# Create Surface from TIN files

**URL:** <https://forum.dynamobim.com/t/create-surface-from-tin-files/74787>\
**Category:** Civil 3D\
**Created:** [March 25, 2022, 11:09am UTC](https://forum.dynamobim.com/t/create-surface-from-tin-files/74787 "2022-03-25T11:09:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![smileyours](https://avatars.discourse-cdn.com/v4/letter/s/c4cdca/32.png) [@smileyours](https://forum.dynamobim.com/u/smileyours)\
**Post date:** [March 25, 2022, 11:09am UTC](https://forum.dynamobim.com/t/create-surface-from-tin-files/74787/1 "2022-03-25T11:09:17Z")

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I want to create a surface in Civil 3D using TIN files.

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/e/9/e9ed7cafb0022b6f230ba371988b6c303293fc57.png)

I know how to do i by hand but i would like to do it with dynamo. Can anyone guide me?

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**Author:** ![hosneyalaa](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/hosneyalaa/32/100865_2.png) [@hosneyalaa](https://forum.dynamobim.com/u/hosneyalaa)\
**Post date:** [March 25, 2022, 3:21pm UTC](https://forum.dynamobim.com/t/create-surface-from-tin-files/74787/2 "2022-03-25T15:21:29Z")

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Hi  
See this

> [@TinSurface from 3D Faces](https://forum.dynamobim.com/t/tinsurface-from-3d-faces/73155/3):
>
> Hi @JPhil, To get the edges and vertices from the Faces, you would do something like this: However, it will be a very heavy set of operations to deconstruct the faces into vertices and edges and then build the TIN Surface from COGO Points and breaklines. It will be much faster to build the surface from the faces directly using the API. Here’s some code for you to try out in a Python node. import clr clr.AddReference('AcDbMgd') clr.AddReference('AeccDbMgd') clr.…

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**Author:** ![mzjensen](https://avatars.discourse-cdn.com/v4/letter/m/b77776/32.png) [@mzjensen](https://forum.dynamobim.com/u/mzjensen)\
**Post date:** [July 1, 2022, 6:05pm UTC](https://forum.dynamobim.com/t/create-surface-from-tin-files/74787/3 "2022-07-01T18:05:38Z")

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There is a node for this in the Camber package starting in v4.0.0.

 ![tin surfaces](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/9/a/9a114e85a9fc9ea215cfbae1f03b03936e9125df.png)