What does "Some of the geometry intersects itself or is degenerate" mean

robert_miller164 · April 2021

I am new to OnShape. I have a .dwg file exported from Illustrator that OnShape is having trouble with. Part of the file works and part doesn't. I've been trying different things but nothing helps. Even if I bring it in as two different files, the one that works is good but the one that doesn't gives me the above error. I've checked for grouping, non-continuous lines, fill, non fill, etc., etc., etc.
Attached is the .ai file. The "r" in the logo works. The "m" gives me the error above.

Ste_Wilson · April 2021

Not sure about the errors, but I don't think the files have attached. Perhaps you could share a public link to the document with the two files in?

brian_sweet · October 2022

I purchased a dxf graphic and was trying to use it in on shape.

Here is the test:
https://cad.onshape.com/documents/cbbbd6682a0090b36f9c49ba/w/dd767eed9de6522824d3286a/e/6c79d14d242f6b7e8271a0f7

Let me know if anyone if anyone has an idea

eric_pesty · October 2022

Not sure where the problem is exactly but I would start by fixing all the "open" sketch bits. This featurescript is great for this:

https://cad.onshape.com/documents/4fa113c6594cd037bfa214da/v/e5f9020158b188b1ec33530d/e/4eb9378eccc7b7a0261b6f14

Image: https://us.v-cdn.net/5022071/uploads/editor/yh/8hn0nyp05twh.png

Also I've found the issue, it's in this area:

Image: https://us.v-cdn.net/5022071/uploads/editor/5t/ce1w5lwyptes.png

If you box select like this and delete it gets rid of the error:

Image: https://us.v-cdn.net/5022071/uploads/editor/wi/xi87sbdalxei.png

Evan_Reese · October 2022

To make sense of the error message: a curve that intersects itself is something like a single curve that crosses itself like a figure 8 or ichthus. A curve that is degenerate means it's a zero-length curve, like a line with coincident start and end points (I'm less certain about this one, but I think it's something like that). It's possible that you've got a small error in Illustrator, or that it made one in translation.

What does "Some of the geometry intersects itself or is degenerate" mean

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