Draws a line (a direct path between two points) to the screen. The version of
Pline with four parameters draws the line in 2D. To color a line, use the
Pstroke function. A line cannot be filled, therefore the
Pfill function will not affect the color of a line. 2D lines are drawn with a width of one pixel by default, but this can be changed with the
PstrokeWeight function. The version with six parameters allows the line to be placed anywhere within XYZ space. Drawing this shape in 3D with the z parameter requires the P3D parameter.