[Gmsh] Disk tag number when inside a nested For loop?

[Alexis Hotte]

Hi everyone!


I'm trying to create a geometry file that consists of a ring that has a 
'unit cell' (n holes) that is repeated along the circumference of the 
ring to fill it out completely.

I'm at the point where I can do a single unit cell that is completely 
general, but I've been having trouble replicating it along the rest of 
the ring.


This is what I attempted, which just creates a single circle of the 
wrong tag. Would anyone know what I'm supposed to put in the argument 
for the tag of the Disk()? If that's not where the problem lies, would 
anyone have any other idea?

For (1 : N-1 : 1)
For (0 : n : 1)
Disk(news) = {R*Cos(N*beta+n*alpha), R*Sin(N*beta+n*alpha), 0, r, r};
EndFor
EndFor


And what I'm trying to generalize (which I can confirm does what I want):

Disk(6) = {R*Cos(beta), R*Sin(beta), 0, r, r};
Disk(7) = {R*Cos(beta+alpha), R*Sin(beta+alpha), 0, r, r};
Disk(8) = {R*Cos(beta+2*alpha), R*Sin(beta+2*alpha), 0, r, r};

Disk(9) = {R*Cos(2*beta), R*Sin(2*beta), 0, r, r};
Disk(10) = {R*Cos(2*beta+alpha), R*Sin(2*beta+alpha), 0, r, r};
Disk(11) = {R*Cos(2*beta+2*alpha), R*Sin(2*beta+2*alpha), 0, r, r};

(Block of 3 lines is repeated similarly N-1 times around circumference.


Attached is the script I've been working on.


Kind Regards,

Alexis.


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