User Guide
Table Of Contents
CHAPTER 8. TOOLS 66
•
Ctrl
Shift places the tool into straight line mode and constrains the angle of
the created lines to 15 degrees.
8.16 Elliptical Selection
8.16.1 Overview
Elliptical Selection creates circular selection areas. The Selection is constructed
by clicking and dragging over the area that is to be selected.
8.16.2 Elliptical Selection Options
Elliptical Selection Settings
Feather The Feather slider sets the amount of feathering to create around the ren-
dered selection area. Feathering softens the edge of the selection by the speci-
fied number of pixels. See also:Feather Selection.
Antialiasing The Antialiasing button toggles the rendering of aliased edges on the
selection boundary. Antialiasing produces smoother curves and angles and is
recommended for most uses.
Fixed Size / Aspect Ratio The Fixed Size / Aspect Ratio option allows more con-
trolled creation of the selection region. By setting the size to the desired amount,
predetermined areas can be selected with ease. The area can also be specified
as a percentage of the total layer.
Additional Information
Default Keyboard Shortcut:
E
Key modifiers:
• The
Ctrl key is used to subtract from existing selections and constrain the origin
of the selection such that the initial click determines the center of the selection.
Simply release
Ctrl prior to releasing Button1 if non constrained selection sub-
traction is required.
•
Alt is used to move an existing selection.
•
Shift is used to add to existing selections or to constrain the selection shape
such that the height and width remain equal. If needs require addition without
constraint, simply release
Shift prior to releasing Button1.
•
Shift
Ctrl can be used to constrain the selection generation to equal height
and width, as well as forcing the selection to generate from the point first clicked.
It also serves the purpose of intersection selections.
When moving selections beyond the boundaries of the image, the selection
area will be cropped to the image area. Selections cannot exist outside
image areas. Selection movements and changes are kept in the undo
history just in case.