Match surface issue

I lofted a surface horizontally and then matched the upper edge to an arc. I then ran a surface fillet on it with some vertical surfaces.

Afterwards, it seems the originally matched surface edge is now off. I can rematch with a trimmed surface so I’m wondering what one does to accomodate this.

MatchSurface.3dm (654.7 KB)

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Are you looking at the edges, or at the render mesh only?

-Pascal

I’m judging by the render mesh. Is that the problem?

The mesh is set to smooth and slower. Even cranking up the mesh in zebra still shows a problem

Further work on this and a few more things:

The lofting creates an undercut on the upper edge of the surface. It also makes an arced edge that must be matched to join

Next step:

Running match surface returned edges that could not be joined.

I then split the lofted surface,shrunk it, and did the same thing with the proxy surface so the edges where the same length.

Yet even after that a match surface will not actually match the surfaces.

MatchedSurf.3dm (239.0 KB)

Hi James - you can use InsertKnot > Automatic a couple of times to geive the surface enough points to Join after MatchSrf, or, use Refine in the MatchSrf settings, but I find that rends to over do the knot insertion.

-Pascal

I changed degree hoping that would do it.

But no go. Then I did the refine match

That finally made it work.

But then the extra points.