MACROMEDIA FIREWORKS 8-USING FIREWORKS, Руководство пользователя, Страница: 255 / 472

Creating and editing slices 255
Creating nonrectangular slices
Rectangular slices may not be sufficient when you’re trying to attach interactivity to a
nonrectangular image. If you plan to attach a rollover behavior to a slice, for example, and
your slice objects overlap or have irregular shapes, then a rectangular slice may swap unwanted
background graphics along with the swap image. Fireworks solves this problem by allowing
you to draw slices in any polygonal shape using the Polygon Slice tool.
You can also insert a slice on top of the vector path to create irregular slice shapes.
To draw a polygon slice object:
1. Select the Polygon Slice tool.
2.
Click to place the vector points of the polygon. The Polygon Slice tool draws only straight
line segments.
3. When drawing a polygon slice object around objects with soft edges, be sure to include the
entire object to avoid creating unwanted hard edges in the slice graphic.
4.
To stop using the Polygon Slice tool, select another tool from the Tools panel. You do not
have to click the first point again to close the polygon.
To create a rectangular slice or polygon slice from a vector object or path:
1. Select a vector path.
2. Select Edit > Insert > Insert Rectangular Slice or Insert Polygon Slice (depending on the
shape you want).
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Be careful not to overuse polygon slices, because they require more JavaScript code
than similar rectangular slices. Using too many polygon slices can increase web
browser processing time.