plline: Draw a line 

DESCRIPTION:

    Draws line defined by n points in x and y. 

SYNOPSIS:

plline(n, x, y)

ARGUMENTS:

    n (PLINT, input) :      Number of points defining line. 

    x (PLFLT *, input) :    Pointer to array with x coordinates of points. 

    y (PLFLT *, input) :    Pointer to array with y coordinates of points.