Partially wrapping grid extrusion to surface of a tower

Hi, I’m learning grasshopper and am now trying to model a twisting tower with texture wrapping around the surface of the tower. I made the texture with grid extrusion, and tried to wrap it with surface morph, however it didn’t work out…

what i try to achieve is texture partially wrapping around the tower and exposing some floor plates (as shown in picture). Is there a way to do so? Thank you very much!

twisting (26.1 KB)