersect at non-end points". What I am attempting is perfectly valid. I have seen similar recent unanswered questions this year raising this problem with PDEtool in MATLAB 2014b. It seems like there is a bug in the pdetool geometry exception handler. Is this a known bug? Suggested workarounds? I am using Windows 7 enterprise edition with MATLAB 2014b. Many thanks for your kind attention, Simon
回答（1 个）
Alan Weiss
2015-10-15
编辑：Alan Weiss
2015-10-15
0 个投票
Sorry that you got bit by a bug; at least, that's what it sounds like to me.
I think it might be best to define your geometry at the command line. The documentation for this is pretty complete, if not simple. Make sure that you use parentheses in the set formula to get the geometry that you want.
The other thing to try is to write a script using the pdecirc command, but I don't know if the result would be any different.
Good luck,
Alan Weiss
MATLAB mathematical toolbox documentation
2 个评论
Simon Le Blond
2015-10-15
Alan Weiss
2015-10-19
Simon, it would help us diagnose and fix the bug if you would give us exact reproduction steps. Post here, or email me directly: Alan.Weiss@mathworks.com
Thanks in advance,
Alan Weiss
MATLAB mathematical toolbox documentation
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2015-10-15
2015-10-19
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