Polyline points x,y,z axis

Hi everyone! I am new with Rhino and have a question about polylines. I am trying to make a simple figure but the problem is that the first point is drawn on the floor, the second one is drawn on the roof and so on… so my figure is going crazy. Which setting do I need to change to draw a polyline in the plane I need? Thank you!

Hello - set a construction plane where you would like to draw, (CPlane command) and then set object snaps to Project


  • your polyline should stay put on the plane.


Thank you so much for your help! This really helped me to advance.