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ee.Geometry.LinearRing.getInfo
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Recupera il valore di questo oggetto dal server.
Se non viene fornita alcuna funzione di callback, la richiesta viene eseguita in modo sincrono. Se viene fornita una funzione di callback, la richiesta viene effettuata in modo asincrono.
La modalità asincrona è preferita perché la modalità sincrona interrompe tutto il resto del codice (ad esempio, la UI dell'editor di codice EE) durante l'attesa del server. Per effettuare una richiesta asincrona, è preferibile utilizzare evaluate() anziché getInfo().
Restituisce il valore calcolato di questo oggetto.
| Utilizzo | Resi |
|---|
LinearRing.getInfo(callback) | Oggetto |
| Argomento | Tipo | Dettagli |
|---|
questo: computedobject | ComputedObject | L'istanza ComputedObject. |
callback | Funzione, facoltativa | Un callback facoltativo. Se non viene fornito, la chiamata viene effettuata in modo sincrono. |
Esempi
Editor di codice (JavaScript)
// Define a LinearRing object.
var linearRing = ee.Geometry.LinearRing(
[[-122.091, 37.420],
[-122.085, 37.422],
[-122.080, 37.430]]);
// Apply the getInfo method to the LinearRing object.
var linearRingGetInfo = linearRing.getInfo();
// Print the result to the console.
print('linearRing.getInfo(...) =', linearRingGetInfo);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(linearRing,
{'color': 'black'},
'Geometry [black]: linearRing');
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 LinearRing object.
linearring = ee.Geometry.LinearRing(
[[-122.091, 37.420], [-122.085, 37.422], [-122.080, 37.430]]
)
# Apply the getInfo method to the LinearRing object.
linearring_get_info = linearring.getInfo()
# Print the result.
display('linearring.getInfo(...) =', linearring_get_info)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(linearring, {'color': 'black'}, 'Geometry [black]: linearring')
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\u003e\u003ccode\u003egetInfo()\u003c/code\u003e retrieves the value of a ComputedObject (like a LinearRing) from the Earth Engine server.\u003c/p\u003e\n"],["\u003cp\u003eIt can be used synchronously (blocking other code) or asynchronously (using a callback function).\u003c/p\u003e\n"],["\u003cp\u003eAsynchronous requests are preferred to avoid UI freezes and \u003ccode\u003eevaluate()\u003c/code\u003e is generally recommended over \u003ccode\u003egetInfo()\u003c/code\u003e for this purpose.\u003c/p\u003e\n"],["\u003cp\u003eThe method returns the computed value of the object as a JavaScript Object when called.\u003c/p\u003e\n"],["\u003cp\u003eExamples demonstrate its usage with a LinearRing in both JavaScript and Python within the Earth Engine Code Editor and Colab environments.\u003c/p\u003e\n"]]],["`getInfo()` retrieves an object's value from the server, returning the computed value. It can operate synchronously (blocking) or asynchronously (non-blocking) using an optional callback function. Asynchronous mode is preferred for UI responsiveness, and `evaluate()` is recommended over `getInfo()` for asynchronous requests. The method is demonstrated using a `LinearRing` object example in both JavaScript and Python, showcasing data retrieval and map visualization.\n"],null,["# ee.Geometry.LinearRing.getInfo\n\n\u003cbr /\u003e\n\nRetrieves the value of this object from the server.\n\n\u003cbr /\u003e\n\nIf no callback function is provided, the request is made synchronously. If a callback is provided, the request is made asynchronously.\n\nThe asynchronous mode is preferred because the synchronous mode stops all other code (for example, the EE Code Editor UI) while waiting for the server. To make an asynchronous request, evaluate() is preferred over getInfo().\n\nReturns the computed value of this object.\n\n| Usage | Returns |\n|------------------------------------|---------|\n| LinearRing.getInfo`(`*callback*`)` | Object |\n\n| Argument | Type | Details |\n|------------------------|--------------------|------------------------------------------------------------------------|\n| this: `computedobject` | ComputedObject | The ComputedObject instance. |\n| `callback` | Function, optional | An optional callback. If not supplied, the call is made synchronously. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a LinearRing object.\nvar linearRing = ee.Geometry.LinearRing(\n [[-122.091, 37.420],\n [-122.085, 37.422],\n [-122.080, 37.430]]);\n\n// Apply the getInfo method to the LinearRing object.\nvar linearRingGetInfo = linearRing.getInfo();\n\n// Print the result to the console.\nprint('linearRing.getInfo(...) =', linearRingGetInfo);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(linearRing,\n {'color': 'black'},\n 'Geometry [black]: linearRing');\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 LinearRing object.\nlinearring = ee.Geometry.LinearRing(\n [[-122.091, 37.420], [-122.085, 37.422], [-122.080, 37.430]]\n)\n\n# Apply the getInfo method to the LinearRing object.\nlinearring_get_info = linearring.getInfo()\n\n# Print the result.\ndisplay('linearring.getInfo(...) =', linearring_get_info)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(linearring, {'color': 'black'}, 'Geometry [black]: linearring')\nm\n```"]]
