
The following figure shows how the polygon is drawn.
As shown in the figure, the polygon starting point is X=40, Y=100 (shown in red). The
first segment (S1) is drawn from the starting point to X=20, Y=220. The second segment
is drawn from X=20, Y=220 to X=160, Y=200. The remaining two segments (S3 and
S4) follow the same pattern. Although provided in this example, the last observation
(X=40, Y=100) is not required. If not provided in the data, the POLYGON statement
draws the last segment (S4) automatically in order to close the polygon.
Drawing Multiple Polygons
For multiple polygons, the POLYGON data ID column specifies a unique identifier for ...