getFixedNodes command

getFixedNodes()

Returns a list of node tags that are fixed (via the fix command) in the domain.

The command iterates over all single-point constraints (SP_Constraint) in the domain, extracts the node tags, sorts them, and removes duplicates.

Return Value

A list of integers containing the tags of nodes that have at least one fixed DOF. Returns an empty list if no fixed nodes are found.