Make Outlines from curves

Hi all,
I have a bunch of open curves (see picture). What I want to do is to get rid of all the inside curves and leave the outlines, then join the outlines to make a closed curve and make a surface with them. Is there a quicker way to do this than having to just trace the outline manually.

Hello - is the curves are planar and coplanar then CurveBoolean wil be the first thing to try.


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Let me try that. Thank you!

i know this is old, i came across your post trying to find a python version of this rhinoscript that does what you want quickly. it’'s give you and outline of all your curves in one shot.

save in a reliable place where you won’t delete it, drag and drop on rhino window and you’ll get a command called CreateOutline

CreateOutline.rvb (776 Bytes)

@pascal you wouldn’t happen to have a python version for mac by chance? ty

Hm… I’ll see…

See if this works - (583 Bytes)

To use the Python script use RunPythonScript, or a macro:

_-RunPythonScript "Full path to py file inside double-quotes"


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and with that one i am almost migrating some of my core rvb’s to py for working in mac without getting totally disoriented. thank you!

Hi @pascal
I am using a lot this script.
Is there a way to keep source layer?

Any new command / script doing this?