How to merge multiples surfaces tags in one unique tag ?
Hello,
I'm trying to create an unique tag regrouping multiples surfaces tag in order to define boundary indicators in the diffpack file format.
The diffpack format seems to take into account elementary entities and not physical entities so I cannot use :
Physical Surface ("Foo") = {s1,s2..}; //with s1, s2 ... are the tags of my elementary surfaces.
My mesh is composed of about 1500 surfaces, each one has a tag, so I would like to know how to create 3 or 4 different surfaces tags regrouping the 1500 surfaces ? For instance :
Surface(1) = Surface{1:200}; Surface(2) = Surface{201:1000}; Surface(3) = Surface{1001:1500};
And finally in my diffpack file to have 3 or 4 boundary indicators.
Thank you !
Best regards,
Adrien