Dear Jeremy and Alessandro,

Thanks for your input. Well, the simple ellipsoid problem seemed to work for me 
on my mac this morning. It guess it wouldn’t work yesterday after a long 
afternoon of frustration.

Anyway, I have a more complex example (see attached) that is causing some 
strange behaviour. When I run the script I get the following warning (see the 
first log file as well):


Warning : More than two degenerated edges in one model face of an OCC model

I am not sure what is causing this or how to get rid of it. Also, I am not sure 
if it is a problem or not. I can create the 1D mesh without any problem. 
However, when creating the 2D mesh, the following lines appear (see full log 
file for complete print out):


Info    : :-( There are 2 intersections in the 1D mesh (curves 4 12)

Info    : 8-| Splitting those edges and trying again

Info    : :-) All edges recovered after 1 iteration

I am not sure if this is a problem or not. Any thoughts? At this point, I have 
not completed the final geometry that I want and am concerned these warnings 
might lead to other problems further down the track.

Any advice would be welcome.

Thanks again,

Peter.

---------------------------------------------------------------------

Associate Professor Peter Johnston (FAustMS, FIMA)
School of Environment and Science
Griffith University | Nathan | QLD 4111 | Technology (N44) Room 3.19
T +61 7 373 57748| F +61 7 373 57656 Email [email protected]
On 5 Sep 2019, 11:38 PM +1000, Peter Johnston <[email protected]>, 
wrote:
Strangely, it works under 4.4.1 on my linux machine. I'll check the mac version 
again tomorrow.

Thanks,

Peter.

Associate Professor Peter Johnston (FAustMS, FIMA)
School of Environment and Science
Griffith University | Nathan | QLD 4111 | Technology (N44) Room 3.19
T +61 7 373 57748| F +61 7 373 57656 Email 
[email protected]<mailto:[email protected]>
________________________________
From: Peter Johnston
Sent: Thursday, 5 September 2019 8:10 PM
To: Jeremy Theler <[email protected]>; Alessandro Vicini 
<[email protected]>; [email protected] <[email protected]>
Subject: Re: [Gmsh] R: ellipsoid issue

Thanks guys,

Yes it worked for me last week under 4.3.0. Today I downloaded 4.4.1 and it no 
longer works. I am using the Mac version.

Regards,

Peter.

Peter Johnston, Griffith University.
________________________________
From: Jeremy Theler <[email protected]>
Sent: Thursday, September 5, 2019 8:02:01 PM
To: Alessandro Vicini <[email protected]>; Peter Johnston 
<[email protected]>; [email protected] <[email protected]>
Subject: Re: [Gmsh] R: ellipsoid issue

Indeed, see attached png.
I am using latest Git linked against OCE 7.3.0 in GNU/Linux.

On Thu, 2019-09-05 at 08:13 +0000, Alessandro Vicini wrote:

Hello Peter,



I’m using 4.4.0 (under windows), and your script seems to work for me…



A.



Da: gmsh <[email protected]> Per conto di Peter Johnston
Inviato: giovedì 5 settembre 2019 09:58
A: [email protected]
Oggetto: [Gmsh] ellipsoid issue



Hello,



I am trying to create some ellipsoids in 3D and came across this solution:



SetFactory("OpenCASCADE");

Sphere(1) = {0, 0, 0, 0.5};

Dilate {{0, 0, 0}, {1.5, 1, 0.5}} { Volume{1}; }

Characteristic Length{:} = 0.1;

Mesh.Algorithm = 6;

This was posted on the webpage

<https://urlsand.esvalabs.com/?u=http%3A%2F%2Fonelab.info%2Fpipermail%2Fgmsh%2F2018%2F011986.html&e=9895bfa0&h=ea70f4cd&f=y&p=y>

http://onelab.info/pipermail/gmsh/2018/011986.html

,however, the example appears to be generating one-point curves and so the 
meshing is failing.

I am using gmsh 4.4.1. I would be grateful for any suggestions and/or advice. I 
used a similar script before and not had this issue.

Thanks very much,

Peter.



---------------------------------------------------------------------

Associate Professor Peter Johnston (FAustMS, FIMA)
School of Environment and Science
Griffith University | Nathan | QLD 4111 | Technology (N44) Room 3.19
T +61 7 373 57748| F +61 7 373 57656 Email 
[email protected]<mailto:[email protected]>

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Attachment: test-strt-mesh.log
Description: test-strt-mesh.log

Attachment: test-strt.geo
Description: test-strt.geo

Attachment: test-strt.log
Description: test-strt.log

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