T2218

T2218 WARNING: T2218 UNABLE TO DEFINE ELEMENT ORIGIN FOR elemtype ELEMENT id
Cause: The specified element has a geometry such that the origin of the element coordinate system cannot be determined. A default origin will be used (average of the corner grid point coordinates).
Action: Check the element connectivity and grid point coordinates. If the element is a quad, check that it is not highly warped.
Remarks: See Autodesk Nastran Reference Guide, Section 4, Bulk Data, for entry format.