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an exception.
ee.Geometry.MultiPoint.withinDistance
Returns true if and only if the geometries are within a specified distance.
Usage | Returns | MultiPoint.withinDistance(right, distance, maxError, proj) | Boolean |
Argument | Type | Details | this: left | Geometry | The geometry used as the left operand of the operation. |
right | Geometry | The geometry used as the right operand of the operation. |
distance | Float | The distance threshold. If a projection is specified, the distance is in units of that projected coordinate system, otherwise it is in meters. |
maxError | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |
proj | Projection, default: null | The projection in which to perform the operation. If not specified, the operation will be performed in a spherical coordinate system, and linear distances will be in meters on the sphere. |
Examples
Code Editor (JavaScript)
// Define a MultiPoint object.
var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);
// Define other inputs.
var inputGeom = ee.Geometry.Point(-122.090, 37.423);
// Apply the withinDistance method to the MultiPoint object.
var multiPointWithinDistance = multiPoint.withinDistance({'right': inputGeom, 'distance': 500, 'maxError': 1});
// Print the result to the console.
print('multiPoint.withinDistance(...) =', multiPointWithinDistance);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPoint,
{'color': 'black'},
'Geometry [black]: multiPoint');
Map.addLayer(inputGeom,
{'color': 'blue'},
'Parameter [blue]: inputGeom');
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 MultiPoint object.
multipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])
# Define other inputs.
input_geom = ee.Geometry.Point(-122.090, 37.423)
# Apply the withinDistance method to the MultiPoint object.
multipoint_within_distance = multipoint.withinDistance(
right=input_geom, distance=500, maxError=1
)
# Print the result.
display('multipoint.withinDistance(...) =', multipoint_within_distance)
# 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(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom')
m
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Last updated 2023-12-06 UTC.
[null,null,["Last updated 2023-12-06 UTC."],[[["This function, `withinDistance`, determines if geometries are within a specified distance of each other and returns true or false."],["It takes the geometries, distance threshold, an optional maximum error for reprojection, and an optional projection as inputs."],["If a projection is specified, the distance is calculated in the units of that projection, otherwise in meters on a sphere."],["It can be used to analyze spatial relationships between MultiPoint and other geometries, like checking if a point is within a certain radius of a MultiPoint."]]],[]]