ee.Terrain.hillshade

AI-generated Key Takeaways

• The ee.Terrain.hillshade function computes a simple hillshade from a digital elevation model (DEM) input.

• It returns an Image and takes an elevation image, illumination azimuth (default 270 degrees), and illumination elevation (default 45 degrees) as arguments.

• Examples in both JavaScript (Code Editor) and Python (Colab) demonstrate its usage.

Computes a simple hillshade from a DEM.

Usage	Returns
ee.Terrain.hillshade(input, azimuth, elevation)	Image

Argument	Type	Details
input	Image	An elevation image, in meters.
azimuth	Float, default: 270	The illumination azimuth in degrees from north.
elevation	Float, default: 45	The illumination elevation in degrees.

Examples

Code Editor (JavaScript)

var elevation = ee.Image('NOAA/NGDC/ETOPO1').select('bedrock');
var exaggeration = 20;
var hillshade = ee.Terrain.hillshade(elevation.multiply(exaggeration));
Map.addLayer(hillshade, null, 'ETOPO1 Hillshade');

Python setup

See the Python Environment page for information on the Python API and using geemap for interactive development.

import ee
import geemap.core as geemap

Colab (Python)

elevation = ee.Image('NOAA/NGDC/ETOPO1').select('bedrock')
exaggeration = 20
hillshade = ee.Terrain.hillshade(elevation.multiply(exaggeration))
m = geemap.Map()
m.add_layer(hillshade, None, 'ETOPO1 Hillshade')
m