FUNCTION: find_handle(name) PURPOSE: Returns the index associated with a string name. This function is used by the "TPLOT" routines. INPUT: name (scalar string) name can also be the corresponding integer index to a TPLOT quantity, in which case name will be converted to the string handle. RETURN VALUE: tplot index. (0 if not found) CREATED BY: Davin Larson LAST MODIFICATION: @(#)find_handle.pro 1.14 99/02/26