This function enables the user to rotate an object in the display area about the global (or virtual) X-, Y-, and Z-Axes. The options are shown in Figure 15.2.1.

SCREEN AXIS

Rotate an object in the display area according to a specific rotation angle. The screen axes are fixed at all times. They are defined as the following:

·           SCREEN X

Axis direction is from the left to right of the terminal screen.

·           SCREEN Y

Axis direction is from the bottom to the top of the terminal screen.

·           SCREEN Z

Axis direction is from the screen to the user.

VIRTUAL AXIS

Rotate an object about global (or virtual) X-, Y-, and Z-Axes according to an angle.

·           The sliders enable the user to adjust rotation angles.

·           Click on the Apply button to complete the rotation. This function can be repeated as many times as desired.

·           Click on the Reverse button to reverse the rotation. This function can be repeated as many times as desired.

Figure 15.2.1  Rotation dialog box