Line Exercise

Hello Everyone,

First time poster here. I’ve recently learned about Dynamo and I’m working through Anton’s Dynamo for C3D book. While I understand that the book was written for 2025.2 and I’m running 2026, I would believe that this line exercise should still work. I’m importing the lines in from C3D but my Object.Geometry is giving me a point error. I threw the information into Claude simply to understand my issue and it told me that I might have overlapping points. I’m not sure if that is the problem, but if anyone can give me any pointers, I would appreciate it!

I’m looking forward to learning from all of you through this journey.

are you able to upload your dwg file? i can take a look

Thanks for the help, here is the dwg file that I’m working with.

Line Layer Testing.dwg (136.6 KB)

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The error is coming from the ‘0-length’ line at the bottom. (start & end points are the same). If you delete this “line” the error goes away.

I’m not sure what the next step of the line exercise is, but even with the error the next step should work just fine, it will just ignore that 0-length line.

Thanks! It’s the little things…

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