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I have approx 600 points based on top of a surface. I want to be able to generate a 5 meter long line in each of these which is in the normal direction of that surface.

This is to be used for planning boreholes in a tunnel.

Finding the normal of a surface is ok - but the normal of the point on a surface seems to be more difficult. The lines that needs to be generated is created manually on the last image.

 

Hello @sigtill,

I have almost the same question, see the answers in the link.

 

https://knowledge.safe.com/questions/109614/drawing-perpendicular-line-between-3d-point-and-3d.html

Hello @sigtill,

I have almost the same question, see the answers in the link.

 

https://knowledge.safe.com/questions/109614/drawing-perpendicular-line-between-3d-point-and-3d.html

Thanks a lot - will look into it @romanhassas !

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