link
Link-type objects connect from one mass-like object to another mass-like object. For that reason, each of the links must specify the two mass-like objects that it connects.
A linear link.
- stiffness: stiffness in N/m
- damping: damping in N/(m/s)
- offset: offset for engagement in m
- identifier: unique name
- start vertex: starting vertex
- end vertex: ending vertex
- labels: label strings