ee.ImageCollection.set

Remplace une ou plusieurs propriétés de métadonnées d'un élément.

Renvoie l'élément dont les propriétés spécifiées ont été remplacées.

Utilisation	Renvoie
ImageCollection.set(var_args)	Élément

Argument	Type	Détails
ceci : element	Élément	Instance de l'élément.
var_args	VarArgs[Object]	Dictionnaire de propriétés ou séquence vararg de propriétés, par exemple key1, value1, key2, value2, ...

Exemples

Éditeur de code (JavaScript)

// A contrived, empty image collection for simple demonstration.
var col = ee.ImageCollection([]);
print('Collection without properties', col);

// Set collection properties using a dictionary.
col = col.set({
  project_name: 'biomass_tracking',
  project_id: 3,
  plot_ids: ee.Array([7, 11, 20])
});

// Set collection properties using a series of key-value pairs.
col = col.set('project_year', 2018,
              'rgb_vis', 'false_color');

print('Collection with properties', col);

// Get a dictionary of collection property keys and values.
print('Property keys and values (ee.Dictionary)', col.toDictionary());

// Get the value of a collection property. To use the result of
// ee.ImageCollection.get in further computation, you need to cast it to the
// appropriate class, for example, ee.Number(result) or ee.String(result).
print('Project ID (ambiguous object)', col.get('project_id'));

// Get the value of a string collection property as an ee.String object.
print('Project name (ee.String)', col.getString('project_name'));

// Get the value of a numeric collection property as an ee.Number object.
print('Project year (ee.Number)', col.getNumber('project_year'));

// Get the value of an ee.Array collection property as an ee.Array object.
print('Plot IDs (ee.Array)', col.getArray('plot_ids'));

Configuration de Python

Consultez la page Environnement Python pour en savoir plus sur l'API Python et sur l'utilisation de geemap pour le développement interactif.

import ee
import geemap.core as geemap

Colab (Python)

# A contrived, empty image collection for simple demonstration.
col = ee.ImageCollection([])
display('Collection without properties:', col)

# Set collection properties using a dictionary.
col = col.set({
    'project_name': 'biomass_tracking',
    'project_id': 3,
    'plot_ids': ee.Array([7, 11, 20])
})

# Set collection properties using a series of key-value pairs.
col = col.set('project_year', 2018,
              'rgb_vis', 'false_color')

display('Collection with properties:', col)

# Get a dictionary of collection property keys and values.
display('Property keys and values (ee.Dictionary):', col.toDictionary())

# Get the value of a collection property. To use the result of
# ee.ImageCollection.get in further computation, you need to cast it to the
# appropriate class, for example, ee.Number(result) or ee.String(result).
display('Project ID (ambiguous object):', col.get('project_id'))

# Get the value of a string collection property as an ee.String object.
display('Project name (ee.String):', col.getString('project_name'))

# Get the value of a numeric collection property as an ee.Number object.
display('Project year (ee.Number):', col.getNumber('project_year'))

# Get the value of an ee.Array collection property as an ee.Array object.
display('Plot IDs (ee.Array):', col.getArray('plot_ids'))