[Gmsh] Output File Format

[% BLLXGIK %]

Hi

Regarding the GMSH output file format. I'm wondering if the node ordering is 
always in terms of indices. For example, here it's increasing from 11 to 19:

$NOD
4
11 	0.2139123850310312	0.9819579886789128	0
12 	0.4611267881192866 	1.742802939313218 	0
16 	0.3660211692899985 	1.77370473969925 	0
19 	0.6513380257778627 	1.680999338541154 	0
$ENDNOD

Does it ever occur that the nodes would not be ordered in terms of 
increasing index? For instance:

$NOD
4
12 	0.4611267881192866 	1.742802939313218 	0
19 	0.6513380257778627 	1.680999338541154 	0
16 	0.3660211692899985 	1.77370473969925 	0
11 	0.2139123850310312	0.9819579886789128	0
$ENDNOD

Thanks
Mark

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