placenames

By default, the geocode function gets a shape object for a specified placename by searching an installed list of placenames. Get the installed list of placenames.

names = placenames;

When you do not specify an administration level, the list contains the names of world regions, US states, and world cities. View the first 10 placenames in the list.

names(1:10)

ans = 10×1 string
    "Aaland Islands"
    "Abidjan"
    "Abu Dhabi"
    "Accra"
    "Adana"
    "Addis Ababa"
    "Adelaide"
    "Aden"
    "Afghanistan"
    "Africa"

Create a geospatial table that contains a point shape for the city of Adelaide by using the geocode function. Display the point shape on a map.

geocodedGT = geocode("Adelaide");
geoplot(geocodedGT,"*")
geolimits([-40 -30],[131 146])

The installed list of placenames contains the names of world regions, US states, and world cities. Get a list that contains only the names of world regions.

names = placenames("region");

View the first 10 placenames in the list.

names(1:10)

ans = 10×1 string
    "Aaland Islands"
    "Afghanistan"
    "Africa"
    "Africa and Eurasia"
    "Agalega Island"
    "Albania"
    "Alderney"
    "Algeria"
    "American Samoa"
    "Andorra"

Create a geospatial table that contains an area of interest (AOI) for the Aaland Islands by using the geocode function. Display the boundary of the AOI on a map.

geocodedGT = geocode("Aaland Islands");
geoplot(geocodedGT,FaceColor="none")

The geocode function issues an error when you specify a placename that has multiple matches. You can find an exact match for a placename by searching the installed list.

Get a list that contains only the names of US states. Then, determine which placenames contain new by using the contains function. The contains function returns a logical value for each placename, where values of 1 correspond to placenames that contain new.

names = placenames("state");
idxNew = contains(names,"new",IgnoreCase=true);

Extract the placenames that contain new.

containsNew = names(idxNew)

containsNew = 4×1 string
    "New Hampshire"
    "New Jersey"
    "New Mexico"
    "New York"

Create a geospatial table that contains an AOI for New Jersey by using the geocode function. Extract the AOI from the table. Then, create a map using the latitude and longitude limits of the AOI. Note that, to maintain the aspect ratio of the map, the geolimits function typically uses wider limits than the limits you specify.

geocodedGT = geocode("New Jersey");
aoi = geocodedGT.Shape;

[latlim,lonlim] = bounds(aoi);
geolimits(latlim,lonlim)