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Technical articles

Technical articles

UDD and Java

UDD provides built-in convenience methods to facilitate the integration of Matlab UDD objects with Java code – this article explains how

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March 23, 2011 4 Comments

UDD Events and Listeners

UDD event listeners can be used to listen to property value changes and other important events of Matlab objects

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March 16, 2011 32 Comments

UDD Properties

UDD provides a very convenient way to add customizable properties to existing Matlab object handles

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March 9, 2011 8 Comments

Hierarchical Systems with UDD

UDD objects can be grouped in structured hierarchies – this article explains how

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March 2, 2011 10 Comments

Creating a simple UDD class

This article explains how to create and test custom UDD packages, classes and objects

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February 23, 2011 6 Comments

Introduction to UDD

UDD classes underlie many of Matlab’s handle-graphics objects and functionality. This article introduces these classes.

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February 16, 2011 7 Comments

Multi-column (grid) legend

This article explains how to use undocumented axes listeners for implementing multi-column plot legends

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February 7, 2011 5 Comments

JGraph and BDE

This article shows how to display graph-theory diagrams in Matlab using several different Java libraries

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January 26, 2011 13 Comments

JFreeChart graphs and gauges

JFreeChart is an open-source charting library that can easily be integrated in Matlab

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January 17, 2011 32 Comments

2010 perspective & plans for 2011

2009 and 2010 have seen steady growth in readership of this website. This post takes an overview of past achievements and future plans.

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January 8, 2011 18 Comments

handle2struct, struct2handle & Matlab 8.0

This article explains how we can use a couple of undocumented functions in Matlab GUI, and what we can learn from this about Matlab’s future.

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December 29, 2010 11 Comments

FIG files format

FIG files are actually MAT files in disguise. This article explains how this can be useful in Matlab applications.

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December 22, 2010 18 Comments

uisplittool & uitogglesplittool callbacks

Matlab’s undocumented uisplittool and uitogglesplittool are powerful toolbar controls – this article explains how to customize their behavior

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December 15, 2010 3 Comments

uisplittool & uitogglesplittool

Matlab’s undocumented uisplittool and uitogglesplittool are powerful controls that can easily be added to Matlab toolbars – this article explains how

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December 8, 2010 9 Comments

Matlab callbacks for Java events

Events raised in Java code can be caught and handled in Matlab callback functions – this article explains how

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November 30, 2010 88 Comments

Panel-level uicontrols

Matlab’s uipanel contains a hidden handle to the title label, which can be modified into a checkbox or radio-button control

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November 24, 2010 17 Comments

Uitab customizations

This article shows several customizations that can be done to Matlab’s undocumented tab-panels functionality

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November 17, 2010 9 Comments

Uitab colors, icons and images

Matlab’s semi-documented tab panels can be customized using some undocumented hacks

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November 10, 2010 42 Comments

Customizing Workspace context-menu

Matlab’s Workspace table context-menu can be configured with user-defined actions – this article explains how.

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November 3, 2010 19 Comments

Customizing uicontrol border

Matlab uicontrol borders can easily be modified – this article shows how

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October 31, 2010 15 Comments

The hgfeval function

The semi-documented hgfeval function can be useful for callback chaining – this article explains how

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October 27, 2010 2 Comments

Fixing a Java focus problem

Java components added to Matlab GUIs do not participate in the standard focus cycle – this article explains how to fix this problem.

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October 20, 2010 25 Comments

Matlab-Java interface using a static control

The switchyard function design pattern can be very useful when setting Matlab callbacks to Java GUI controls. This article explains why and how.

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October 13, 2010 27 Comments

Accessing plot brushed data

Plot data brushing can be accessed programmatically using very simple pure-Matlab code

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October 6, 2010 25 Comments

Undocumented cursorbar object

Matlab’s internal undocumented graphics.cursorbar object can be used to present dynamic data-tip cross-hairs

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September 29, 2010 40 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 (12 days 5 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 (12 days 5 hours ago): >> [txt1,txt2] ans = ‘abrakadabra’
  • Veronica Taurino (12 days 6 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 (15 days 6 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 (15 days 10 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 (39 days 6 hours ago): Hi: I’m wondering if i can add my customized section or tab ?
  • Yair Altman (50 days 22 hours ago): @Sagar – use the view(az,el) function to rotate the 3D axes.
  • Sagar Chawla (50 days 22 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 (50 days 23 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 (54 days 13 hours ago): Thanks Yair, it was the second. I didn’t not include the drawnow ()
  • Yair Altman (54 days 16 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 (54 days 17 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 (77 days 19 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 (77 days 20 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 (96 days 18 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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