Plotting patchm or fillm on Geoplot or geoscatter

How can I plot a filled polygon using fillm or patchm on geoscatter?

I get:

Error using gcm (line 25)

Not a map axes.

Error in patchm (line 44)

mstruct = gcm;

Thanks!

Answer 1

[Naga]

Hello Navad,

To plot a filled polygon on a map using `fillm` or `patchm`, you need to ensure that you are working with a map axes. The error you are encountering indicates that the current axes is not recognized as a map axes. Here is an example to plot a filled polygon using 'fillm' on a map axes:

% Create a figure
figure;

% Initialize map axes with a Mercator projection
ax = axesm('MapProjection', 'mercator', 'Frame', 'on', 'Grid', 'on');
% Set the map limits for latitude and longitude
setm(ax, 'MapLatLimit', [33 36], 'MapLonLimit', [-119 -116]);

% Define latitude and longitude for the polygon vertices
lat = [34, 34, 35, 35];
lon = [-118, -117, -117, -118];

% Plot the filled polygon on the map axes
fillm(lat, lon, 'r'); % 'r' specifies the color red

% Add title and labels
title('Filled Polygon using fillm on Map Axes');
xlabel('Longitude');
ylabel('Latitude');