# Smooth curve from Autocad

**URL:** <https://forum.dynamobim.com/t/smooth-curve-from-autocad/107109>\
**Category:** Revit\
**Created:** [January 9, 2025, 8:18am UTC](https://forum.dynamobim.com/t/smooth-curve-from-autocad/107109 "2025-01-09T08:18:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![cmrlircon.bim](https://avatars.discourse-cdn.com/v4/letter/c/e36b37/32.png) [@cmrlircon.bim](https://forum.dynamobim.com/u/cmrlircon.bim)\
**Post date:** [January 9, 2025, 8:18am UTC](https://forum.dynamobim.com/t/smooth-curve-from-autocad/107109/1 "2025-01-09T08:18:48Z")

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Hi all,

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/c/7/c70ebf1e743f0313e4853d56f7e341fcf3430160.png)

Here i just imported the CAD aligmnent file into Revit and want to create a single polyline for both the lines (Magenta and blue) using dynamo but its not working well. Please give me solution for this one. Thank you  
[test.dyn](https://forum.dynamobim.com/uploads/short-url/6iWurhI0OijuaKqlrfuLltDVGtP.dyn) (15.3 KB)

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**Author:** ![emrullah.yildiz](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/emrullah.yildiz/32/177572_2.png) [@emrullah.yildiz](https://forum.dynamobim.com/u/emrullah.yildiz)\
**Post date:** [January 10, 2025, 1:00am UTC](https://forum.dynamobim.com/t/smooth-curve-from-autocad/107109/2 "2025-01-10T01:00:57Z")

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After you get curves, you can try PolyCurve.ByJoinedCurves node to combine them.

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<div class="post-metadata">

**Author:** ![cmrlircon.bim](https://avatars.discourse-cdn.com/v4/letter/c/e36b37/32.png) [@cmrlircon.bim](https://forum.dynamobim.com/u/cmrlircon.bim)\
**Post date:** [January 10, 2025, 8:16am UTC](https://forum.dynamobim.com/t/smooth-curve-from-autocad/107109/3 "2025-01-10T08:16:17Z")

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I tried but its not working. I want all the lines to be a single polyline

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<div class="post-metadata">

**Author:** ![emrullah.yildiz](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/emrullah.yildiz/32/177572_2.png) [@emrullah.yildiz](https://forum.dynamobim.com/u/emrullah.yildiz)\
**Post date:** [January 10, 2025, 9:09am UTC](https://forum.dynamobim.com/t/smooth-curve-from-autocad/107109/4 "2025-01-10T09:09:00Z")

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Is it possible for you to show your Dynamo graph by showing the result of each node?