Wrong Angle

[Gianfranco (Franco)]

Hi guys,

Not sure what is happening, I have 2 lines and calculating the angle in GH. When I check it in Rhino it is different. The angle should be bigger then 90 degrees. Any idea what I am doing wrong?

Angle Between Lines.gh (8.3 KB)

Thanks

[inno]

these are the starting points of your Vectors:

this is the angle you are measuring:

Reverse A:

or swap start/end points of Vector A:

[Gianfranco (Franco)]

Thank you Inno. You are the best!