This function
allows the user to enter the accurate rotation angle. Clicking on this menu,
the program will pop up a dialog box, as shown in Figure 4.9.1.
Figure 4.9.1 User Define Rotate View dialog box
If Virtual
Rotation is selected, fill in the textbox for X, Y, and Z with data. Click
APPLY, the view will rotate by the corresponding angle about the X, Y, and Z
axis. If Screen Rotation is selected, the rotation axis is the screen rotation
axis.
When