142 google maps

Using Google Maps as basemaps

Uncomment the following line to install geemap if needed.

In [ ]:

# %pip install -U geemap

# %pip install -U geemap

To use Google Maps as basemaps, you need to sign up for a Google Maps API key. Follow the instructions on the Google Maps Platform website to get an API key. The following steps are required:

• Step 1: Set up a Google Cloud project
• Step 2: Enable Google Maps Platform APIs and SDKs
• Step 3: Get an API key

There is a cost for requesting Maps tiles, but there is a $200 monthly credit and we've been told that for the purposes of typical EE-type usage, it would be rare to exceed $200.

Once you have your API key, you can set it as a Google Colab secret with the name GOOGLE_MAPS_API_KEY. Alternatively, you can set it as an environment variable on your local machine. Uncomment the following line to set the environment variable if you are running this notebook locally.

In [ ]:

# import os
# os.environ["GOOGLE_MAPS_API_KEY"] = "<YOUR-API-KEY>"

# import os # os.environ["GOOGLE_MAPS_API_KEY"] = ""

Import libraries

In [ ]:

import ee
import geemap

import ee import geemap

If the GOOGLE_MAPS_API_KEY environment variable is set, geemap will automatically detect it and use it to request Google Maps tiles. By default, geemap will use Google Roadmap as the basemap.

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m = geemap.Map()
m

m = geemap.Map() m

Use Google Hybrid basemap.

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m = geemap.Map(basemap="Google.Hybrid")
m

m = geemap.Map(basemap="Google.Hybrid") m

To use multiple basemaps, you can use the Map.add_basemap() function.

In [ ]:

m = geemap.Map()
m.add_basemap("Google.Hybrid")
m

m = geemap.Map() m.add_basemap("Google.Hybrid") m

Use Google Satellite basemap.

In [ ]:

m = geemap.Map(basemap="Google.Satellite")
m

m = geemap.Map(basemap="Google.Satellite") m

Use Google Terrain basemap.

In [ ]:

m = geemap.Map(basemap="Google.Terrain")
m

m = geemap.Map(basemap="Google.Terrain") m

Google Maps can be customized with various parameters. To create a custom Google Maps basemap, you can use the GoogleMapsTileProvider class. See https://bit.ly/3UhbZKU for more information on the available parameters.

In [ ]:

from geemap.basemaps import GoogleMapsTileProvider

from geemap.basemaps import GoogleMapsTileProvider

In [ ]:

style = [
    {"stylers": [{"hue": "#00ffe6"}, {"saturation": -20}]},
    {
        "featureType": "road",
        "elementType": "geometry",
        "stylers": [{"lightness": 100}, {"visibility": "simplified"}],
    },
]

m = geemap.Map(center=[40, -100], zoom=4)
basemap = GoogleMapsTileProvider(
    map_type="roadmap",
    region="CN",
    language="zh-Cn",
    scale="scaleFactor2x",
    highDpi=True,
    style=style,
)
m.add_basemap(basemap)
m

style = [ {"stylers": [{"hue": "#00ffe6"}, {"saturation": -20}]}, { "featureType": "road", "elementType": "geometry", "stylers": [{"lightness": 100}, {"visibility": "simplified"}], }, ] m = geemap.Map(center=[40, -100], zoom=4) basemap = GoogleMapsTileProvider( map_type="roadmap", region="CN", language="zh-Cn", scale="scaleFactor2x", highDpi=True, style=style, ) m.add_basemap(basemap) m