DCL:GRPH1:SGPACK: User Interface:Explanation of Subroutines: Polyline Primitives
Sets the line index for a polyline drawn with sgplu, sgplv, sgplr.
NumRu::DCL.sgspli(index)
index (I) The line index of a polyline (See Section 1.7. Initial value is 1.)
index = NumRu::DCL.sgqpli().