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GIMP/Ellipse Selection
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The Basics
thumb|10000px|right|Default ellipse selection tool settings.
File:GIMP-Toolbox-SelectionEllipse-Icon.png Shortcut: E
Ellipse selection is similar to the rectangle one. The only difference is the fact that it has one option less - rounded corners, as it is elliptical selection so for what. As the name suggests it is made for creating elliptical and circle selections, with optional high quality antialiasing.
Modes - determines the way of creating the selection, whether it'll be combined with existing one and such
Antialiasing - causes the boundary of the selection to be drawn smoother
Feather edge - causes the boundary of the selection to be blurred
Expand from centre - expands selection, using starting point as the centre, instead for the corner
Fixed - allows you to modify the actual shape of rectangle
Position - placement of the selection
Size - size of the selection
Highlight - highlights the actual selection, by darkening everything that surrounds it
Guides - select the types of guides shown within of selection
Auto Shrink - shrinks the selection to the nearest rectangular shape available on the image layer
Shrink merged - if this option is enabled, then Auto Shrink will use the pixel information from the visible display of the image, rather than from the active layer
Modes, Antialiasing and Feather Edges
See Selection Tools#Modes for information about Modes
See Selection Tools#Antialiasing for information Antialiasing
See Selection Tools#Feather Edges for information about Feather Edges option
All other options
See Rectangle Selection for information about the tool as everything works completely (or almost completely) the same. The only difference is existence of rounded corners option in Rectangle Selection - there is no need for it here.
Rectangle Selection Free Selection