ee.Filter.date

依日期範圍篩選集合。開始和結束日期可以是日期或數字

(解讀為自 1970 年 1 月 1 日 00:00:00Z 以來的毫秒數)，或是字串 (例如「1996-01-01T08:00」)。根據「system:time_start」屬性。

傳回建構的篩選器。

用量	傳回
ee.Filter.date(start, end)	篩選器

引數	類型	詳細資料
start	Date|Number|String	開始日期 (含)。
end	Date|Number|String，選填	結束日期 (不含)。(選用步驟) 如未指定，系統會建立從「start」開始的 1 毫秒範圍。

範例

程式碼編輯器 (JavaScript)

// collection.filterDate is preferred.
// Constructed FeatureCollection representing a field site sampled at
// four different dates.
var geom = ee.Geometry.Point([-119.56, 37.67]);
var fc = ee.FeatureCollection([
  ee.Feature(geom, {'prop': 10, 'system:time_start': ee.Date('2021-06-10')}),
  ee.Feature(geom, {'prop': 11, 'system:time_start': ee.Date('2021-06-20')}),
  ee.Feature(geom, {'prop': 19, 'system:time_start': ee.Date('2021-07-10')}),
  ee.Feature(geom, {'prop': 10, 'system:time_start': ee.Date('2021-07-20')})
]);

// Filter the observations in July 2021.
print('Field site observations collection in July 2021',
      fc.filter(ee.Filter.date('2021-07-01', '2021-08-01')));

// Alternative input formats.
var dateRange = ee.DateRange('2021-07-01', '2021-08-01');
print('ee.DateRange as an input',
      fc.filter(ee.Filter.date(dateRange)));

print('Numbers (milliseconds since Unix epoch) as an input',
      fc.filter(ee.Filter.date(1625875200000, 1626739200001)));

print('ee.Date objects as an input',
      fc.filter(ee.Filter.date(ee.Date('2021-07-01'), ee.Date('2021-08-01'))));

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)

from pprint import pprint

# collection.filterDate is preferred.
# Constructed FeatureCollection representing a field site sampled at
# four different dates.
geom = ee.Geometry.Point([-119.56, 37.67])
fc = ee.FeatureCollection([
    ee.Feature(geom, {'prop': 10, 'system:time_start': ee.Date('2021-06-10')}),
    ee.Feature(geom, {'prop': 11, 'system:time_start': ee.Date('2021-06-20')}),
    ee.Feature(geom, {'prop': 19, 'system:time_start': ee.Date('2021-07-10')}),
    ee.Feature(geom, {'prop': 10, 'system:time_start': ee.Date('2021-07-20')})
])

# Filter the observations in July 2021.
print('Field site observations collection in July 2021:')
pprint(fc.filter(ee.Filter.date('2021-07-01', '2021-08-01')).getInfo())

# Alternative input formats.
date_range = ee.DateRange('2021-07-01', '2021-08-01')
pprint(fc.filter(ee.Filter.date(date_range)).getInfo())

print('Numbers (milliseconds since Unix epoch) as an input:')
pprint(fc.filter(ee.Filter.date(1625875200000, 1626739200001)).getInfo())

print('ee.Date objects as an input:')
pprint(
    fc.filter(
        ee.Filter.date(ee.Date('2021-07-01'), ee.Date('2021-08-01'))
    ).getInfo()
)