[Gmsh] Extrusion with changing mesh size

[David Colignon]

Hi,

after the extrusion, you can modify the characteristic length associated with the newly created points with the command

http://www.geuz.org/gmsh/doc/texinfo/gmsh.html#Characteristic-lengths

Characteristic Length { expression-list } = expression;

     Modify the characteristic length of the points whose identification numbers are listed in expression-list. The new 
value is given by expression.

Regards,

Dave


-- 
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
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On 05/08/10 19:54, D Haley wrote:
> Dear Gmsh-List,
>
> I have created a cylinder by extrusion of four arc-segments, but would like one side of the mesh to have  small elements, and the other end large; Is this possible in gmsh? I cannot see how I can use point weights to do this.
>
>
> Point(1) = {0,0,0,0.5};
>
> Point(2) = {2500,0,0,0.5};
> Point(3) = {0,2500,0,0.5};
> Point(4) = {-2500,0,0,0.5};
> Point(5) = {0,-2500,0,0.5};
>
> Circle(1) = {2,1,3};
> Circle(2) = {3,1,4};
> Circle(3) = {4,1,5};
> Circle(4) = {5,1,2};
>
> Line Loop(5) = {1,2,3,4};
> Plane Surface(6) = {5};
>
> Extrude {0,0,10000} {
>    Surface{6};
> }
>
>
> Thanks.
>
>
>
>
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