I added a third GetTangents line with (1,0,0)

With the (2d) LogSpiral script run, in either Top, Front, or Right view, the modified GetTangents script finds the Horizontal and Vertical tangent points.

(A curiosity, the LogSpiral just needs to be created by the LogSpiral script. The LogSpiral script does not have to be completely closed (Done +Done), but can be finished (Done + Done).)

- Brian