SGS_BPOLY

Begin polyline

ACTION:: Indicates that a new chain of lines (could be only one line) is to begin at the specified point. Further end points are added by SGS_APOLY. Any existing buffered polyline is output first.
CALL:: SGS_BPOLY(x,y)
INPUT PARAMETERS:: $<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><mrow> </mrow></math> x, y R S t a r t i n g c o o r d i n a t e s f o r p o l y l i n e .$
GKS EFFECT:: Any existing buffered polyline is output first by calling the GKS polyline routine. Then the starting position of the new polyline is saved.