ee-packages-js's Introduction

A set of userful utilities for Google Earth Engine (JavaScript version)

Access scripts in Google Earth Engine Code Editor:

See some examples of how to use these scripts in the following slides.

The library includes the following main scripts:

animation - animate image collection in Code Editor by adding multiple images as map layers and toggle their opacity
assets - harmonize access to medium-resolution optical satellite image collections (Landsat 4,5,7,8,9 and Sentinel-2)
charting - scatter chart, rug plot, colorbar chart as a map layer in code editor
earth - inset Earth in Code Editor
gallery - project image colleciton as a filmstrip map layer
geometry - transect, vector, center point, concave hull
gl - emulate a subset of fragment shader in Earth Engine (proof-of-concept, 1000x slower than in GPU)
grid - generate regular grid (vector or raster)
hydro - access to some of hydologicla layers
palettes - palettes, see docs here: https://github.com/gee-community/ee-palettes
promise - (incomplete) emulate JavaScript async Promise
stat - dnorm, qnorm
style - north arrow, gradient bar, scale bar, frame with coordinates, map styles (use https://github.com/aazuspan/snazzy instead)
text - draw text annotations in map layers
thresholding - Otsu thresholding, threaholding based on Otsu and Canny Edge Detector methods (see my PhD thesis for examples)
tiler - generate SlippyMap tiles for a given zoom level and bounds
ui - (prototype, slow) draw area tool, draw transect tool
utils - stretch image bandwise, isolines, fast focal max/min/weight, hillshadeRGB, Perona-Malik speckle filter, multitemporal speckle filter, skeletonization (image morphology), PCA

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