Hi!
I’m looking for a way to automatically generate grading in Civil using Dynamo. I’ve managed to achieve this manually through “Grading creation tools” by picking a feature line and the target surface, as shown in the picture. Is there any function to achieve this in Dynamo? I haven’t been able to find anything.
Thanks in advance!
Currently there aren’t any nodes for working with grading objects. However, you can achieve similar outcomes by projecting points onto the surface with the desired grade/slope.
Here’s a quick-and-dirty example. It would take much more work to handle all the complexities that grading objects do (e.g., overlapping gradings), but this might be workable for basic scenarios.
I think this would be sufficient for my needs, thanks! 
Now it’s time to find out if I can manage to make it work with multiple objects 
I’ve been looking around for Surface.Mesh but can’t manage to find anything. I tried installing MeshToolKit but no luck. Any chance this function has been renamed or added in a later update? I’m currently running Civil 2024 and Dynamo 2.19.
There is no need to use this node, it is only used for a visual in Dynamo.
It is available in Civil 3D 2025, but with the Civil3DToolkit package in Civil 3D 2024, you have a TinSurfaceExtensions.GetMesh node which does probably the same.
Thank you!
Would I be correct in assuming this is the only section I’ll be needing for rendering in Civil?
I’m currently trying to select two TIN-Surfaces to create a create a grading in-between, I’m guessing the Object.Geometry function isn’t working for this?
No, the Geometry node does not work on Surfaces. I guess you need (to create) a 3D Polyline which follows one of Surfaces, and then start grading from that.
