Hello engineers, Im trying to see how I can create a dynamo script thats so versatile at helping me in varrying surfaces as I try to rebalance cut and fill between my original ground and the proposed surface, is it possible to create a dynamo script that can create curfaces from polylines existing i…

@bvs1982 , thank you for the summary! :man_bowing: @oliverkisera , in short, yes, it is possible in Civil 3D . :+1: Let’s give you some starting blocks. This is an example of extracting all polylines from 2 layers, converting them into COGO points, adjusting their elevation and then creating a sur…

I don’t mean this in a bad way, but your question is really hard to read (at least to me) because of the absence of periods and commas. Well, not really commas, but more periods followed by Capital letters :sweat_smile:. I think AI is a great tool to help with that. For example; Hello engineer…

yes exactly AI captured everything, any node or any suggestions even rocommended packages apart from arknance and camber that can help me accomplish this will be highly appreciated, Thanks a lot

Hi @oliverkisera seems like a civil3d thing, could you give your post a category, so we exackly know whats is about

This is great, I really really appreciate your help in enabling me to get this dynamo script, the thoughful arrangement of the nodes is on another level, Thanks again for sharing your knowledge, Ive tested it and it works as intended, it gets all the polylines in the layers I need, convert them to p…

You are welcome, @oliverkisera ! :blush: In addition, if you are going to be iterating on your surface design, then you probably want to use Dynamo Player. To prepare your graph for Dynamo Player, you need to set nodes as Input nodes. I also recommend renaming those input nodes and adding notes so …

Thanks a lot for sharing these extra nodes and tips, it works great and very much happy about it

Hello, I have one more issues with some objects on a layer that i want to use to create surface, in that layer tere are two circular polylines and one circle, in this node called polycurve.points, its reporting warning with words, “Asked to convert non-convertible types”, and in the node called obj…

and lets say after I have created multiple surfaces, do we have a node/nodes that can now combine multiple surfaces into one surface, more like pasting 3 or 4 surfaces to form one surface that we can called the exising ground, thanks in advance if such a node is available

@oliverkisera , I recommend that you search the forum. This thread seems relevant to what you want to do: [image] Creating tin surface and paste other surfaces Civil 3D Hi @bano35R3K , I don’t think there is a way to honor the settings for surface creation, un…

Polycurve.Points can only process polycurves. If you have circles in the layer, then you need to either change the drawing or add a function to separate the geometries. If the circle represents a spot elevation, then you could extract points using Circle.CenterPoint. You could separate the geomet…

Dynamo script that can create multiple surfaces from polylines in different layers and also change Z values of those polylines

Civil 3D

ISECnico April 20, 2026, 12:56am 11

@oliverkisera , I recommend that you search the forum. This thread seems relevant to what you want to do:

Topic		Replies	Views
One-Click Surface solution Civil 3D	25	652	January 12, 2026
Creating tin surface and paste other surfaces Civil 3D geometry , dynamo	15	1989	June 7, 2023
Civil3D Surface to Dynamo Surface problem Civil 3D	4	815	September 18, 2022
Need 50 polylines converted to surface Civil 3D dynamo	19	2143	September 29, 2020
Create surface from polylines in multiple layers and the surfaces not to overlap, and then set color to appear as hatched shading for the different surfaces Civil 3D	2	75	May 21, 2026

Dynamo script that can create multiple surfaces from polylines in different layers and also change Z values of those polylines

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