2009

Table Of Contents
Viewpoint dialog box(see Editing Viewpoints for more information on this).
5. Choose Lock Aspect Ratio if you want the aspect ratio of the thumbnail to match that of the main
navigation view and remain matching even when the thumbnail dialog box is resized. This will usually
give gray strips either to the top and bottom, or to either side of the thumbnail view. See Aspect Ratio
for more information on aspect ratio.
6. Choose Refresh to redraw the thumbnail based on the current setting. Thumbnail drawing uses
software OpenGL and so can take a couple of seconds for large models.
Using a SpaceBall
Note:
The term SpaceBall is used as a generic term for all 3D motion controllers from 3Dconnexion,
including the SpaceBall, SpaceMouse and SpaceTraveler.
A SpaceBall can be used as an alternative to the mouse to move around the main navigation view. The
behavior of the SpaceBall corresponds to the currently selected Navigation Mode. If no mode is selected
on the Navigation Mode toolbar or if the selected mode is not a valid mode for the SpaceBall, then a
default navigation mode will be used. This enables the user to navigate with the SpaceBall whilst
performing other operations with the mouse. The default navigation mode can be set in the Options Editor
dialog box.
The speed of navigation is sensitive to the amount of force applied to the SpaceBall. However, the user
can also adjust the speed of translation and rotation by applying a factor to each of these in the Options
Editor dialog box. These options are offered in addition to the adjustments that can be made using the
Control Panel for the device which is supplied by the SpaceBall manufacturer with the installation.
Setting the SpaceBall behavior:
1. On the Tools menu, click Global Options.
2. Expand the Interface node in the Options Editor dialog box, and click the SpaceBall option.
The SpaceBall page is displayed.
Navigating
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