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trackPlotter

Track plotter for bird's-eye plot

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Syntax

tPlotter = trackPlotter(bep)
tPlotter = trackPlotter(bep,Name,Value)

Description

tPlotter = trackPlotter(bep) creates a TrackPlotter object that configures the display of tracks on a bird's-eye plot. The TrackPlotter object is stored in the Plotters property of the input birdsEyePlot object, bep. To display the tracks, use the plotTrack function.

example

tPlotter = trackPlotter(bep,Name,Value) sets properties using one or more Name,Value pair arguments. For example, trackPlotter(bep,'DisplayName','Tracks') sets the display name that appears in the bird's-eye-plot legend.

Examples

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Open Live Script

Create a bird's-eye plot with an x-axis range from 0 to 90 meters and a y-axis range from –35 to 35 meters. Create a track plotter that displays up to seven history values for each track and offsets labels by 3 meters in front of the tracks.

bep = birdsEyePlot('XLim',[0 90],'YLim',[-35 35]);
tPlotter = trackPlotter(bep,'DisplayName','Tracks','HistoryDepth',7,'LabelOffset',[3 0]);

Figure contains an axes object. The axes object with xlabel X (m), ylabel Y (m) contains 2 objects of type line. One or more of the lines displays its values using only markers These objects represent Tracks, (history).

Set the positions and velocities of three labeled tracks.

positions = [30, 5; 30, 5; 30, 5];
velocities = [3, 0; 3, 2; 3, -3];
labels = {'T1','T2','T3'};

Display the tracks for 10 trials. The bird's-eye plot shows the seven history values specified previously.

for i=1:10
   plotTrack(tPlotter,positions,velocities,labels);
   positions = positions + velocities;
end

Figure contains an axes object. The axes object with xlabel X (m), ylabel Y (m) contains 5 objects of type line, text. One or more of the lines displays its values using only markers These objects represent Tracks, (history).

Input Arguments

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Bird’s-eye plot, specified as a birdsEyePlot object.

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: trackPlotter('Marker','*') sets the marker symbol for tracks to an asterisk.

Plotter name to display in legend, specified as the comma-separated pair consisting of 'DisplayName' and character vector or string scalar. If you do not specify a name, the bird's-eye plot does not display a legend entry for the plotter.

Number of previous track updates to display, specified as the comma-separated pair consisting of 'HistoryDepth' and an integer in the range [0, 100]. When you set this value to 0, the bird's-eye plot displays no previous updates.

Marker symbol for tracks, specified as the comma-separated pair consisting of 'Marker' and one of the markers in this table.

MarkerDescriptionResulting Marker
"o"Circle

Sample of circle marker

"+"Plus sign

Sample of plus sign marker

"*"Asterisk

Sample of asterisk marker

"."Point

Sample of point marker

"x"Cross

Sample of cross marker

"_"Horizontal line

Sample of horizontal line marker

"|"Vertical line

Sample of vertical line marker

"square"Square

Sample of square marker

"diamond"Diamond

Sample of diamond marker

"^"Upward-pointing triangle

Sample of upward-pointing triangle marker

"v"Downward-pointing triangle

Sample of downward-pointing triangle marker

">"Right-pointing triangle

Sample of right-pointing triangle marker

"<"Left-pointing triangle

Sample of left-pointing triangle marker

"pentagram"Pentagram

Sample of pentagram marker

"hexagram"Hexagram

Sample of hexagram marker

"none"No markersNot applicable

Size of marker for tracks, specified as the comma-separated pair consisting of 'MarkerSize' and a positive integer in points.

Marker outline color for tracks, specified as the comma-separated pair consisting of 'MarkerEdgeColor' and an RGB triplet, a hexadecimal color code, a color name, or a short color 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 from 0 to F. 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 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

Marker fill color for tracks, specified as the comma-separated pair consisting of 'MarkerFaceColor' and an RGB triplet, a hexadecimal color code, a color name, or a short color 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 from 0 to F. 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 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

Font size for labeling tracks, specified as the comma-separated pair consisting of 'FontSize' and a positive integer in font points.

Gap between label and positional point, specified as the comma-separated pair consisting of 'LabelOffset' and a real-valued vector of the form [x y]. Units are in meters.

Scale factor for magnitude length of velocity vectors, specified as the comma-separated pair consisting of 'VelocityScaling' and a positive real scalar. The bird's-eye plot renders the magnitude vector value as M × VelocityScaling, where M is the magnitude of velocity.

Tag associated with the plotter object, specified as the comma-separated pair consisting of 'Tag' and a character vector or string scalar. The default value is 'PlotterN', where N is an integer that corresponds to the Nth plotter associated with the input birdsEyePlot object.

Output Arguments

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Track plotter, returned as a TrackPlotter object. You can modify this object by changing its property values. The property names correspond to the name-value pair arguments of the trackPlotter function.

tPlotter is stored in the Plotters property of the input birdsEyePlot object, bep. To plot the tracks, use the plotTrack function.

Version History

Introduced in R2017a

See Also

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