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ee.Geometry.MultiPolygon.edgesAreGeodesics
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Returns true if the geometry edges, if any, are geodesics along a spherical model of the earth; if false, any edges are straight lines in the projection.
| Usage | Returns | MultiPolygon.edgesAreGeodesics() | Boolean |
| Argument | Type | Details | this: geometry | Geometry | |
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 edgesAreGeodesics method to the MultiPolygon object.
var multiPolygonEdgesAreGeodesics = multiPolygon.edgesAreGeodesics();
// Print the result to the console.
print('multiPolygon.edgesAreGeodesics(...) =', multiPolygonEdgesAreGeodesics);
// 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 edgesAreGeodesics method to the MultiPolygon object.
multipolygon_edges_are_geodesics = multipolygon.edgesAreGeodesics()
# Print the result.
display(
'multipolygon.edgesAreGeodesics(...) =', multipolygon_edges_are_geodesics
)
# 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
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Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["\u003cp\u003e\u003ccode\u003eedgesAreGeodesics()\u003c/code\u003e is a method used to determine if the edges of a MultiPolygon geometry are treated as geodesics (curved along the Earth's surface) or straight lines in the projection.\u003c/p\u003e\n"],["\u003cp\u003eThis method returns \u003ccode\u003etrue\u003c/code\u003e if the edges are geodesics, and \u003ccode\u003efalse\u003c/code\u003e if they are straight lines.\u003c/p\u003e\n"],["\u003cp\u003eThe method is called on a MultiPolygon geometry object and takes no arguments.\u003c/p\u003e\n"],["\u003cp\u003eYou can use this information to understand how the MultiPolygon is represented and interpreted in Earth Engine.\u003c/p\u003e\n"]]],[],null,["# ee.Geometry.MultiPolygon.edgesAreGeodesics\n\nReturns true if the geometry edges, if any, are geodesics along a spherical model of the earth; if false, any edges are straight lines in the projection.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------------------|---------|\n| MultiPolygon.edgesAreGeodesics`()` | Boolean |\n\n| Argument | Type | Details |\n|------------------|----------|---------|\n| this: `geometry` | Geometry | |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a MultiPolygon object.\nvar multiPolygon = ee.Geometry.MultiPolygon(\n [[[[-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423]]],\n [[[-122.081, 37.417],\n [-122.086, 37.421],\n [-122.089, 37.416]]]]);\n\n// Apply the edgesAreGeodesics method to the MultiPolygon object.\nvar multiPolygonEdgesAreGeodesics = multiPolygon.edgesAreGeodesics();\n\n// Print the result to the console.\nprint('multiPolygon.edgesAreGeodesics(...) =', multiPolygonEdgesAreGeodesics);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiPolygon,\n {'color': 'black'},\n 'Geometry [black]: multiPolygon');\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# Define a MultiPolygon object.\nmultipolygon = ee.Geometry.MultiPolygon([\n [[\n [-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423],\n ]],\n [[[-122.081, 37.417], [-122.086, 37.421], [-122.089, 37.416]]],\n])\n\n# Apply the edgesAreGeodesics method to the MultiPolygon object.\nmultipolygon_edges_are_geodesics = multipolygon.edgesAreGeodesics()\n\n# Print the result.\ndisplay(\n 'multipolygon.edgesAreGeodesics(...) =', multipolygon_edges_are_geodesics\n)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(\n multipolygon, {'color': 'black'}, 'Geometry [black]: multipolygon'\n)\nm\n```"]]