[Gmsh] Identification numbers

[Philippe Ackerer]

Hi,
I want to mesh a cylinder (see attached file) and need the identity 
numbers of the bottom, top and sides (will be used to define boundary 
conditions).
Can you explain the numbering that appears in out[]  (see attached file) ??
Thanks
Best regards and congratulations for Gmsh,
Philippe

-- 
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Philippe ACKERER
LHyGeS UMR 7517 UdS-CNRS-Engees
1, rue Blessig
67000 STRASBOURG
tel +33 (0)368 850 561
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-------------- next part --------------
// Meshing a cylinder

r1=19.0;
Lcw=0.20;
Lc1 = 0.40;
teta=2.0*3.14159/8.0;


// Then we define some points and some lines using these variables:
Point(1) = { 0.0, 0.0  , 0.0 , Lcw};
Point(2) = { r1, 0.0   , 0.0 , Lc1};
x1=r1*Cos(teta);
y1=r1*Sin(teta);
Point(3) = { x1 , y1 , 0.0 , Lc1};

Circle(1) = {2,1,3};


Line(10) = {1,2};
Line(11) = {3,1};
 

Line Loop(21) = {10,1,11}; Plane Surface(22) = {21};

//Extrusion over h
h = 15.0;
out[]=Extrude {0,0,h} {Surface{22}; Layers{ {3,5,3}, {0.20,0.80,1.00} };Recombine; };
Printf(" Top=%g", out[0]);
Printf(" Lateral=%g", out[1]);
Printf(" Lateral=%g", out[2]);
Printf(" Lateral=%g", out[3]);