Adobe 23101335 User Guide - Page 296

Creating and viewing image maps (ImageReady), Creating image maps

Page 296 highlights

286 CHAPTER 10 Designing Web Pages Linked slices in GIF and PNG-8 format share a color palette and dither pattern. The dither pattern is applied across adjacent slice boundaries to prevent the appearance of seams between the slices. (See "Previewing and controlling dithering" on page 341.) To link slices: 1 Select two or more slices you want to link. Note: If the first slice you select is a user-slice, any auto-slices you link to the first slice become user-slices. If the first slice you select is an auto-slice, any user-slices you select are linked to the auto-slice group. 2 Choose Slices > Link Slices. Each linked set of user-slices is assigned a different color for the slice display graphics in the upper left corner of the slice. This helps to identify all the slices in one set. To unlink user-slices: Do one of the following: • To unlink a user-slice, select the slice, and then choose Slices > Unlink Slices. • To unlink all user-slices in a set, select a slice in the set, and choose Slices > Unlink Set. • To unlink all user-slices in an image, choose Slices > Unlink All. Creating and viewing image maps (ImageReady) Image maps enable you to link an area of an image to a URL. You can set up multiple linked areas- called image map areas-in an image, with links to text files; other images; audio, video, or multimedia files; other pages in the Web site; or other Web sites. You can also create rollover effects in image map areas. The main difference between using image maps and using slices to create links is in how the source image is exported as a Web page. Using image maps keeps the exported image intact as a single file, while using slices causes the image to be exported as a separate file. Another difference between image maps and slices is that image maps enable you to link circular, polygonal, or rectangular areas in an image, while slices enable you to link only rectangular areas. If you need to link only rectangular areas, using slices may be preferable to using an image map. Note: To avoid unexpected results, do not create image map areas in slices that contain URL links- either the image map links or the slice links may be ignored in some browsers. Creating image maps You can create image map areas using an image map tool or a layer. Tool-based image map areas Are created using an image map tool-you drag in the image to define the image map area. You can view and set options for tool-based image maps in the Image Map palette.

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CHAPTER 10
286
Designing Web Pages
Linked slices in GIF and PNG-8 format share a
color palette and dither pattern. The dither pattern
is applied across adjacent slice boundaries to
prevent the appearance of seams between the
slices. (See “Previewing and controlling dithering”
on page 341.)
To link slices:
1
Select two or more slices you want to link.
Note:
If the
rst slice you select is a user-slice,
any auto-slices you link to the
rst slice become
user-slices. If the
rst slice you select is an
auto-slice, any user-slices you select are linked
to the auto-slice group.
2
Choose Slices > Link Slices.
Each linked set of user-slices is assigned a different
color for the slice display graphics in the upper left
corner of the slice. This helps to identify all the
slices in one set.
To unlink user-slices:
Do one of the following:
To unlink a user-slice, select the slice, and then
choose Slices > Unlink Slices.
To unlink all user-slices in a set, select a slice in
the set, and choose Slices > Unlink Set.
To unlink all user-slices in an image,
choose Slices > Unlink All.
Creating and viewing image
maps (ImageReady)
Image maps enable you to link an area of an image
to a URL. You can set up multiple linked areas—
called image map areas—in an image, with links to
text files; other images; audio, video, or multi-
media files; other pages in the Web site; or other
Web sites. You can also create rollover effects in
image map areas.
The main difference between using image maps
and using slices to create links is in how the source
image is exported as a Web page. Using image
maps keeps the exported image intact as a single
file, while using slices causes the image to be
exported as a separate file. Another difference
between image maps and slices is that image maps
enable you to link circular, polygonal, or rectan-
gular areas in an image, while slices enable you to
link only rectangular areas. If you need to link only
rectangular areas, using slices may be preferable to
using an image map.
Note:
To avoid unexpected results, do not create
image map areas in slices that contain URL links
either the image map links or the slice links may be
ignored in some browsers.
Creating image maps
You can create image map areas using an image
map tool or a layer.
Tool-based image map areas
Are created using
an image map tool—you drag in the image to
define the image map area. You can view and set
options for tool-based image maps in the Image
Map palette.