Turtle Graphics Output
- The button "Up" is to lift the pen. You cannot draw with your
button "Up."
- The button "Down" is to put your pen down. You can
draw only in this position.
- The button "Left" is to turn the turtle left. However, you
need to know where the turtles' eyes are. If the turtle is going
South, then its left is "East" (your right). If the trutle is
going North, then its left is West. If the turtle is going "East", then
its left is North. If the turtle is going "West," then
its left is South.
- Initially, your current position is at point (0, 0) (the upper left point), and the pen is "Up."
- Lines are visible only inside your applet.
- The turtle is never visible (it's only in your imagination).
However, what it draws is visible, as long as it draws inside
your applet, and with the pen "Down."