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112
Translating and Rotating Movables
To use the Translation dialog box
1 Select the Movable object that you want to move.
Note Select only one object. You cannot access
the Translation dialog box with multiple objects
selected.
2 In the Property pane, click the Editable tab.
3 Double-click the Translation property.
The Translation dialog box displays.
Chapter 12 Editing 3D Objects
However, unlike the Vect3d data type used with the
Translation property, you are not expected to
calculate an intelligent value to use for the
Orientation value. Instead, WorldUp provides the
Rotation dialog box, which uses Euler angles rather
than quaternions.
Euler angles provide an easy way to achieve the
rotation that you want, but they are inefficient since
there are multiple ways to achieve that rotation. For
example, (0, 180, 0) and (0, -180, 0) result in the
same position. When you use the Rotation dialog
box, WorldUp converts the angles that you set into
a quaternion and the Rotation property is updated
with the converted value.
To use the Rotation dialog box
1 Select the Movable object that you want to
4 Drag the X, Y, and Z sliders as appropriate to
position the object.
You can see the object move in the Development
window as you drag the sliders.
5 To adjust the speed at which the object moves,
drag the slider at the bottom toward Slow or Fast.
6 When you are finished, click Set to apply the
rotate.
Note Select only one object. You cannot access
the Rotation dialog box with multiple objects
selected.
2 In the Property pane, click the Editable tab.
3 Double-click the Rotation property.
The Rotation dialog box displays.
new value and close the dialog box.
Rotating Movables from the Property Pane
You can rotate Movable objects from the Property
pane by modifying the Rotation property value for
the object.
The Rotation property has an Orientation data type,
which is a quaternion. This data type is used for
accuracy and efficiency since, unlike Euler angles,
there is only one way to achieve a result with a
quaternion.
For more information on WorldUp data types, see
the WorldUp Programmer's Guide.
4 Drag the X, Y, and Z sliders as appropriate to
position the object where you want it.
You can see the object rotate in the Development
window as you drag the sliders.