Brep line BLX

Grasshopper
1

Hi,
I’m trying to project points on a Brep using a line intersection. I get points that are not on the line and I don’t understand why.

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Any help is appreciated

2

Hi @Eric_Moreau ,

This is because the points are actually on the line (mathematically speaking) even though your line has a defined length, the Brep | Line intersection component computes this “infinitely” resulting in the unexpected points that appear “off line”.

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Graph Space (You want to use the Brep | Curve (BCX) component instead of Brep | Line Intersection (BLX)):

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BCX vs BLX Result:

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FYI, Please upload you gh file with the input geometries as internalised data in the future as it makes it easier for us all to help.

Thanks!

20230810_BLX_vs_BCX_Intersection_Differences_Response_01a.gh (30.3 KB)

3

Noted, thanks for your explanation

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