Comments on: Accessing plot brushed data

By: Yair Altman

Yair Altman — Mon, 25 Sep 2017 10:59:56 +0000

In reply to ZR. @ZR - if you read my article carefully you will see that BrushHandles and BrushData are properties of the line object (which is returned by the plot or line or scatter functions) - not of the axes object.

By: ZR

ZR — Fri, 08 Sep 2017 13:21:56 +0000

Hello, Is there a way to access brushed data for Scatters in Matlab 2015b? I was able to get it to work in 2012a using your first method described above, but your method described in "Updates for HG2 (R2014b+)" doesn't seem to work. I tried the following, with the following results:

>> hl.BrushHandles
No appropriate method, property, or field 'BrushHandles' for class 'matlab.graphics.axis.Axes'.
 
>> get(hl,'BrushData')
Error using matlab.graphics.axis.Axes/get
There is no BrushData property on the Axes class.

Just to reiterate, this is specifically for scatters, not plots. Thanks!

By: Yair Altman

Yair Altman — Sat, 22 Apr 2017 20:32:31 +0000

In reply to Eric.

@Eric – see my comment above: http://undocumentedmatlab.com/blog/accessing-plot-brushed-data#comment-345181

By: Eric

Eric — Fri, 21 Apr 2017 19:35:22 +0000

@Yair Altman
findall(gca,’tag’,’Brushing’) returns zero on my machine. I’m using R2016b.

By: Yair Altman

Yair Altman — Sat, 04 Mar 2017 17:53:05 +0000

In reply to Rahul. @Rahul - the code that I posted above works well even in R2016b

By: Rahul

Rahul — Sat, 04 Mar 2017 12:34:51 +0000

In reply to bash0r. i try this for getting the brush data in matlab 15b but it is now working. why?.

By: Yair Altman

Yair Altman — Thu, 18 Feb 2016 17:23:49 +0000

In reply to Bill.

@Bill – http://undocumentedmatlab.com/blog/getundoc-get-undocumented-object-properties

By: Bill

Bill — Thu, 18 Feb 2016 14:07:47 +0000

In reply to colin. You can set the brush data using the set command with your line handle, just like you would set the XData or YData.

set(hLine,'BrushData',xxx)

By: Bill

Bill — Thu, 18 Feb 2016 14:05:37 +0000

Thanks! What a great article. Your update in the comments for R2104b+ saved me. How do you find hidden line properties like BrushData?

By: Nimrod Geffen

Nimrod Geffen — Thu, 20 Aug 2015 10:04:33 +0000

Shalom Yair! I have a GUI that I would like to have the interactive option of deleting scatter points with Brush function. My code is:

h = brush;
set(h, 'Enable', 'on', 'color', 'c');
pause
brushedIdx = logical(handles.hScatter.BrushData);  % handles.hScatter is the scatter plot handle
brushedXData = hLine.XData(brushedIdx);

It seems like the pause is just not working. If I debug and put a breakpoint after the pause it jumps right to it without letting me grab the brush data. I used brush with pause in matlab 2013 (with the findall(gca,'tag','Brushing'); to get the brush data) and it worked fine. I'll mention that the GUI is a child GUI and it has uiwait in the openning function (Maybe it is related but in matlab 2013 it did'nt bother). Thank you very much for your help! Nimrod