Plate.back_side

Plate.back_side(ref_side_index)[source]

Returns the previous side before the reference side, following the right-hand rule with the thumb along the beam’s frame x-axis. This method does not consider the start and end sides of the beam (RS5 & RS6).

Parameters:
ref_side_indexint

The index of the reference side to which the back side should be calculated.

Returns:
frameFrame

The frame of the back side of the beam relative to the reference side.