Keeping the same figure active

If i create a figure with a certain name:

   hFig = figure('Name','ALL CAMERAS', 'Resize','on', 'Position',[600 600 400 800],'numbertitle','off');

How can I call it at different time to add subplots to it. I have tried

 figure(hFig);
 montageImg = cell2mat(allImgs);
 J = imadjust(montageImg,stretchlim(montageImg),[0 1]);
 subplot(3,2,1); 
 imshow(J);

I will vary the last digit in subplot to plot to each of the 6 positions allocated for. But currently, it just opens up a new figure called "ALL CAMERAS" for each subplot I do rather than plot all to the same figure?

Is it also possible to delete all open figures except the one called ALL CAMERAS?

Thanks

Answer 1

[Guillaume]

Your algorithm should work. The imshow should appear in the subplot you've specified. Is this really the code you're using?

As for deleting all figures but hfig:

close(setdiff(findall(0,'Type','figure'), hfig)); %or you could use findobj

Answer 2

[Image Analyst]

It should not do that. Do you have it in a loop that iterates 6 times? It should not matter but put the figure(hFig) outside the loop. Which line of code is the line that actually creates the new figure?

Are these color or gray scale images? Why not just do

imshow(montageImg, []);

instead of all that stuff with J?

[Jason]

Yes it was in the loop, once taken out it works. Thanks

[Image Analyst]

I'm glad my suggestion fixed it (you can vote for it if you want to give "reputation points"), but I'm still not sure why it worked. It should not have made any difference with the code you posted as long as you were passing in hFig and hFig had the same numerical value each time.