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rectangle

Create rectangle with sharp or curved corners

Description

example

rectangle('Position',pos) creates a rectangle in 2-D coordinates. Specify pos as a four-element vector of the form [x y w h] in data units. The x and y elements determine the location and the w and h elements determine the size. The function plots into the current axes without clearing existing content from the axes.

example

rectangle('Position',pos,'Curvature',cur) adds curvature to the sides of the rectangle. For different curvatures along the horizontal and vertical sides, specify cur as a two-element vector of the form [horizontal vertical]. For the same length of curvature along all sides, specify cur as a scalar value. Specify values between 0 (no curvature) and 1 (maximum curvature). Use [1 1] to create an ellipse or circle.

example

rectangle(___,Name,Value) specifies rectangle properties using one or more name-value pair arguments. For example, 'FaceColor','red' specifies a red fill color. You can specify rectangle properties with any of the input argument combinations in the previous syntaxes.

rectangle(ax,___) creates the rectangle in the axes specified by ax instead of in the current axes (gca). The option ax can precede any of the input argument combinations in the previous syntaxes.

example

r = rectangle(___) returns the rectangle object. Use r to modify properties of the rectangle after it is created. For a list of properties, see Rectangle Properties. You can return an output argument with any of the previous syntaxes.

Examples

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Draw a rectangle that has a lower left corner at the point (1,2). Make the width of the rectangle 5 units and the height 6 units. Then, change the axis limits.

rectangle('Position',[1 2 5 6])
axis([0 10 0 10])

Figure contains an axes object. The axes object contains an object of type rectangle.

Draw a rectangle that has a lower left corner at (0,0) and an upper right corner at (2,4). Create the rectangle with curved corners by specifying the curvature as the scalar value 0.2. For data units of equal length along both the x-axis and y-axis, use axis equal.

figure
rectangle('Position',[0 0 2 4],'Curvature',0.2)
axis equal

Figure contains an axes object. The axes object contains an object of type rectangle.

Add a second rectangle that has the shortest side completely curved by specifying the curvature as the scalar value 1.

rectangle('Position',[3 0 2 4],'Curvature',1)

Figure contains an axes object. The axes object contains 2 objects of type rectangle.

Add a third rectangle and use different curvatures along the horizontal and vertical sides. Use a horizontal curvature of 0.5 to make 50 percent of each horizontal side curved. Use a vertical curvature of 1 to make both vertical sides completely curved.

rectangle('Position',[6 0 2 4],'Curvature',[0.5,1])

Figure contains an axes object. The axes object contains 3 objects of type rectangle.

Draw a circle by setting the Curvature property to [1 1]. Draw the circle so that it fills the rectangular area between the points (2,4) and (4,6). The Position property defines the smallest rectangle that contains the circle.

pos = [2 4 2 2]; 
rectangle('Position',pos,'Curvature',[1 1])
axis equal

Figure contains an axes object. The axes object contains an object of type rectangle.

Draw a red rectangle using the same position values to show how the circle fills the rectangular area.

rectangle('Position',pos,'EdgeColor','r')

Figure contains an axes object. The axes object contains 2 objects of type rectangle.

Draw a rectangle and specify the fill color, outline color, and outline width.

rectangle('Position',[1,2,5,10],'FaceColor',[0 .5 .5],'EdgeColor','b',...
    'LineWidth',3)

Figure contains an axes object. The axes object contains an object of type rectangle.

Add a rectangle to the current axes and return the rectangle object, r.

r = rectangle('Position',[0 0 1 1]')

Figure contains an axes object. The axes object contains an object of type rectangle.

r = 
  Rectangle with properties:

    FaceColor: 'none'
    EdgeColor: [0 0 0]
    LineWidth: 0.5000
    LineStyle: '-'
    Curvature: [0 0]
     Position: [0 0 1 1]

  Show all properties

Modify the rectangle after creation using r. Change the fill color, outline color, and outline width.

r.FaceColor = [0 .5 .5];
r.EdgeColor = 'b';
r.LineWidth = 3;

Figure contains an axes object. The axes object contains an object of type rectangle.

Input Arguments

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Size and location of the rectangle, specified as a four-element vector of the form [x y w h]. The x and y elements define the coordinate for the lower left corner of the rectangle. The w and h elements define the dimensions of the rectangle.

All values are in data units.

Example: rectangle('Position',[0.5 0.5 0.3 0.4])

Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

Amount of horizontal and vertical curvature, specified as a two-element vector or a scalar value. Use this property to vary the shape of the rectangle from rectangular to ellipsoidal.

The horizontal curvature is the fraction of the width that is curved along the top and bottom edges. The vertical curvature is the fraction of the height that is curved along the left and right edges.

  • To use different horizontal and vertical curvatures, specify a two-element vector of the form [horizontal vertical]. The horizontal element determines the horizontal curvature and the vertical element determines the vertical curvature. Specify the values between 0 (no curvature) and 1 (maximum curvature). For example, a value of [0 0] creates a rectangle with square edges and value of [1 1] creates an ellipse.

  • To use the same curvature for the horizontal and vertical edges, specify a scalar value between 0 and 1, inclusive. The shorter dimension determines the length of the curvature.

Example: [0.5 0.6]

Example: 0.75

Data Types: double

Axes object. If you do not specify an axes object, then rectangle uses the current axes.

Name-Value Arguments

Specify optional comma-separated pairs of Name,Value arguments. Name is the argument name and Value is the corresponding value. Name must appear inside quotes. You can specify several name and value pair arguments in any order as Name1,Value1,...,NameN,ValueN.

Example: rectangle('Position',[0 0 1 1],'EdgeColor','k','FaceColor',[0 .5 .5])

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 character vector or a string scalar that starts with a hash symbol (#) followed by three or six hexadecimal digits, which can range from 0 to F. The values are not case sensitive. Thus, 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 NameShort NameRGB TripletHexadecimal Color CodeAppearance
'red''r'[1 0 0]'#FF0000'

Sample of the color red

'green''g'[0 1 0]'#00FF00'

Sample of the color green

'blue''b'[0 0 1]'#0000FF'

Sample of the color blue

'cyan' 'c'[0 1 1]'#00FFFF'

Sample of the color cyan

'magenta''m'[1 0 1]'#FF00FF'

Sample of the color magenta

'yellow''y'[1 1 0]'#FFFF00'

Sample of the color yellow

'black''k'[0 0 0]'#000000'

Sample of the color black

'white''w'[1 1 1]'#FFFFFF'

Sample of the color white

'none'Not applicableNot applicableNot applicableNo color

Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB® uses in many types of plots.

RGB TripletHexadecimal Color CodeAppearance
[0 0.4470 0.7410]'#0072BD'

Sample of RGB triplet [0 0.4470 0.7410], which appears as dark blue

[0.8500 0.3250 0.0980]'#D95319'

Sample of RGB triplet [0.8500 0.3250 0.0980], which appears as dark orange

[0.9290 0.6940 0.1250]'#EDB120'

Sample of RGB triplet [0.9290 0.6940 0.1250], which appears as dark yellow

[0.4940 0.1840 0.5560]'#7E2F8E'

Sample of RGB triplet [0.4940 0.1840 0.5560], which appears as dark purple

[0.4660 0.6740 0.1880]'#77AC30'

Sample of RGB triplet [0.4660 0.6740 0.1880], which appears as medium green

[0.3010 0.7450 0.9330]'#4DBEEE'

Sample of RGB triplet [0.3010 0.7450 0.9330], which appears as light blue

[0.6350 0.0780 0.1840]'#A2142F'

Sample of RGB triplet [0.6350 0.0780 0.1840], which appears as dark red

Example: 'blue'

Example: [0 0 1]

Example: '#0000FF'

Outline color, specified as an RGB triplet, a hexadecimal color code, a color name, or a short name. The default RGB triplet 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 character vector or a string scalar that starts with a hash symbol (#) followed by three or six hexadecimal digits, which can range from 0 to F. The values are not case sensitive. Thus, 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 NameShort NameRGB TripletHexadecimal Color CodeAppearance
'red''r'[1 0 0]'#FF0000'

Sample of the color red

'green''g'[0 1 0]'#00FF00'

Sample of the color green

'blue''b'[0 0 1]'#0000FF'

Sample of the color blue

'cyan' 'c'[0 1 1]'#00FFFF'

Sample of the color cyan

'magenta''m'[1 0 1]'#FF00FF'

Sample of the color magenta

'yellow''y'[1 1 0]'#FFFF00'

Sample of the color yellow

'black''k'[0 0 0]'#000000'

Sample of the color black

'white''w'[1 1 1]'#FFFFFF'

Sample of the color white

'none'Not applicableNot applicableNot applicableNo color

Here are the RGB triplets and hexadecimal color codes for the default colors MATLAB uses in many types of plots.

RGB TripletHexadecimal Color CodeAppearance
[0 0.4470 0.7410]'#0072BD'

Sample of RGB triplet [0 0.4470 0.7410], which appears as dark blue

[0.8500 0.3250 0.0980]'#D95319'

Sample of RGB triplet [0.8500 0.3250 0.0980], which appears as dark orange

[0.9290 0.6940 0.1250]'#EDB120'

Sample of RGB triplet [0.9290 0.6940 0.1250], which appears as dark yellow

[0.4940 0.1840 0.5560]'#7E2F8E'

Sample of RGB triplet [0.4940 0.1840 0.5560], which appears as dark purple

[0.4660 0.6740 0.1880]'#77AC30'

Sample of RGB triplet [0.4660 0.6740 0.1880], which appears as medium green

[0.3010 0.7450 0.9330]'#4DBEEE'

Sample of RGB triplet [0.3010 0.7450 0.9330], which appears as light blue

[0.6350 0.0780 0.1840]'#A2142F'

Sample of RGB triplet [0.6350 0.0780 0.1840], which appears as dark red

Example: 'blue'

Example: [0 0 1]

Example: '#0000FF'

Line width, specified as a positive value in point units.

Example: 0.75

Line style, specified as one of the options listed in this table.

Line StyleDescriptionResulting Line
'-'Solid line

Sample of solid line

'--'Dashed line

Sample of dashed line

':'Dotted line

Sample of dotted line

'-.'Dash-dotted line

Sample of dash-dotted line, with alternating dashes and dots

'none'No lineNo line

See Also

Functions

Properties

Introduced before R2006a