Toolbar Guide GUI Editor - Tool Creation - Brush

How can I include a brush tool onto my GUI? This is as far as I get

function uitoggletool_ClickedCallback(hObject, eventdata, handles)

       brush(handles.clean_plot)

guidata(hObject, handles)

Many thanks, Will

Answer 1

[Adam]

function togglebutton1_Callback(hObject, eventdata, handles)

if hObject.Value == 1
  brush( handles.figure1, 'on' );
else
  brush( handles.figure1, 'off' );
end

seems to work fine for me using a toggle button. Strangely when I tested it at first on a scatter plot using the '*' marker it didn't work, but the same behaviour happened when I just tried on a normal normal figure so I don't know what is going in there. It worked when I used a 's' marker for my scatter plot though in both cases.

handles.figure1 is the tag for the figure itself. I never call mine 'figure1' when i am creating a proper GUI, but this was just a test so that is what it refers to. It must be the figure handle, not an axes handle.

[William]

It comes up with an error saying...

Attempt to reference field of non-structure array.

Error in GUI_name>uitoggletool6_clickedcallback (line ...)
if hObject.Value == 1

[Adam]

What is your full callback syntax?

Is this a GUI written using GUIDE or programmatically? My example was done using GUIDE, but the same idea should work programmatically, except that you obviously don't have a 'handles' structure and you don't have hObject either unless that is what you happened to name it in your created callback.

[William]

it's in GUIDE (even tho I said programmatically at the top :L )

function uitoggletool6_ClickedCallback(hObject, eventdata, handles)

if hObject.Value == 1
  brush( handles.clean_midline_plot, 'on' );
else
  brush( handles.clean_midline_plot, 'off' );
end

If I look at the property inspector of the toolbar icon from the guide menu, it doesn't mention a "Value".

[Adam]

Which version of Matlab are you using? I guess I should have used the old syntax to be sure:

if ( get( hObject, 'Value' ) == 1 )

should work in all versions of Matlab. The syntax I originally gave only works with R2014b onwards.

[William]

I'm on R2013a. Now it tells me the brush function finds the figure Unknown or invalid

[Adam]

Is 'clean_midline_plot' a figure handle? It sounds more like an axes handle or an image or line object handle.

[William]

yes, it's an axes handle. Would it be possible to create a new figure on guide to plot it into?

[Adam]

You can either create a new figure or use the figure containing your current axes handle. So long as you have the handle of whichever figure it is to be applied to it should work.

[William]

Because I have 2 other axes handles within this figure, so how to I choose a specific axes?

Think I'll just define a new figure and then save the brush data into the workspace shared by the original figure

[Adam]

As far as I know the brush will apply to all axes in a figure. I don't see an option to choose an axes for the brushing specifically. It isn't functionality I have ever used myself though, I'm just looking at the help page.

Answer 2

[Sung Hwan Heo]

Do as follows//

function uitoggletool_brush_ClickedCallback(hObject, eventdata, handles)

if strcmp(get(handles.uitoggletool_brush, 'state'), 'on') brush( handles.figure1, 'on' ); else brush( handles.figure1, 'off' ); end guidata(hObject, handles);