The SET INVISGEOM <BYELEMENT | ALWAYS | NEVER | QUERY> key-in sets the global display mode for invisible geometry, such as control polygons of B-spline curves and invisible edges of mesh elements.
BYELEMENT — Each B-spline curve element controls the display of its control polygon. Each mesh element controls which of its edges are displayed. This option is the default in DGN workmode; it is not available in DWG workmode.
ALWAYS — Displays the control polygon of each B-spline curve. Displays all edges of each mesh element.
NEVER — Hides the control polygon of each B-spline curve. Hides the invisible edges of each mesh element.
QUERY — Lists the current setting for SET INVISGEOM in the status bar.