[Gmsh] error in gmsh

[Ann-Sophie Provost]

Hello,

I'm using GMSH to mesh a cube respresenting a portion of ground, with 
topography on the top face. I'm in the middle of the process and this 
error just occurred. I am reporting to you as it is suggested in the 
error file (see attachment).
the structure file is Roselend1.geo

Also I would like to ask you if there's a trick to do this structure 
building faster? At first I started with the topography, and tried to 
extrude it by translation to do the bottom....but then the bottom had a 
topography as well, which I didn't want, so i did it manually and set 
all the altitude to -10000 m like I wanted. then for the other faces i 
couldn't just link the top and bottom points, the resulting mesh would 
probably not be very fine, so i'm doing it manually :-( (adding points 
in between and linking them)
I tried to extrude the bottom face by rotation to place it on the sides 
but i realized it's drawing the semi-circles as faces as well,
Anyway if you have advices to give me..... thank you!

Sincerely,

Ann-Sophie

-- 
********************************
Ann-Sophie Provost
Laboratoire de Géomagnétisme
IPGP
4 Place Jussieu
75252 Paris Cedex 05
France
Tel: 33 (0)1 44 27 24 07
provost at ipgp.jussieu.fr
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