Data conversion failed from Surface to Rectangle

[daloltii]

hello everyone, im trying to to use the same commands of the rectangular box, but with an existing surface in rhino, but an error appeared and i dont know how i can fix this.

this is what i try to achieve, i started it with a rectangular in grasshopper

but know i changed it to a surface with the same commands but it appeared like this

this is the error msg

and this is the grasshopper file!

p1.gh (21.4 KB)

thank you waiting for your help!

[anon39580149]

You need to internalize data , and R input must be a curve or a flat surface

[daloltii]

how can i do it with a non flat surface?

[anon39580149]

Your surface is missing

[HS_Kim]

Block Pavilion/Building

This could be a quick implementation. [Canvas at 15;47;42] Voxelated_re.gh (185.6 KB)

[daloltii]

thank you, but what i meant i want the surface to be touching the plane just like this.

[Joseph_Oster]

Is there any reason you can’t use the standard GH Offset Surface?

And it appears your surface is not internalized?

I don’t understand your description and thought examining the model might help but it won’t work without these missing pieces.