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Chapter 4. Work with Objects > Using aliases and duplicates

Using aliases and duplicates

In LiveMotion, when you make an alias of an object, it becomes an equal partner with its parent object; they become co-aliases. Any style or shape changes that are made to any alias are duplicated automatically in all of the other aliases it is linked to. If you make an alias for a text object and then edit the words in that object or change their typographic attributes, those changes will also occur in all its other aliases.


Figure .


Why make aliases instead of using the Duplicate command? Three good reasons: Because using aliases helps to reduce the file size of a composition; it speeds up screen redraw; and it speeds up editing.


Figure .


To make an alias of an object:

METHOD 1

1.
Select an object.


Figure .


2.
Choose Edit menu >Make Alias(Command-M/Ctrl-M).

or

Windows only: Right-click in the composition window and choose Make Alias from the context menu.

The alias will land right on top of the original object (now its co-alias).

METHOD 2

1.
Choose any selection tool (except the Pen-selection tool) or choose the Transform tool (E).

2.
Option-Shift-drag/Alt-Shift-drag an object (the pointer will turn into a double arrowhead)(Figs. 1–3).

▸ If Object menu > Maintain Alignment is turned on and you edit text that's grouped with an object, that object will resize, as needed, to accommodate the new text, and any aliases that are associated with that object will also resize. See page 59.

If you unlink an alias and then edit the object, it will no longer change or be affected by its former alias(es) in any way.

To break an alias link:

1.
Choose a selection tool (V, A, or U) or the Transform tool (E).

2.
Select one of the aliases you want to unlink.

3.
Choose Edit menu >Break Alias (Command-Option-M/Ctrl-Alt-M).

or

Windows only: Right-click in the composition window and choose Break Alias from the context menu (Figs. 12).

Note: Before duplicating an object, read about aliasing, which is sometimes preferable.


Figure .


Relinking

After you break an alias, you can convert the object back into an alias again by choosing Edit menu >Undo > Undo Break Alias (that is, if it's still available on the submenu) or by selecting the object and one or more of its former aliases and choosing Edit menu >Make Alias again.


To duplicate an object:

METHOD 1

1.
Choose a selection tool.

2.
Click on the object you want to duplicate.


Figure .


3.
Choose Edit menu >Duplicate (Command-D/Ctrl-D).

or

Windows only: Right-click in the composition window and choose Duplicate from the context menu.

The duplicate will land right on top of the original object.


Figure .


METHOD 2

1.
Choose a selection tool.

2.
Option-drag/Alt-drag the object you want to duplicate (Figs. 34).

▸ Hold down Shift while dragging to constrain the object to the horizontal or vertical axis.Just be sure to press Option before Shift, otherwise you'll create an alias instead of a duplicate.


Figure .


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