TinVolumeSurface elevation analysis

I’m doing a TinvolumeSurface elevation analysis.
Here is what I get in plan view:

What I would like to do is extract a solid for each color band (where the thickness is defined by the interval in the elevation analysis).

So far, I haven’t found any node in the existing packages that allows me to extract the boundary of each interval in order to create both the surface and the corresponding solid.

:backhand_index_pointing_right: Has anyone an idea or a workflow to achieve this?

Thanks in advance!

You can use any one of these nodes to get contours that match the elevation banding intervals and then generate / modify solids using them.

I tried this but can’t get it to work with a volume surface, only a regular TIN Surface.

Somewhat off topic. But I seem to be unable to select a TIN Volume Surface with the Civil Object by Namenode. @zachri.jensen is this something you are aware of?

Maybe you can paste your Volume Surface into empty TIN Surface and do exctraction from there?

This did indeed work.

I did run into a problem though. It does create most of the contours but seemingly not all of them. In my picture below it has created contours for a rock cut without issue but a major fill area is left out. No errors from Dynamo that tell me what is wrong, it just isn’t there. Other areas with the same contour elevation are created however.

EDIT: Seems the issue was just with the visuals in Dynamo. Looking back at Civil 3D it had actually created Polylines for all areas.

1 Like

If you have a large surface and/or want to avoid duplication in the file, you can also create a data shortcut for the volume surface and then data reference it into a new file. This will allow you to work on the surface as if it is a normal tin surface without the pasting / rebuilding.

We haven’t implemented anything specific for volume surfaces yet, so it should just be returned as a Surface. Is that what you’re seeing?

This doesn’t seem right. Can you share a snip of your graph that led to this?