Adding Geo-referenced Map as Background in MATLAB Plot

I have a complex figure that combines several plots, including a plot of waypoints marking the path for a drone. I know the geographic coordinates of two of these waypoints and I want to add a geo-referenced map as the background for the figure. Basically, I want the path (and the other elements) to be shown on a geographic map in the corresponding location.

How can I achieve this? Everything I've tried didn't work. I think it's because the figure is too complex; it needs something much simpler than the usual approaches. Any code snippets or guidance on how to overlay a map on my existing plot would be greatly appreciated!

Thank you!

Answer 1

[Piyush Kumar]

@Elio,

To add a geo-referenced map as a background to your MATLAB plot, you can follow these simple steps -

1. Load the Geo-referenced Map: Use the geoshow function to display the map.
2. Overlay Your Plot: Plot your waypoints and other elements on top of the map.

For example,

% Load the geo-referenced map
figure;
worldmap('World');
geoshow('landareas.shp', 'FaceColor', [0.5 1.0 0.5]);

% Plot your waypoints (example coordinates)
lat = [34.0522, 36.1699, 40.7128]; % Latitude
lon = [-118.2437, -115.1398, -74.0060]; % Longitude
geoshow(lat, lon, 'DisplayType', 'point', 'Marker', 'o', 'Color', 'r');

% Add your custom plot elements
hold on;
% Example: plot a line connecting the waypoints
plotm(lat, lon, 'r-');

[Walter Roberson]

Notice that plot() had to be replaced by plotm()

Likewise fill() must be replaced by fillm()

[Elio]

I don't think geoshow will work since I'm using a local reference frame. I know the geographic coordinates of only two points.