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ee.Geometry.MultiPoint.dissolve
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Restituisce l'unione della geometria. Lascia invariate le singole geometrie e unisce quelle multiple.
Utilizzo | Resi |
---|
MultiPoint.dissolve(maxError, proj) | Geometria |
Argomento | Tipo | Dettagli |
---|
questo: geometry | Geometria | La geometria da unire. |
maxError | ErrorMargin, valore predefinito: null | La quantità massima di errore tollerata durante l'esecuzione di qualsiasi riproiezione necessaria. |
proj | Proiezione, valore predefinito: null | Se specificata, l'unione verrà eseguita in questa proiezione. In caso contrario, verrà eseguita in un sistema di coordinate sferiche. |
Esempi
Editor di codice (JavaScript)
// Define a MultiPoint object.
var multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);
// Apply the dissolve method to the MultiPoint object.
var multiPointDissolve = multiPoint.dissolve({'maxError': 1});
// Print the result to the console.
print('multiPoint.dissolve(...) =', multiPointDissolve);
// Display relevant geometries on the map.
Map.setCenter(-122.085, 37.422, 15);
Map.addLayer(multiPoint,
{'color': 'black'},
'Geometry [black]: multiPoint');
Map.addLayer(multiPointDissolve,
{'color': 'red'},
'Result [red]: multiPoint.dissolve');
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 MultiPoint object.
multipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])
# Apply the dissolve method to the MultiPoint object.
multipoint_dissolve = multipoint.dissolve(maxError=1)
# Print the result.
display('multipoint.dissolve(...) =', multipoint_dissolve)
# Display relevant geometries on the map.
m = geemap.Map()
m.set_center(-122.085, 37.422, 15)
m.add_layer(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint')
m.add_layer(
multipoint_dissolve, {'color': 'red'}, 'Result [red]: multipoint.dissolve'
)
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\u003eReturns the union of the geometry, leaving single geometries untouched and uniting multi-geometries.\u003c/p\u003e\n"],["\u003cp\u003eCan be applied to MultiPoint geometries using \u003ccode\u003edissolve()\u003c/code\u003e, with optional \u003ccode\u003emaxError\u003c/code\u003e and \u003ccode\u003eproj\u003c/code\u003e parameters.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003emaxError\u003c/code\u003e controls the reprojection error tolerance, and \u003ccode\u003eproj\u003c/code\u003e specifies the projection for the union operation.\u003c/p\u003e\n"],["\u003cp\u003eIf \u003ccode\u003eproj\u003c/code\u003e is not specified, the union is performed in a spherical coordinate system.\u003c/p\u003e\n"]]],[],null,["# ee.Geometry.MultiPoint.dissolve\n\nReturns the union of the geometry. This leaves single geometries untouched, and unions multi geometries.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------------------------------|----------|\n| MultiPoint.dissolve`(`*maxError* `, `*proj*`)` | Geometry |\n\n| Argument | Type | Details |\n|------------------|----------------------------|--------------------------------------------------------------------------------------------------------------------------------|\n| this: `geometry` | Geometry | The geometry to union. |\n| `maxError` | ErrorMargin, default: null | The maximum amount of error tolerated when performing any necessary reprojection. |\n| `proj` | Projection, default: null | If specified, the union will be performed in this projection. Otherwise it will be performed in a spherical coordinate system. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Define a MultiPoint object.\nvar multiPoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]]);\n\n// Apply the dissolve method to the MultiPoint object.\nvar multiPointDissolve = multiPoint.dissolve({'maxError': 1});\n\n// Print the result to the console.\nprint('multiPoint.dissolve(...) =', multiPointDissolve);\n\n// Display relevant geometries on the map.\nMap.setCenter(-122.085, 37.422, 15);\nMap.addLayer(multiPoint,\n {'color': 'black'},\n 'Geometry [black]: multiPoint');\nMap.addLayer(multiPointDissolve,\n {'color': 'red'},\n 'Result [red]: multiPoint.dissolve');\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 MultiPoint object.\nmultipoint = ee.Geometry.MultiPoint([[-122.082, 37.420], [-122.081, 37.426]])\n\n# Apply the dissolve method to the MultiPoint object.\nmultipoint_dissolve = multipoint.dissolve(maxError=1)\n\n# Print the result.\ndisplay('multipoint.dissolve(...) =', multipoint_dissolve)\n\n# Display relevant geometries on the map.\nm = geemap.Map()\nm.set_center(-122.085, 37.422, 15)\nm.add_layer(multipoint, {'color': 'black'}, 'Geometry [black]: multipoint')\nm.add_layer(\n multipoint_dissolve, {'color': 'red'}, 'Result [red]: multipoint.dissolve'\n)\nm\n```"]]