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ee.Geometry.Polygon.geodesic
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Se è falso, i bordi sono dritti nella proiezione. Se true, i bordi sono curvi per seguire il percorso più breve sulla superficie della Terra.
| Utilizzo | Resi |
|---|
Polygon.geodesic() | Booleano |
| Argomento | Tipo | Dettagli |
|---|
questo: geometry | Geometria | |
Esempi
Editor di codice (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 geodesic method to the Polygon object.
var polygonGeodesic = polygon.geodesic();
// Print the result to the console.
print('polygon.geodesic(...) =', polygonGeodesic);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(polygon,
{'color': 'black'},
'Geometry [black]: polygon');
Configurazione di Python
Consulta la pagina
Ambiente Python per informazioni sull'API Python e sull'utilizzo di
geemap per lo sviluppo interattivo.
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 geodesic method to the Polygon object.
polygon_geodesic = polygon.geodesic()
# Print the result.
display('polygon.geodesic(...) =', polygon_geodesic)
# 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
Salvo quando diversamente specificato, i contenuti di questa pagina sono concessi in base alla licenza Creative Commons Attribution 4.0, mentre gli esempi di codice sono concessi in base alla licenza Apache 2.0. Per ulteriori dettagli, consulta le norme del sito di Google Developers. Java è un marchio registrato di Oracle e/o delle sue consociate.
Ultimo aggiornamento 2025-07-26 UTC.
[null,null,["Ultimo aggiornamento 2025-07-26 UTC."],[[["\u003cp\u003eThe \u003ccode\u003egeodesic()\u003c/code\u003e method determines whether polygon edges are rendered as straight lines or curved to follow the Earth's curvature.\u003c/p\u003e\n"],["\u003cp\u003eWhen set to \u003ccode\u003efalse\u003c/code\u003e, edges appear straight in the projection; when \u003ccode\u003etrue\u003c/code\u003e, edges are curved, representing the shortest path on the Earth's surface.\u003c/p\u003e\n"],["\u003cp\u003eThis method applies to \u003ccode\u003ePolygon\u003c/code\u003e geometries and returns a boolean value indicating the geodesic setting.\u003c/p\u003e\n"],["\u003cp\u003eYou can use this method to visually represent and accurately measure distances on a geographic scale.\u003c/p\u003e\n"]]],["The `Polygon.geodesic()` method determines if a polygon's edges are curved to follow the Earth's surface's shortest path. It returns a Boolean value: `true` indicates curved edges, `false` indicates straight edges. This method is applied to a `Geometry` object representing a polygon. Examples in JavaScript and Python show defining a polygon, applying `geodesic()`, and printing/displaying the Boolean result. The code also provides map visualization to show polygon.\n"],null,["# ee.Geometry.Polygon.geodesic\n\nIf false, edges are straight in the projection. If true, edges are curved to follow the shortest path on the surface of the Earth.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|----------------------|---------|\n| Polygon.geodesic`()` | 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 Polygon object.\nvar polygon = ee.Geometry.Polygon(\n [[[-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423]]]);\n\n// Apply the geodesic method to the Polygon object.\nvar polygonGeodesic = polygon.geodesic();\n\n// Print the result to the console.\nprint('polygon.geodesic(...) =', polygonGeodesic);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(polygon,\n {'color': 'black'},\n 'Geometry [black]: polygon');\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 Polygon object.\npolygon = ee.Geometry.Polygon([[\n [-122.092, 37.424],\n [-122.086, 37.418],\n [-122.079, 37.425],\n [-122.085, 37.423],\n]])\n\n# Apply the geodesic method to the Polygon object.\npolygon_geodesic = polygon.geodesic()\n\n# Print the result.\ndisplay('polygon.geodesic(...) =', polygon_geodesic)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(polygon, {'color': 'black'}, 'Geometry [black]: polygon')\nm\n```"]]
