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Technical articles

Technical articles

Matlab callbacks for Java events in R2014a

R2014a changed the way in which Java objects expose events as Matlab callbacks.

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May 8, 2014 16 Comments

Animated busy (spinning) icon

An animated spinning icon label can easily be embedded in Matlab GUI.

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April 16, 2014 51 Comments

Transparent uipanels

Matlab uipanels can be made transparent, for very useful effects.

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April 9, 2014 17 Comments

uicontextmenu performance

Matlab uicontextmenus are not automatically deleted with their associated objects, leading to leaks and slow-downs.

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April 2, 2014 5 Comments

JSON-Matlab integration

JSON can easily be integrated in Matlab to achieve cross-platform standard API.

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March 26, 2014 18 Comments

Undocumented feature list

A list of undocumented MATLAB features can be retrieved. Here’s how…

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March 19, 2014 4 Comments

Explicit multi-threading in Matlab part 4

Matlab performance can be improved by employing timer objects and spawning external processes.

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March 12, 2014 30 Comments

Explicit multi-threading in Matlab part 3

Matlab performance can be improved by employing POSIX threads in C/C++ code.

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March 5, 2014 4 Comments

Explicit multi-threading in Matlab part 2

Matlab performance can be improved by employing .Net (C#, VB, F# or C++) threads.

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February 26, 2014 No Comments

Explicit multi-threading in Matlab part 1

Explicit multi-threading can be achieved in Matlab by a variety of simple means.

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February 19, 2014 31 Comments

Improving Simulink performance

Simulink simulation run-time performance can be improved by orders of magnitude by following some simple steps.

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February 12, 2014 3 Comments

Undocumented button highlighting

Matlab button uicontrols can easily be highlighted by simply setting their Value property.

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February 5, 2014 1 Comment

Assessing Java object size in Matlab

Java object sizes are not reported by Matlab, but we can still estimate them using two free external utilities.

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January 29, 2014 No Comments

Serializing/deserializing Matlab data

Matlab does not provide a documented manner to serialize data into a byte stream, but we can do this with some undocumented functionality.

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January 22, 2014 22 Comments

MathWorks blogs facelift

MathWorks has just released a new look-&-feel for their blogs section.

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January 12, 2014 1 Comment

2013 perspective & plans for 2014

2013 has seen a continued steady growth in website content and readership. This post takes an overview of past achievements and future plans.

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January 8, 2014 1 Comment

Accessing private object properties

Private properties of Matlab class objects can be accessed (read and write) using some undocumented techniques.

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December 18, 2013 2 Comments

Class object creation performance

Performance aspects of Matlab class object creation are discussed, with specific suggestions.

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December 11, 2013 8 Comments

Plotly graphs

Plotly charts can be created and customized in Matlab.

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December 4, 2013 4 Comments

sprintfc – undocumented helper function

The built-in sprintfc function can be used to quickly generate a cell-array of formatted strings.

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November 27, 2013 5 Comments

Performance: accessing handle properties

Handle object property access (get/set) performance can be significantly improved using dot-notation.

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November 20, 2013 13 Comments

Listbox layout customization

Matlab’s listbox layout can be modified to display multiple item columns and different inter-cell margins.

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November 13, 2013 14 Comments

Another Command Window text color hack

Matlab’s fprintf command has an undocumented hack to display orange-colored text.

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November 6, 2013 6 Comments

Matlab numerical gotchas

Matlab includes some numerical gotchas that we should be careful to avoid…

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October 30, 2013 9 Comments

Draggable plot data-tips

Matlab’s standard plot data-tips can be customized to enable dragging, without being limitted to be adjacent to their data-point.

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October 23, 2013 6 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 (10 days 16 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 (10 days 16 hours ago): >> [txt1,txt2] ans = ‘abrakadabra’
  • Veronica Taurino (10 days 17 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 (13 days 16 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 (13 days 21 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 (37 days 17 hours ago): Hi: I’m wondering if i can add my customized section or tab ?
  • Yair Altman (49 days 9 hours ago): @Sagar – use the view(az,el) function to rotate the 3D axes.
  • Sagar Chawla (49 days 9 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 (49 days 9 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 (53 days 0 hours ago): Thanks Yair, it was the second. I didn’t not include the drawnow ()
  • Yair Altman (53 days 3 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 (53 days 4 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 (76 days 6 hours 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 (76 days 7 hours 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 (95 days 4 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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