ee.Geometry.Polygon.toGeoJSONString

Page Summary

• The toGeoJSONString() method returns a GeoJSON string representation of a geometry.

• This method can be applied to a Polygon object to get its GeoJSON string.

• The examples demonstrate its use in both JavaScript and Python.

Returns a GeoJSON string representation of the geometry.

Usage	Returns
Polygon.toGeoJSONString()	String

Argument	Type	Details
this: geometry	Geometry	The Geometry instance.

Examples

Code Editor (JavaScript)

// Define a Polygon object.
var polygon = ee.Geometry.Polygon(
    [[[-122.092, 37.424],
      [-122.086, 37.418],
      [-122.079, 37.425],
      [-122.085, 37.423]]]);

// Apply the toGeoJSONString method to the Polygon object.
var polygonToGeoJSONString = polygon.toGeoJSONString();

// Print the result to the console.
print('polygon.toGeoJSONString(...) =', polygonToGeoJSONString);

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

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 Polygon object.
polygon = ee.Geometry.Polygon([[
    [-122.092, 37.424],
    [-122.086, 37.418],
    [-122.079, 37.425],
    [-122.085, 37.423],
]])

# Apply the toGeoJSONString method to the Polygon object.
polygon_to_geojson_string = polygon.toGeoJSONString()

# Print the result.
display('polygon.toGeoJSONString(...) =', polygon_to_geojson_string)

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