How to draw line with a mouse in the UI of the UIAxes in App Designer?
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Using drawline() i have attached a callback function that allows a user to draw lines on the axes. Initially, clicking the button pops up a new window to carry out the drawing, and so I specified the axes: app.UIAxes. This does not seem to work, and I get the following error: "Error using images.roi.internal.ROI/parseInputs
ROI parent must be a valid Axes object.".
I am using R2019a of MATLAB.
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Adam Danz
2019-12-4
It works fine in r2019b; there are quite a few limitations to UIAxes prior to r2019b which may be causing the problem.
function ButtonPushed(app, event)
% Draw line
drawline(app.UIAxes)
end
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