When plotting filled areas patch or surface objects, the legend contains a sample of the face color next to the text label. For example, when plotting lines, the first line uses the first color, the second line uses the second color, and so on. When i insert a legend in my figure, i observe two red lines labeled data1 and data2 and the blue line labeled data3 in the legend box. How do i set the legend to display only one entry for all. Matlab automatically updates the color, line style.
The graph has two legends and plotted from a big loop. The line color used for legend will be the same as the line color used on the graph. Sep 25, 2012 i use line to plot each point, make a legend for the colors across the top, and then attempt to make separate legend on the right for the markers by placing another axis on top of the first one. Help with plot legend matlab answers matlab central. How can i set the color of text in a legend to match its. Save as or copy your new figure with the right legend. The other subplots have different points so i want to then set their line colours too so the same points have the same colours in all subplots, so i can use one legend for all the subplots. May 22, 2016 hello, my plot has two many lines but with only two different colors.
When i want to add the legend i just want to write the legend for those two colors, but. Im unsure of how to correct this issue, and have used multiple legend commands to no avail. Add a legend to the graph that identifies each data set using the legend function. I have a plot with 4 different colors, the problem is that i dont know in which order the colors are being printed and it is a bit hard to save the. Stem chart appearance and behavior matlab mathworks australia. It is not showing the color coded key in the legend although it will show the label text. Axes appearance and behavior matlab mathworks america latina. If there are more lines than colors, then the cycle repeats. Line color, specified as an rgb triplet, a hexadecimal color code, a color name, or a short name. At the end there are same colors both blue for both lines which represented in the legend box however the data itself are in blue and red. However, i wish to see only one entry for red line labeled as data1 and the blue line to be labeled data2.
Is it possible to specify only a subset of the lines to be reported in the legend and relative text. Jul 14, 2018 i want to change the color of line on the legend, not plotted data. How do i vary color along a 2d line learn more about surface, trick, plot, color, multicolor, 2d. Optionally, specify the legend location using one of the eight cardinal or intercardinal directions, in this case, southwest. The default value of 0 0 0 corresponds to black for a custom color, specify an rgb triplet or a hexadecimal color code. I expected no red line to be visible as each plot has only one point and theres no line to print. How to set different colors for the text in a legend. The horizontal velocities are shown as the difference from average hence why the units are sigma. I would like to add a legend with these 8 variables. Mathworks e leader nello sviluppo di software per il calcolo matematico per ingegneri e ricercatori.
When i use figureinsertlegend then graphical representing of my variables is fine, but then i cannot change the description of variables which is as follow. Color specification matlab colorspec color specification. Here, h is a handle to the legend object and plots is an array of the plotted line objects. Each iteration i am plotting the file has many arrays but legend granted a single line with the end of the file name otherwise same color for all the iteration files. Assigning different color in legend matlab answers. Mathworks is the leading developer of mathematical computing software.
Today i will expand on that article by explaining the plot legends internal graphics hierarchy, how we can access each of these. Mathworks is the leading developer of mathematical computing software for engineers. Legend properties control the appearance and behavior of a legend object. Learn more about plot, color, legend, matlab, graphics. Assigning different color in legend matlab answers matlab. Lines in legend are missing matlab answers matlab central.
Legend problem in a multiple axes graph matlab answers. Imagine if you have lines that are plotted only to identify areas in the plot space and. Colors for your multiline plots file exchange pick of the week. However, as you can see from the plot below, the legend displays its names. For red color it should be written type1 in the legend, for green color type2 and for blue color type3. Mathworks is the leading developer of mathematical computing software for engineers and. By inheriting from this class, you can display a legend in your chart. Legend is a class for adding legend support to charts that inherit from matlab. Your users can select options in the figure menu bar or the figure toolbar to show or hide that legend. Instead, i can use the color matrix that i just created and use that in my color bar. The background of a plot legend can be made transparent by setting the color property of the legend to none.
I tried to manipulate legend so that i could have six labels, repeating the first category two lines, one solid one dashed for a total of six legend labels, 4 with category labels next to colored lines and 2 with data source labels next to dashed lines of one color. You must have at least three plots in each plotgauss2d plot. Aug 30, 2016 how to set different colors for the text in a. Matlab assigns colors to objects according to their order of creation. Create primitive line matlab line mathworks america latina. The characters and symbols can appear in any order. Plot linesmoothing property linesmoothing is a hidden and undocumented plot line property that creates antialiased smooth unpixelized lines in matlab plots. 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. Each specification can include characters for the line color, style, and marker.
Scatter plot by group matlab gscatter mathworks benelux. The rgb triplet is a threeelement row vector whose elements specify the intensities of the red, green, and blue components of the color. Legend label, specified as a character vector or string scalar. Dec 22, 2009 two of the line plots are colored red and the other is colored blue. Plot legend does not display any lines matlab answers. The short names and long names are character vectors that specify one of eight predefined colors. As such, your legend command is applying the legend to the first three plots, all from the first call to plotgauss2d. Matlab 2007a if you want to change the color of the line of the legend, you can use the following trick, %some data x0. Markerfacecolor marker interior color, which is specified as a color name or an rgb triplet. Learn more about legend, plot colors, legend colors not matching plot colors. Making a multicolor line in matlab stuarts matlab videos. If you instead use plotxz,ys matlab will automatically assign a color. Here are the rgb triplets and hexadecimal color codes for the default colors matlab uses in. How do i make the background of a plot legend transparent.
Primitive line appearance and behavior matlab mathworks. As such, your legend command is applying the legend to the first three plots, all from the first call to plotgauss2d skipping some of your code, you can make your legend right by doing this. If you instead use plotxz,ys matlab will automatically. Follow 493 views last 30 days hassan on 21 jun 2011. Edit legend title and move it to the desired position 9. Thank you for your answer but as i said earlier, any of these commands, for some reason, do not do what they are supposed to do anymore. How to update legend in matlab r2017a matlab answers. You can specify xvalue as a numeric, categorical, datetime, or duration value. Location of the vertical line on the xaxis, specified as a scalar. I am plotting a simple line graph of 3 different sets of data on one plot and the legend works, but the legend colors do not match the colors. It also sets the marker edge color when the markeredgecolor property is set to auto. I can give any specific array of 4 numbers to matlab to set the position but they are not interpreted correctly and matlab seems to just randomly change the position of. Add legend support to chart container subclass matlab. See legend properties for a list of them and their default settings.
An rgb triplet is a threeelement row vector whose elements specify the intensities of the red, green, and blue components of the color. Learn more about color, plot, colorcode, rgb matlab. How to plot a line of a certian color matlab answers. Line properties control the appearance and behavior of a line object. For a custom color, specify an rgb triplet or a hexadecimal color code. Matlab uses the number to calculate indices for assigning color, line style, or markers when you call plotting functions. Line style and color, specified as a character vector or string scalar containing symbols.
Specify the legend descriptions in the order that you plot the lines. However, the type of value you specify must match the data type for the values along the xaxis example. When i want to add the legend i just want to write the legend for those two colors, but in the legend it shows me the same color. Save as figure at this point if you need to reset something 4. Jul 12, 2018 transparent legend matlab chart legends are opaque be default but can be made semi or fully transparent. Two of the line plots are colored red and the other is colored blue. Now i would like to create a legend containing the three different colors as well as explaining filled and not filled markers. Instead of making a line with different colored markers in matlab, we will be making a multi color line in matlab.
Creating legend for scatter plot matlab answers matlab. Mathworks is the leading developer of mathematical computing. I made a color array based on my iteration and same for the legend. To use the same color for all contour lines, specify an rgb triplet, a hexadecimal color code, a color name, or a short name. In the matlab version up to r2014a the legend box is actually an axes so it is relatively easy to modify its content through its handle from version r2014b the legend is a graphics object and seems there is no way to access to the axes handle ref. I looked all over the internet, hope somebody have a suggestion to solve it. One way to create a legend containing the colors of the contours is to create invisible lines with the colors of the contour plots. So currently i have y but again i dont want to use yellow. I already reinstalled matlab and the problem persists. Hello, my plot has two many lines but with only two different colors. I want to change the color of line on the legend, not plotted data. I can give any specific array of 4 numbers to matlab to set the position but they are not interpreted correctly and matlab seems to just randomly change the position of the legend a bit.
This is basically mike garritys solution with a forloop to make it more suitable for larger number of data sets. What we really are doing is making a function that will me a series of lines, each with a different color. Learn more about plot scatter loop legend matlab, statistics and machine learning toolbox. Follow 478 views last 30 days hassan on 21 jun 2011. The only thing which puzzles me is that you can see the red line. The indices refer to the rows of the arrays stored in the colororder and linestyleorder properties of the axes. Assuming you are using matlab r2014b or later, there are some possible workarounds that you can use for this. By changing property values, you can modify certain aspects of the line chart. By default, matlab clears the figure each time you call a plotting function, resetting the axes and other elements to prepare the new plot. Markeredgecolor marker outline color, which is specified as a color name or an rgb triplet. Can anyone please tell me how i can skip the lines with the same color.
This is actually stretchig the truth a little since lines have exactly one color in matlab. The forloop gets the color of each line from plots, converts it into a string, and then reformats the existing label text with tex markup to change the color appropriately. I would like to have this line change color gradually, representing the time axis or the index of the x, y vectors. Make legend for lines matlab answers matlab central. Plot line colors and legend colors dont match matlab. The following link describes tex markup for legend text in further detail. Aug 15, 2014 how to plot a line of a certian color. This is even happening with old plots from homework from last year when last year it was giving a correct legend.
Legend does pick up line colors, styles, markers, and so on. Contour chart appearance and behavior matlab mathworks. However, legend will not allow me to use different labels for the same line. Notice that the titles and labels that you defined for the first plot are no longer in the current figure window. Follow 427 views last 30 days hassan on 21 jun 2011. Contour plot legend how to change symbol to straight line. Specify the colors using either a character vector of a color name, such as red, or an rgb triplet, such as 0. Issues in legend color lines in for loop matlab answers. Editing colors in the legend matlab answers matlab central. Nov 04, 2011 matlab 2007a if you want to change the color of the line of the legend, you can use the following trick, %some data x0. Color, specified as an rgb triplet, a hexadecimal color code, a color name, or a short name. Learn more about legend, plot, plotting, color matlab. Be sure to not put a semicolon after the get call, so you will see all the properties.
Skipping some of your code, you can make your legend right by doing this. However, i wish to see only one entry for red line labeled as. I use line to plot each point, make a legend for the colors across the top, and then attempt to make separate legend on the right for the markers by. Chart line appearance and behavior matlab mathworks. Vertical line with constant xvalue matlab xline mathworks. Dec 08, 2016 i tried to manipulate legend so that i could have six labels, repeating the first category two lines, one solid one dashed for a total of six legend labels, 4 with category labels next to colored lines and 2 with data source labels next to dashed lines of one color. You can create each plot with a handle hi, of which you store only the first entry in h. On a tight visualization its difficult to display the calculation or field that the reference line encodes. Legend colors dont match matlab answers matlab central. The matrix ratings contains the ratings information plot the relationship between the ratings for climate first column and housing second column grouped by city size in the matrix group. Jul 22, 2019 each iteration i am plotting the file has many arrays but legend granted a single line with the end of the file name otherwise same color for all the iteration files. The data set contains ratings of cities according to nine factors such as climate, housing, education, and health.
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