getting the axis position correctly

Question

dk 2011-4-20

1
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此问题的直接链接

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编辑： Yujendra Mitikiri 2021-10-23

I can get the position of the axis easily

figure,plot([0 1], [0 1])
axis equal
AxesHandle=findobj(gcf,'Type','axes');
get(AxesHandle,'Position')

However when I modify the axis limits the axis position does not update.

axis tight
get(AxesHandle,'Position')

still gives me the same answer. How do I get the correct axis position in the second case?

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Answer 1

Matt Fig 2011-4-20

2
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在 MATLAB Online 中打开

What changes is the tightinset property and plotboxaspectratio.

figure,plot([0 1], [0 1])
axis equal
AxesHandle=findobj(gcf,'Type','axes');
pt1 = get(AxesHandle,{'Position','tightinset','PlotBoxAspectRatio'});
pt1{:}
axis tight
pt2 = get(AxesHandle,{'Position','tightinset','PlotBoxAspectRatio'});
pt2{:}

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Matt Fig 2011-4-20

All you are doing here is moving the figure around. Of course this doesn't change the axes properties! Why would you think that moving the figure around would change the axes properties?

Also, you can use GCA to get the axes handle, just like GCF gets the figure handle...

Matt Fig 2011-4-20

If you want to get the distance between the edge of the figure and the axis plot area, you need to stop using normalized units and switch to pixels. Then you will see a change.....

figure,plot([0 1], [0 1])

set(gcf,'position', [104 468 1831 420])

axis equal

axis tight

set(gca,'units','pix')

pt1 = get(gca,{'Position','tightinset'}); % [left bottom right top]

set(gca,'units','norm')

pt1{:}

input('Hit return to continue...');

set(gcf,'position', [104 468 793 420])

set(gca,'units','pix')

pt2 = get(gca,{'Position','tightinset'});