Adobe PHOTOSHOP 5.0, Руководство пользователя, Страница: 147 / 400

139 ADOBE PHOTOSHOP 5.0
User Guide
Using the lasso, polygon lasso, and
magnetic lasso tools
The lasso and polygon lasso tools let you draw
both straight-edged and freehand segments of a
selection border. With the magnetic lasso tool, the
border snaps to the edges of defined areas in the
image. The magnetic lasso tool is especially useful
for quickly selecting objects with complex edges
set against high-contrast backgrounds.
To use the lasso tool:
1 Select and double-click the lasso tool ( ) to
display its Options palette, and select options as
described in the procedure on setting options for
the lasso, polygon lasso, and magnetic lasso tools
on page 141.
2
Drag to draw a freehand selection border.
Freehand selection with
lasso tool
3 To draw a straight-edged selection border, hold
down Alt (Windows) or Option (Mac OS), and
click where segments should begin and end. You
can switch between drawing freehand and
straight-edged segments.
4
To erase recently drawn segments, hold down
Delete until you’ve erased the desired segment.
5
To close the selection border, release the mouse
without holding down Alt/Option.
To use the polygon lasso tool:
1 Select and double-click the polygon lasso tool
( ) to display its Options palette, and select
options as described in the procedure on setting
options for the lasso, polygon lasso, and magnetic
lasso tools on page 141.
2
Click in the image to set the starting point.
3
To draw a straight segment, position the pointer
where you want the first straight segment to end,
and click. Continue clicking to set endpoints for
subsequent segments.
Click to add straight segments.
4 To draw a freehand segment, hold down Alt
(Windows) or Option (Mac OS), and drag.
When finished, release Alt/Option and the
mouse button.
5
To erase recently drawn straight segments,
press Delete. To erase freehand segments, hold
down Delete.