you can use these for virtual geometry constructions, or just to play around with. the controls are: Compass: The big, dark thing is the point. click and drag it to move it to a point. for more accuracy, press one of the arrow keys while your mouse is over it. The smaller, greyer thing is the pen/pencil. You can make it draw by clicking it, then orienting it and putting your mouse down when you want to draw, and pressing space when you want to stop using it. Also, you can change its distance from the center point by space-clicking and dragging it, or space+arrow keys for greater degree of accuracy. Straight Edge: The two points are the big orange circles. you can click and drag them around, and use the arrow keys on them as well. The little, non-circular thing is the straight-edge pen. you click it, and then move it along the line between the two points and put the mouse down to draw, and press space to stop using it. Also, press "c" to clear the screen. UPDATE: some new tools: The pencil is used for just writing, drawing, or just making single points. click it to pick it up and press space to put it back. The eraser is like the pencil except for that it erases.
