Adobe Photoshop CC 2014 v.14.xx - Manual (Page 354)

Selecting with the marquee tools
Rectangular Marquee
Elliptical Marquee
Single Row or Single Column Marquee
Normal
Fixed Ratio
Fixed Size
The marquee tools let you select rectangles, ellipses, and 1-pixel rows and columns.
1. Select a marquee tool:
Makes a rectangular selection (or a square, when used with the Shift key).
Makes an elliptical selection (or a circle, when used with the Shift key).
Defines the border as a 1-pixel-wide row or column.
2. Specify one of the selection options in the options bar.
Selection options
A. New B. Add To C. Subtract From D. Intersect With
3. Specify a feathering setting in the options bar. Turn anti-aliasing on or off for the Elliptical Marquee tool. See Soften the edges of selections .
4. For the Rectangle Marquee tool or the Elliptical Marquee tool, choose a style in the options bar:
Determines marquee proportions by dragging.
Sets a height-to-width ratio. Enter values (decimal values are valid) for the aspect ratio. For example, to draw a marquee twice
as wide as it is high, enter 2 for the width and 1 for the height.
Specifies set values for the marquee’s height and width. Enter pixel values in whole numbers.
In addition to pixels (px) you can also use specific units such as inches (in) or centimeters (cm) in height and width values.
5. For aligning your selection to guides, a grid, slices, or document bounds, do one of the following to snap your selection:
Choose View > Snap, or choose View > Snap To and choose a command from the submenu. The marquee selection can snap to a
document boundary or to a variety of Photoshop Extras, controlled in the Snap To submenu.
6. Do one of the following to make a selection:
With the Rectangle Marquee tool or the Elliptical Marquee tool, drag over the area you want to select.
Hold down Shift as you drag to constrain the marquee to a square or circle (release the mouse button before you release Shift to keep
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