Multiselect from listbox and apply to subplot

Question

Jason 2014-6-18

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https://ww2.mathworks.cn/matlabcentral/answers/135054-multiselect-from-listbox-and-apply-to-subplot

编辑： Dishant Arora 2014-6-19

Hi. I have a listbox that I populate with say 100 images from a particular directory. I want to be able to select 7 of them, rotate them 90 degrees and then display next to each other in a subplot.

This is my code below for a single image selection, (note that the x position of the position vector for subplot requires the user to change a number in an edit box).

Thanks Jason

    ListOfImageNames = get(handles.listbox1, 'string')
    baseImageFileName = strcat(cell2mat(ListOfImageNames(Selected)));
    fullImageFileName = [folder '\' baseImageFileName];  % Prepend folder.
  
    figure(100);
    file=fullImageFileName
    IM = imread(file);
    IM=imrotate(IM,angle);
    subpos
    x=0.101*(subpos-1)
    positionVector = [0.0+x, 0.8, 0.1, 0.1];
    subplot('Position',positionVector);
    %subplot(4,7,subpos);
    imagesc(IM,[0 5000])
    colormap (gray);
    axis off;
    set(gca,'ytick',[]);
    set(gca,'xtick',[]);

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Answer 1

Dishant Arora 2014-6-18

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/135054-multiselect-from-listbox-and-apply-to-subplot#answer_141508

Change the max and min property of listbox. Refer this link : http://www.mathworks.in/help/matlab/ref/uicontrol_props.html#bqxoinq

If max-min >1, you can select multiple elements from listbox.

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Jason 2014-6-19

How do you then access those selected items? Thanks

Dishant Arora 2014-6-19

编辑：Dishant Arora 2014-6-19

在 MATLAB Online 中打开

Use ctrl or shift key to access multiple items. Listbox callback is executed at every mouse click or keypress, so you might have to associate a push button with it to direct a callback. See this prototype:

function pushbutton1_callback(hObject , eventdata , handles)
fileNames = get(handles.listbox1 , 'string')
ind = get(handles.listbox1 , 'value')
filesToAccess = fileNames(ind)

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