Can I plot a digraph on a geomap?

Trevor John D Silva

2021 11 11

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Hey there!

Similar to the question asked here (https://www.mathworks.com/matlabcentral/answers/472642-undirected-graph-network-with-latitude-and-longitude-as-node), I want to know if there is a way I could apply a digraph on geomap.

I couldn't find a way to create nodes with coordinate data (lat & lon), and thus gave arbitary ids (1,2,3...) for the nodes instead. After creating an array of targets (with similar id information), I make an arbitary array of weights and then plot it the graph.

 G = digraph(s,t,w,);
 plot(G, 'XData',x,'YData',y)
 

Because the problem is originally a geo problem, my x and y data is in the form of coordinates. However, is there a way to connect this information to GeoAxes so that I can tell Matlab to "accurately" overlay the digraph over the geomap?

A (probably messy) of doing it is to use an image as a background - which (I'm guessing) won't be reliable when reszing the plot.

PS: I've read the blog post (https://www.mathworks.com/matlabcentral/answers/472642-undirected-graph-network-with-latitude-and-longitude-as-node), while helpful for sure, Loren uses polygons to create the map of the US, which is overkill for what I want to achieve.

PPS: If you need some more info, please let me know in case I must've missed out anything.