.
This shows how to make and A, more accuratly than before. If you have the
A figure from the previous tutorial, remove the
three lines by using
the undo function 
three times, or by selecting them and using the delete function.
the delete function 
.
We will make a better A this time by
putting the line end point on precise grid locations. One way
to do this is by enabling the grid snap and drawing the lines as before. To turn
on the grid snap use
the gridSnap function .
Now start the line drawing function again. Notice that the cross hair is now yellow instead of red. A yellow cross hair means the point is snapped to some special position rather than imprecisely matching whatever screen pixel the cursor happens to be over. With the grid snap on the cross hair snaps to the grid corner nearest to the mouse cursor. Just move the mouse toward the desired grid location until the cross hair jumps there and then press the mouse button. Complete the figure similarly to the previous tutorial.