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Technical articles

Technical articles

Accessing the Matlab Editor

The Matlab Editor can be accessed programmatically, for a wide variety of possible uses – this article shows how.

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October 19, 2009 50 Comments

Updating speaker sound volume

Matlab enables setting the speaker volume via documented Java calls

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October 15, 2009 9 Comments

Performance: scatter vs. line

In many circumstances, the line function can generate visually-identical plots as the scatter function, much faster

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October 14, 2009 4 Comments

Undocumented scatter plot behavior

The scatter plot function has an undocumented behavior when plotting more than 100 points: it returns a single unified patch object handle, rather than a patch handle for each specific point as it returns with 100 or less points.

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October 12, 2009 18 Comments

uicontrol side-effect: removing figure toolbar

Matlab’s built-in uicontrol function has a side-effect of removing the figure toolbar. This was undocumented until lately. This article describes the side-effect behavior and how to fix it.

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October 7, 2009 No Comments

Undocumented mouse pointer functions

Matlab contains several well-documented functions and properties for the mouse pointer. However, some very-useful functions have remained undocumented and unsupported. This post details their usage.

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September 24, 2009 33 Comments

Detecting window focus events

Matlab does not have any documented method to detect window focus events (gain/loss). This article describes an undocumented way to detect such events.

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September 9, 2009 41 Comments

R2009b keyboard bindings

The new Matlab release R2009b includes the ability to customize keyboard bindings for the editor and Command Window. However, there are still some uses for the EditorMacro utility and its variants.

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September 6, 2009 No Comments

Figure toolbar customizations

Matlab’s toolbars can be customized using a combination of undocumented Matlab and Java hacks. This article describes how to customize the Matlab figure toolbar.

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September 2, 2009 24 Comments

Figure toolbar components

Matlab’s toolbars can be customized using a combination of undocumented Matlab and Java hacks. This article describes how to access existing toolbar icons and how to add non-button toolbar components.

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August 27, 2009 50 Comments

EditorMacro v2 – setting Command Window key-bindings

The EditorMacro utility was extended to support built-in Matlab Editor and Command-Window actions and key-bindings. This post describes the changes and the implementation details.

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August 20, 2009 4 Comments

Setting listbox mouse actions

Matlab listbox uicontrol can be modified to detect mouse events for right-click context menus, dynamic tooltips etc.

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August 13, 2009 34 Comments

Context-Sensitive Help

Matlab has a hidden/unsupported built-in mechanism for easy implementation of context-sensitive help

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August 5, 2009 10 Comments

Setting status-bar components

Matlab status-bars are Java containers in which we can add GUI controls such as progress-bars, not just simple text labels

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July 30, 2009 20 Comments

Setting status-bar text

The Matlab desktop and figure windows have a usable statusbar which can only be set using undocumented methods. This post shows how to set the status-bar text.

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July 23, 2009 64 Comments

Non-textual editor actions

The UIINSPECT utility can be used to expand EditorMacro capabilities to non-text-insertion actions. This is how:

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July 17, 2009 10 Comments

BlinkDagger – the end?

In his latest post on BlinkDagger, Quan Quach announced that the BlinkDagger blog will be frozen following co-author Daniel Sutoyo’s hiring by The MathWorks and the continuous strain of maintaining the blog single-handedly. This is sad news indeed for the Matlab user community. Over the past few years, BlinkDagger has

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July 8, 2009 2 Comments

EditorMacro – assign a keyboard macro in the Matlab editor

EditorMacro is a new utility that enables setting keyboard macros in the Matlab editor. this post details its inner workings.

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July 1, 2009 24 Comments

Setting the Matlab desktop layout programmatically

The Matlab desktop enables saving and switching layouts using the main menu. This post shows how to do so programmatically.

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June 24, 2009 6 Comments

Changing system preferences programmatically

Matlab user/system preferences can be changed programmatically, from within your Matlab application or from the Matlab desktop command prompt. This post details how.

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June 17, 2009 16 Comments

GUIDE customization

Matlab’s GUI Design Editor (GUIDE) has several interesting undocumented features. This post describes how to customize GUIDE rulers.

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June 10, 2009 8 Comments

Legend '-DynamicLegend' semi-documented feature

The built-in Matlab legend function has a very useful semi-documented feature for automatic dynamic update, which is explained here.

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June 4, 2009 21 Comments

Spicing up Matlab uicontrol tooltips

Matlab uicontrol tooltips can be spiced-up using HTML and CSS, including fonts, colors, tables and images

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May 27, 2009 20 Comments

tic / toc – undocumented option

Matlab’s built-in tic/toc functions have an undocumented option enabling multiple nested clockings

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May 22, 2009 15 Comments

cprintf – display formatted color text in the Command Window

cprintf is a utility that utilized undocumented Matlab desktop functionalities to display color and underline-styled formatted text in the Command Window

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May 13, 2009 55 Comments
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Recent Posts

Speeding-up builtin Matlab functions – part 3

Improving graphics interactivity

Interesting Matlab puzzle – analysis

Interesting Matlab puzzle

Undocumented plot marker types

Matlab toolstrip – part 9 (popup figures)

Matlab toolstrip – part 8 (galleries)

Matlab toolstrip – part 7 (selection controls)

Matlab toolstrip – part 6 (complex controls)

Matlab toolstrip – part 5 (icons)

Matlab toolstrip – part 4 (control customization)

Reverting axes controls in figure toolbar

Matlab toolstrip – part 3 (basic customization)

Matlab toolstrip – part 2 (ToolGroup App)

Matlab toolstrip – part 1

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Recent Comments
  • Yair Altman (13 days 11 hours ago): @Veronica – you are using the new version of uitree, which uses HTML-based uifigures, and my post was about the Java-based uitree which uses legacy Matlab figures. For...
  • Veronica Taurino (13 days 11 hours ago): >> [txt1,txt2] ans = ‘abrakadabra’
  • Veronica Taurino (13 days 11 hours ago): Hello, I am just trying to change the uitree node name as you suggested: txt1 = 'abra'; txt2 = 'kadabra'; node.setName([txt1,txt2]); >> "Unrecognized method, property, or...
  • Yair Altman (16 days 11 hours ago): The version of JGraph that you downloaded uses a newer version of Java (11) than the one that Matlab supports (8). You need to either (1) find an earlier version of JGraph that...
  • mrv (16 days 16 hours ago): hello, I used MATLAB 2019b update9, I have add jgraphx.jar to javaclassapth, and restart matlab, but still got errors below: Warning: A Java exception occurred trying to load the...
  • xuejie wu (40 days 11 hours ago): Hi: I’m wondering if i can add my customized section or tab ?
  • Yair Altman (52 days 3 hours ago): @Sagar – use the view(az,el) function to rotate the 3D axes.
  • Sagar Chawla (52 days 4 hours ago): I want to know how to change the x-axis to the z-axis. I mean the position. Like if there is a 3d animated graph then how to change position of the axis. X-axis in place of...
  • Ren (52 days 4 hours ago): I noticed that xlsread will create a hidden and never-dying special server that always has priority when actxGetRunningServer is called. So this cause a problem that no matter how many...
  • Ben Abbott (55 days 19 hours ago): Thanks Yair, it was the second. I didn’t not include the drawnow ()
  • Yair Altman (55 days 22 hours ago): @Ben – it looks perfectly ok (with color gradient and all) on my R2022a… Perhaps you missed some of the steps (e.g. setting the ColorBinding to 'interpolated') or...
  • Ben Abbott (55 days 22 hours ago): The graded color is not working for me using R2021a. The plot “HG2 plot line color, transparency gradient” looks exactly like “Transparent HG2 plot...
  • Yair Altman (79 days 1 hour ago): Oliver – you probably forgot to update hMarkers.FaceColorType to ‘truecoloralpha‘: x=1:10; y=10*x; figure; hLine = plot(x,y,'o-'); drawnow...
  • Oliver (79 days 1 hour ago): This seems to have been disabled in the most recent version of Matlab (R2021b). When I use this method the hMarker.FaceColorData does change, but the markers are not made...
  • Yair Altman (97 days 23 hours ago): @Tim – the new uidatepicker() function only works with web-based figures (created using the uifigure() function or App Designer); it is not available on the legacy...
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