Cannot get zoom post-callback to work on UIAxes

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meghannmarie 2020-10-14

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/613126-cannot-get-zoom-post-callback-to-work-on-uiaxes

评论： meghannmarie 2020-10-14

I cannot get the zoom post-callback to work on UIAxes in app designer. The pre-callback works fine. Here is what I have which is embedded in the app startup function:

            h = zoom(app.UIAxes);
            h.ActionPreCallback = @myprecallback;
            h.ActionPostCallback = @mypostcallback;
            h.Enable = 'on';
            
            function myprecallback(obj,evd)
                disp('A zoom is about to occur.');
            end
            function mypostcallback(obj,evd)
                disp('A zoom has occurred.');
            end

I followed the example in the help and it works of course, but it is not on a UIAxes.

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meghannmarie 2020-10-14

So my whole point of using a post-callback was to prevent user from using zoom to zoom out past my axis limits, and in 2020b it wont let them by default. So didnt neven need to set a post-callback!

meghannmarie 2020-10-14