[Gmsh] import + meshing of step file
gdmcbain at freeshell.org
Fri Oct 15 00:06:03 CEST 2010
2010/10/15 jb.leydet <jb.leydet at laposte.net>:
> I'm facing a problem with gmsh:
> I'm trying to import and mesh a step file. All surfaces seem to have meshed properly, but then I get an error while trying to mesh the volume.
> I attach the error text (featuring some weird "Info : Starting subloop 4 in Line Loop 4 (are you sure about this?)" messages... maybe that could be the source of the pb?).
> I also attach the original step file and the final geo file.
I found that I could mesh this coarsely. I created a file
air-channel.geo containing just the line
then meshed it on the command line with
$ gmsh -3 -clscale 0.2 air-channel.stp
(equivalent operations are available in the GUI too). This worked
O.K. with different values of clscale, like 0.5 and 1.0 (quite coarse)
but did fail for 0.1; the error was different from yours though (which
might indicate some progress?):
Error: Invalid PLC.
Two subfaces (733, 7035, 7415) and (759, 7273, 7016)
are found intersecting each other.
Hint: Use -d switch to find all intersecting facets.
I didn't follow up the hint, as "-d" isn't a known option for my Gmsh
(2.5.0, compiled from SVN a couple of weeks ago, on 64-bit Linux Mint
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