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Full Version: Joined curve extrudes as rectangle

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From: Michael Gibson
28 Dec 2025   [#7] In reply to [#6]
Hi sos, if you get another case where it's not working as expected please post the .3dm model file here or e-mail to moi@moi3d.com so I can take a look at it.

Thanks, - Michael
From: sos (SAJURCAJU)
28 Dec 2025   [#8] In reply to [#7]
My problem posting images is Firefox. There, when composing a reply I only have three buttons: Post Preview Cancel.
I have switched to Vivaldi, where I also have the Attachements button. Someday soon I'm giving up on Firefox.

I did a set of different radius curves (attached). For shallow curves, the curve is ignored. Deeper curves and I get a straight approximation to the curve (in the solid). 3dm attached.

Attachments:
frame.3dm

Image Attachments:
Selection_047.png 


From: PaQ
28 Dec 2025   [#9] In reply to [#8]
That's likely a display mesh approximation limitation, if you export it (with a forced divided larger than at 2 or less), those arcs seems correctly evaluated.
You can change the mesh angle display in the display option, but even with a tiny angle it wont be as good as the mesh export.

Image Attachments:
arcexport.JPG 


From: PaQ
28 Dec 2025   [#10]
Also if you want a more accurate display, you can maybe rebuild the arc (rebuild command here with 10 points), that should trick the mesher.
(I'm not sure if you still have a perfect math arc doing so ?)

Image Attachments:
rebuildarc.JPG 


From: Michael Gibson
28 Dec 2025   [#11] In reply to [#8]
Hi sos, yes like PaQ writes above that's just a display artifact. It's best to just ignore it.

Also some previous discussion here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=10950.2

- Michael
From: sos (SAJURCAJU)
28 Dec 2025   [#12] In reply to [#11]
This makes tons of sense. Thank you.

Steve
From: Zooen
29 Dec 2025   [#13] In reply to [#8]
Hi sos,
I have been a Firefox user and member of the Moi3D forum for many years. I have never encountered any problems when communicating, or when sending images or files as attachments. I therefore don't think the problem is with Firefox.

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