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plot figure in gui guide, to axes

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polo Mahmoud 2020-2-26

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评论： polo Mahmoud 2020-2-28

i want to plot a figure to axes in gui guide, but only the legend is showing and the xlim and ylim is not auto, i goes from 0 to 1 ( but should be auto)

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Ankit 2020-2-26

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how you code for plotting looks like?

polo Mahmoud 2020-2-26

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在 MATLAB Online 中打开

for i=1:length(av(:,1))
% figure
axes(handles.axes13);
plot(t,av(i,:),'k','LineWidth',1.8)
hold on
% figure
plot(t,Acc(VSENS(i),:),'r','LineWidth',0.8)
hold on
% plot(t,zeros(1,length(av(:,1))),'k')
% hold on
% figure
plot(t,ErrorM,'color',[0,0,0]+0.5)
if NX==1
legend('Estimated','Newmark','Error')
elseif NX==2
legend('Estimated','Measured','Error')
    end
grid on
set(gca, 'FontName', 'Times New Roman')
set(gca,'FontSize',18)
set(gcf,'color','w');
ylabel('Acceleration [m/s^2]')
xlabel('Time [s]')
title(['ME FreeDOF ',sprintf('%d',MVSENS(i))])
end

Rik 2020-2-26

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Did you check with the debugger if one of the legend calls actually runs?

It is also better practice to use explicit parent handles whenever working with a GUI.

%so this:
axes(handles.axes13);
plot(t,av(i,:),'k','LineWidth',1.8)
hold on
plot(t,Acc(VSENS(i),:),'r','LineWidth',0.8)
plot(t,ErrorM,'color',[0,0,0]+0.5)
legend('Estimated','Newmark','Error')
%becomes this:
h_plots=plot(t,av(i,:),'k','LineWidth',1.8,...
    'Parent',handles.axes13)
hold(handles.axes13,'on')
h_plots(2)=plot(t,Acc(VSENS(i),:),'r','LineWidth',0.8,...
    'Parent',handles.axes13)
h_plots(3)=plot(t,ErrorM,'color',[0,0,0]+0.5,...
    'Parent',handles.axes13)
legend(h_plots,'Estimated','Newmark','Error')
%or even better:
h_plots=plot(t,av(i,:),'k','LineWidth',1.8,...
    'DisplayName','Estimated',...
    'Parent',handles.axes13)
hold(handles.axes13,'on')
h_plots(2)=plot(t,Acc(VSENS(i),:),'r','LineWidth',0.8,...
    'DisplayName','Newmark',...
    'Parent',handles.axes13)
h_plots(3)=plot(t,ErrorM,'color',[0,0,0]+0.5,...
    'DisplayName','Error',...
    'Parent',handles.axes13)
legend(h_plots)

polo Mahmoud 2020-2-26

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Udklip17.PNG

what i get is this:

polo Mahmoud 2020-2-26

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hi rik

is says :

Unable to perform assignment because the left and right sides have a different number of elements.

Error in New_gui_polo_26_02>pushbutton28_Callback (line 2063)

h_plots(2)=plot(t,Acc(VSENS(i),:),'r','LineWidth',0.8,...

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in New_gui_polo_26_02 (line 42)

gui_mainfcn(gui_State, varargin{:});

Error in

matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)New_gui_polo_26_02('pushbutton28_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

Rik 2020-2-26

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编辑：Rik 2020-2-26

在 MATLAB Online 中打开

None of the code you show is actually changing the axes limits, so you must have done that somewhere else. And did you check what shape data is being plotted? If it is scalar it will not show up.

That is probably also the cause of the error. If no graphics object is created you will get this error. See the MWE below.

figure(1),clf(1)
h=plot(rand(2,1),rand(2,1));
h(2)=plot([],[]);

polo Mahmoud 2020-2-26

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it is vectors that i plot.

and i have checked that both the xlim and ylim is set to auto in gui, but i dont understand

polo Mahmoud 2020-2-26

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i tryied the example code :

figure(1),clf(1)

h=plot(rand(2,1),rand(2,1));

h(2)=plot([],[]);

is says : but i plotted a line

Unable to perform assignment because the left and right sides have a different number of elements.

Rik 2020-2-26

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Exactly. This is the same way in which your code fails as well. And you can even see that in your legend: only black lines, meaning that no other graphics objects are generated, so there is no valid data in your second and third plot call.

polo Mahmoud 2020-2-26

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编辑：Rik 2020-2-26

when i evaluated my gui code from matlab, it gives data for all. but when i run it through gui i gives this error

for the first part when i run my gui is says this

Line

[edit Rik: removed the dozens of repetitions that followed]

Rik 2020-2-26

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If you get a different result when calling it from your GUI, that means the code is different.

polo Mahmoud 2020-2-26

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But I use the function " Evaluate" for the gui .m file it works good

But when i run the gui and uses the "button" to evaluate it gives that error

Rik 2020-2-26

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If the input is the same, the output will be as well. You need to make sure that your GUI calls the function with the same input as when you run the function outside of the context of your GUI.

polo Mahmoud 2020-2-27

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Hi Rik

do you know why the command window says:

Line

ect...

Rik 2020-2-27

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在 MATLAB Online 中打开

I forgot to add in the semicolon, because I wrote the code in this editor, so I didn't have mlint to warn me.

h=plot(rand(4,1)) %no ; so returns an output and will display "Line"

If one call to plot generates multiple objects, it will form a vector, so you will get the result you wrote.

polo Mahmoud 2020-2-27

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Udklip17.PNG

this is what i get

polo Mahmoud 2020-2-27

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Udklip17.PNG

when i evaluate i get this

Rik 2020-2-27

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As I have said before: you need to make sure the input is the same for the two situations. What is the exact input to your function when you run it indepently, and what is the input when you call it from your GUI? Try to make a MWE so we can run your code without any other dependencies and can reproduce your issue. You can attach files with the paperclip icon if needed.

polo Mahmoud 2020-2-28