Systems are referred to as coordinate systems and may be rectangular, cylindrical, or
spherical.
Reference and analysis systems are supported. Reference systems transform geometric
location or input vectors from the global system to a local system. Nodes, mass
elements, forces, and other systems are eligible entities for a reference system.
Analysis systems transform the output system of a node entity. Systems are built and
referenced in the Systems panel.
Note: System collectors collect system entities. A
system collector must exist and be current in order to build a system.