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发信人: killest (victor), 信区: Graphics
标  题: PHOTOSHOP(6)-What's New in photoshop 4.0
发信站: 紫丁香 (Fri Mar  6 12:11:43 1998), 转信

New transformation features

Several new transformation commands let you
easily modify selections, layers, or multiple linked
layers. The Layer > Free Transform command lets
you apply a series of transformations to a selection
or layer by dragging handles that appear around
the targeted area. The Layer > Transform >
Numeric command lets you apply a combination
of transformations by entering specific numeric
values.
The new Layer > Transform submenu now con-tains
the transformation commands that previ-ously
were in the Image > Flip, Image > Rotate,
and Image > Effects submenus. You can choose
multiple transformation commands and preview
the cumulative effect before applying the transfor-mation
permanently (this applies to the Layer >
Transform > Scale, Rotate, Skew, Distort, and
Perspective commands only). When you apply
multiple transformations in this way, Photoshop
resamples your image only once, thus better
preserving the original image quality.
The commands in the new Image > Rotate Canvas
submenu let you rotate or flip the entire work
canvas.

Modified Image Size command

The Image > Image Size command includes a
Resample Image option, which replaces the
Constrain File Size option in earlier versions.
When Resample Image is selected, you can change
an image抯 pixel dimensions梩he width and
height of the image in pixels. This feature gives you
greater control over the file size of an image and
over the display size of an image intended for on-screen
distribution. You can also choose the inter-polation
method used to resample an image.

New palettes and palette enhancements

This version of Adobe Photoshop includes two
new palettes梩he Actions palette and the Naviga-tor
palette梐s well as new and revised features in
the Layers, Channels, and Paths palettes that let
you easily work with layers, layer masks, channels,
and paths. The icons at the bottom of these three
palettes have been converted to buttons, which
you can click for such tasks as creating or deleting
layers. The button mode of the Actions palette
replaces the Commands palette, and the Scratch
palette has been removed. The Show/Hide com-mands
for all the palettes now appear directly
under the Window menu. The new Actions palette lets you record and
apply a series of tasks to one or more files. For
more information, see 揂ctions for automating
tasks� on page 10. The new Navigator palette lets you easily change
the view and zoom level of an image. You can
monitor and control the area of the image you
want to view using the thumbnail preview, and
you can change the magnification of the view
using the zoom sliders and zoom buttons, or by
entering a zoom percentage. The Layers palette lets you easily create adjust-ment
layers (see 揂djustment layers for tonal and
color-correction effects� on page 11), and features
a new button for creating layer masks. You can link
ADOBE PHOTOSHOP 4.0 14
What抯 New in Adobe Photoshop 4.0
and unlink layers and their respective layer masks
by clicking the new link icon. Some commands
previously found in the Layers palette menu now
appear in the new Layer menu, which also includes
a number of additional commands (see 揘ew layer
and layer mask features� on page 12). The Channels palette adds the ability to load and
save selections as alpha channels with a click of a
button at the bottom of the palette. The Paths palette contains a new button for
converting selections to work paths. The path tools
have been moved to the toolbox. The Color palette is the new name for the Picker
palette. The Info palette displays expanded information
for a selection or layer that is being transformed.

New tools and tool enhancements

Additions and enhancements include the
following: The program identifier at the top of the toolbox
lets you display information about the Adobe
Photoshop program and contains a link to the
Adobe Photoshop home page on the World Wide
Web. Hidden tools梥uch as the burn and sponge
tools under the dodge tool梒an now be accessed
through tool pull-out menus. Pull-out menus are
indicated by a small triangle to the right of a visible
tool icon. The program features two new tools梩he
polygon lasso tool for making straight-edged and
freehand selections and the type mask tool for
creating selections in the shape of type characters. The move tool is now the only tool you can use
to move pixels in an image. The move tool can
be activated when any other tool is selected by
pressing Command (Macintosh) or Ctrl
(Windows). For more information, see 揘ew
selecting and editing features� on page 11. The path tools梩he pen, direct-selection, add-anchor-
point, delete-anchor-point, and convert-anchor-
point tools梟ow appear in the toolbox. The crop tool is now located as a hidden tool
under the marquee tool. The gradient tool now offers the ability to create
and edit custom gradients (see 揘ew gradient
capabilities� on page 12).

New blending modes, filters, and filter capabilities

Adobe Photoshop 4.0 includes three new blending
modes桟olor Dodge, Color Burn, and Exclusion
(for a detailed description, see Chapter 9, 揚aint-ing,�
in the Adobe Photoshop User Guide). This ver-sion
also includes numerous new filters for creat-ing
and retouching images. For detailed
information on each of the filters, see the Adobe
Photoshop online help.
15

New and modified menu commands

Some of the commands in the command menus
have been rearranged to reflect the new menu
organization in Photoshop. Here are some of the
new and modified commands: File > Import replaces File > Acquire. The new Edit > Copy Merged command copies
pixels using data from all visible layers in an image. New commands in the Edit > Purge submenu
clear information stored by the Undo command,
the Clipboard, and the Pattern and Snapshot
buffers, and free memory. The new commands in the Image > Rotate
Canvas submenu rotate or flip an entire image. The new Layer menu includes various
commands for working with layers (see 揘ew layer
and layer mask features� on page 12). The new Layer > Free Transform command and
Layer > Transform commands apply transforma-tion
effects to selections and layers (see 揘ew
transformation features� on page 13). The Float and Float Controls commands have
been removed. You can now convert selections
directly into new layers using the Layer > New >
Layer Via Cut and Layer Via Copy commands. The new View menu has various new and
existing commands for viewing images; see 揘ew
zooming and viewing features� on page 12. The
Zoom Factor command has been removed. The
new View > Show/Hide Path commands turn on
and off the display of paths in an image. In addi-tion,
the View menu has new commands for
controlling the display of guides and grids. The Window > New Window command has
been replaced by the View > New View command.

New keyboard shortcuts and modifier keys

Adobe Photoshop 4.0 features many new keyboard
shortcuts and modifier keys to simplify common
tasks. They include: To reposition a marquee while drawing it, hold
down the spacebar as you drag the rectangle or
ellipse marquee. To subtract from an existing selection, press
Option (Macintosh) or Alt (Windows) as you
select the area you want to subtract; to select part
of an existing selection, press Option+Shift
(Macintosh) or Alt+Shift (Windows) as you make
the selection. To fill a selection or layer with the foreground
color, press Option+Delete (Macintosh) or
Alt+Backspace (Windows); to fill with the
background color, press Command+Delete
(Macintosh) or Ctrl+Backspace (Windows). To fill a selection or layer with the foreground
color and preserve transparent areas; press
Option+Shift+Delete (Macintosh) or
Alt+Shift+Backspace (Windows); to fill with the
background color and preserve transparent areas,
press Command+Shift+Delete (Macintosh) or
Ctrl+Shift+Backspace (Windows).
For a detailed list of shortcuts, see the Adobe
Photoshop Quick Reference Card.

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※ 修改:．killest 于 Mar  6 16:38:37 修改本文．[FROM: victor.hit.edu.c]
※ 来源:．紫丁香 bbs.hit.edu.cn．[FROM: victor.hit.edu.c]

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