AI-generated Key Takeaways
-
Calculates the minimum distance between two Earth Engine geometries.
-
Takes a Geometry as the right operand and optional
maxError
andproj
parameters. -
Returns the distance as a float, representing meters on the sphere if
proj
is not specified. -
Can be used with BBox, Point, and other geometry types for distance computations.
Usage | Returns |
---|---|
BBox.distance(right, maxError, proj, spherical) | Float |
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. |
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. |
spherical | Boolean, default: false | If true, the calculation will be done on the unit sphere. If false, the calculation will be elliptical, taking earth flattening into account. Ignored if proj is specified. Default is false. |
Examples
Code Editor (JavaScript)
// Define a BBox object. var bBox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43); // Define other inputs. var inputGeom = ee.Geometry.Point(-122.090, 37.423); // Apply the distance method to the BBox object. var bBoxDistance = bBox.distance({'right': inputGeom, 'maxError': 1}); // Print the result to the console. print('bBox.distance(...) =', bBoxDistance); // Display relevant geometries on the map. Map.setCenter(-122.085, 37.422, 15); Map.addLayer(bBox, {'color': 'black'}, 'Geometry [black]: bBox'); Map.addLayer(inputGeom, {'color': 'blue'}, 'Parameter [blue]: inputGeom');
import ee import geemap.core as geemap
Colab (Python)
# Define a BBox object. bbox = ee.Geometry.BBox(-122.09, 37.42, -122.08, 37.43) # Define other inputs. input_geom = ee.Geometry.Point(-122.090, 37.423) # Apply the distance method to the BBox object. bbox_distance = bbox.distance(right=input_geom, maxError=1) # Print the result. display('bbox.distance(...) =', bbox_distance) # Display relevant geometries on the map. m = geemap.Map() m.set_center(-122.085, 37.422, 15) m.add_layer(bbox, {'color': 'black'}, 'Geometry [black]: bbox') m.add_layer(input_geom, {'color': 'blue'}, 'Parameter [blue]: input_geom') m