Obtaining the middle surface from intersecting curves

Greetings,

I am trying to obtain the middle area (as a surface) from 4 intersecting curves. Does anyone know how to do it?

Thanks in advance.

if you are happy to use plugins, assuming the curves are planar, you can oneclick that with Find Regions (from Heteroptera)

there are also other plugins that offer a very similar component

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If you want to do without plugins you can also use BBox and Surface Split. This will produce a number of patches and you’ll need to select the interior one you want:

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Thanks inno!

Hello Daniel,

Thanks a lot!

3. Attach minimal versions of all the relevant files

You didn’t specify if your curves are planar, though it seems like they’d be. I was going to suggest the good ol’ ‘intersect-and-shatter-all’ to then get your boundary region:


However I wasn’t aware of the trick shown by Daniel - love it.

Cheers