120_javascript.ipynb

Kernel: Python 3

Calling functions in Earth Engine JavaScript libraries from Python

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

%config IPCompleter.use_jedi = False

Import libraries

import ee
import geemap

geemap.ee_initialize()

Use the Open Earth Engine Library (OEEL)

oeel = geemap.requireJS()

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.

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

lib = geemap.requireJS(url)

lib.availability

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

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

Use a local Earth Engine JavaScript library.

Map = geemap.Map()
Map

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

lib.availability

lib.grid_test()

Use an Earth Engine JavaScript from an Earth Engine repo.

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

lib.availability

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

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