公告:凡是在
2025 年 4 月 15 日前註冊使用 Earth Engine 的非商業專案,都必須
驗證非商業用途資格,才能繼續存取 Earth Engine。
ee.ImageCollection.combine
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
建立新集合,內含主要集合中的圖片副本,並加入次要集合中 ID 相符的所有波段。如果沒有相符的 ID,產生的集合就會是空白。這等同於對 ID 執行內部聯結,並合併結果的頻帶。
請注意,這項演算法假設相符的輸入內容組合具有相同的足跡和中繼資料。
用量 | 傳回 |
---|
ImageCollection.combine(secondary, overwrite) | ImageCollection |
引數 | 類型 | 詳細資料 |
---|
這個:primary | ImageCollection | 要加入的主要集合。 |
secondary | ImageCollection | 要加入的次要集合。 |
overwrite | 布林值,預設值為 false | 如果是 true,系統會覆寫名稱相同的樂團。如果為 false,系統會重新命名名稱相同的樂團。 |
除非另有註明,否則本頁面中的內容是採用創用 CC 姓名標示 4.0 授權,程式碼範例則為阿帕契 2.0 授權。詳情請參閱《Google Developers 網站政策》。Java 是 Oracle 和/或其關聯企業的註冊商標。
上次更新時間:2025-07-26 (世界標準時間)。
[null,null,["上次更新時間:2025-07-26 (世界標準時間)。"],[[["\u003cp\u003eCreates a new image collection by combining images from two input collections based on matching IDs.\u003c/p\u003e\n"],["\u003cp\u003eMerges bands from matching images, resulting in an empty collection if no IDs match.\u003c/p\u003e\n"],["\u003cp\u003eImages with the same ID in both input collections are assumed to have identical footprint and metadata.\u003c/p\u003e\n"],["\u003cp\u003eBand names are preserved by default, but can be overwritten using the \u003ccode\u003eoverwrite\u003c/code\u003e parameter.\u003c/p\u003e\n"]]],["The function combines two `ImageCollections` (`primary` and `secondary`) by performing an inner join based on matching IDs. It copies images from the `primary` collection and adds bands from the `secondary` collection with the corresponding ID. If no matching ID is found, the resulting collection is empty. Band names that are the same can either be renamed or overwritten based on the `overwrite` flag. The function returns a new `ImageCollection`.\n"],null,["# ee.ImageCollection.combine\n\nMakes a new collection that is a copy of the images in primary, adding all the bands from the image in secondary with a matching ID. If there are no matching IDs, the resulting collection will be empty. This is equivalent to an inner join on ID with merging of the bands of the result.\n\n\u003cbr /\u003e\n\nNote that this algorithm assumes that for a matching pair of inputs, both have the same footprint and metadata.\n\n| Usage | Returns |\n|-----------------------------------------------------|-----------------|\n| ImageCollection.combine`(secondary, `*overwrite*`)` | ImageCollection |\n\n| Argument | Type | Details |\n|-----------------|-------------------------|-------------------------------------------------------------------------------------------------------------|\n| this: `primary` | ImageCollection | The primary collection to join. |\n| `secondary` | ImageCollection | The secondary collection to join. |\n| `overwrite` | Boolean, default: false | If true, bands with the same name will get overwritten. If false, bands with the same name will be renamed. |"]]