Applying A Parametric Script to a Surface

Grasshopper
1

Hello,
I am very new to grasshopper. I have a script that utilizes a photo to create a pattern based on an image. I basically understand how to change, for instance, the heights of the shapes, and shapes themselves, but I don’t know how to approach actually utilizing this to create a parametric solid patterning on a specific surface (i.e. for a building exterior). Reference script and and surface attached.
Thank you!
Grasshopper-Image-Model.gh (667.6 KB)

Ref-Surface.3dm (246.6 KB)

2

Canvas at 23;10;01
Canvas at 23;10;011801×793 130 KB

Grasshopper-Image-Model_re.gh (709.6 KB)

3

Thank you so much! This will be helpful to learn from!