Offset Curve in Grasshopper

Grasshopper
1

Hello everyone!

I recently had a problem with a closed planar curve that I need to offset towards the inside. What happens is that it gets broken after -0.537 of distance.

Please check the file to see the problem. I also added another very similar curve that offsets just fine as a comparison.

What do you think is wrong?

Thanks for looking!!

unnamed.gh (7.8 KB)

2

Use flip curve

image
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3

I reparamaterized both curves and then evaluate them from 0 to 1 and had no problem.

screenshot_01
screenshot_011094Ă—783 69.7 KB

It looks like Segheir’s solution also works, but I wonder what the Flip component does that makes it work. Flip certainly would not have occurred to me as something to try.

1 Like
4

I also thought it works both ways the same, but it does not.

imagen
imagen1066Ă—513 44.1 KB

1 Like
5

Thank you all for the replies and screenshots!!

As @anon39580149 stated, Flip Curve solved the issue but @Birk_Binnard I didn’t understand why it works. What’s the logic behind it? I would never thought to use Flip Curve if @anon39580149 didn’t mention it, to be honest.

Yes @Baris, it doesn’t work. Thank you for sharing!