Adding Geo-referenced Map as Background in MATLAB Plot

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Elio
Elio 2024-10-26，21:20
评论： Elio 2024-10-27，11:54
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!

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回答（1 个）

Piyush Kumar
Piyush Kumar 2024-10-27，7:36
Ran in:
@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-');
  2 个评论
Walter Roberson
Walter Roberson 2024-10-27，7:43

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

Likewise fill() must be replaced by fillm()

Elio
Elio 2024-10-27，11:54
I don't think geoshow will work since I'm using a local reference frame. I know the geographic coordinates of only two points.

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