[Gmsh] 3D Mesh not generated

[Lakshmi Selvakumaran]

Dear Matthias,

I figured out what the problem was.  I created a physical entity for a
surface but not the volume or other surfaces and hence GMSH did not write
it in the mesh file.
I created a physical entity for the rest of the surfaces and the volume and
it works well now.

Best regards
Lakshmi.


On Thu, Aug 15, 2013 at 11:03 AM, Lakshmi Selvakumaran <
lakshmi.selvakumaran at kaust.edu.sa> wrote:

> Hi Matthias,
>
> Thanks for your reply.  I was able to generate the mesh as well today
> morning when I tried again.  But for some reason, when I save it, the mesh
> file saves only the 2D mesh and not the 3D mesh.  Could you please tell me
> what could be the problem?
>
> Thanks.
>
> Best regards
> Lakshmi.
>
>
>
>
> On Thu, Aug 15, 2013 at 10:51 AM, Zenker, Dr. Matthias <
> Matthias.Zenker at erbe-med.com> wrote:
>
>>  Hi,
>>
>>
>>
>> I can generate and view the mesh without problems.
>>
>> Is „Volume Edges“ or „Volume Faces“ checked under
>> Tools->Options->Mesh->General?  Then you should see your mesh.
>>
>>
>>
>> HTH,
>>
>>
>>
>> Matthias
>>
>>
>>
>>
>>
>> *Von:* Lakshmi Selvakumaran [mailto:lakshmi.selvakumaran at kaust.edu.sa]
>> *Gesendet:* Mittwoch, 14. August 2013 14:19
>> *An:* gmsh at geuz.org
>> *Betreff:* [Gmsh] 3D Mesh not generated
>>
>>
>>
>> Hi,
>>
>>
>>
>> I am trying to generate a simple 3D mesh of a plate of size 50 X 50 X
>> 0.01.  I started with the 2D code of the same plate
>>
>> and it works well.
>>
>> When I tried to extend it to 3D using extrude command, I am unable to see
>> the mesh eventhough my terminal says that
>>
>> 3D mesh has been generated.  Could you please tell me whether my code has
>> any mistake?  Below is the code for your
>>
>> reference.
>>
>>
>>
>> Point(1) = {25, 25, 0, 1.0};
>>
>> Point(2) = {-4, 25, 0, 1.0};
>>
>> Point(3) = {-6, 25, 0, 1.0};
>>
>> Point(4) = {-14, 25, 0, 1.0};
>>
>> Point(5) = {-16, 25, 0, 1.0};
>>
>> Point(6) = {-25, 25, 0, 1.0};
>>
>> Point(7) = {-25, -25, 0, 1.0};
>>
>> Point(8) = {-16, -25, 0, 1.0};
>>
>> Point(9) = {-14, -25, 0, 1.0};
>>
>> Point(10) = {-6, -25, 0, 1.0};
>>
>> Point(11) = {-4, -25, 0, 1.0};
>>
>> Point(12) = {25, -25, 0, 1.0};
>>
>>
>>
>> Line(1) = {1, 2};
>>
>> Line(2) = {2, 3};
>>
>> Line(3) = {3, 4};
>>
>> Line(4) = {4, 5};
>>
>> Line(5) = {5, 6};
>>
>> Line(6) = {6, 7};
>>
>> Line(7) = {7, 8};
>>
>> Line(8) = {8, 9};
>>
>> Line(9) = {9, 10};
>>
>> Line(10) = {10, 11};
>>
>> Line(11) = {11, 12};
>>
>> Line(12) = {12, 1};
>>
>>
>>
>> Line Loop(5) = {1,2,3,4,5,6,7,8,9,10,11,12};
>>
>> Plane Surface(60) = {5};
>>
>> Physical Line(100)={1,3,5,6,7,9,11,12};
>>
>> Physical Line('elec1')={2};
>>
>> Physical Line('elec2')={4};
>>
>> Physical Line('elec3')={8};
>>
>> Physical Line('elec4')={10};
>>
>>
>>
>> Physical Surface(200)={60};
>>
>>
>>
>> Transfinite Line(1)=29;
>>
>> Transfinite Line(2)=3;
>>
>> Transfinite Line(3)=8;
>>
>> Transfinite Line(4)=3;
>>
>> Transfinite Line(5)=9;
>>
>> Transfinite Line(6)=50;
>>
>> Transfinite Line(7)=9;
>>
>> Transfinite Line(8)=3;
>>
>> Transfinite Line(9)=8;
>>
>> Transfinite Line(10)=3;
>>
>> Transfinite Line(11)=29;
>>
>> Transfinite Line(12)=50;
>>
>>
>>
>> Transfinite Surface(60)={1,6,7,12};
>>
>> Recombine Surface(60);
>>
>>
>>
>> Extrude {0,0,1.01} {Surface{60}; Layers{2}; Recombine; }
>>
>>
>>
>> Thanks.
>>
>>
>>
>> Best regards
>>
>> Lakshmi.
>>
>>
>>
>>
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>

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