AI-generated Key Takeaways
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Returns the center point of the highest-dimension components of a geometry, ignoring lower dimensions.
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It can be used on any geometry object and accepts optional
maxError
andproj
parameters. -
The
maxError
parameter controls the tolerance for reprojection errors. -
The
proj
parameter specifies the projection for the result, defaulting to EPSG:4326 if not provided.
Usage | Returns |
---|---|
MultiPoint.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 EPSG:4326. |
Examples
Code Editor (JavaScript)
// Define a MultiPoint object. var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]); // Apply the centroid method to the MultiPoint object. var multiPointCentroid = multiPoint.centroid({'maxError': 1}); // Print the result to the console. print('multiPoint.centroid(...) =', multiPointCentroid); // Display relevant geometries on the map. Map.setCenter(-122.085, 37.422, 15); Map.addLayer(multiPoint, {'color': 'black'}, 'Geometry [black]: multiPoint'); Map.addLayer(multiPointCentroid, {'color': 'red'}, 'Result [red]: multiPoint.centroid');
import ee import geemap.core as geemap
Colab (Python)
# Define a MultiPoint object. multipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]) # Apply the centroid method to the MultiPoint object. multipoint_centroid = multipoint.centroid(maxError=1) # Print the result. display('multipoint.centroid(...) =', multipoint_centroid) # Display relevant geometries on the map. m = geemap.Map() m.set_center(-122.085, 37.422, 15) m.add_layer(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint') m.add_layer( multipoint_centroid, {'color': 'red'}, 'Result [red]: multipoint.centroid' ) m