Share 'Obtaining the angle that perpendicular frames has rotated - for column in archicad plug in'

Hi, I am using the Archicad plugin and what to create rectangular columns that are perpendicular to a curve. However the only parameter that I can input to achieve this (I think?) is the "rotation angle" in the column settings panel. (see attached image) Therefore I am trying to get the list of angles perp frames has "rotated" to input this as the rotation angle parameter. It seems if the angle…