Beam rotules

This is a condition similar to the last one, but it is assigned to the lines that define the beam. It is possible to define if only the initial node of the beam or the end node of the beam or both of them are rotules.

Note 1: Be careful to mesh more than one beam element per line. Every beam element will have its own rotules.

Note 2: To know which point of the line is the beginning and which one is the end, use Utilities->Draw normals->Lines and select the line.