How to make facade like this picture?

Grasshopper
1

Hi there.
I want to know how to make facade like this picture.

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%E3%81%9D%E3%81%AE%EF%BC%921137×878 1.42 MB

I wat to map to my model this triangle gradational random giometry.
This is giometory diagram.

%E3%81%9D%E3%81%AE%EF%BC%91
%E3%81%9D%E3%81%AE%EF%BC%91434×758 213 KB

My model facade is this.

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%E3%81%9D%E3%81%AE41256×1018 20.5 KB
%E3%81%9D%E3%81%AE%EF%BC%95
%E3%81%9D%E3%81%AE%EF%BC%951506×1176 16.8 KB

This Surface is inclined,so surface is trapezoid.
And I want to make this surface continuously.
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%E3%81%9D%E3%81%AE%EF%BC%961076×928 523 KB

Thank you for reading.
facade model.3dm (69.4 KB)

2
3

Oh,thank you so mach!