Comments on: Advanced MATLAB: Capture mouse movement

By: Doug

Doug — Wed, 29 Jun 2011 18:26:33 +0000

@Zach,

Most of the supporting files were lost at some point. Sorry about that.

Doug

By: zach

zach — Thu, 23 Jun 2011 21:44:07 +0000

Where did the files go?

By: Doug

Doug — Wed, 09 Mar 2011 19:07:33 +0000

@Jeremy,

I would expect you to be able to do this.

Doug

By: Jeremy

Jeremy — Wed, 09 Mar 2011 17:19:44 +0000

Thanks Doug. I’m also trying to make a text object draggable using the same principle. As far as I can tell, the code is correct but the callbacks when clicking on text objects are not being called. Is there a limitation with text objects that I’m not aware of?

By: Doug

Doug — Wed, 02 Mar 2011 19:56:56 +0000

@Jeremy See selection type:

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/figure_props.html#SelectionType

By: Jeremy

Jeremy — Tue, 01 Mar 2011 20:21:34 +0000

Hi Doug, This was a great demo. I’ve got the code implemented in my GUI perfectly. I’ve basically got a set of vertical lines that I’m using the mouse to drag up and down. If I grab one, I set it so they all move together. I’m wondering if you have a suggestion on adding a Ctrl+click and grab functionality that I could use to stretch or shrink all of the lines together. Thanks!

By: Steve L

Steve L — Fri, 19 Feb 2010 17:58:20 +0000

For reference, I believe Kari's post #16 has been resolved in this thread in the comp.soft-sys.matlab newsgroup.

By: Kari

Kari — Thu, 18 Feb 2010 13:52:38 +0000

Hi I have a problem plotting to GUI axes in an outside function (in a different M file). This is what I have been trying to do.

function plotButton_Callback(hObject, eventdata, handles)
% hObject    handle to plotButton (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
%get the current list of file names from the listbox

outsideFunction(handles);

and in another file outsideFunction.m

function outsideFunction(handles)

x = 1:0.1:10;
y = 3x^2 - 2x +5;

axes(handles.myAxes)
plot(x,y);

I get: Error using ==> axes Invalid object handle

By: Matt

Matt — Wed, 10 Feb 2010 21:52:18 +0000

Hi Doug,

I just wanted to say thanks for this video. I was looking around on the web for a while about how to use mouse events in GUIs, but at first I only found complicated “tutorials.” Yours was very simple and basic, which is just what I needed!

I had the same problem Everest had with an older version of MATLAB not sharing handles across functions. However, I was able to work around it by assigning each handle a unique ‘Tag’, then using findobj(…) to lock to the appropriate object.

Thanks again,
-Matt-

By: Doug

Doug — Wed, 21 Oct 2009 14:07:25 +0000

@Lucy

I think this is what you seek to move a line with the mouse in MATLAB.

http://blogs.mathworks.com/videos/2008/05/27/advanced-matlab-capture-mouse-movement/

Doug