How to convert Spline to Arc?

How to convert Spline to Arc?

Anonymous
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Message 1 of 5

How to convert Spline to Arc?

Anonymous
Not applicable

Can anyone tell me how to convert Spline to Arc in AutoCAD?

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Accepted solutions (2)
56,050 Views
4 Replies
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Message 2 of 5

Anonymous
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Hi Please check AutoCAD Civil 3D.

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Message 3 of 5

Anonymous
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Accepted solution

Use FLATTEN command on your Spline, and then EXPLODE it.

 

When Spline converts to Polyline, You will get a lot of vertexes.

So You can reduce the vertexes by some lisp, but your line will be ruined.

 

Message 4 of 5

Alfred.NESWADBA
Consultant
Consultant
Accepted solution

Hi,

 

as long as the spline is just 2D you can use

  • sysvar PLINECONVERTMODE and set it to 1 >>>details<<<
  • command _SPLINEDIT
  • option convert to Polyline

 

That creates a polyline based on arcs.

_FLATTEN from my point of view is too destructive, I only use that as last option of nothing, really nothing else helped.

 

- alfred -

 

------------------------------------------------------------------------------------
Alfred NESWADBA
ISH-Solutions GmbH / Ingenieur Studio HOLLAUS
www.ish-solutions.at ... blog.ish-solutions.at ... LinkedIn ... CDay 2026
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(not an Autodesk consultant)
Message 5 of 5

tm_eichler
Observer
Observer

Thanks, for me worked spline flatten and type no.

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