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Annotation Arrow Properties - Define annotation arrow 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 Positioning Annotations in Data Space in the MATLAB Graphics documentation.

Annotation Arrow Property Descriptions

Properties You Can Modify

This section lists the properties you can modify on an annotation arrow object.

Color

ColorSpec

Color of the object. A three-element RGB vector or one of the MATLAB predefined names, specifying the object's color.

See the ColorSpec reference page for more information on specifying color.

HeadLength

scalar value in points

Length of the arrowhead. Specify this property in points (1 point = 1/72 inch). See also HeadWidth.

HeadStyle

select string from list

Style of the arrowhead. Specify this property as one of the strings from the following table.

Head Style String	Head	Head Style String	Head
none		star4
plain		rectangle
ellipse		diamond
vback1		rose
vback2 (Default)		hypocycloid
vback3		astroid
cback1		deltoid
cback2
cback3

HeadWidth

scalar value in points

Width of the arrowhead. Specify this property in points (1 point = 1/72 inch). See also HeadLength.

LineStyle

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

Line style. This property specifies the line style of the object. Available line styles are shown in the following table.

Specifier String	Line Style
-	Solid line (default)
--	Dashed line
:	Dotted line
-.	Dash-dot line
none	No line

LineWidth

scalar

The width of linear objects and edges of filled areas. Specify this value in points (1 point = ¹/₇₂ inch). The default LineWidth 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). The third and fourth elements specify the object's dx and dy, respectively, in units normalized to the figure.

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 units 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 are absolute units (1 point = 1/72 inch). Units of characters are based on the size of characters in the default system font. The width of one character unit is the width of the letter x, the height of one character unit is the distance between the baselines of two lines of text.

X

vector [X_begin X_end]

X-coordinates of the beginning and ending points for line. Specify this property as a vector of x-axis (horizontal) values that specify the beginning and ending points of the line, units normalized to the figure.

Y

vector [Y_begin Y_end]

Y-coordinates of the beginning and ending points for line. Specify this property as a vector of y-axis (vertical) values that specify the beginning and ending points of the line, units normalized to the figure.

annotation

Annotation Doublearrow Properties

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