Trim surface

Good afternoon,
Can anyone tell me what is the best way to trim a surface and a curve? I’m trying to keep the area inside the rectangle and remove the rest. (14.5 KB)

Your geometry was messed up in several ways. I removed a duplicate line in the polyline that defines the corrugated surface by replacing these disabled components with the yellow group:

Two corners of the cutting rectangle extend beyond the edge of that corrugated surface: (22.6 KB)

P.S. White group is a different way of finding the correct split fragment closest to center of the rectangle: (18.4 KB) (UPDATED!)

That was really helpful! Thank you!!

I’d like to suggest another way of creating the corrugated surface (light blue group below). (22.8 KB)

Using it is slightly different in several ways.

  • Separate sliders for ‘Width’ and ‘Length’.

  • Replaced ‘Stepover’ slider (I didn’t understand it?) with ‘Wavelength’ slider that sets the distance between peaks.

  • Labeled Value List as ‘Amplitude’ and removed multiplication by ‘Stepover’ slider. I still don’t understand the labels that appear to be angles? (30, 45, 60, 90, 120)

  • Used Dispatch to separate alternate points. (the main idea behind the change)

Thank You!