topic Re: Surface Unwrap workaround needed in Inventor Forum

Surface Unwrap workaround needed

stevec781 — Sat, 30 Aug 2025 13:01:04 GMT

Is there a workaround to have curves that are projected onto a surface unwrap onto the flattened surface. I cant see any options to include curves.

All of Inventors competitors can do this so I figure there must be a way to do it.

Thanks

Re: Surface Unwrap workaround needed

kacper.suchomski — Sat, 30 Aug 2025 15:06:59 GMT

The dialog box offers various options for maintaining the source geometry. Doesn't any of these options solve your problem?

Re: Surface Unwrap workaround needed

stevec781 — Tue, 02 Sep 2025 11:25:31 GMT

No the selection area only allows for selection of faces, there is no provision to select curves.

Re: Surface Unwrap workaround needed

kacper.suchomski — Tue, 02 Sep 2025 11:32:53 GMT

What software version are you using?

Re: Surface Unwrap workaround needed

stevec781 — Wed, 03 Sep 2025 14:06:55 GMT

2026

Re: Surface Unwrap workaround needed

kacper.suchomski — Wed, 03 Sep 2025 14:54:16 GMT

@stevec781 wrote:

No the selection area only allows for selection of faces, there is no provision to select curves.

The entire Behavior section is used to select curves and determine their output.

So, doesn't any of these options solve your problem?

Re: Surface Unwrap workaround needed

johnsonshiue — Wed, 03 Sep 2025 23:07:41 GMT

Hi Steve,

I believe there is indeed a workaround. If the curves are on the target surface, you could use Split command and select the curve to split the face. Then use Unwrap command (uncheck "Merge Result Body" option) to flatten the faces. The edges will be retained on the flat surface.

Many thanks!

Re: Surface Unwrap workaround needed

stevec781 — Fri, 05 Sep 2025 09:50:17 GMT

Hi Johnson , Thanks that worked when merge is unselected.

Re: Surface Unwrap workaround needed

stevec781 — Fri, 05 Sep 2025 09:57:26 GMT

No, those options are to control the way the bounding edges unwrap, ie linear forces an edge to remain straight. You cant select projected curves with those options.