Return to previous zoom level/location

Question

Anon 2011-3-25

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/3962-return-to-previous-zoom-level-location

评论： Gary 2015-12-22

采纳的回答： Matt Fig

在 MATLAB Online 中打开

Let's say I have created a figure using imagesc

imagesc(X(1,:),Y(:,1),I)

and I have then used the manual zoom tool to look at a particular region in the plot. I then do some changes to I (e.g. I2 = imdilate(I,ones(3))) and plot it again, say

imagesc(X(1,:),Y(:,1),I2)

and I want to zoom at the same extent again. What would be best practice to do so?

So far I tried to employ the Xlim and Ylim axis properties, such that

imagesc(X(1,:),Y(:,1),I); % zoom in somewhere manually
b = get(gca,'Xlim');
c = get(gca,'Ylim');

and then

imagesc(X(1,:),Y(:,1),I2)
set(gca,'Xlim',b,'Ylim',c)

but this won't allow me to zoom out afterwards.

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Answer 1

Matt Fig 2011-3-25

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/3962-return-to-previous-zoom-level-location#answer_5683

在 MATLAB Online 中打开

Here is an example.

load clown
image(X)% Now zoom in on the eye.
% After zooming in, do this:
.

.

L = get(gca,{'xlim','ylim'});  % Get axes limits.
X = ind2rgb(X,map);
image(X)
zoom reset
set(gca,{'xlim','ylim'},L)
% Now the plot should be zoomed in around the eye again, but you can also zoom out.