I have checked similar topics but I couldn’t figure out.
I couldn’t correctly sort the geometries after I used Surface Split.
I would like to extrude only the wanted part (B part, Image) but it is only working when the division of the initial surfaces are less than certain number.
I do not know how to get rid of the red color surfaces in the A part.
Surface split.3dm (124.4 KB) Surface split.gh (16.3 KB)
Could anyone give me advice?
Thanks for your advice in advance.