Problem with drawpolygon in GUI

Hi,

I have a GUI with two axes in it where I use drawpolygon to generate a roi in one of the axes. This has worked fine in Matlab 2020a, but after upgrading to Matlab 2022a I can draw the polygon, but I can no longer modify it. I have noticed that the surf that the polygon is drawn on top of changes "resolution" - bocomes less smooth - when I start drawing and think the problem is associated with the h.draw function.

I have tried the drawpolygon in a regular figure and there is works as expected so it seems associated with the axes in the GUI.

Anyone knows how to work around?

Regards,

Christoffer

Answer 1

[Githin George]

Hello Christoffer,

In order to modify the ROI polygon once you create it using “drawpolygon” function in MATLAB R2022a, you can try changing the ‘Layer’ property to ‘front’ as a workaround for the issue.

roi = drawpolygon(handles.axes,'Layer','front');