Drawpolygon not working with geoaxes

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Murat Panayirci
Murat Panayirci 2022-10-6
评论： Murat Panayirci 2022-10-13
Hi,
I am developing a GUI with app designer, when I want to enable users to select a region interactively on a geoaxes. I am using the drawpolygon function, which does not seem to work with geoaxes (it works on a regular axis). I get following error:
Warning: Error occurred while executing the listener callback for event WindowMousePress defined for class matlab.ui.Figure:
Dot indexing is not supported for variables of this type.
Error in imageslib.internal.app.utilities.isAxesInteractionModeActive (line 17)
TF = ax.InteractionContainer.CurrentMode ~= "none";
Error in images.roi.internal.ROI/isModeManagerActive
Error in images.roi.internal.ROI/waitForButtonPressToBegin
Error in images.roi.internal.ROI
is drawpolygon not available for geoaxes or is there an option I need to set correctly for this axes type. Any help would be appreciated.
Thanks!
Murat

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Adam Danz
Adam Danz 2022-10-6
This is supported in the latest release, MATLAB R2022b.
The example below produced the results you described when run in R2022a but is functional in R2022b.
uif = uifigure();
gx = geoaxes(uif);
drawpolygon(gx)
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Adam Danz
Adam Danz 2022-10-12
Can you think of any workaround
Assuming it's not possible to update to 22b, you could replace the uifigure with a regular figure and it will work in 22a.
fig = figure();
gx = geoaxes(fig);
drawpolygon(gx)
If this is within an app, then it gets more complicated. You'd need to generate the figure outside of the app, using a regular figure as shown above. copyobj may come in handy to copy the entire axes from your uifigure to a regular figure. Then, when the drawpolygon actions are done, you could copy the results to the axes in your app and close the external figure.

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