FTR, now that fltk is used for generating the documentation we can see that the lack of listener on figure "position" property is also an issue: when printing a figure using a non default size ("paperposition" is changed) the figure position is changed before printing and the legend outline does not fit with the text entries. Graphics handles to the plot objects which were used in making the legend. For example: Control whether the legend has a surrounding box. Units used to interpret the "fontsize" property. If the first argument hax is an axes handle, then plot into this axis, For example: Setting numcolumns also forces the numcolumnsmode property to be set to "manual". Octave can be a great tool for producing nice plots, but exporting them in a file can sometimes be a hassle. with the axes’ descendants. So Jan, you may also be able to control the location of the legend by using the 'Position' property however the method specified in the help function is via the 'Location' property but the help fails spectacularly in explaining how exactly to use it. Function Reference: colorbar Octave-Forge - Extra packages for GNU Octave If the handles, Specify the position of the legend excluding its title. Axes Properties (GNU Octave), Ratio between the x/y/zlabel fontsize and the tick label fontsize. For example: Properties of the legend object may be manipulated directly by using The following customizations are available using option: Place label text to the right of the keys (default). New release of Octave Forge Notable changes in this release include: image: removel of imread and imwrite as they have been moved to core Octave. With the recent graphics code merge, the property has been turned into a double-only property. octave:10> plot (1:10, 'o-') octave:11> h = legend ('abc', 'location', 'none') error: invalid value = none error: called from legend at line 195 column 5 rather than the current axes returned by gca. To position the legend within the grid of a tiled chart layout, set the Tile property on the TiledChartLayoutOptions object. The four elements of the vector are the coordinates of the lower left corner and width and height of the legend. A plot must exist before legend is called. set. This makes the code of "legend.m" to fail. The optional return value h is a vector of graphics handles to the created line objects.. To save a plot, in one of several image formats such as PostScript or PNG, use the print command. Multiple locations can be specified if x, y, (z) are vectors. Subplot are dynamic objects which adapt their size depending on neighbor axes size: when the second subplot appears it forces the first one to be resized hence the wrong legend position. You will need to run system ("fc-cache -fv") manually after installing new fonts. If the first argument hax is an axes handle, then plot into this axis, rather than the current axes returned by gca.. Control the variant of the base font used for text rendering. See colorspec. Create a text object with text string at position x, y, (z) on the current axes. List of labels for the legend items. Unfortunately, Octave legend formatting is somewhat difficult in Octave. For output formats not implicitly rendered on paper, width and height define the size of the image and the position information is ignored. hobjs, are not specified then the legend’s strings will be associated : text (x, y, string): text (x, y, z, string): text (…, prop, val, …): h = text (…) Create a text object with text string at position x, y, (z) on the current axes. New release of Octave Forge To celebrate the release of Octave 3.2, a new release of the package have been made. position: four-element vector, def. > > Thanks > Reza When you create the legend, the function returns the handle to the legend. For example: Control the color of the text strings for legend items. Name of font used for text rendering. Multiple strings can be specified with a character matrix or a cell array of strings. Specify the position of the plot including titles, axes, and legend. This should be compatible with the latest version of Octave. > Another question, is possible change the place where the legend is written > withou use the command 'legend' from octave-forge? Try running gnuplot by itself and then issue the command "test". Control whether the font is italic or normal. Legend entries may be specified as individual character string arguments, In addition to the setting the location, the legend () function also allows you to set the orientation of the legend to either ‘vertical’ (default) or ‘horizontal’. Implementation Note: A legend is implemented as an additional axes object Unfortunately I cannot remember any details. See fontunits property. is taken from the DisplayName property of graphics objects. Changing this property also switches the "location" to "none". 2-The help for legend in gnuplot gives: The `set key` enables a key (or legend) describing plots on a plot. legend … Some terminals have more than 6 colors, and the colors change depending on the terminal. The optional parameter pos specifies the location of the legend of the current figure with the "tag" set to "legend". Graphics handle of the title text object. List of labels for the legend items. Legend entries may be specified as individual character string arguments, a … Units used to interpret the "position", property. Legend entries may be specified as individual character string arguments, a character array, or a cell array of character strings. — Function File: legend ("option") Display a legend for the axes with handle hax , or the current axes, using the specified strings as labels. Closing report as duplicate of the above. Consider what would have happened if we had not included the hold on command. Optional property/value pairs may be used to control the appearance of the text. Next: Line Properties, Previous: Axes Properties, Up: Graphics Object Properties   [Contents][Index]. This property is useful when the legend is in a tiled chart layout. 1 indicates upper right corner, 2 indicates upper left, 3 indicates lower left, and 4 indicates lower right. Any Octave data, "vertical" (default) or "horizontal". In this case, where I’m using multiple lines within the legend, it was necessary to … A cell array of strings of the labels in the legend. : axis (): axis ([x_lo x_hi]): axis ([x_lo x_hi y_lo y_hi]): axis ([x_lo x_hi y_lo y_hi z_lo z_hi]): axis ([x_lo x_hi y_lo y_hi z_lo z_hi c_lo c_hi]): axis (option): axis (option1, option2, …): axis (hax, …): limits = axis Set axis limits and appearance. The legend label text is either provided in the call to legend or If none is found then text is rendered using a default sans serif font (same as the default "*" value). The four Size of the font used for axes annotations. It seems to be due to the fact that the axes "keypos" property used to be of type double or string. bar graphs, etc. : legend (hax, …): legend (hobjs, …): legend (hax, hobjs, …): legend ("option"): [hleg, hleg_obj, hplot, labels] = legend (…) Display a legend for the current axes using the specified strings as labels. However, in Octave 3.2.3 the same code produces a … Here are some tips, with the accompanied examples and code, that might prove helpful if you want to make publishing quality plots in octave… as follows: The optional parameter orient determines if the key elements are The argument limits should be a 2-, 4-, 6-, or 8-element vector. — Values: "on," "off" Note that this property is not compatible with matlab and may be removed in a future version of Octave. The contents of the key, i.e., the names given to each plotted data set and function and samples of the lines and/or symbols used to represent them, are determined by the `title` and `with` options of the {`s`}`plot` command. 3 Comments. figure ('Position', [left bottom width height]) or even set (figure (#),'Position', [left bottom width height]) However, using these commands in Octave only produces a figure that auto-tiles with my command window. I can reproduce it with recent Hg archive. The following example will position the legend at the bottom, outside of the plot, with a horizontal orientation. The four elements of the vector are the coordinates of the lower left corner and width and height of the legend. "data1", "data2", …, "dataN". Apart from the fact that the legend overlays with the second y axis label (which it doesn't on my screen, only when printing to jpg), the problem is that Octave appears to plot two legends on top of each other for some reason: one with the first set of data attached to the first set of axes, and one with the complete set of data, for both axes right on top of the first legend. Tips for printing plots in octave. See bug #39697. This is a known issue, the legend position is not updated when its corresponding axes position changes. The graphics handle of the legend object. a character array, or a cell array of character strings. In this case, the legend seems like a good spot to display the input to the free-vibration equations above. [0.13000 0.11000 0.77500 0.81500] Specify the position of the plot excluding titles, axes, and legend. Color of the legend background. keypos An integer from 1 to 4 specifying the position of the legend. The layout has a grid of tiles in the center, and four tiles along the outer edges. Here is a recap of the plotting commands used in this tutorial. 2009-05-08. string: string | cell array of strings. Graphics handles to the text and line objects which make up the legend. octave#:#> plot(x,y2,’m--’,’linewidth’,2); You can add a legend by typing octave#:#> legend(’f1’,’f2’); Take note of what you see in the plot window. On May 11, 2012, at 2:54 AM, Reza Housseini wrote: > Hi all, > > how do I get the legend properties like position, frame and text in the figure (or axes) handle? Display a legend for the current axes using the specified strings as labels. legend works on line graphs, Colors in plots and legend position: Date: Wed, 21 Sep 2005 13:59:55 +0200: User-agent: KMail/1.8.2: Hello, I'm pretty sure that these questions have been discused in the list before but I haven't been able to find the messages in the archive :-( I'm using Octave 2.9.3. Simply resizing manually a figure containing a legend shows the issue. layer : { "bottom" } Specify the position of the plot including titles, axes, and legend. Properties of legend objects (see legend): Control whether the number of legend items is updated automatically when objects are added to (or deleted from) the peer axes. Octave-Forge is a collection of packages providing extra functionality for GNU Octave. Tutorial to show how to customize a legend in Origin 2018 by changing the symbol size and adding desired syntax to the legend such as a line and/or symbol. In Octave 3.0.5: > plot (0:10) > legend ('linear','location','eastoutside') works as expected with the legend to the outside of the plot. Properties of the legend object may be manipulated directly by using set. The position [left bottom] defines the lower left corner of the figure on the page, and the size is defined by [width height]. "none" turns off the default positioning algorithm and allows the user to set the location directly with the "position" property of the legend object. If no Specify the position of the legend excluding its title. Programming Note: On systems that don’t use FontConfig natively (all but Linux), the font cache is built when Octave is installed. Size of the font used for text rendering. I am programing a function that plots a graphic and I need more than 6 colors. This will plot the cosine and sine functions and label them accordingly in the legend. Toggle display of a box around the legend. When I query get (figure (#),'Position'), I get my input back, as if the figure created was actually at this position. For example, consider a 3-by-3 tiled chart layout. Changing this property also switches the "location" to "none". Multiple locations can be specified if x, y, (z) … labels or DisplayNames are available, then the label text is simply placed vertically or horizontally. Control whether the legend items are arranged vertically (column-wise) or horizontally (row-wise). Control the number of columns used in the layout of the legend items. Show Hide all comments. The allowed values are When setting this property, the text rendering engine will search for a matching font in your system. The four elements of the vector are the coordinates of the lower left corner and width and height of the plot, in units normalized to the width and height of the plot window. position: four-element vector.
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