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4.9 | 23 ratings Rate this file 47 Downloads (last 30 days) File Size: 2.52 KB File ID: #19877 Version: 1.1
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Tim Farajian (view profile)


11 May 2008 (Updated )

Allows programmatically adding datatips to any valid graphical object.

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MAKEDATATIP allows programmatically adding datatips to some graphical objects.

Updated to allow adding datatips to additional handle objects including scatter plots and images. If there are other object types you want supported that do not currently work, please let me know.

  x = 1:10;
  y = rand(1,10);
  hPlot = plot(x,y);
  makedatatip(hPlot,[3 8])

  [X,Y,Z] = peaks(30);
  hObj = surf(X,Y,Z);
  I = [5 8; 20 12; 22 28];
  hDatatip = makedatatip(hObj, I);


This file inspired Linkdatatips and Programmatically Datatip Generation With Matlab Implementation.

Required Products MATLAB
MATLAB release MATLAB 7.14 (R2012a)
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Comments and Ratings (30)
07 Feb 2017 Hildo

Hildo (view profile)

To work with datetime variable (present in the R2016a & b Matlab, add this lines before the for loop

if isa(X, 'datetime') || isa(X, 'duration'), X=datenum(X-min(X)); X=X/max(X); end
if isa(Y, 'datetime') || isa(Y, 'duration'), Y=datenum(Y-min(Y)); Y=Y/max(Y); end
if isa(Z, 'datetime') || isa(Z, 'duration'), Z=datenum(Z-min(Z)); Z=Z/max(Z); end
catch ME

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29 Dec 2016 Eduard Seibel

Works very smoothly! Thank you very much!

17 Aug 2016 JS Jiang

Exactly what I needed.

03 May 2016 AG

AG (view profile)

I was wondering why there is a check for positive integers for the subscript of the datatip. The subscript depends on the value on the x-axis/y-axis and these axes could have negative as well as non integer values.

In my data for example the values on the x axis run from 0 to 0.9 and the function was failing because of that. so i modified it to not throw an error.

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14 Apr 2016 illidan05

Hello everyone,

The file works great with the example but when i try it with my file, i get this message :
"Error using makedatatip (line 95)
Subscript indices must be positive integers."

Someone can help me ?

Thanks for your help

23 Mar 2016 Jianwei Tu

Awesome, thank you.

17 Dec 2015 Akash Shah

29 Aug 2015 Zhixiong

This is wonderful.
@Guanfeng Gao: Check the answer given by Lliya.

Comment only
15 Jul 2015 Guanfeng Gao

There shows the Error even when I use the example, could anyone tell me how to fix it?:

Error using get
There is no DataCursor property on the PointDataTip class.

Error in makedatatip (line 139)
set(get(hDatatip(n),'DataCursor'),'DataIndex',index(n, :),...

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31 May 2015 Kevin J. Delaney

Fantastic! Just what I needed.

09 Mar 2015 Jad

Jad (view profile)

Make the chnages that Illiya recommends and it works just fine.

18 Dec 2014 Mark

Mark (view profile)

08 Dec 2014 Dev-iL

Dev-iL (view profile)

One note though, when using HG2 (the new graphics engine that was officially introduced in MATLAB 2014b), a couple of changes need to be made to the code:
***********CHANGE 1*********
line 122 needs to be:
pos = [X(index(n)) Y(index(n)) 0];
***********CHANGE 2*********
lines 135-141 should be commented OUT

23 Oct 2014 * *

* * (view profile)

29 Jul 2013 Alexander Kosenkov

03 Jun 2013 almog shalom

12 Nov 2012 Geraint

12 Nov 2012 Geraint

09 Oct 2012 Daniel Wirtz

Daniel Wirtz (view profile)

Thanks, quite useful.
Would be nice to also be able to pass an axes/figure handle, which causes the tip to be created for the first graphics object (patch, surface..) found.

10 Jul 2012 Jiro Doke

Jiro Doke (view profile)

This is a very useful, well-written function. His help is complete with many examples. I also like how he has extensive error-checking in the code, to ensure proper usage.

18 Sep 2011 Maider Marin

I have an image and I need to put datatips on pixels in positions [61,98] and [63,94] then I try to use this function calling my image J:
hObj=imshow(J);makedatatip(hObj,[61,98; 63,94])
but I got an error:
??? Error using ==> get
There is no 'ZData' property in the 'image' class.

Then I commented line 65 and write
Z=[]; the truth is I am only going to used for images. But then I have a second error.
??? Attempted to access X(61); index out of bounds because numel(X)=2.

Error in ==> makedatatip at 99
pos = [X(index(n)) Y(index(n))];
Can somebody help me.

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16 Aug 2011 Benjamin

21 Jun 2011 Ben

Ben (view profile)

05 Aug 2010 Alexandre Schimel

very good, well coded and useful function.
Just a note. I use R2008a and tried to use it on a "imagesc" graphical object. The function doesn't work since image properties have different XData and YData and no Zdata. I had to tweak a little the code.

22 Mar 2010 James Ross

Any chance of posting this using the BSD License?

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15 Mar 2010 Jason

Jason (view profile)

Is there an easy way to allow makedatatip work with scatter plots?

??? Error using ==> makedatatip at 57
Objects of class 'specgraph.scattergroup' are not a valid targets for


Comment only
15 Apr 2009 Yannick T

Very useful indeed. I don't know why Matlab itself doesn't provide this feature, I spent a lot of time searching the documentation for a way to do this.

23 Jul 2008 Daphne W

Just what I was looking for on the Newsgroup a few months ago. Works perfectly on 2006b as well.

21 May 2008 Ben Kang

Very useful! Sometimes, it's hard to find and select exactly the point, especially for 3-D complex surface.

13 May 2008 John D'Errico

A nice idea. Good help, lots of examples, good error checking, an H1 line. Well done.

27 Jun 2012 1.1

Included a BSD license.
Updated to allow additional objects including scatter plots and images.

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