Adobe illustrator 10 Manuale Utente

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Adobe Illustrator Help
Transforming and Distorting Shapes 
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To flatten a compound shape into a path or compound path:
With the selection tool, select the compound shape to expand.
Do one of the following:
Click Expand in the Pathfinder palette.
Choose Expand Compound Shape from the Pathfinder palette menu.
Creating compound paths
compound path contains two or more paths that are painted so that holes appear where 
paths overlap. Compound paths act as grouped objects; to select part of a compound 
path, use the direct-selection tool or the group-selection tool. You can manipulate the 
shape of individual components of a compound path, but you cannot change appearance 
attributes, styles, or effects for individual components, and you cannot manipulate 
components individually in the Layers palette.
Use the Compound Path command to create paths that have holes where the original 
objects overlapped (such as the interiors of the letters and g). When you define objects 
as a compound path, all objects in the compound path take on the paint and style 
attributes of the backmost object in the stacking order. 
Note: If you want more flexibility in the compound path creation, you can create a 
compound shape and then expand it. (See 
.) 
To create a compound path using the Compound Path command:
Select the paths you want to include in the compound path. 
Choose Object > Compound Path > Make. 
The resulting shape appears in the Layers palette as a <Compound Path>.
Adjusting the appearance of compound paths
You can specify whether a compound path is a non-zero winding path or an even-odd 
path. Both the non-zero winding fill rule and the even-odd fill rule use mathematical 
equations to determine if a point is outside or inside a shape. The even-odd rule is more 
predictable: every other region within an even-odd compound path is a hole, regardless of 
path direction. Illustrator uses the non-zero winding rule as the default rule. Photoshop 
and Macromedia Freehand both use the even-odd rule by default, so compound paths 
imported from either of these applications will use the even-odd rule.