Is there an example of how to add a callback to drawcircle to get the current position?

Question

Marc McLean 2019-3-9

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/449180-is-there-an-example-of-how-to-add-a-callback-to-drawcircle-to-get-the-current-position

回答： Walter Roberson 2019-3-9

I need to get the curent radius and position of the circle using drawcircle() in GUIDE. Is there an example of how to add a callback? I'm not sure how to use the images.roi.CircleMovingEventData class

Thank you

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Answer 1

Walter Roberson 2019-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/449180-is-there-an-example-of-how-to-add-a-callback-to-drawcircle-to-get-the-current-position#answer_364630

在 MATLAB Online 中打开

h = drawcircle('Center', [500, 500], 'Radius', 100, 'StripeColor', 'red');   %adjust parameters as needed
L1 = addlistener(h, 'ROIMoved', @(hObject, event) disp(event.CurrentCenter))  %example callback