CODEWITHSUNDEEP
matlab
Abhishek Bhatia
Abhishek Bhatia

Reputation: 9796

Plotting on the same figure with a new handle

I want to display a series of images to a user. For each image request input from the user in the form of a mouse click on the image. Store the coordinates of each click in a matrix. Thus, in end having a matrix of dimension num_images x 2.

function main()
    clc;
    global agent_pos;
    ....
    for i=1:numel(img_names),
        imname = [ path_img img_names{i}];
        im0 = imread(imname);
        imageHandle =imshow(im0);%_____________displays the image
        set(gcf,'units','normalized','outerposition',[0 0 1 1])
        set(imageHandle,'ButtonDownFcn',@ImageClickCallback);
        uiwait(gcf);
    end

end

function coordinates=ImageClickCallback ( objectHandle , eventData )
    axesHandle  = get(objectHandle,'Parent');
    coordinates = get(axesHandle,'CurrentPoint'); 
    coordinates = coordinates(1,1:2);
    global agent_pos;
    agent_pos=[agent_pos;coordinates]; %___ add these coordinates for each image
    close gcf;
end

My only issue here is that instead of creating a new window after user click , can I somehow display the image on the current figure itself.

I tried to replace close(gcf) with clf or cla. But the new image appears in a new window only that too after I close the current window. I think it's something related to the handle attached to the figure.

Upvotes: 0

Views: 53

Answers (1)

Lior Cohen
Lior Cohen

Reputation: 5735

Use uiresume instead of closing the figure.

Upvotes: 1

Related Questions