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# Annotation Rectangle Properties

Define annotation rectangle properties

## Modifying Properties

You can set and query annotation object properties using the set and get functions and the Property Editor (displayed with the propertyeditor command).

Use the annotation function to create annotation objects and obtain their handles. For an example of its use, see Annotation Objects in the MATLAB® Graphics documentation.

## Annotation Rectangle Property Descriptions

This section provides a description of properties. Curly braces { } enclose default values.

EdgeColor

ColorSpec | none

Edge color of object'. A three-element RGB vector or one of the MATLAB predefined names, specifying the edge color. The default value is [0 0 0] (black).

FaceAlpha

Scalar alpha value in range [0 1]

Transparency of object background. Defines the degree to which the object's background color is transparent. A value of 1 (the default) makes the background opaque, a value of 0 makes the background completely transparent (that is, invisible). The default value is 1.

FaceColor

{flat} | none | ColorSpec

Color of filled areas.

• ColorSpec — A three-element RGB vector or one of the MATLAB predefined names, specifying a single color for all filled areas.

• none — Do not draw faces. Note that MATLAB draws EdgeColor independently of FaceColor.

• flat — The object uses the figure colormap to determine the color of the filled areas.

LineStyle

{-} | -- | : | -. | none

Line style of annotation rectangle object.

LineWidth

size in points

Width of linear objects and edges of filled areas. Specify in points. 1 point = 1/72 inch. The default is 0.5 points.

Position

four-element vector [x, y, width, height]

Size and location of the object. Specify the lower left corner of the object with the first two elements of the vector defining the point x, y in units normalized to the figure (when Units property is normalized). width and height specify the object's dx and dy, respectively, in units normalized to the figure. The default value is [0.3 0.3 0.1 0.1].

Units

{normalized} | inches | centimeters | characters | points | pixels

Position units. MATLAB uses this property to determine the units used by the Position property. All positions are measured from the lower left corner of the figure window.

• normalized — Interpret Position as a fraction of the width and height of the parent axes. When you resize the axes, MATLAB modifies the size of the object accordingly.

• pixels, inches, centimeters, and points — Absolute units. 1 point = 1/72 inch.

• characters — Based on the size of characters in the default system font. The width of one characters unit is the width of the letter x, and the height of one characters unit is the distance between the baselines of two lines of text.