Ellipse Properties
Ellipse appearance and behavior
Ellipse
properties control the appearance
and behavior of an Ellipse
object. By changing
property values, you can modify certain aspects of the ellipse. Use dot notation to
query and set properties.
an = annotation("ellipse"); c = an.Color; an.Color = "red";
Color and Styling
Color
— Outline color
[0 0 0]
(default) | RGB triplet | hexadecimal color code | "r"
| "g"
| "b"
| ...
Outline color, specified as an RGB triplet, a hexadecimal color code, a color name, or
a short name. The default value of [0 0 0]
corresponds to
black.
For a custom color, specify an RGB triplet or a hexadecimal color code.
An RGB triplet is a three-element row vector whose elements specify the intensities of the red, green, and blue components of the color. The intensities must be in the range
[0,1]
, for example,[0.4 0.6 0.7]
.A hexadecimal color code is a string scalar or character vector that starts with a hash symbol (
#
) followed by three or six hexadecimal digits, which can range from0
toF
. The values are not case sensitive. Therefore, the color codes"#FF8800"
,"#ff8800"
,"#F80"
, and"#f80"
are equivalent.
Alternatively, you can specify some common colors by name. This table lists the named color options, the equivalent RGB triplets, and hexadecimal color codes.
Color Name | Short Name | RGB Triplet | Hexadecimal Color Code | Appearance |
---|---|---|---|---|
"red" | "r" | [1 0 0] | "#FF0000" | |
"green" | "g" | [0 1 0] | "#00FF00" | |
"blue" | "b" | [0 0 1] | "#0000FF" | |
"cyan"
| "c" | [0 1 1] | "#00FFFF" | |
"magenta" | "m" | [1 0 1] | "#FF00FF" | |
"yellow" | "y" | [1 1 0] | "#FFFF00" | |
"black" | "k" | [0 0 0] | "#000000" | |
"white" | "w" | [1 1 1] | "#FFFFFF" | |
"none" | Not applicable | Not applicable | Not applicable | No color |
Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB® uses in many types of plots.
RGB Triplet | Hexadecimal Color Code | Appearance |
---|---|---|
[0 0.4470 0.7410] | "#0072BD" | |
[0.8500 0.3250 0.0980] | "#D95319" | |
[0.9290 0.6940 0.1250] | "#EDB120" | |
[0.4940 0.1840 0.5560] | "#7E2F8E" | |
[0.4660 0.6740 0.1880] | "#77AC30" | |
[0.3010 0.7450 0.9330] | "#4DBEEE" | |
[0.6350 0.0780 0.1840] | "#A2142F" |
Example: "blue"
Example: [0 0 1]
Example: "#0000FF"
FaceColor
— Fill color
"none"
(default) | RGB triplet | hexadecimal color code | "r"
| "g"
| "b"
| ...
Fill color, specified as an RGB triplet, a hexadecimal color code, a color name, or a short name.
For a custom color, specify an RGB triplet or a hexadecimal color code.
An RGB triplet is a three-element row vector whose elements specify the intensities of the red, green, and blue components of the color. The intensities must be in the range
[0,1]
, for example,[0.4 0.6 0.7]
.A hexadecimal color code is a string scalar or character vector that starts with a hash symbol (
#
) followed by three or six hexadecimal digits, which can range from0
toF
. The values are not case sensitive. Therefore, the color codes"#FF8800"
,"#ff8800"
,"#F80"
, and"#f80"
are equivalent.
Alternatively, you can specify some common colors by name. This table lists the named color options, the equivalent RGB triplets, and hexadecimal color codes.
Color Name | Short Name | RGB Triplet | Hexadecimal Color Code | Appearance |
---|---|---|---|---|
"red" | "r" | [1 0 0] | "#FF0000" | |
"green" | "g" | [0 1 0] | "#00FF00" | |
"blue" | "b" | [0 0 1] | "#0000FF" | |
"cyan"
| "c" | [0 1 1] | "#00FFFF" | |
"magenta" | "m" | [1 0 1] | "#FF00FF" | |
"yellow" | "y" | [1 1 0] | "#FFFF00" | |
"black" | "k" | [0 0 0] | "#000000" | |
"white" | "w" | [1 1 1] | "#FFFFFF" | |
"none" | Not applicable | Not applicable | Not applicable | No color |
Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB uses in many types of plots.
RGB Triplet | Hexadecimal Color Code | Appearance |
---|---|---|
[0 0.4470 0.7410] | "#0072BD" | |
[0.8500 0.3250 0.0980] | "#D95319" | |
[0.9290 0.6940 0.1250] | "#EDB120" | |
[0.4940 0.1840 0.5560] | "#7E2F8E" | |
[0.4660 0.6740 0.1880] | "#77AC30" | |
[0.3010 0.7450 0.9330] | "#4DBEEE" | |
[0.6350 0.0780 0.1840] | "#A2142F" |
Example: "blue"
Example: [0
0 1]
Example: "#0000FF"
LineStyle
— Line style
"-"
(default) | "--"
| ":"
| "-."
| "none"
Line style, specified as one of the options listed in this table.
Line Style | Description | Resulting Line |
---|---|---|
"-" | Solid line |
|
"--" | Dashed line |
|
":" | Dotted line |
|
"-." | Dash-dotted line |
|
"none" | No line | No line |
LineWidth
— Line width
0.5
(default) | positive value
Line width of ellipse outline, specified as a positive value in point units. One point equals 1/72 inch.
Example: 0.75
Position
Position
— Size and location
[0.3 0.3 0.1 0.1]
(default) | four-element vector
Size and location, specified as a four-element vector of the form
[x y length height]
. The first two elements specify
the coordinates of the lower-left corner of the smallest rectangle that
enclose the ellipse. The second two elements specify length and height of
the rectangle.
By default, the units are normalized to the figure. The lower-left corner
of the figure maps to (0,0)
and the upper-right corner
maps to (1,1)
. To change the units, use the
Units
property.
Example: [0.2 0.3 0.4 0.5]
Rotation
— Rotation angle in degrees
0
(default) | scalar numeric value
Rotation angle in degrees, specified as a scalar numeric value. Rotation angle is absolute and not relative to previous rotations.
This table shows the resulting annotation rotation for the possible
Rotation
values.
Rotation Value | Resulting Rotation |
---|---|
0 | Unrotated |
Positive scalar value | Rotated counterclockwise by the specified number of degrees |
Negative scalar value | Rotated clockwise by the specified number of degrees |
The anchor point for rotation is the location specified by the first two elements of the
Position
property vector, indicated by the [x y]
values.
Example: 45
Units
— Position units
"normalized"
(default) | "inches"
| "centimeters"
| "characters"
| "points"
| "pixels"
Position units, specified as one of the values in this table.
Units | Description |
---|---|
"normalized" (default) | Normalized with respect to the figure, uipanel, or uitab that
contains the annotation. The lower-left corner of the container maps
to (0,0) and the upper-right corner maps to (1,1) . |
"inches" | Inches. |
"centimeters" | Centimeters. |
"characters" |
Based on the default system font character size.
|
"points" | Points. One point equals 1/72 inch. |
"pixels" | Pixels. Starting in R2015b, distances in pixels are independent of your system resolution on Windows® and Macintosh systems:
On Linux® systems, the size of a pixel is determined by your system resolution. |
All units are measured from the lower-left corner of the figure window.
This property affects the Position
property.
If you change the units, then it is good practice to return it to
the default value after completing your computation to prevent affecting
other functions that assume Units
is set to the
default value.
If you specify the Position
and Units
properties
using name-value arguments when creating the object, then the order of specification
matters. If you want to define the position with particular units, then you must set the
Units
property before the Position
property.
Version History
Introduced before R2006aR2022a: Rotate annotation
Rotate the annotation the specified number of degrees using the
Rotation
property. The anchor point for rotation is the location
specified by the Position
property, so the
Position
property is unaffected by rotation.
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