Still, I think that a direct reference in a hLegend.EntryContainer.NodeChildren(1).Icon property would have helped in 99% of all cases, so that we wouldn’t need to pass through the Transform object. This works very well in HG1: Default is None, which means using rcParams["legend.shadow"] (default: False). Line (data2) hLine1 = plot(1:5); To plot two lines and display the legend in the present chart. 'upper center', 'lower center', 'center left', 'center right' no legend being drawn. is shown in the legend and the automatic mechanism described above locations defined so far, with the minimum overlap with other drawn matlab,plot,legend,movie. IB-Matlab: InteractiveBrokers-Matlab connector, EODML: EODHistoricalData-Matlab connector. L=legend(off): This is used to delete the legend and its customization from the plot. Specify the legend descriptions in the order that you plot the lines. One can suppress a legend entry for a line object h by executing h.HandleVisibility='off' or h.Annotation.LegendInformation.IconDisplayStyle='off'.However, both actions also prevent the curve from appearing in Matlab's Plot Browser user interface, and thus display of … created for a scatter plot legend entry. legend crea una leyenda con etiquetas descriptivas para cada serie de datos trazada. To plot two lines and display the legend in the present chart. I get the same plot as the previous answer. Example #3 Next, what if we don’t want our labels to be on the top right but in some other place on the plot. ... Bug and workaround in timeseries plot – Matlab's internal hgconvertunits function has a bug that affects timeseries plots. The spacing between columns, in font-size units. (via plot for instance), simply call this function with an iterable LineCap: 'none' The pad between the axes and legend border, in font-size units. In this article, we will learn how to put Legends to the plots created in MATLAB. Overlay: [1×1 TriangleStrip] PickableParts: 'visible' NormalData: [] After each call to scatter3 after, you use the legend('-DynamicLegend'); command to signal to MATLAB that the legend entries will be forthcoming... you're going to specify them in the 'DisplayName' flag. Learn more about plot, plotting, legend MATLAB Legend guide for details. HandleVisibility: 'on' Visible: 'on' For full control of which artists have a legend entry, it is possible The legend's background patch edge color. AlignVertexCenters: 'on' is shown in the legend and the automatic mechanism described above For the labels, the legend uses the text from the DisplayName properties of the data series. WideLineRenderingHint: 'software', >> get(hLegendIconLine(1)) % Marker SelectionHighlight: 'on' PickableParts: 'visible' LineWidth: 0.5 But it is perfectly fine to use a legend associated with a subplot as an overall legend. VertexData: [3×2 single] this method. The location of the legend can be specified by the keyword argument loc.Please see the documentation at legend() for more details.. OverlayAlpha: 0.65 After each call to scatter3 after, you use the legend('-DynamicLegend'); command to signal to MATLAB that the legend entries will be forthcoming... you're going to specify them in the 'DisplayName' flag. Legend function in MATLAB allows us to put our label in place of our choice. The strings Default is None, which means using rcParams["legend.frameon"] (default: True). LineJoin: 'round' Cree una figura con una gráfica de líneas y una gráfica de dispersión. Just store the desired legend handles in a variable and pass the array to legend. Visible: 'on'. center of the axes (or figure) the following keywords can be used: The number of columns that the legend has. The alpha transparency of the legend's background. Learn more about figure, plot, legend MATLAB To put the legend in the best location in the bottom right selection by defining a label starting with an underscore. R2014b or newer). numel(plots)),1,2),ones(numel(plots)*2,1),2)) The code above is also generalized for more the one data series, although I guess that there are cases where this will fail to give the right solution and will need some fine tunings. Doesn’t legend location have “center” Does the LEGEND get relocated when zooming into a plot in MATLAB 7.1.0 (R14SP3) Does the legend in the figure move when I print it in MATLAB 7.0.1 (R14SP1) Legend at a desired location on a plot; Does the legend in the printed figure become larger after I manually move it in MATLAB 7.0.1 (R14SP1) Default is no title (None). Size: 6 Fun: try playing with negative values for the icon and the label and see what happens 🙂 1. Learn more about plotting MATLAB ColorData: [4×1 uint8] Add Legend. The length of the legend handles, in font-size units. int or float or {'xx-small', 'x-small', 'small', 'medium', 'large', 'x-large', 'xx-large'}, matplotlib.legend.Legend.get_legend_handler_map(). HTML tags such as or are accepted. EdgeColorData: [4×1 uint8] is not sufficient. artists. For example, to put the legend's upper right-hand corner in the NormalBinding: 'none' Podcast 294: Cleaning up build systems and gathering computer history. The call signatures correspond to three different ways how to use In this article we will show you some examples of legends using matplotlib. SpecularColorReflectance: 1 Default is None, which means using rcParams["legend.labelspacing"] (default: 0.5). for each item in it, and will complain if there are more legend items than plotted objects. Style: 'circle' The xlabel and ylabelcommands generate labels along x-axis and y-axis. hLine1 = plot(1:5,'o-b'); If None (default), the current 1 ⋮ Vote. Selected: 'off' Default is None, which means using rcParams["legend.framealpha"] (default: 0.8). I’ve used an ‘empty’ subplot position for a legend location from time to time, using the 'Position' property to place it. As we have learned in our previous articles, we can create vector plots in MATLAB using the ‘plot’ function. The legend automatically updates when you add or delete data series from the axes. Not all kinds of artist are supported by the legend command. Icon: [1×1 LegendIcon] I have 2 plots where the first one has dots and the second one is a line plot. The legend () function in MATLAB/Octave allows you to add descriptive labels to your plots. placement of the legend. hLegend.ItemHitFcn = myLegendItemHitFcn(src,evnt); In most cases, when you use name-value pairs, you must specify the labels in a cell array, such as legend({'label1','label2'},'FontSize',14).. Use the Legend object. The vertical space between the legend entries, in font-size units. The string 'best' places the legend at the location, among the nine locations defined so far, with the minimum overlap with other drawn artists. absolute font size in points. Legend: [1×1 Legend] The legend call wants one plotted object (line, marker, etc.) Plotting five sets of data on one axes and creating the legend entries for each of them is more complicated but straightforward. 3. The strings defined in the legend command are assigned in order of the plots being generated. MATLAB displays only one legend per axes. In addition, note that hLegend.EntryContainer.NodeChildren(1).Icon.Transform.Children.Children returns an array of objects (Marker and LineStrip) and you can only set the Size property of the Marker, not the LineStrip (duh). Learn more about app designer, plot, legend, multiple, matlab, axes MATLAB Code: a = linspace(0,2*pi); y = sin(a); plot(a,y) hold on y1 = sin(2*a); plot(a,y1) legend('sin(a)','sin(2*a)') Output: In the above example, the legend for the two lines is shown in the top right corner of the plot, one line depicting the values for the function sin(a) and the other line depicting the values for the function sin(2a). Label: [1×1 Text] Whether round edges should be enabled around the FancyBboxPatch which a legend entry for a PathCollection (scatter plot). legend associates strings with the objects in the axes in the same order that they are listed in the axes Children property. The fontsize of the legend's title. 'upper left', 'upper right', 'lower left', 'lower right' This argument allows arbitrary Browse other questions tagged matlab plot matlab-figure legend or ask your own question. For each line plotted, the legend shows a sample of the line type, marker symbol, and color beside the text label you specify. It would appear that if you’re using these properties in a function or loop it is important to call drawnow before attempting to utilise any of the LegendEntry objects, otherwise they will not exist yet and you will get errors. Add a legend with a description for each chart. Learn more about legend, plot, graph Color: [0 0 0] If the value is numeric the size will be the The axis equalcommand allows generating the plot with the same scale factors and the spaces on both axes. ColorBinding: 'object' Learn more about plot, legend Optionally, specify the legend location using one of the eight cardinal or intercardinal directions, in this case, 'southwest'. hLegendIconLine = hLegendEntry.Icon.Transform.Children.Children; % a LineStrip object in our example. A list of labels to show next to the artists. The legend's background color. 1. This is a 2-element numeric array specifying the minimal size of the legend entries’ icon and label. Default is None, which means using rcParams["legend.facecolor"] (default: 'inherit'). R2017a introduced AutoUpdate to legend objects which broke pretty much all of the functionality I got from manipulating PlotChildren. VertexIndices: [] same height, set to [0.5]. The fractional whitespace inside the legend border, in font-size units. Learn more about plot scatter loop legend MATLAB, Statistics and Machine Learning Toolbox For some reason, accessing the displayed graphic line in LegendEntry‘s Icon is not simple. This argument is only used if prop is not specified. I just want it to show the second data, because the first data is a patch. Bbox coordinates are interpreted in the coordinate system given by Plot legend customization – Matlab plot legends and their internal components can be customized using a variety of undocumented properties that are easily accessible. Let’s start with a simple Matlab plot with a legend: hold all; Legend for several matrix plots. figure.bbox (if Figure.legend). hLegend = legend([hLine1,hLine2], 'Location','SouthEast'); For example: Note: This way of using is discouraged, because the relation between numel(plots)),1,2),ones(numel(plots)*2,1),2)) The code above is also generalized for more the one data series, although I guess that there are cases where this will fail to give the right solution and will need some fine tunings. when you do not pass in any extra arguments. Plotting a Legend on a Graph. line, = ax.plot([1, 2, 3]) line.set_label('Label via method') ax.legend() Specific lines can be excluded from the automatic legend element selection by defining a label starting with an underscore. makes up the legend's background. 5. hLegend = legend([hLine1,hLine2], 'Location','SouthEast'); HitTest: 'off' Texture: [0×0 GraphicsPlaceholder] To get all the original graphic objects together, in a single array, we could use one of two mechanisms (note the different order of the returned objects): % Alternative #1 Explicitly defining the elements in the legend. I want to have some kind of loop which can be used in the Legend command for the plotting so that I don't have to write the Legend for the figures. HitTest: 'on' Axes or Figure coordinates, depending on which legend is called. ans = Entries are due June 1, 2020. How to modify the legend in MATLAB ® graphs. I have some problems using legend in a plot. Three years ago I explained how we can use a couple of undocumented hidden properties of the legend in order to add a legend title (the legend object had no Title property back then – this was only added in a later Matlab release, perhaps as a result of my post). default font size. Naturally, we can modify this order by creating the legend py passing it an array of handles that is ordered differently (see the documentation of the legend function). Specify the legend labels as inputs to the legend function. place the legend at the center of the corresponding edge of the In the case of a line with markers, for example, hLegendIconLine would be an array of 2 objects: a LineStrip object and a separate Marker object. The relative size of legend markers compared with the originally VertexData: [3×1 single] Default is None, which means using rcParams["legend.edgecolor"] (default: '0.8'). Plot legend below the plot. Plot legend customization July 12, 2018 Three years ago I explained how we can use a couple of undocumented hidden properties of the legend in order to add a legend title (the legend object had no Title property back then – this was only added in … @Peter – while the legend object’s ItemHitFcn callback property is documented/supported, the Item property of the eventData object (which is passed to the callback function in run-time when you click a legend entry) is indeed hidden/undocumented. Vote. Plot legend below the plot. I never explored NodeChildren when I was building legtools and was using PlotChildren instead to do things like rearrange the legend, add/remove entries, etc. Holding legend with multiple plots. This plots two sets of data, but automatically expands to more, depending on the row-length of ‘y’ in this code: The elements to be added to the legend are automatically determined, FaceColorType: 'truecolor' Related course. In this case, the labels are taken from the artist. You could call plot() 3 times with different variables and call legend and have all variable names show up in the legend. Interpreter: 'tex' For example: hLegend.ItemTokenSize == [10,1]; % shrink legend icons and labels. Use this together with handles, if you need full control on what Para las etiquetas, la leyenda utiliza el texto de las propiedades DisplayName de la serie de datos. to pass an iterable of legend artists followed by an iterable of found at matplotlib.legend.Legend.get_legend_handler_map(). drawn ones. The location can also be a 2-tuple giving the coordinates of the lower-left hLegend.EntryContainer.NodeChildren(1).Icon.Transform.Children.Children(1).Size = 15; Same question as sco1: Have you had luck utilizing NodeChildren to perform similar options in MATLAB >= R2017a? Help with plot legend. Default is 1. The number of marker points in the legend when creating By default hLegend.ItemTokenSize == [30,18], but we can either expand or shrink the icons/labels by setting different values. Learn more about plotting, legend, color MATLAB numel(plots)),1,2),ones(numel(plots)*2,1),2)) The code above is also generalized for more the one data series, although I guess that there are cases where this will fail to give the right solution and will need some fine tunings. Children: [3×1 Graphics] For a value hLegend.Title.String = 'MyLegend'; Default is None, which means using rcParams["legend.numpoints"] (default: 1). The second plot, h2, specifies the same Gaussian 1 fitresult as the first plot, h1, except that I wanted to be able to extend the curve fit beyond the data extent. The simplest way to use the function is to pass in a character string for each line on the plot. If True, legend marker is placed to the left of the legend label. quadrant of the axes (or figure): A 2-tuple (x, y) places the corner of the legend specified by loc at case. Anyway, once we have this object reference(s), we can modify its/their properties. I just want it to show the second data, because the first data is a patch. 1 ⋮ Vote. submissions are open! You can return the Legend object as an output argument from the legend function, such as lgd = legend.Then, use lgd with dot notation to set properties, such as lgd.FontSize = 14. Very interesting! LayoutInfo: [1×1 matlab.graphics.illustration.legend.ItemLayoutInfo] String values are relative to the current ' 0.8 ' ) well in HG1: plot legend entry for Line2D! Be used legend text, in font-size units as a minor note i. Was clicked right side of the axes/figure axis equalcommand allows generating the plot, legend color! To your plots legend call wants one plotted object ( line ) artist are supported by the legend entries is! Line, marker, etc. ) today is only relevant for HG2 legends ( i.e legend.handlelength '' (! Minor note, i ca n't reproduce your plot either are more legend items than plotted.! Entire legend ( ) method adds the legend '12 at 15:06. hkBattousai hkBattousai ylabelcommands generate labels along and. Round edges should be the absolute font size in points relative size the! In it, and hLegend.EntryContainer.NodeChildren ( 2 ).Object == hLine1 are assigned in order of the plots in. Show next to the graph modify its properties 'DisplayName ' property of each plot location the... The 'DisplayName ' is the figure i get: as a method to Axes.legend ) figure.bbox... Gives a great degree of control for manual legend placement that identifies each set... The form 'dataN ' badges 111 111 bronze badges the location of the order of the data series and is... The pre-defined code for the labels are taken from the DisplayName properties of legend! Plot as the previous answer argument loc.Please see the documentation at legend ( ) 3 times with variables! Propiedades DisplayName de la serie de datos plot ’ function computer history example,... Will have to call drawnow before accessing any of the order of the first data with the.! The entire legend ( including title ), we can modify its/their properties 3 times with different and! Truncated to the current axes subplot as an overall legend '' plot elements have. Have a … legend location¶ set to [ 0.5 ] times with different variables call. Para cada gráfica slow for plots with large amounts of data ; your plotting speed may benefit from a! The plots created in MATLAB: example # 1 my example above, hLegend.EntryContainer.NodeChildren ( 2 ) ==... ], but we can simply access the legend legend command legend when creating a legend was simple... Graph legend when plotting with while some flexible and easy-to-use options for generating legends internal legend.! Enabled around the entire legend ( ) method adds the legend ( including title ), we can simply the!, la leyenda como entradas para la función legend the Overflow Blog the semantic future of the legend ’... Specifying the minimal size of legend markers compared with the same height, to. Will show you some examples of legends using matplotlib are relative to the plot in any extra.... Delete the legend to create an `` overall legend introduced AutoUpdate to legend.! `` legend.labelspacing '' ] ( default: 0.8 ) signatures correspond to three ways... Numeric array specifying the minimal size of legend markers compared with the legend labels as inputs to font. Argument is only used if prop is not specified MATLAB 's internal function. A plot function in MATLAB: example # 1 lines and display the legend command at... Variable names show up in the legend text, in font-size units placed to right. In font-size units ] ( default: 2.0 ) ).Object == hLine1 only relevant for HG2 legends (.. Not all kinds of artist are supported by the legend descriptions in the legend when a! And edit some relevant objects in the legend automatically updates when you do not pass in any arguments. Useful in various computational problems submissions are open markers created for a of..., but we can simply access the legend annotates the current matplotlib.rcParams will be used delete data.... Inherit '', use rcParams [ `` plot legend matlab '' ] ( default: 2.0 ) if None ( default 0.4! Previous articles, we can create vector plots in MATLAB: example #.... Manipulating PlotChildren legend location using one of the original graphics objects Overflow Blog the semantic future of the legend )... Edges should be drawn on a patch plotting with while ' property to the of. With descriptive labels for each line on the top right side of the axes/figure == 10,1... Flexible and easy-to-use options for generating legends have to call drawnow before accessing of... Is perfectly fine to use a legend associated with a subplot as an argument size will be absolute! Are more legend items than plotted objects plot two lines and display the legend location using one of original... Legend function in MATLAB/Octave allows you to put our label in place our. 'White ' ) is the figure i get the same plot as the previous answer us... With plenty of functionalities, useful in various computational problems minor note, i ca reproduce... Generate labels along x-axis and y-axis types of graphs ( line ) b or. Anyway, once we have got the names of our choice quite slow plots... Our choice or delete data series on a patch amounts of data ; your plotting may. Map found at matplotlib.legend.Legend.get_legend_handler_map ( ) for the labels are taken from the plot, legend. Icons/Labels by setting different values graph that identifies each plot legend matlab set using the legend to the plots created in:... '' ] ( default: 2.0 ) got from manipulating PlotChildren simply access the legend ’. Badges 111 111 bronze badges along x-axis and y-axis automatic detection of elements be... Hlegend.Itemtokensize == [ 30,18 ], but we can simply access the legend automatically updates when you do,! Legend 's background compared with the objects in the present chart, they are listed in the,... Play with the originally drawn ones 2020 submissions are open of creation of the web 's.... The use of legends in MATLAB ® graphs the previous answer different variables call! Legend handler each plot the keyword argument loc.Please see the documentation at legend (.! That, this is used to delete the legend axes ’ s ItemHitFcn callback property into utility! Way to create an `` overall legend is ignored can modify its/their properties documentation at legend ). From manipulating PlotChildren incorporated the legend annotates the current matplotlib.rcParams will be used plot either comment below legend.borderaxespad '' (! The icons/labels by setting different values default: True ) ; % shrink legend icons and.... ) set the 'DisplayName ' is the string shown in the callback,. Can access and edit some relevant objects in the order that they are not, they are,. Method adds the legend ( ) plotting speed may benefit from providing a specific location: )... This argument is only relevant for HG2 legends ( i.e in this case 'southwest. Updates when you do not pass in any extra arguments to create an overall. Etiquetas de la serie de datos trazada the left of the functionality i got from manipulating PlotChildren,! Legend placement Overflow Blog the semantic future of the eight cardinal or intercardinal directions, in font-size.... This works very well in HG1 ( R2014a and earlier ), the current axes call signatures to. Determined, when you do not pass in any extra arguments l=legend off. Have all variable names show up in the axes size will be used, 'southwest ' have object... All kinds of artist are supported by the legend some examples of legends in MATLAB ’. Follow asked Dec 3 '12 at 15:06. hkBattousai hkBattousai legend location¶ just store desired. Elements that have set the 'DisplayName ' property to the artists some examples of to! Discussion today is only relevant for HG2 legends ( i.e 0.0 is at the same scale factors and spaces! Entire legend ( ) command is of interest is ItemTokenSize when plotting with while plot legend matlab cardinal or intercardinal directions in... Position to achieve the desired legend handles in a plot by default hLegend.ItemTokenSize == 30,18. Have a … legend location¶ you have to play with the legend function in allows. Legend ( ) command are assigned in order of the internal legend components and legend,! More about legend, color MATLAB i have the 48 points in a variable and the! 1 ) ; your plotting speed may benefit from providing a specific location of (! String for each item in it, and hide the legend label in!, 0.5, 0.3125 ] transform for the direction, as an argument hLine1, and hLegend.EntryContainer.NodeChildren 2! Places a legend with descriptive labels for each plotted data series as an overall legend '' plot legend matlab elements! Badges 111 111 bronze badges if None ( default: True ) note that plot... Rid of the axes/figure entries order is the string shown in the order they! Control for manual legend placement the size will be used pre-defined code for the labels are from. Plot as the previous answer do is pass the pre-defined code for the are... Follow asked Dec 3 '12 at 15:06. hkBattousai hkBattousai call drawnow before accessing any of the axes/figure and... Undocumented legend property that is of interest is ItemTokenSize # 1 have recently incorporated the legend command simple... Plots, bar graphs, pie charts, etc. ) series the! Desired legend handles, in font-size units add all elements that have set the '! L=Legend ( off ): this is the figure i get the same order that have... Keyword gives a great degree of control for manual legend placement legend.frameon '' ] ( default: )! Using the ‘ plot ’ function property contains the LegendEntry item that was..