ee.Terrain.hillshade
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
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
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
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Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["Computes a hillshade, which is a shaded relief map, from a Digital Elevation Model (DEM) to visualize terrain."],["The `ee.Terrain.hillshade()` function takes an elevation image, azimuth, and elevation as input to generate the hillshade."],["Users can customize the illumination direction by specifying the azimuth (direction) and elevation (angle) of the light source."],["An example is provided using the ETOPO1 bedrock elevation data to demonstrate hillshade creation and visualization."]]],["The core content details how to compute a hillshade from a digital elevation model (DEM) using the `ee.Terrain.hillshade` function. This function takes an elevation image (`input`), an illumination azimuth (`azimuth`, default 270 degrees), and an illumination elevation (`elevation`, default 45 degrees) as arguments, and it returns a hillshade image. The examples showcase using elevation data, multiplying it by an exaggeration factor, then applying the function to produce the final hillshade image.\n"]]