Function RunButtonPushed(app, event) nothing happens when button is pushed.

% Properties that correspond to app components

properties (Access = public)

UIFigure matlab.ui.Figure

ResolutioninnmEditField matlab.ui.control.NumericEditField

ResolutioninnmEditFieldLabel matlab.ui.control.Label

RunButton matlab.ui.control.Button

centeredwavelengthnmEditField matlab.ui.control.NumericEditField

centeredwavelengthnmEditFieldLabel matlab.ui.control.Label

Resincm1EditField matlab.ui.control.NumericEditField

Resincm1EditFieldLabel matlab.ui.control.Label

end

methods (Access = private)

% Button pushed function: RunButton

function RunButtonPushed(app, event)

ScriptPath = pwd; % Find current path to script as start point

% converts given spectral resolution to theoretical resolution limit

% ignoring pixel size

% initializing variables

wavenumsp = app.centeredwavelengthnmEditField;

wavelengthcenter = app.Resincm1EditField; % user input for centeral wave in um

wavenumcenter = 1/(wavelengthcenter*10000); % converting wavelength to wavenumber

delwave = wavenumcenter - wavenumsp; % finding delta of wavenumbers

Result = ((1/delwave)*1E7)-wavelengthcenter*1000; % Result in nm

app.ResolutioninnmEditField.Value = wavenumsp;

end

end

This is the code above, it's a very simple function I just need it to display the calculated value nothing happens when I push the button, the code runs fine just the button doesn't work.

Answer 1

[Voss]

function RunButtonPushed(app, event)
%     ScriptPath  = pwd;                              % Find current path to script as start point
    % converts given spectral resolution to theoretical resolution limit
    % ignoring pixel size
    % initializing variables
    
%     wavenumsp = app.centeredwavelengthnmEditField;
    wavenumsp = app.centeredwavelengthnmEditField.Value;
    
%     wavelengthcenter = app.Resincm1EditField; % user input for centeral wave in um
    wavelengthcenter = app.Resincm1EditField.Value; % user input for centeral wave in um
    
    wavenumcenter = 1/(wavelengthcenter*10000); % converting wavelength to wavenumber
    delwave = wavenumcenter - wavenumsp; % finding delta of wavenumbers
    Result = ((1/delwave)*1E7)-wavelengthcenter*1000; % Result in nm 
    
%     app.ResolutioninnmEditField.Value = wavenumsp; 
    app.ResolutioninnmEditField.Value = Result; % Use the Result just calculated?
end 

[Bradley]

I tried this, and it still did not work. When I hit the run button nothing populates the text field.

[Voss]

Please post the current relevant code, along with any error messages in the command window.

[Bradley]

function RunButtonPushed(app, event)

% ScriptPath = pwd; % Find current path to script as start point

% converts given spectral resolution to theoretical resolution limit

% ignoring pixel size

% initializing variables

% wavenumsp = app.centeredwavelengthnmEditField;

wavenumsp = app.centeredwavelengthnmEditField.Value;

% wavelengthcenter = app.Resincm1EditField; % user input for centeral wave in um

wavelengthcenter = app.Resincm1EditField.Value; % user input for centeral wave in um

wavenumcenter = 1/(wavelengthcenter*10000); % converting wavelength to wavenumber

delwave = wavenumcenter - wavenumsp; % finding delta of wavenumbers

Result = ((1/delwave)*1E7)-wavelengthcenter*1000; % Result in nm

% app.ResolutioninnmEditField.Value = wavenumsp;

app.ResolutioninnmEditField.Value = Result; % Use the Result just calculated?

end

There are no errors, the app runs fine it seems the function just never runs, I hit the run button and nothing happened.

[Voss]

Is the button's callback set up properly? That is to say, can you verify that the ButtonPushedFcn of app.RunButton is set to the function RunButtonPushed in AppDesigner?

https://www.mathworks.com/help/matlab/creating_guis/write-callbacks-for-gui-in-app-designer.html

[Bradley]

Ahh that would be why, I was just typing the code including the function I did not know you had to select call back thank you!

[Voss]

You're welcome! Glad you got that sorted out!