Shape Selection Tools
There are three shape selection tools. These tools plus the
Use this tool to define a rectangular or square selection.
This tool is used to create a freeform selection. The edge of the selected region will follow the mouse cursor as it is dragged around the canvas. The shape will automatically be closed with a straight line from the current cursor location back to the start point.
Create elliptical or circular selections with this tool.
The basic use of these tools is straightforward: click and drag the mouse cursor to create a selection shape. Releasing the mouse button relinquishes editing mode and fixes the selection.
Once a selection has been cast, editing operations (including effects and adjustments) are confined to the active selection. This can be used to limit drawing to a specific area of the layer.
To edit an area outside the current selection it is necessary to either add the new area to the selection or to deselect the active selection.
Editing operations are confined to the active selection. It is not possible to edit outside an active selection.
When a selection is active it will be surrounded by a dashed moving outline to indicate the area (known as the "dancing ants"). If one of the selection tools is active, a blue highlight will also be applied to the selected area to aid identification. This highlighting is removed when another tool is chosen to improve color accuracy.
Once cast, selections may be moved, resized, and rotated (see Move Tools for more information).
To stop using an active selection it needs to be deselected.
To deselect via the keyboard, press
To deselect using the mouse cursor, click the menu item or the
There are five selection modes which alter how successive selections interact. The modes are Replace, Add, Subtract, Intersect and Invert ("xor").
A mode can be chosen from the
This is the default selection mode. Any new selection made will replace any and all previous selection(s).
A new selection is added to any previous selection(s). This allows multiple areas to be selected at once. Any other selection tool can be used to make additions.
The following selection was made by drawing a circle selection using the
To add to an existing selection, hold down the
In this mode, any newly defined areas are removed from previously cast selection(s). This mode allows a selection to be modified or reduced in ways not possible by making a single selection. Any other selection tool can be used to make subsequent removals.
For example, if a circular selection is made with the
To remove portions from an existing selection, hold down the
This quarter-circle selection was created by casting a large circular selection then a smaller square selection with
This acts like
This mode allow the creation of complex selections like this one, made using a combination of the