how to lighten a surface with a lot of triangulation with dynamo?

Civil 3D
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I need to remove many triangulations, since it was lifted with a drone

2

Hi
May this help you

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3

I am curious the best way to do this in dynamo. Perhaps turning it into a mesh and decreasing triangulation using meshtoolkit? Really not sure.

I would use the “simplify surface” command in OOTB Civil 3D.