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<div class="moz-cite-prefix">Here it is.<br>
<br>
Am 17.03.2014 11:14, schrieb Zenker, Dr. Matthias:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi
Steffen,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">I found out: Outlook is wrong.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">I just discovered a small info saying that
Outlook thinks that my_file.msh is insecure and that it has
deleted the attachment (Grrrr). So the fault was on my side,
sorry. Could you try to send it again with a changed
extension, e.g. rename it to my_file.msh.txt?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Matthias<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0cm
0cm 0cm 4.0pt">
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">Von:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
Steffen Becker [<a class="moz-txt-link-freetext" href="mailto:steffenbecker87@yahoo.de">mailto:steffenbecker87@yahoo.de</a>]
<br>
<b>Gesendet:</b> Montag, 17. März 2014 10:55<br>
<b>An:</b> Zenker, Dr. Matthias<br>
<b>Cc:</b> Roman Fratczak; <a class="moz-txt-link-abbreviated" href="mailto:gmsh@geuz.org">gmsh@geuz.org</a><br>
<b>Betreff:</b> Re: [Gmsh] Error : Self intersecting
surface mesh, computing intersections (this could take
a while)<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Hi Matthias,<br>
<br>
I don't know what's wrong here.<br>
When I check my mails, there is a .msh file in the mail
from 12.03.2014 18:21 and also one in the mail from
14.03.2014 12:33.<br>
Finally, I sent you again a .msh file in this mail. Do you
receive it?<br>
<br>
Steffen<br>
<br>
<br>
Am 17.03.2014 09:52, schrieb Zenker, Dr. Matthias:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Hi Steffen,</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">in the mail you mention there is only a geo
file…</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Matthias</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<div style="border:none;border-left:solid blue
1.5pt;padding:0cm 0cm 0cm 4.0pt">
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">Von:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
Steffen Becker [<a moz-do-not-send="true"
href="mailto:steffenbecker87@yahoo.de">mailto:steffenbecker87@yahoo.de</a>]
<br>
<b>Gesendet:</b> Freitag, 14. März 2014 21:09<br>
<b>An:</b> Zenker, Dr. Matthias<br>
<b>Cc:</b> Roman Fratczak; <a
moz-do-not-send="true"
href="mailto:gmsh@geuz.org">gmsh@geuz.org</a><br>
<b>Betreff:</b> Re: [Gmsh] Error : Self
intersecting surface mesh, computing intersections
(this could take a while)</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">Hi Matthias,<br>
<br>
hm, I sent it on 12.03.2014 18:21, don't know what
went wrong.<br>
As you see, I created a ASCII .msh file as explained
in the documentation, so I hope it's correct.<br>
What can I do now?<br>
<br>
Steffen<br>
<br>
Am 14.03.2014 13:05, schrieb Zenker, Dr. Matthias:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi
Steffen,</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">there was no msh file in any of your
mails.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Depending on what is in the msh file,
your steps seem correct to me.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Matthias</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<div style="border:none;border-left:solid blue
1.5pt;padding:0cm 0cm 0cm 4.0pt">
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">Von:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
Steffen Becker [<a moz-do-not-send="true"
href="mailto:steffenbecker87@yahoo.de">mailto:steffenbecker87@yahoo.de</a>]
<br>
<b>Gesendet:</b> Freitag, 14. März 2014 12:33<br>
<b>An:</b> Zenker, Dr. Matthias<br>
<b>Cc:</b> Roman Fratczak; <a
moz-do-not-send="true"
href="mailto:gmsh@geuz.org">gmsh@geuz.org</a><br>
<b>Betreff:</b> Re: [Gmsh] Error : Self
intersecting surface mesh, computing
intersections (this could take a while)</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">Hi Matthias,<br>
<br>
I think you are talking about your mail from
12.03.2014 09:59 ?<br>
In one of my last mails I already sent you a
selfcreated .msh file - but the 3D mesh still
failes. The intersect.pos shows me some
<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">intersections,
but when I check my nodes for duplicates I can't
find any.<br>
</span>Hope my steps are correct:<br>
- create "my_file.msh" with my python script and
check it for nodes duplications -> none found<br>
- open "my_file.geo" in Gmsh<br>
- do "Modules" -> "Mesh" -> "3D"<br>
- receive error message<br>
- merge "intersect.pos" and see some intersections
but I don't know why because the are no duplicated
nodes<br>
<br>
Steffen<br>
<br>
<br>
Am 14.03.2014 09:50, schrieb Zenker, Dr. Matthias:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Hi Steffen,</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">you should be able to generate a
filled volume mesh if you follow my suggestion
from the other mail:</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Write the 2D mesh in gmsh format
(e.g. as outerface.msh, gmsh documentation for
more info on the msh format) and merge that one
instead of the myfile.ply2 file, leaving the
other command lines in your .geo file as they
are. If you then do a 3D mesh, gmsh will take
the 2D mesh as defined in your file. You can
then refine the mesh if you wish.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">HTH,</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Matthias</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<div style="border:none;border-left:solid blue
1.5pt;padding:0cm 0cm 0cm 4.0pt">
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">Von:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
Steffen Becker [<a moz-do-not-send="true"
href="mailto:steffenbecker87@yahoo.de">mailto:steffenbecker87@yahoo.de</a>]
<br>
<b>Gesendet:</b> Mittwoch, 12. März 2014
20:00<br>
<b>An:</b> Roman Fratczak<br>
<b>Cc:</b> Zenker, Dr. Matthias; <a
moz-do-not-send="true"
href="mailto:gmsh@geuz.org">gmsh@geuz.org</a><br>
<b>Betreff:</b> Re: [Gmsh] Error : Self
intersecting surface mesh, computing
intersections (this could take a while)</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">Hi,<br>
<br>
I'm so sorry for all time you spent with my
problem, but now I see: We talk at cross. It's
my fault, I didn't explained correctly what I
need.<br>
I want to receive a *filled* volume mesh.<br>
I created 2 files (steffen.stl and
steffen2.stl) with my python script.<br>
With steffen.stl I successfully could create
such a filled volume mesh as seen in
steffen.msh.<br>
When I try exactly the same with steffen2.stl
then I get the error message in the subject
(and the surface mesh doesn't get filled).<br>
So that's why the .iges file you sent me isn't
what I need.<br>
<br>
Sorry for all this confusion,<br>
Steffen<br>
<br>
<br>
Am 12.03.2014 18:53, schrieb Roman Fratczak:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Steffen,<br>
<br>
I did a volume based on your surface mesh -
see attached IGES (compressed with 7-zip).<br>
After reading it into GMSH, you can create
the 1D, then 2D and finally 3D mesh with no
errors.<br>
<br>
You can do the same using GMSH volume
definition (as already wrote)-> it will
work, as the fundamental faces are plane
triangles.<br>
<br>
Regards<br>
Roman<br>
<br>
<br>
W dniu 12.03.2014 18:27, Steffen Becker
pisze:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Wrong .geo file, sorry!<br>
<br>
Am 12.03.2014 18:21, schrieb Steffen
Becker:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Thank you so far,<br>
<br>
I create both files: .msh and .geo, but
I still get the same error. What's my
mistake?<br>
<br>
Steffen<br>
<br>
Am 12.03.2014 11:48, schrieb Roman
Fratczak:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Hi,<br>
<br>
FYI - you can remove double
vertices/edges (or repair) in mesh in
FreeCad (for exampe).<br>
<br>
regards<br>
Roman<br>
<br>
<br>
<br>
W dniu 12.03.2014 10:17, Steffen
Becker pisze:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Hi Matthias &
Roman,<br>
<br>
I create a nodes- and elements-list
like this:<br>
# nodes:<br>
N1 0,0,0<br>
N2 0,1,0<br>
N3 1,0,0<br>
N4 0,0,1<br>
# elements, which describe
triangles:<br>
E1 1,2,3<br>
E2 2,3,4<br>
<br>
So I do have double edges (here:
between node 2+3). Didn't now that
this is a problem for gmsh, sorry.<br>
<br>
I will try Romans solution asap and
give you a feedback.<br>
Thank you both!<br>
<br>
Steffen<br>
<br>
<br>
Am 12.03.2014 09:59, schrieb Zenker,
Dr. Matthias:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi
Steffen,</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">I am not totally sure
from what you wrote that there are
really no duplicated nodes. In
gmsh, you need to define the
surfaces in a way that
neighbouring surfaces/facets with
a common border use the _<i>same</i>_
nodes to define the border. I
could not see from your file if
there are duplicated nodes, and
would propose that you make sure
that there are really no such
duplications.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">If the meshing still
fails, then this is a question for
the real gurus (Christophe?).</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">HTH,</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US">Matthias</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
lang="EN-US"> </span><o:p></o:p></p>
<div
style="border:none;border-left:solid
blue 1.5pt;padding:0cm 0cm 0cm
4.0pt">
<div>
<div
style="border:none;border-top:solid
#B5C4DF 1.0pt;padding:3.0pt 0cm
0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US">Von:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US"> Roman Fratczak
[<a moz-do-not-send="true"
href="mailto:fratczakroman@o2.pl">mailto:fratczakroman@o2.pl</a>]
<br>
</span><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">Gesendet:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
Mittwoch, 12. März 2014
09:51<br>
<b>An:</b> Steffen Becker<br>
<b>Cc:</b> <a
moz-do-not-send="true"
href="mailto:gmsh@geuz.org">gmsh@geuz.org</a><br>
<b>Betreff:</b> Re: [Gmsh]
Error : Self intersecting
surface mesh, computing
intersections (this could
take a while)</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">Hi Steffen,<br>
<br>
No it is more clear. If you are
working with cloud of point,
then you may use Meshlab for
surface regeneration. There are
many software that are able to
handle in a resonable way the
cloud of points (like rhino3D +
resurf, other). But these are
rather commercial.<br>
<br>
From the other side - try to do
the simplest thing:<br>
<br>
Adjust your python script for
surface creation in order to
save not as PLY but as GMSH
"geo" file using points and
lines<br>
<br>
Point(1)={0,0,0} ;<br>
Point(2)={0,1,0} ;<br>
...<br>
<br>
Line(1) = {1,2};<br>
..<br>
and.. Line Loop & Surface
-> Volume ..<br>
<br>
Then you will get a volume
defined by geometric entities.
In this case is shoul be easier
to create a better mesh on
surface and then on whole
volume.<br>
<br>
Regards<br>
Roman<br>
<br>
<br>
<br>
W dniu 11.03.2014 17:59, Steffen
Becker pisze:<o:p></o:p></p>
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<p class="MsoNormal">Hi,<br>
<br>
@ Roman:<br>
some more details:<br>
I have a point cloud given and
generate the surface mesh by
myself (with python). I don't
know a good algorithm to
create a volume mesh out of
this surface mesh - that's why
I use gmsh for this task.<br>
I also checked my surface mesh
for double vertexes but I
didn't find any. What do you
mean with "double egdes"?
Isn't there always a "double
edge", because two neighbour
facets always have one same
edge?!<br>
<br>
I will send you a .step or
.iges file as soon as I
figured out how to handle the
"No OpenCASCADE model found"
error.<br>
<br>
I'm appending the other
mailing history (with
Matthias) to this mail - sorry
for that "double mailing", I
just forgot one time to "reply
to all" -.-<br>
Anyone else has an idea why
the meshing fails?<br>
<br>
Regards and thank you a lot,<br>
Steffen<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<o:p></o:p></p>
<pre>Hi Steffen,<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>I don't see either why the meshing fails, sorry.<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Matthias<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>-----Ursprüngliche Nachricht-----<o:p></o:p></pre>
<pre>Von: Steffen Becker [<a moz-do-not-send="true" href="mailto:steffenbecker87@yahoo.de">mailto:steffenbecker87@yahoo.de</a>]<o:p></o:p></pre>
<pre>Gesendet: Dienstag, 11. März 2014 14:42<o:p></o:p></pre>
<pre>An: Zenker, Dr. Matthias<o:p></o:p></pre>
<pre>Cc: <a moz-do-not-send="true" href="mailto:gmsh@geuz.org">gmsh@geuz.org</a><o:p></o:p></pre>
<pre>Betreff: Re: [Gmsh] Error : Self intersecting surface mesh, computing<o:p></o:p></pre>
<pre>intersections (this could take a while)<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Oh I'm really sorry, here is the file.<o:p></o:p></pre>
<pre>In addition I sent you also the intersect.pos. I don't understand why exactly<o:p></o:p></pre>
<pre>these surfaces are problematic and the "neighbour surfaces"<o:p></o:p></pre>
<pre>aren't - although they have the same geometry =/<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Am 11.03.2014 12:07, schrieb Zenker, Dr. Matthias:<o:p></o:p></pre>
<pre>Hi Steffen,<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>if you don't provide the myfile.ply2, we cannot see your geometry...<o:p></o:p></pre>
<pre> You can visualize intersect.pos by merging it to your geometry.<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>HTH,<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Matthias<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<p class="MsoNormal">Am
11.03.2014 14:33, schrieb
Roman Fratczak:<o:p></o:p></p>
</div>
<blockquote
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<div>
<p class="MsoNormal">Hello,<br>
<br>
It is possible, that you
will get your geometry in
other format? <br>
In your "ply" there is
already a surface mesh
given. Try maybe use STEP,
IGES,... as input- then it
is easer to recalculate the
surface mesh.<br>
<br>
In case of need of usage of
"a dead mesh" - maybe try
first to remesh it (i.e. in
blender with modification
Remesh) and/or clean it
(removing double vertexes
and edges).<br>
<br>
regards<br>
Roman<br>
<br>
<br>
<br>
<br>
W dniu 11.03.2014 12:13,
Steffen Becker pisze:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Hi,<br>
<br>
in the appendix you find
my model.<br>
Thanks for help!!<br>
<br>
Regards,<br>
Steffen<br>
<br>
Am 11.03.2014 11:47,
schrieb Roman Fratczak:<o:p></o:p></p>
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<blockquote
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<div>
<p class="MsoNormal">Hello
Steffen,<br>
<br>
Yes. You can try to the
first Optimize quality
of tetra, or all of them
(just try).<br>
<br>
I don't know how your
model looks like. If the
elements on the surface
are too big, then the
solid elements (probably
tetragonal) may be with
intersecting edges or
faces. Therefore the
reducing size of element
may help (especially on
the surfaces).<br>
<br>
Or- just share your
model (ply) -in order to
be more precise.<br>
<br>
regards<br>
Roman<br>
<br>
<br>
<br>
W dniu 10.03.2014 18:06,
Steffen Becker pisze:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Hi
Roman,<br>
when you say "enable
option: optimize", you
mean" Tools ->
Options -> Mesh
-> Advanced ->
Optimize quality of
tetrahedra, Optimize
quality of tetrahedra
with Netgen, Optimize
high order meshes
(experimental)" ?<br>
And why is reducing
element size
important? In my case
it is important that
the object has such
"90 degree corners".<br>
<br>
Regards,<br>
Steffen<br>
<br>
Am 10.03.2014 16:55,
schrieb Roman
Fratczak:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Hi
Steffen,<br>
<br>
If your volume is OK
(is really a closed
one) - try to:<br>
<br>
1. Reduce element
size (especially in
a curved shapes)<br>
2. Enable option
"Optimize" - in mesh
options <br>
<br>
Regards<br>
Roman<br>
<br>
<br>
<br>
W dniu 10.03.2014
16:41, Steffen
Becker pisze:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hello
everyone, <br>
<br>
I'm a gmsh beginner
and I want to create
a 3D volume mesh out
of a given
surface-mesh but I
got the error
message as seen in
the subject. You
find my .geo file in
the appendix.
<br>
Can anyone tell me
what I have to do to
create a 3D mesh? I
even can't figure
out where the
intersection are
located (don't know
how to read the
intersect.pos).
<br>
Sorry for my poor
english. <br>
<br>
Regards, <br>
Steffen <br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<o:p></o:p></p>
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<br>
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<o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
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<o:p></o:p></p>
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