How to set ylim in axes in GUI ?

My program works around the user input provided from user. It generates graph accordingly.But somehow I had set or default value for axes in Matlab GUI is [999 999] in my case, but my y-axis can be more than that. When i enter the value more than 999 in the text box, GUI didn't execute the function written for pushbutton. This works fine below 1000. I am wondering how can i change the Ylim to auto ?

When you enter 1000 in the 2nd input(Please refer figure), it gives following error:

Error using matlab.graphics.axis.Axes/set
Value must be a 1x2 vector of numeric type in which the second element is larger than the first and may be Inf

Error in axis>LocSetLimits (line 276)
    set(ax,...

Error in axis (line 105)
                LocSetLimits(ax(j),cur_arg,names);

Error in plotray (line 134)
      axis( [ rmin, rmax, zmin, zmax ] )

Error in UnderwaterRayToolbox>pushbutton1_Callback (line 194)
plotray( 'munkp' ), box on, hold on

Error in gui_mainfcn (line 95)
        feval(varargin{:});

Error in UnderwaterRayToolbox (line 49)
    gui_mainfcn(gui_State, varargin{:});

Error in
matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)UnderwaterRayToolbox('pushbutton1_Callback',hObject,eventdata,guidata(hObject)) 
276     set(ax,...

Can someone suggest how to change the Axes Ylimit to Auto or set to user input ??

Answer 1

[Jay Patel]

The problem has been solved. main *.m file has to have the ylim function before plotting which controls the plotting. and then either you can copy the axes from figure or call the figure in GUI, both worked.

Thanks everyone, specially Adam and Rik.

Jay

[Adam Danz]

That doesn't sound correct. Generally ylim() should be set after plotting unless the hold-on is executed between the call to ylim() and plot(). Also, what does it mean to "copy the axes from figure" or "call the figure in GUI"? The GUI is the figure.

Although this may have eliminated your problem, it doesn't sound like a general solution. Instead, it's more likely that this comment is a more general solution to the problem (unless there's something strange going on in plotray() which is a 3rd party function).

[Jay Patel]

Hi adam,

plotray is also a function which is called by bellhop to plot the output. And what i mean to say by "copy the axes from the figure" is just MAKE AXES CURRENT FIRST and "call the figure in GUI" means copying the current figure(plotted by plotray function)'s all objects in GUI's axes children. This is more specific to my case here. I'm very sorry for not being so much descriptive. In general your answer would make more sense.

Thanks.

[Adam Danz]

If you can, open up plotray() and create an input that allows you to specify the axis handle. If you can do that, no need to use axes() to make an axis current and no need to create a figure and then copy its content into your GUI's axes.

Answer 2

[Adam Danz]

ylim(h,[a,b]) 
% h: the axis handle 
% [a,b] the limits (a<b)

https://www.mathworks.com/help/matlab/ref/ylim.html

Make sure you're specifying the axis handle (h). Otherwise, the callback function might change the y axis limit of another axes.

[Jay Patel]

Hello Adam,

Thanks for quick response. It didn't work. It still gives me the same error message.

ylim(handles.axes1,[-inf 1]) 
% h: the axis handle 
% [a,b] the limits (a<b)

Thanks.

[Rik]

Setting the YLim property of the axes has the same effect.

My suspicion is that the number was not converted to a numeric from the char input. But without the code it is impossible to tell.

[Jay Patel]

Hi Rik,

Below is the code for callback function of source depth:

%---------Source Depth Callback Function-----------%
function sd_Callback(hObject, eventdata, handles)

    newzs = str2double(get(handles.sd,'String'));
    setappdata(handles.sd,'mydata3',newzs);
end    
%---------End Source Depth Callback Function-----------%


function sd_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end
end

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
%------------- New Source Depth---------------%
X1=sprintf('%d is the old source depth',zs);
disp(X1)
val3 = getappdata(handles.sd,'mydata3');
display(val3)
zs = val3;
display(zs)
Y1=sprintf('%d is the new source depth',zs);
disp(Y1)
%------------- End Source Depth---------------%
end

%------------- Plotting in axis window---------------%
%h =gcf;
%ax = h.CurrentAxes;
%f = get(handles.axis1,'string'); %axes(handles.axes1);
% set('CurrentAxes','axes1')
axes(handles.axes1);
%set(handles.figure,'CurrentAxes',handles.axes)
%set(handles.axes1, 'Ylim', [0 -10000]);
ylim(handles.axes1,[-1000 1]) 
% h: the axis handle 
% [a,b] the limits (a<b)
plotray( 'munkp' ), box on, hold on

findall(0,'type','axes')
handles.axes1

%------------- Plotting end axis window---------------%

This might help. i might suspect that there is something wrong with code.

Thanks.

[Adam Danz]

Your pushbutton callback function is never reaching the row where you set the ylim. Assuming this code is directly copied from your m file, you need to move the 'end' to the true end of your function.

function pushbutton1_Callback(hObject, eventdata, handles)
%------------- New Source Depth---------------%
X1=sprintf('%d is the old source depth',zs);
disp(X1)
val3 = getappdata(handles.sd,'mydata3');
display(val3)
zs = val3;
display(zs)
Y1=sprintf('%d is the new source depth',zs);
disp(Y1)
%------------- End Source Depth---------------%



end % <----  YOUR FUNCTION ENDS HERE 
% WHAT FUNCTION IS CONTROLING THIS BELOW?????





%------------- Plotting in axis window---------------%
%h =gcf;
%ax = h.CurrentAxes;
%f = get(handles.axis1,'string'); %axes(handles.axes1);
% set('CurrentAxes','axes1')
axes(handles.axes1);
%set(handles.figure,'CurrentAxes',handles.axes)
%set(handles.axes1, 'Ylim', [0 -10000]);
ylim(handles.axes1,[-1000 1]) % 
% h: the axis handle 
% [a,b] the limits (a<b)
plotray( 'munkp' ), box on, hold on
findall(0,'type','axes')
handles.axes1

[Rik]

Need to stick to your choice: either use the default GUIDE convention of not closing any function with end, or use the modern convention of closing all functions with end. The two don't mix and cause a lot of trouble when you try to mix them.

Adam points at an important point: it is unclear how the call to YLim can be reached in the first place. Note that even in a callback you can use breakpoints to go through the code step by step.

[Jay Patel]

Hi Adam,

This is the actual code, I do have more functions but I figure out the only problem is plotting in the axis as I don't know how exactly i can control the child of axes function in MATLAB.

function pushbutton1_Callback(hObject, eventdata, handles)
%------------- New Source Depth---------------%
X1=sprintf('%d is the old source depth',zs);
disp(X1)
val3 = getappdata(handles.sd,'mydata3');
display(val3)
zs = val3;
display(zs)
Y1=sprintf('%d is the new source depth',zs);
disp(Y1)

%------------- Plotting in axis window---------------%
%h =gcf;
%ax = h.CurrentAxes;
%f = get(handles.axis1,'string'); %axes(handles.axes1);
% set('CurrentAxes','axes1')
axes(handles.axes1);
%set(handles.figure,'CurrentAxes',handles.axes)
%set(handles.axes1, 'Ylim', [0 -10000]);
ylim(handles.axes1,[-1000 1]) % 
% h: the axis handle 
% [a,b] the limits (a<b)
plotray( 'munkp' ), box on, hold on
findall(0,'type','axes')
handles.axes1

end

Thanks.

[Adam Danz]

Do the plotting first, then set the axis limits. Always specify the axis handle.

% YOU ONLY NEED THIS LINE BELOW IF plotray() DOES NOT HAVE A PARENT INPUT
axes(handles.axes1);  % MAKE AXES CURRENT FIRST


% DOES THIS FCN HAVE A PARENT INPUT SUCH AS plotray(handles.axes1,'munkp') ?
plotray( 'munkp' );  

box(handles.axes1,'on') 
hold(handles.axes1,'on')
ylim(handles.axes1,[-1000 1]) % 

[lamine moahmed]

Hi jay patel can you halp me

i wont to set xlim and ylim of axes when i plot data of workspace

but when i plot the xlim and ylim change

thank you

[Adam Danz]

Plot the data first, then set the axis limits.

Alternativey, set the axis limits first, then "hold on", then plot the data.