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ee.Geometry.centroid
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Returns a point at the center of the highest-dimension components of the geometry. Lower-dimensional components are ignored, so the centroid of a geometry containing two polygons, three lines and a point is equivalent to the centroid of a geometry containing just the two polygons.
Usage Returns Geometry. centroid (maxError , proj )
Geometry
Argument Type Details this: geometry
Geometry Calculates the centroid of this 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 this projection. Otherwise it will be in WGS84.
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 centroid method to the Geometry object.
var geometryCentroid = geometry.centroid({'maxError': 1});
// Print the result to the console.
print('geometry.centroid(...) =', geometryCentroid);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(geometry,
{'color': 'black'},
'Geometry [black]: geometry');
Map.addLayer(geometryCentroid,
{'color': 'red'},
'Result [red]: geometry.centroid');
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 centroid method to the Geometry object.
geometry_centroid = geometry.centroid(maxError=1)
# Print the result.
display('geometry.centroid(...) =', geometry_centroid)
# 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.add_layer(
geometry_centroid, {'color': 'red'}, 'Result [red]: geometry.centroid'
)
m
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Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License , and code samples are licensed under the Apache 2.0 License . For details, see the Google Developers Site Policies . Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2023-10-06 UTC.
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