Distortion at corners - surface creation between two irregular polygons

[s.murphy9485]

Hi Forum,

I am trying to create a facetted flat surface between two irregular polygons, one upper/outer and one lower/inner. Lofting them doesn’t give me a surface I can use. So I am trying use sweep 2 rails in grasshopper. however I am getting distortions at the corners. it seems the inner lower polygon doesn’t have as many kinks or sub sections. thus when you get to sharp corners there is a distortion. what strategy can I use to create a realistic surface between these two polygons. see files attached. in reality they are inclined walls of a pond.

RUSH BED SHAPES.3dm (382.9 KB)

SHAPES OF RUSH BEDS.gh (17.6 KB)

[leopoldomonzani]

See if this can help.

[René_Corella]

@s.murphy9485

what strategy can I use to create a realistic surface between these two polygons

Though there are several valid ways, starting with what Leopoldo already showed—your question brought a random memory back from this post + a piece of C#:
SHAPES OF RUSH BEDS.gh (12.2 KB)

You can use the control points or tighten alignment with curve divisions:

[s.murphy9485]

SHAPES OF RUSH BEDS - RHINO FORUM.gh (41.3 KB)

Sharing final script