ee.Geometry.MultiPolygon.projection

  • The projection() method returns the projection of a given geometry, specifically a MultiPolygon in this case.

  • It takes a geometry object as input and returns a Projection object representing its coordinate system.

  • The provided code examples demonstrate how to use the projection() method in JavaScript and Python to obtain the projection of a MultiPolygon.

  • You can use the returned Projection object for further analysis or to reproject the geometry into a different coordinate system.

 Returns the projection of the geometry.

UsageReturns
MultiPolygon.projection()Projection
ArgumentTypeDetails
this: geometryGeometry

Examples

Code Editor (JavaScript)

// Define a MultiPolygon object.
var multiPolygon = ee.Geometry.MultiPolygon(
    [[[[-122.092, 37.424],
       [-122.086, 37.418],
       [-122.079, 37.425],
       [-122.085, 37.423]]],
     [[[-122.081, 37.417],
       [-122.086, 37.421],
       [-122.089, 37.416]]]]);

// Apply the projection method to the MultiPolygon object.
var multiPolygonProjection = multiPolygon.projection();

// Print the result to the console.
print('multiPolygon.projection(...) =', multiPolygonProjection);

// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPolygon,
             {'color': 'black'},
             'Geometry [black]: multiPolygon');

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 MultiPolygon object.
multipolygon = ee.Geometry.MultiPolygon([
    [[
        [-122.092, 37.424],
        [-122.086, 37.418],
        [-122.079, 37.425],
        [-122.085, 37.423],
    ]],
    [[[-122.081, 37.417], [-122.086, 37.421], [-122.089, 37.416]]],
])

# Apply the projection method to the MultiPolygon object.
multipolygon_projection = multipolygon.projection()

# Print the result.
display('multipolygon.projection(...) =', multipolygon_projection)

# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(
    multipolygon, {'color': 'black'}, 'Geometry [black]: multipolygon'
)
m