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ui.Map.DrawingTools.toFeatureCollection
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
傳回特徵集合，其中繪圖工具中的每個幾何圖形都是特徵。
| 用量 | 傳回 |
|---|
DrawingTools.toFeatureCollection(indexProperty) | FeatureCollection |
| 引數 | 類型 | 詳細資料 |
|---|
這個：ui.map.drawingtools | ui.Map.DrawingTools | ui.Map.DrawingTools 執行個體。 |
indexProperty | 字串 | 系統會將這個名稱的屬性指派給傳回集合中的每個特徵。屬性的值會是數字，對應於幾何圖層的索引，幾何體即屬於該圖層。 |
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\u003eReturns a FeatureCollection where each drawn geometry is represented as a separate feature.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003etoFeatureCollection()\u003c/code\u003e method takes an optional \u003ccode\u003eindexProperty\u003c/code\u003e argument, allowing you to assign a unique index to each feature based on its layer.\u003c/p\u003e\n"],["\u003cp\u003eAccess this functionality through the \u003ccode\u003eui.Map.DrawingTools\u003c/code\u003e instance, specifically using the DrawingTools object.\u003c/p\u003e\n"]]],["The `DrawingTools.toFeatureCollection` method converts drawn geometries into a FeatureCollection. It operates on a `ui.Map.DrawingTools` instance. The method accepts an `indexProperty` argument (a string). This property is added to each feature in the collection, and its value will reflect the index of the geometry layer where it was drawn. It returns a FeatureCollection object.\n"],null,["# ui.Map.DrawingTools.toFeatureCollection\n\n\u003cbr /\u003e\n\nReturns a feature collection in which each geometry in the drawing tools is a feature.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------------------------------------------|-------------------|\n| DrawingTools.toFeatureCollection`(indexProperty)` | FeatureCollection |\n\n| Argument | Type | Details |\n|-----------------------------|---------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| this: `ui.map.drawingtools` | ui.Map.DrawingTools | The ui.Map.DrawingTools instance. |\n| `indexProperty` | String | A property with this name will be assigned to every feature in the returned collection. The value of the property will be a number that corresponds to the index of the geometry layer to which the geometry belongs. |"]]
