There is no straight-forward way of doing this. axesm() does not have anything similar to a 'Parent' property. axesm() is written in terms of gca
To use axesm with a uifigure() you need to work around the fact that uifigure HandleVisibility is Off
fig = ancestor(app.panel, 'figure');
fig.HandleVisibility = 'on';
Then you have to have an axes within the panel, and make it the current axes
ax = findobj(app.panel, 'type', 'axes');
if isempty(ax)
ax = axes(app.panel);
end
fig.CurrentAxes = ax(1);
Then you can axesm
h = axesm('MapProjection','mercator');
