ee.FeatureCollection.loadBigQueryTable

從 BigQuery 表格讀取資料,並以 FeatureCollection 的形式呈現結果。

用量傳回
ee.FeatureCollection.loadBigQueryTable(table, geometryColumn)FeatureCollection
引數類型詳細資料
table字串BigQuery 資料表的路徑,格式為 `project.dataset.table`。
geometryColumn字串,預設值:空值要用來做為主要地形特徵幾何圖形的資料欄名稱。如未指定,系統會使用第一個 GEOGRAPHY 類型欄。

範例

程式碼編輯器 (JavaScript)

// Load stations from the New York Subway System.
var features = ee.FeatureCollection.loadBigQueryTable({
  table: 'bigquery-public-data.new_york_subway.stations',
  geometryColumn: 'station_geom',
});

// Display all relevant features on the map.
Map.setCenter(-73.90, 40.73, 11);
Map.addLayer(features,
             {'color': 'black'},
             'Stations from New York Subway System');

// Print all stations in the "Astoria" line.
var line = features.filter(ee.Filter.eq('line', 'Astoria'));
print(line);
Map.addLayer(line,
             {'color': 'yellow'},
             'Astoria line');

Python 設定

請參閱「 Python 環境」頁面,瞭解 Python API 和如何使用 geemap 進行互動式開發。

import ee
import geemap.core as geemap

Colab (Python)

# Load stations from the New York Subway System.
features = ee.FeatureCollection.loadBigQueryTable(
    table="bigquery-public-data.new_york_subway.stations",
    geometryColumn="station_geom")

# Display all relevant features on the map.
m = geemap.Map()
m.set_center(-73.90, 40.73, 11)
m.add_layer(
    features, {'color': 'black'}, 'Stations from New York Subway System')

# Print all stations in the "Astoria" line.
line = features.filter(ee.Filter.eq('line', 'Astoria'))
display(line)
m.add_layer(line, {'color': 'yellow'}, 'Astoria line')
m