Geemap and folium

Install Earth Engine API and geemap¶

Install the Earth Engine Python API and geemap. The geemap Python package is built upon the ipyleaflet and folium packages and implements several methods for displaying Earth Engine data layers, such as Map.addLayer(), Map.setCenter(), and Map.centerObject(). The following script checks if the geemap package has been installed. If not, it will install geemap, which automatically installs its dependencies, including earthengine-api, folium, and ipyleaflet.

In [14]:

# Installs geemap package
import subprocess

try:
    import geemap
except ImportError:
    print('geemap package not installed. Installing ...')
    subprocess.check_call(["python", '-m', 'pip', 'install', 'geemap'])

In [15]:

import ee
import geemap

Create an interactive map¶

In [16]:

Map = geemap.Map(center=[40,-100], zoom=4)
Map

Add Earth Engine Python script¶

In [17]:

# Add Earth Engine dataset
image = ee.Image('USGS/SRTMGL1_003')

# Set visualization parameters.
vis_params = {
  'min': 0,
  'max': 4000,
  'palette': ['006633', 'E5FFCC', '662A00', 'D8D8D8', 'F5F5F5']}

# Print the elevation of Mount Everest.
xy = ee.Geometry.Point([86.9250, 27.9881])
elev = image.sample(xy, 30).first().get('elevation').getInfo()
print('Mount Everest elevation (m):', elev)

# Add Earth Engine layers to Map
Map.addLayer(image, vis_params, 'SRTM DEM', True, 0.5)
Map.addLayer(xy, {'color': 'red'}, 'Mount Everest')

# Center the map based on an Earth Eninge object or coordinates (longitude, latitude)
# Map.centerObject(xy, 4)
Map.setCenter(86.9250, 27.9881, 4)

Mount Everest elevation (m): 8729

Add layer control and display the map¶

In [18]:

Map.addLayerControl()
Map

Add basemaps¶

In [19]:

Map = geemap.Map(center=[40, -100], zoom=4)
Map.add_basemap('Esri Ocean')
Map.add_basemap('Esri Physical Map')
Map.add_basemap('Esri National Geographic')
Map.addLayerControl()
Map

Add XYZ tile layer¶

In [20]:

Map = geemap.Map(center=[40, -100], zoom=4)
url = 'https://mt1.google.com/vt/lyrs=m&x={x}&y={y}&z={z}'
Map.add_tile_layer(url, name='Google Map', attribution='Google')
Map.addLayerControl()
Map

Add WMS layer¶

In [21]:

Map = geemap.Map(center=[40, -100], zoom=4)

elev_url = 'https://elevation.nationalmap.gov/arcgis/services/3DEPElevation/ImageServer/WMSServer?'
Map.add_wms_layer(url=elev_url, layers='3DEPElevation:None', name='3DEP Elevation', shown=False)

naip_url = 'https://services.nationalmap.gov/arcgis/services/USGSNAIPImagery/ImageServer/WMSServer?'
Map.add_wms_layer(url=naip_url, layers='0', name='NAIP Imagery', format='image/png', shown=True)

Map.addLayerControl()
Map

Last update: 2021-02-25