MATLAB: Plotting data from one GUI to other

plotsharing data

Hello Everyone

I have a doubt regarding plotting the data that is being generated in one GUI, in another window which consists of just an axes and a pushbutton (Save as). I am using the function 'plot' in the first GUI and want to pass the handle of the axes (present in the second GUI) to the first so that data generated will be plot in the second GUI. I am trying to use the sharing method with guidata.

Thanks in advance.

Best Answer

You'll need to store handle of the 2nd figure/GUI in root. You can achieve this by typing the following code in opening function of second gui:

function SecondGuiName_OpeningFcn(hObject, eventdata, handles, varargin)
setappdata(0 , 'SecondGui', gcf) % stores handle to this gui in root

And now in push button callback of your main gui:

SecondGuiName; % invokes second gui
SecondGui = getappdata(0 , 'SecondGui') % collects handle to the second gui
h         = findobj(SecondGui , 'type' , 'axes') % looks for object of type...                                                                  
                                                 % axes in the second gui 
axes(h)
plot(xdata,ydata)

Related Solutions

MATLAB: How to reset toggle buttons with a push button

push buttton callback:

set(handles.togglebutton1,'value',0);
set(handles.togglebutton2,'value',0);

MATLAB: How to Transfer data from Main gui to another GUI in case , when multiple instances of GUI is used

Sundeepan - I strongly suggest that you don't use eval to evaluate your expressions. Your

 id = strcat('hPlot',num2str(l)); % name assigned to each figure 
 eval(sprintf('%s = PlottingGUI;',id));   % call plotting GUI

seems to be dynamically creating local variables to the multiple instances of the PlottingGUI. But what happens to these variables afterwards? How do you reference them? A better solution would be to create an array of handles to the GUIs like

 hPlottingGui = [];
 for l = 1:num
     hPlottingGui(l) = PlottingGUI;
 end

With the above, you will still have all of the handles but they will be stored in an array and so easier to access/manipulate.

With your third piece of code, you state that In Main GUI, the plotting GUI is then called using the following code: which is

 for figure_number = 1:num 
    GenID = strcat('Plot',num2str(figure_number));
    GenGUI = getappdata(0,GenID);                  % collects handle to the plotting gui
    g_main = findobj(GenGUI , 'type' , 'axes');    % looks for object of type                                                             
    axes(g_main);
    % etc.
 end

But the above iterates over ALL of your Plotting GUIs and not just a particular one. This implies that all of them will be updated. So how do you know when the Main GUI should update the Plotting GUI k?

Best Answer

Related Solutions

MATLAB: How to reset toggle buttons with a push button

MATLAB: How to Transfer data from Main gui to another GUI in case , when multiple instances of GUI is used

Related Question