Python Script for extracting the exterior node labels

[hamidfarivar]

Dear colleagues,
I'm wondering if someone can tell me how is it doable to extract the exterior node labels of a meshed model through scripting?
Enclosed please find the corresponding model picture which I'm interested to do so.

Thank you in advance.

 

[hamidfarivar]

Sorry, here is the pic.

 

[neslon]

Maybe you can select the nodes in CAE before the analysis and create a nset.

But using a script in the odb, you know how the radius of the exterior nodes change with the Z coordinate and with this in mind you can select the exterior nodes using a script.

 

[hamidfarivar]

Thanks neslon for your response,

actually, I did exactly the same as you said by scripting. However, I was wondering if there is a more straightforward command for that!
It's a kind of ridiculous if there is no such method to extract the exterior nodes directly, isn't it? I remember Ansys enabled me to do so.

 

[loki3000]

create a nodeset in CAE before the analysis.
otherwise you will need to lookup nodes that are common to only 4 elements (and not 8, if it's a full brick mesh)