Select faces in opening

i just wondered how i can select faces in walls at openings so ican spaint them after
from where i start
Thank you


Hello @hmidahbb …Could you show your graph or take a look here…How to get help on the Dynamo forums…

It can be done many ways and if you take a search in the forum you will probably get many options…here is a quick example



Thank you , which PAckage i found this node Surface,Filter by orientation

its from Clockwork