Select axes for zoom in/out

Question

Mtlb Usr 2011-2-10

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https://ww2.mathworks.cn/matlabcentral/answers/1169-select-axes-for-zoom-in-out

I've got a figure with several axes. These axes are parented with a plot of several variables. Also, I've created a popup menu to select which of these axes I want to use. Until here all is OK.

However, when I select the axes and I push the zoom in button, The figure always takes the same axes.

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Answer 1

Walter Roberson 2011-2-10

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在 MATLAB Online 中打开

Are you selecting the axes by using

axes(Handle)

If so then when you push the zoom in button you would be making active the axes where the zoom in button itself is.

When you select the axes handle through the popup, record the handle of the selected axes somewhere, and then when you go to do the plot, recall that handle and use it in the plot() call,

plot(AxesHandle, x, y...)

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Mtlb Usr 2011-2-11

Hi Walter,

I tested it but I can't control which axis can zoom in/out.

for example:

ax(1)=axis(....);

ax(2)=axis(....);

hp=plot(ax(1),....);

In this example only I can zoom in ax(2) axis...

regards

Mtlb Usr 2011-2-11

Hi,

Ok, sorry I hadn't seen it. Using, axes(handle), you can control the concret axis.

regards

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Answer 2

Brett Shoelson 2011-2-10

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https://ww2.mathworks.cn/matlabcentral/answers/1169-select-axes-for-zoom-in-out#answer_1666

在 MATLAB Online 中打开

img = imread('cameraman.tif');
f = figure;
ax(1) = subplot(1,2,1);
imshow(img)
ax(2) = subplot(1,2,2);
imshow(im2bw(img,graythresh(img)));
axes(ax(1));