MATLAB: Help please. i have 2 axes plots on the GUI , i want to reset the output plot(clear the previous output from plot) as i press the load image image button.

guiMATLAB

please help

Best Answer

In the LoadImage button callback:

% Reset first axes.
axes(handles.axes1);  % Whichever axes you want to reset.

cla('reset');
% Reset second axes.
axes(handles.axes2);  % Whichever axes you want to reset.
cla('reset');
axes(handles.axes1);  % Whichever axes you want to display in.
imshow(yourImage);

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Inside the callback for that button, use set to set all the controls to the values you want:

set(handles.text1, 'String', 'Hello User');
set(handles.scrollbar, 'Value', 42);
set(handles.radioButton, 'Value', 'off');
axes(handles.axesPlot);
cla reset;

and so on.

MATLAB: Plots

If you add the following block of code to the end, it will show the wave propagating along the x-axis, but I don't think this is exactly what you envision - particularly since the variable PHI seems to be defined, but not used in the plot. I would imagine that defining a 2-dimensional variable where each column represents the amplitude at a time step and each row gives the amplitude of a specific x-location over time would be useful.

while u_0(end)==0
    u_0 = [ u_0(end-5:end) u_0(1:end-6) ];
    plot(x,u_0,'.-b');
    pause(0.05)
end

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MATLAB: Plots

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