ee.FeatureCollection

FeatureCollection は、次の引数から構築できます。

  - 文字列: コレクションの名前とみなされます。

  - 単一のジオメトリ。

  - 単一の機能。

  - 機能のリスト。

  - GeoJSON FeatureCollection

  - 計算されたオブジェクト: コレクションとして再解釈されます。

用途	戻り値
ee.FeatureCollection(args, column)	FeatureCollection

引数	タイプ	詳細
args	ComputedObject|Feature|FeatureCollection|Geometry|List<Object>|Number|String	コンストラクタの引数。
column	文字列、省略可	使用するジオメトリ列の名前。名前付きコレクションを操作する場合にのみ使用できます。

例

コードエディタ（JavaScript）

// FeatureCollection from a string (collection name). Note that this only works
// with client-side strings, it won't accept computed, server-side strings.
var collectionName = 'WRI/GPPD/power_plants';
var collectionNameFc = ee.FeatureCollection(collectionName);
print('FeatureCollection from a string', collectionNameFc.limit(5));

// FeatureCollection from a single geometry.
var singleGeometry = ee.Geometry.Point(-62.54, -27.32);
var singleGeometryFc = ee.FeatureCollection(singleGeometry);
print('FeatureCollection from a single geometry', singleGeometryFc);

// FeatureCollection from a single feature.
var singleFeature = ee.Feature(ee.Geometry.Point(-62.54, -27.32), {key: 'val'});
var singleFeatureFc = ee.FeatureCollection(singleFeature);
print('FeatureCollection from a single feature', singleFeatureFc);

// FeatureCollection from a list of features.
var listOfFeatures = [
  ee.Feature(ee.Geometry.Point(-62.54, -27.32), {key: 'val1'}),
  ee.Feature(ee.Geometry.Point(-69.18, -10.64), {key: 'val2'}),
  ee.Feature(ee.Geometry.Point(-45.98, -18.09), {key: 'val3'})
];
var listOfFeaturesFc = ee.FeatureCollection(listOfFeatures);
print('FeatureCollection from a list of features', listOfFeaturesFc);

// FeatureCollection from GeoJSON.
var geojson = {
  "type": "FeatureCollection",
  "columns": {
    "key": "String",
    "system:index": "String"
  },
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [
          -62.54,
          -27.32
        ]
      },
      "id": "0",
      "properties": {
        "key": "val1"
      }
    }
  ]
};
var geojsonFc = ee.FeatureCollection(geojson);
print('FeatureCollection from GeoJSON', geojsonFc);

Python の設定

Python API とインタラクティブな開発での geemap の使用については、 Python 環境のページをご覧ください。

import ee
import geemap.core as geemap

Colab（Python）

# FeatureCollection from a string (collection name). Note that this only works
# with client-side strings, it won't accept computed, server-side strings.
collection_name = 'WRI/GPPD/power_plants'
collection_name_fc = ee.FeatureCollection(collection_name)
print('FeatureCollection from a string:', collection_name_fc.limit(5).getInfo())

# FeatureCollection from a single geometry.
single_geometry = ee.Geometry.Point(-62.54, -27.32)
single_geometry_fc = ee.FeatureCollection(single_geometry)
print('FeatureCollection from a single geometry:', single_geometry_fc.getInfo())

# FeatureCollection from a single feature.
single_feature = ee.Feature(ee.Geometry.Point(-62.54, -27.32), {'key': 'val'})
single_feature_fc = ee.FeatureCollection(single_feature)
print('FeatureCollection from a single feature:', single_feature_fc.getInfo())

# FeatureCollection from a list of features.
list_of_features = [
    ee.Feature(ee.Geometry.Point(-62.54, -27.32), {'key': 'val1'}),
    ee.Feature(ee.Geometry.Point(-69.18, -10.64), {'key': 'val2'}),
    ee.Feature(ee.Geometry.Point(-45.98, -18.09), {'key': 'val3'})
]
list_of_features_fc = ee.FeatureCollection(list_of_features)
print('FeatureCollection from a list of features:',
      list_of_features_fc.getInfo())

# FeatureCollection from GeoJSON.
geojson = {
    'type': 'FeatureCollection',
    'columns': {
        'key': 'String',
        'system:index': 'String'
        },
    'features': [
        {
            'type': 'Feature',
            'geometry': {
                'type': 'Point',
                'coordinates': [
                    -62.54,
                    -27.32
                    ]
                },
            'id': '0',
            'properties': {
                'key': 'val1'
                }
            }
        ]
    }
geojson_fc = ee.FeatureCollection(geojson)
print('FeatureCollection from GeoJSON:', geojson_fc.getInfo())