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发信人: killest (victor), 信区: Graphics
标  题: PHOTOSHOP(63)- Editing
发信站: 紫丁香 (Wed Apr 15 08:33:27 1998), 转信

        Applying a specific transformation
The commands under the Transform submenu let
you apply specific transformations to a selection
or layer. When you use the Scale, Rotate, Skew,
Distort, or Perspective command, Photoshop pre-views
the effect and surrounds the selected area
with a bounding border. You drag the handles at
the corners and sides of the bounding border to
manipulate the selection or layer according to the
specified transformation.
You can manipulate a selection or layer using sev-eral
transformation commands in succession
before applying the cumulative transformation.
For example, you can choose Layer > Transform >
Scale, drag a handle to scale, and then choose
Layer > Transform > Distort, drag a handle to dis-tort,
and press Return (Macintosh) or Enter (Win-dows)
to apply both transformations.
To scale, rotate, skew, distort, or apply perspective:
1 Do one of the following: To transform part of a layer, select that area of
the layer. To transform an entire layer, make the layer
active and make sure that nothing is selected.
2 Choose Layer > Transform > Scale, Rotate,
Skew, Distort, or Perspective.
3 Drag the handles to achieve the desired effect.
4 To apply additional transformations, repeat
steps 2 and 3.
5 Press Return (Macintosh) or Enter (Windows)
to apply the cumulative transformation. Press Esc
to cancel the transformation.
Original Green leaf layer rotated
To flip or rotate a selection or layer:
1 Do one of the following: To transform part of a layer, select that area of
the layer. To transform an entire layer, make the layer
active (see揢sing the Layers palette� on page 246),
and make sure that nothing is selected.
2 Choose Layer > Transform and, from the
submenu, choose one of the following commands: Rotate 180 � to rotate by a half-turn. Rotate 90 � CW to rotate clockwise by a quarter-turn. Rotate 90 � CCW to rotate counterclockwise by a
quarter-turn. Flip Horizontal to flip horizontally, along the
vertical axis.
CHAPTER 8 186
Editing Flip Vertical to flip vertically, along the hori-zontal
axis.
Original selection Selection on green leaf
layer flipped
Freely transforming and previewing
effects
When you use the Free Transform command to
scale, rotate, or skew a selection, Photoshop pre-views
the effect and surrounds the selected area
with a bounding border. You use the handles at the
corners and sides of the bounding border to
manipulate the selection.
To freely transform a selection or layer:
1 Do one of the following: To transform part of a layer, select that area of
the layer. To transform an entire layer, make the layer
active and make sure that nothing is selected.
2 Choose Layer > Free Transform.
3 To transform the selection or layer, do one or
more of the following: To move the selection or layer, position the
pointer inside the bounding border (the pointer
turns into a black arrowhead) and drag. To scale, drag a handle. Press Shift as you drag a
corner handle to scale proportionately. The
pointer turns into a double arrow when you posi-tion
it over a handle.
Drag handle to scale Scaled image To rotate, move the pointer outside of the
bounding border (the pointer turns into a curved,
two-sided arrow), and then drag. Press Shift to
constrain the rotation to 15 � increments.
Rotate
187 To distort freely, press Command (Macintosh)
or Control (Windows) and drag a handle.
Distort freely To distort symmetrically about the center of the
selection or layer, press Option (Macintosh) or Alt
(Windows) and drag a handle.
Distort symmetrically To skew, press Command+Shift (Macintosh) or
Control+Shift (Windows) and drag a side handle.
The pointer turns into a white arrowhead with a
small double arrow when you position it over a
side handle.
Skew To apply perspective, press Command+Option
+Shift (Macintosh) or Control+Alt+Shift
(Windows) and drag a corner handle. The pointer
turns into a gray arrowhead when you position it
over a corner handle.
Perspective applied
To undo the last handle adjustment, choose Edit >
Undo.
4 Press Return (Macintosh) or Enter (Windows)
to apply the transformation. To cancel the trans-formation,
press Esc.
Transforming a selection or layer
numerically
To scale, rotate, skew, or move a selection or layer
precisely, you use the Transform > Numeric com-mand.
This command lets you enter specific
numeric values for the transformation.
To transform a selection or layer numerically:
1 Do one of the following: To transform part of a layer,
select that area of
the layer. To transform an entire layer, make the layer
active (see 揢sing the Layers palette� on page 246),
and make sure that nothing is selected.

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※ 修改:．killest 于 Apr 15 08:33:41 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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