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ee.Geometry.length
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Returns the length of the linear parts of the geometry. Polygonal parts are ignored. The length of multi geometries is the sum of the lengths of their components.
Usage Returns Geometry. length (maxError , proj )
Float
Argument Type Details this: geometry
Geometry The input geometry. maxError
ErrorMargin, default: null The maximum amount of error tolerated when performing any necessary reprojection. proj
Projection, default: null If specified, the result will be in the units of the coordinate system of this projection. Otherwise it will be in meters.
Examples
Code Editor (JavaScript)
// Define a Geometry object.
var geometry = ee.Geometry({
'type': 'Polygon',
'coordinates':
[[[-122.081, 37.417],
[-122.086, 37.421],
[-122.084, 37.418],
[-122.089, 37.416]]]
});
// Apply the length method to the Geometry object.
var geometryLength = geometry.length();
// Print the result to the console.
print('geometry.length(...) =', geometryLength);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(geometry,
{'color': 'black'},
'Geometry [black]: geometry');
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)
# Define a Geometry object.
geometry = ee.Geometry({
'type': 'Polygon',
'coordinates': [[
[-122.081, 37.417],
[-122.086, 37.421],
[-122.084, 37.418],
[-122.089, 37.416],
]],
})
# Apply the length method to the Geometry object.
geometry_length = geometry.length()
# Print the result.
display('geometry.length(...) =', geometry_length)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(geometry, {'color': 'black'}, 'Geometry [black]: geometry')
m
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Last updated 2023-10-06 UTC.
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