as the attachment shows, "inner" hole need to be capped.

but if use polyfill or polycape node, the outside edges are also involved.

what should i do? to cape the hole; or select the "inner hole" edge?

thanks a looooooooot

I had a similar problem. My method was to use the polyfill sop with Patch Group activated. In a primitive wrangle below (with patch in the group)I use this code:



*click on the Create Spare Parameter's button on the right.

Or a hacky sops way I learned a while back.

Divide sop in 'remove shared edges' mode removes all the interior polygons, just leaving the edges on the outside of shapes. This has the effect of turning every open hole into a polygon. This'll look like a mess, but each hole is now a polygon (with a giant super ugly one for the ocean bit).

You can then use a measure sop to calculate the area of these new faces, keep only the small ones, and merge with the original mesh.

olivierth
I had a similar problem. My method was to use the polyfill sop with Patch Group activated. In a primitive wrangle below (with patch in the group)I use this code:

int primpts[] = primpoints(0, @primnum);
int len = len(primpts);
if(len > chi("max_points_per_hole"))
     {
     removeprim(0, @primnum, 1);
     }

*click on the Create Spare Parameter's button on the right.

it really helps!!!!! using point numbers is a good idea wich i never thought.

learned a lot.

mestela
Or a hacky sops way I learned a while back.

Divide sop in 'remove shared edges' mode removes all the interior polygons, just leaving the edges on the outside of shapes. This has the effect of turning every open hole into a polygon. This'll look like a mess, but each hole is now a polygon (with a giant super ugly one for the ocean bit).

You can then use a measure sop to calculate the area of these new faces, keep only the small ones, and merge with the original mesh.

checked the attachment, it does work！！
now i konw how to get the area, whenever i need them.
thanks a loooot.