Thank you,
That fixed the problem!
Regards,
Juan
On 3/5/18 1:29 AM, Christophe Geuzaine wrote:
On 4 Mar 2018, at 18:46, Juan E. Sanchez <[email protected]
<mailto:[email protected]>> wrote:
Hi Christophe,
In my actual structure, it is unknown whether or not it will be split.
There will also be many more volumes with different tags.
I also do not want "air" to contain any of "gate".
How do I get all volumes created from the BooleanDifference into the
same Physical Volume?
Use the list (note the "()") returned by the boolean command :
air()=BooleanDifference{Volume{air}; Delete;}{ Volume{gate};};
Recursive Delete{Volume{unit_box};}
BooleanFragments{ Volume{air()}; Volume{gate}; Delete;}{}
Physical Volume ("gate") = {gate};
Physical Volume ("air") = {air()};
Regards,
Juan
On 3/4/18 11:29 AM, Christophe Geuzaine wrote:
On 4 Mar 2018, at 17:46, Juan E. Sanchez <[email protected]
<mailto:[email protected]> <mailto:[email protected]>>
wrote:
Using the latest Mac OS snapshot, it is the same behavior.
3 sections appear (air, gate, air)
I go into the visibility dialog, visualize both "gate" and "air",
and the last "air" disappears.
I think you are misunderstanding the definition of physical groups.
Your boolean operations create 3 elementary volumes : left, center
and right. You put the left one in the physical group "air" and the
middle one in "gate". (Note that your boolean operations are
unnecessarily complicated - you could just fragment the 2 boxes
instead of doing a difference followed by a fragment.)
So if you select the 2 physical groups, indeed you hide the right
volume...
If I mesh before opening the visibility dialog, all 3 sections get
meshed.
Normal again: by default with the MSH2 format Gmsh only saves
elements that belong to physical groupe.
When I save the mesh, and then open the mesh file, one of the "air"
sections is missing.
Starting over:
If I open the visibility dialog, and select both physical groups,
one of the "air" sections disappear.
Looking in the Elementary entities, it appears that there are 3
volumes. It looks like one of the "air" sections did not get
assigned to the Physical Group.
How do I ensure that both "air" sections get assigned to the same
Physical Group?
Physical Group ("air") = {3,4};
Christophe
Regards,
Juan
On 3/4/18 1:21 AM, Christophe Geuzaine wrote:
Dear Juan,
Not sure what you observe - your file seems to behave normally with
the latest version. Can you try with the latest automated snapshot ?
Christophe
On 3 Mar 2018, at 20:40, Juan E. Sanchez <[email protected]
<mailto:[email protected]>
<mailto:[email protected]>
<mailto:[email protected]>> wrote:
Hello,
I am using the OpenCASCADE factory to create a fairly complicated
structure. In this simplified test case, I run into the issue
where part of the structure disappears when the center of it is
removed.
When GMSH opens the file, it looks correct. Then when I start
manipulating it in the Visibility dialog, half of the "air" volume
disappears.
When 3d meshing half of the "air" volume is also missing.
When I reopen the saved mesh, half the "air" volume is also missing.
Could someone please take a look?
Regards,
Juan Sanchez
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Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine
Free
software: http://gmsh.info | http://getdp.info | http://onelab.info
—
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine
Free software: http://gmsh.info | http://getdp.info | http://onelab.info
—
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine
Free software: http://gmsh.info | http://getdp.info | http://onelab.info
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