How do I plot points on a map in with the mapping tool?

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Shane 2014-6-11

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https://ww2.mathworks.cn/matlabcentral/answers/133639-how-do-i-plot-points-on-a-map-in-with-the-mapping-tool

编辑： Geoff Hayes 2014-6-11

I have the mapping toolbox function. I brought up a map of the U.S. with lat/lon axes. All I need to do now I plot points on the map where certain cities/areas are. It does not need to be exact (but preferred), so any type of brush or something would work. How do I do this?

Here is what I have so far:

figure; ax = usamap({'CA','ME'});

set(ax, 'Visible', 'off')

latlim = getm(ax, 'MapLatLimit');

lonlim = getm(ax, 'MapLonLimit');

states = shaperead('usastatehi',... 'UseGeoCoords', true, 'BoundingBox', [lonlim', latlim']);

geoshow(ax, states, 'FaceColor', [0.5 0.5 1])

lat = [states.LabelLat];

lon = [states.LabelLon];

tf = ingeoquad(lat, lon, latlim, lonlim);

textm(lat(tf), lon(tf)) ...