2011

you drag horizontally, the camera moves parallel to the XY plane. If you drag vertically, the camera moves along
the Z axis.
If the up direction is not maintained, you can roll the model using the roll ring which is centered around the
pivot point. Use the properties dialog box for the SteeringWheels to control whether the up direction is maintained
or not for the Orbit tool.
To orbit a model with the Orbit tool
1 Display one of the View Object or Full Navigation wheels.
2 Click and hold down the Orbit wedge.
The cursor changes to the Orbit cursor.
3 Drag to rotate the model.
NOTE Use the Center tool to re-center the model in the current view, if you are using one of the Full Navigation
or View Object wheels.
4 Release the button on your pointing device to return to the wheel.
To orbit around an object with the Orbit tool
1 Press ESC to make sure no commands are active and to clear any previously selected objects.
2 Select the objects in the model for which you want to define the pivot point.
3 Display one of the View Object or Full Navigation wheels.
4 Click and hold down the Orbit wedge.
The cursor changes to the Orbit cursor.
5 Drag to rotate the model.
6 Release the button on your pointing device to return to the wheel.
To turn on selection sensitivity for the Orbit tool
1 Display one of the View Object or Full Navigation wheels.
2 Right-click the wheel, and click SteeringWheels Options.
3 In the Options Editor, the SteeringWheels page under the Interface node, select the Center Pivot on Selection
check box in the Orbit Tool section.
4 Click OK.
The extents of any objects that are selected before the wheel is displayed are used to define the pivot point
for the Orbit tool. If no objects are selected, the pivot point used by the Orbit is the one defined by the
Center tool.
166 | Chapter 6 Explore Your Model