addition of image files during compiling to make a standalone app

I have created an app design in MATLAB. This app shows the images in the right tab for choosen type in the left tab. Images are stored in the current folder. while running app in MATLAB, app is running smoothly without any error and also showing images as per requirement. then I used share option to make a standalone app. in the MATLAB compiler section, I have uploaded all the necessary files including images and clicked on packages. It made the app in a specific project folder. but after running the application from the folder named 'for_testing', images are not showing but the other things are working smoothly.

even after adding the image files in the the files required in the application to run, why the image is not showing in standalone app.

Answer 1

[Image Analyst]

Did you use the deploytool or the mcc command? If you used the mcc command, did you use the -a option to attach your files. I always use the mcc command and usually don't include files. I use the Centurion Setup program to bundle my executable and all my other files that are needed into an installation package. Th Centurion Setup program is by far the best, easiest, and most intuitive of the installation package building programs available. That way I know what files are getting shipped and where they will live. With the compiler, it's a mystery. Anyway, see the FAQ:

https://matlab.fandom.com/wiki/FAQ#Why_can't_my_standalone_compiled_executable_find_my_files?

and

https://matlab.fandom.com/wiki/FAQ#My_standalone_executable_won't_run_on_the_target_computer._What_can_I_try?

and it may give you some clues about the mystery of where files get extracted and stored when you deploy a MATLAB executable. It's a long, complicated story that I can't elaborate on now.

[SUMAN]

Thank you so much for your response. But I have not used deploytool or mcc command. If I have to use deploytool or mcc command, how to use it for .mlapp file. At what line means at what position inside the methods of property, mcc command should be inserted?

Please guide me.

[Image Analyst]

You can do

mcc yourmfile.m -a "filename1" -a "filename 2"

and so on. You need the quotes if your filename is not in the current folder or has spaces in the full path (base file name or folder names).

[SUMAN]

Thank you for your response. It is working properly. But when I copied the folders containing .exe file to any other computer, it is not working. Prompted that file in the path does not exist.

[Image Analyst]

Does the first FAQ link not explain how to get rid of that error? You need to use fullfile to explicitly specify the full file path. Just to be sure, leave off the semicolon after you create the filename or use fprintf to print it out to the console window.

[SUMAN]

please see my code for image ploting

function PlotDisplaySwitchValueChanged(app, event)

value = app.PlotDisplaySwitch.Value;

if strcmp(value, 'On')

[sg_label, sg_full_label] = app.getSubgradeSuffix();

[load_label, load_full_label] = app.getLoadTypeLabel();

% Compose image filenames

img_1 = ['stress_blst_' sg_label '_' load_label '.png'];

img_2 = ['stress_sbg_' sg_label '_' load_label '.png'];

img_3 = ['settlement_blnkt_' sg_label '_' load_label '.png'];

img_4 = ['settlement_sbg_' sg_label '_' load_label '.png'];

% Use correct path for standalone (deployed) app

if isdeployed

img1 = fullfile(ctfroot, img_1);

img2 = fullfile(ctfroot, img_2);

img3 = fullfile(ctfroot, img_3);

img4 = fullfile(ctfroot, img_4);

end

imgPath1 = fullfile(pwd, 'NEWAPP',img_1); % Assuming images are in a folder named 'images'

imgPath2 = fullfile(pwd, 'NEWAPP',img_2); % Assuming images are in a folder named 'images'

imgPath3 = fullfile(pwd, 'NEWAPP',img_3); % Assuming images are in a folder named 'images'

imgPath4 = fullfile(pwd, 'NEWAPP',img_4); % Assuming images are in a folder named 'images'

try

img1 = imread(imgPath1);

img2 = imread(imgPath2);

img3 = imread(imgPath3);

img4 = imread(imgPath4);

% Display image in your app

catch ME

disp(['Error loading image: ', ME.message]);

end

% Set Stress Tab active and update images

app.TabGroup2.SelectedTab = app.PLOT1Tab;

if isfile(img_1)

app.StressBelowBallastImage.ImageSource = img_1;

else

app.StressBelowBallastImage.ImageSource = '';

end

app.TabGroup2.SelectedTab = app.PLOT2Tab;

if isfile(img_2)

app.StressBelowSubgradeImage.ImageSource = img_2;

else

app.StressBelowSubgradeImage.ImageSource = '';

end

% Set Settlement Tab active and update images

app.TabGroup2.SelectedTab = app.PLOT3Tab;

if isfile(img_3)

app.SettlementTopBlanketImage.ImageSource = img_3;

else

app.SettlementTopBlanketImage.ImageSource = '';

end

app.TabGroup2.SelectedTab = app.PLOT4Tab;

if isfile(img_4)

app.SettlementTopSubgradeImage.ImageSource = img_4;

else

app.SettlementTopSubgradeImage.ImageSource = '';

end

end

end

even after applying your instructions, it is runnning in the same computer but not in other computer. As it prompts unable to find the image file.

mcc -m UIC_RDSO_PROJECT.mlapp -a 'blnkt_settlement_17T.mat' -a 'blnkt_settlement_25T.mat' -a 'blnkt_settlement_32_5T.mat' -a 'images';

[Image Analyst]

I still see semicolons. Did you not see my instruction where you leave off the semicolon so that you can see the actual filename in the console window? Then you can see if it's really the location you expect. And use fullfile with img_1. And why do you assign img1 (no underline) in the "if deployed" only to immediately reassign it after the try? And it can lead to confusion if you have both img1 and img_1, similar filenames even though neither one is really an image variable (they're strings!).