Please be patient while the applet is loaded...
Click on the "DEMO" button at the left to start the demonstation. It may take a few moments to open the windows needed for this applet. You should eventually get two new windows: the "Controls" window and the "2D Graph" window.
The center of the square has coordinates c and d that appear in the "Controls" window. Selecting the right arrow next to c will make that coordinate change until it reached its top value, and selecting the left arrow will move it back to its lowest value. Clicking on a double arrow will animate the movement either to the right or to the left.
Controlling d in the same way will move the square up and down on the screen.
When you are done with the demonstration, choose the "Exit Demo" menu item from the "Windows" menu of the "Controls" window. The applet will not exit until you do so.
Just imagine how many thousands of small triangles are required to make the realistic picture of Geri, and how complicated it must be to make all of his different parts work together to simulate the movement of a human being. [an error occurred while processing this directive]