Adding map of the east coast to plotted lat/longs

All,

I have a GUI that plots a number of lat/longs all over the east coast and the gulf.

What I want is to underlay a map on the plotted lat/long positions.

Does anyone know how to do that?

If there is a way to do that with a normal figure, then maybe I can figure out how to implement that into my GUI.

R/, C. Atlas

Answer 1

[Thomas Koelen]

map=imread(mapimage);
imshow(map);
hold on
plot(positions,'-')

I'm not sure what kind of filetypes you have so I can't anser fully but have you tried this?

[charles atlas]

This is probably going to sound like a really stupid question, but: - What is mapimage denoting in your above code? - by positions do you mean the lat and longitudes in a 2-by-X matrix? With X denoting the number of positions that I want to plot?

Answer 2

[Kelly Kearney]

Do you have the Mapping Toolbox? Do you actually have the data for a map already... geotiff, shapefile, or something like that?

If yes to the Mapping Toolbox, it comes with a few datasets with coastline info (coast.mat, conus.mat, landareas.shp, usastatelo.shp, usastatehi.shp) as well as functions for reading in higher-resolution data that you can download separately.

If you don't have access to the Mapping Toolbox, I recommend m_map. It provides several tools for setting up a basemap for plots.