5

After you assign a parameter to a widget, changes you make to that parameter update
the active snapshot in that widget. For example, if the parameter is assigned to a pop-up
menu widget, the change is applied to the selected menu item.
Each parameter in a project can be assigned to only one widget at a time. However, you
can store many values for that parameter as different snapshots that can be accessed
using a pop-up menu or slider widget. (As previously noted, checkbox widgets can only
save two snapshots.)
Because a parameter cannot be controlled simultaneously by two widgets, you cannot
duplicate (or cut/copy and paste) a rig or widget object. Similarly, if you duplicate or copy
and paste an object with rigged parameters, the new object’s parameters are not rigged.
Further, if a parameter is assigned to a widget, that parameter cannot be modified while
you are recording a different widget’s snapshot. For example, if you have a slider widget
controlling a shape object’s color, and you begin recording a snapshot for a different
widget, the shape’s color is not modifiable.
Some parameter types cannot be rigged. Some parameters that use the mini-curve editor
to affect an object over a range (such as the various “over stroke” parameters in the Shape
inspector) cannot be added to a rig or modified while recording a snapshot. If you modify
a parameter that cannot be rigged in edit mode, the change is applied globally—affecting
all snapshots containing that object.
Building a Rig
A rig is a container for widgets. Adding a rig has no effect until you begin to add widgets
and create snapshots for the widgets to control. A project can have an unlimited number
of rigs, and each rig can have an unlimited number of widgets.
To add a rig to a project
Do one of the following:
µ
Choose Object > New Rig (or press Command-Control-R).
481Chapter 10 Using Rigs