Data conversion failed from Surface to Rectangle

I am attempting to apply an example in Grasshopper Tutorial Beginner (Easy) to my project and hit a snag early on at connecting the Surface component to the Boundary input of the Voronoi component.
The closed rectangular curves included on the Layer named Voronoi_Boundary in the interior of the boundary define holes for mounting hardware.
I’m thinking of adding attractor points on the curves on the Layer named Boundary_Offset_for_My_Points to make the cells smaller at the edges of the part
Any help is appreciated.

Rhino 5 SR14 64-bit
(5.14.522.8390, 05/22/2017)
grasshopper_0.9.76.0 (5.6 KB)
Voronoi_01.3dm (4.7 MB)

Is this what you are after?

No need to use the surface as boundary. That boundary input in the Voronoi component must always be a rectangle, but is it optional. (7.8 KB)

Hi Shynn,

I don’t know yet.
I couldn’t run your .gh file because I’m using Rhino 5. I plan on upgrading to Rhino 7 ASAP.
I’ll try to decode the image you posted and give it a whirl.
In the meantime, please see attached my latest attempt; this time following this video tutorial:Grasshopper Voronoi on Surface.
I turned points off in my naivety. I’ll turn them back on and attempt to pick usable points to see if that helps to confine the Voronoi extrusion to, preferably, the curve offset from the edges internal an external of the part.
Thanks for your help.

Voronoi_03.3dm (15.6 MB) (50.5 KB)

Sorry man, if you don’t know what you want I can’t help you. (13.0 KB)

Actually, you helped enormously. I ran your gh file despite the warnings about backward compatibility and it worked. Very much appreciated!
Thanks! ~ David

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