ee.Geometry.MultiPoint.length
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 |
---|
MultiPoint.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
// Define a MultiPoint object.
var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);
// Apply the length method to the MultiPoint object.
var multiPointLength = multiPoint.length();
// Print the result to the console.
print('multiPoint.length(...) =', multiPointLength);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPoint,
{'color': 'black'},
'Geometry [black]: multiPoint');
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
# Define a MultiPoint object.
multipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])
# Apply the length method to the MultiPoint object.
multipoint_length = multipoint.length()
# Print the result.
display('multipoint.length(...) =', multipoint_length)
# 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
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Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["Calculates the total length of the linear segments within a geometry, excluding any polygonal areas."],["For multi-geometries, the total length is the sum of the lengths of its individual components."],["The `length()` method can be applied to MultiPoint geometries to determine the linear distance between its points."],["Results are in meters by default, but can be customized to a specific projection's units using the `proj` argument."]]],["The `length()` method calculates the total length of the linear parts of a geometry, ignoring polygonal components. For multi-geometries, it sums the lengths of individual components. It returns a float value. The method accepts optional arguments: `maxError` to specify error tolerance during reprojection and `proj` to define the output coordinate system's units (defaults to meters). The provided code examples demonstrate its application on a `MultiPoint` object in both JavaScript and Python, calculating and printing the length and visualizing the geometry.\n"]]