I am trying to find the most outer edge of a self-intersecting curve. And any help would be appreciated.

I have a bunch of scattered points, I have an add sop to make a curve from all the points. I made a group from the first and the last points of the curve and made another curve between them and fused them.

Now, I am trying to find the outer border in order to make a proper polygon and extrude it.

You can see the border I am trying to find drawn in red.

you may try my “get outline” hda. Demo on Vimeo [vimeo.com]
here is the unlock hip example.

Hello zengchen,

thank you. yes, it worked amazing.

Will look into the other examples in your Vimeo account as well. thank you.