plfill: Area fill

Fills the polygon defined by the n points (x[i], y[i]) using the pattern defined by plpsty or plpat. The routine will automatically close the polygon between the last and first vertices. If multiple closed polygons are passed in x and y then plfill will fill in between them.

n (PLINT, input) Number of vertices in polygon. x (PLFLT *, input) Pointer to array with x coordinates of vertices. y (PLFLT *, input) Pointer to array with y coordinates of vertices.