120 javascript

Calling functions in Earth Engine JavaScript libraries from Python

Run the following line to enable tab-completion for JavaScript libraries.

In [ ]:

%config IPCompleter.use_jedi = False

%config IPCompleter.use_jedi = False

Import libraries

In [ ]:

import ee
import geemap

import ee import geemap

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geemap.ee_initialize()

geemap.ee_initialize()

Use the Open Earth Engine Library (OEEL)

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oeel = geemap.requireJS()

oeel = geemap.requireJS()

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ic = ee.ImageCollection("COPERNICUS/S2_SR")

icSize = (
    oeel.Algorithms.Sentinel2.cloudfree(maxCloud=20, S2Collection=ic)
    .filterDate('2020-01-01', '2020-01-02')
    .size()
)
print('Cloud free imagery: ', icSize.getInfo())

ic = ee.ImageCollection("COPERNICUS/S2_SR") icSize = ( oeel.Algorithms.Sentinel2.cloudfree(maxCloud=20, S2Collection=ic) .filterDate('2020-01-01', '2020-01-02') .size() ) print('Cloud free imagery: ', icSize.getInfo())

Use an Earth Engine JavaScript library from a HTTP URL.

In [ ]:

url = 'https://github.com/gee-community/geemap/blob/master/examples/javascripts/grid.js'

url = 'https://github.com/gee-community/geemap/blob/master/examples/javascripts/grid.js'

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lib = geemap.requireJS(url)

lib = geemap.requireJS(url)

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lib.availability

lib.availability

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grid = lib.generateGrid(-180, -50, 180, 50, 10, 10, 0, 0)

grid = lib.generateGrid(-180, -50, 180, 50, 10, 10, 0, 0)

In [ ]:

Map = geemap.Map()
Map.addLayer(grid, {}, 'Grid')
Map

Map = geemap.Map() Map.addLayer(grid, {}, 'Grid') Map

Use a local Earth Engine JavaScript library.

In [ ]:

Map = geemap.Map()
Map

Map = geemap.Map() Map

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lib = geemap.requireJS('grid.js', Map)

lib = geemap.requireJS('grid.js', Map)

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lib.availability

lib.availability

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lib.grid_test()

lib.grid_test()

Use an Earth Engine JavaScript from an Earth Engine repo.

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lib = geemap.requireJS('users/gena/packages:grid')

lib = geemap.requireJS('users/gena/packages:grid')

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lib.availability

lib.availability

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grid = lib.generateGrid(-180, -50, 180, 50, 10, 10, 0, 0)

grid = lib.generateGrid(-180, -50, 180, 50, 10, 10, 0, 0)

In [ ]:

Map = geemap.Map()
Map.addLayer(grid, {}, 'Grid')
Map

Map = geemap.Map() Map.addLayer(grid, {}, 'Grid') Map

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Last update: 2023-04-06
Created: 2021-12-18