How to wrap text in title - app designer

Hi there,

I have a gui that processes image files using multiple methods. This processing creates a string variable e.g.

title1 %(that is automatically generated based on method/s the user chooses and original image filename)

When the user selects multiple techniques, the file name becomes understanderbly long. When an image is plotted using imshow, and given this variable as its title, the title strays off screen or overlays adjacent axes titles when using tiledlayout. I was wondering if there was a way to wrap this text, so it automatically breaks into multiple lines based on the length of "title1" and the size of the axes.

I don't see how the normal method would work here (i.e. breaking the string manually) because the title is generated at a different section of the gui and only assigned to "title1" when the user decides to view the image.

Any help is appreciated.

Thanks in advance

Answer 1

[Mohammed Sadiq]

You can create a multiline title using a string array as shown in this answer. Break title into multiple lines? - MATLAB Answers - MATLAB Central (mathworks.com).

The title variable can be passed through the following function to generate multiline title string arrays of desired line lengths.

function  new_title = wraptitle(old_title)
    lineLen = 25; % Specify the minimum length of each line
    our_delimiter = '$'; % Use a character that does not occur in the title
    prev = 1;
    indices = strfind(old_title,' ');
    for i=1:length(indices)
        current = indices(i);
        if current>prev+lineLen
            old_title(current) = our_delimiter;
            prev = current;
        end
    end
    new_title = split(old_title, our_delimiter);
end

[Kartikeya Singh-Freeman]

Hey Mohammed,

I'm struggling to get this function working for a title that includes variables such as

XFactor = 1

old_title = "Transform of Image with X Factor of "+ XFactor +""

Are you able to provide some asistance on what changes to the function I need to make?