Surface Max and Min Elevations

Is there an easy way to get the maximum and minimum elevation of a surface in civil 3d?

surface

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And in the Arkance Systems Node Library:

image

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Can you provide some input for how to use the TinVolumeSurfce nodes from a selection type? They don’t work using the current node I am trying to use because the VolumeSurface calls out from the Drop Down node as a Surface not a TinVolumeSurface.

Where is that dropdown node from?

It is an Arkance Node I believe. But I have not been able to get the tin volume surface nodes to work even with a standard Surface By Name node.

Got it. Try this.

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Can you change the solution back to the other one? The above reply isn’t really the solution to the original problem.