MATLAB: List box with strings, Append those strings in the title of the figures when clicking on it.

list boxMATLAB

I have a List box. Which has strings say red, blue, green. An image is also there. when clicking the red, it should appear on the title of the figure, likewise next by clicking blue, it should append with red, likewise green also.

Best Answer

Get the string property of the listbox to get all the items in the listbox. Get the value property to get which one on selected and use that as an index into the list of all the items. Then use sprintf() to create your string and use title() to display it atop the image.

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MATLAB: IN GUI related with appending strings

At first omit the nervous "clc; clf; clear all; close all;". It is a waste of time even and especially when posting example code in the forum. Is there any reason to kill all my work, when I try to run your code?

I use a separate function for a better readability:

figure;
ImageH = imshow('attachment.jpg');
AxesH  = ancestor(ImageH, 'axes');
str = {'red', 'green', 'blue'};
hL = uicontrol('style','popup','string',str,'position', [20 20 200 30],...
               'callback', {@myCallback, AxesH});
function myCallback(src, evt, AxesH)
TitleH   = get(AxesH, 'Title');
oldTitle = get(TitleH, 'String');
StrList  = get(src, 'String');
selected = StrList{get(src, 'Value')};
if isempty(oldTitle)  
   set(TitleH, 'String', sprintf('The objects are: %s', selected));
else
   set(TitleH, 'String', [oldTitle, ', ', selected]);
end

MATLAB: Strings

Hi,

you are nearly there, I believe: suppose you write in your program at the top

myfilename = 'analysed_data1';

you just call save with

save(fullfile(path, myfilename));

Titus

PS: you might also want to take a look at uigetfile ...

Best Answer

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MATLAB: IN GUI related with appending strings

MATLAB: Strings

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