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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

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AI-generated Key Takeaways

Examples

Code Editor (JavaScript)

Colab (Python)

ee.Terrain.hillshade