It is now time to draw the outline of the beam. For that, select the Area tool
) in the toolbar at the top of the applet, and click with the mouse (using the left mouse button) on the six corners of the beam. A thin dark green line is showing the area that you create. To terminate your input, right click anywhere within the applet. to better see what you have accomplished so far, let’s remove for a moment the background image by pressing on the
button. You now should have something on screen that looks more or less what is shown in Figure 4.
Figure 4: Outline of the beam with background image desactivated