Creating a surface

Hi guys I want to create a surface from these curves but whenever I try It creates a big one of the whole thing or one of the gaps rather than the parts which I’ve highlighted in the photo, does anyone know a solution? Thank you (trimming does not work it just goes to make the open sections a surface)

You may give it a try with PlanarSrf. If it doesn’t work, Please share your current 3dm file. Thank you.

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Here’s the file PlanarSrf hasn’t been working

FRONT GLASS.3dm (9.6 MB)

Could you please give a try with Grasshopper, and for your reference.
CreatingSrf.gh (426.4 KB)

You also can give it a try with CurveBoolean in Rhino, and fyi.

Thank you so much

Curvboolean does not fix it unfortunately at least not on the one without further outline. it fixes some spots but not entirely. you have quite a bit of a mess in these curves.

use SelSelfIntersectingCrv to select them,

IntersectSelf helps you identify them closer.

for a quick fix since these are polylines you can use Convert, i used these settings

after that PlanarSrf will work

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fwiw, the new rebuild in v9 wip (aka elmo) does a respectable job rebuilding these curves and it’s not a terribly painful process-

the split at kinks feature in Elmo is useful for rebuilding complex curves quickly.
As others have mentioned SelSelfIntersectingCrv is useful to identify curves that need more specific attention.

Bonus for elmo, (and the old rebuild for that matter) if you did not want straight polyline sections as you have drawn, you can explode, and join sections of your curves you want combined, then elmo them to get smooth curves if that would be more in line with your design intent.

bottom of this image shows the curves elmo-ed, after which planar surface works correctly.

Bad or messy curves seem to be the problem ever so often.