[Gmsh] Characteristic Length

[Christophe Geuzaine]

Jehanzeb Hameed wrote:
> Hi,
> 
> I cant understand how "Characteristic Length" works in gmsh. I specify 4 
> points (which are corner of a square, bottom left = (-1,-1) , top right 
> = (1,1)  ). The points have characteristic length 0.5  . I mesh this 
> domain. I cant figure out what the relationship between radius of the 
> circumscribed circle and characteristic length is. The documentation 
> says this:
> 
> "The size of the mesh elements will then be computed by linearly 
> interpolating these characteristic lengths on the initial mesh".
> 
> I cant understand between what values is the size of the mesh elements 
> being interpolated. How can I find this out?


With a char length of 0.5, you should get (about) 4 division per side of 
your square (4*0.5=2, which is the length of one side of the square).




> 
> Thanks,
> -Jehanzeb
> 
> 
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine