Can figure numbers be re-assigned?

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K E
K E on 9 Jun 2014
Edited: K E on 9 Jun 2014
Is it possible to re-assign a figure number , for example if I have a Figure 55 open, can I make it Figure 2 as long as I don't already have a Figure 2 open? If so how do I do this?
I have a routine that generates 60+ figures, and I delete all but 3 interesting ones. I would like to make them Figures 1,2,3 because I need to re-run the routine and generate another set of figures, and I'd like the first set to appear together in the figure order (it makes them easier to keep track of).

Accepted Answer

José-Luis
José-Luis on 9 Jun 2014
Edited: José-Luis on 9 Jun 2014
To get a list of all the existing figures:
get(0,'Children');
If figure two does not exist and you want to copy figure(55):
figure(2)
copyobj(allchild(55),2);
Get rid of figure(55):
clf(55);
And to answer your question directly. I believe once a figure number is set, you have to live with it. But there are workarounds, such as the one above.
  1 Comment
K E
K E on 9 Jun 2014
Perfect. Here is how I modified your code to automatically reassign all open figure numbers - I know that's not what my question asked, but perhaps it will help someone else.
% Get a list of all existing figures
figList = sort(get(0,'Children'));
for iOld = 1:length(figList)
figOld = figList(iOld); % This is a figure to replace
% Used later to make sure size of figure is correct
posOld = get(figOld, 'pos');
figNew = figure; % Make new figure
% Used later to make figure appear at
% default horizontal position on screen
posNew = get(figNew, 'pos');
% Copy over lines (but not formatting)
copyobj(allchild(figList(iOld)),figNew);
% Reproduce figure name and size however don't move it horizontally
set(figNew, 'Name', get(figOld, 'Name'), ...
'pos', [posNew(1:2) posOld(3:4)]);
% Get rid of old figure
close(figList(iOld));
end

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More Answers (1)

Joseph Cheng
Joseph Cheng on 9 Jun 2014
Edited: Joseph Cheng on 9 Jun 2014
This maybe a bit hard to implemented based on how you're selecting the 3 interesting ones but the function copyobj() will do the trick.
x = randi(10,1,5);
h1 = figure(1),plot(x);
figure(100);
h2 = gcf;
copyobj(allchild(h1),h2);
Here i create a random plot in figure 1. and then using gcf i get figure 100 and copy figure 1 to figure 100.

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