-
layerId
Number
場景服務圖層的圖層 ID 或圖層索引。當從包含多個圖層的服務加載帶有 PortalItem 屬性的單個圖層時,這特別有用。您可以在以下兩種情況之一指定此值:
- 通過 PortalItem 屬性加載圖層時。
- 將圖層 url 直接指向場景服務時。
如果在上述任一情況下均未指定 layerId,則選擇服務中的第一層 (
layerId = 0
)。例子:
// while these examples use a SceneLayer, the same pattern can be // used for other layers that may be loaded from portalItem ids // loads the third layer in the given Portal Item let layer = new SceneLayer({ portalItem: { id: "73df987984b24094b848d580eb83b0fb" }, layerId: 2 });
// If not specified, the first layer (layerId: 0) will be returned let layer = new SceneLayer({ portalItem: { id: "73df987984b24094b848d580eb83b0fb" } });
// Can also be used if URL points to service and not layer let layer = new SceneLayer({ url: "https://scenesampleserverdev.arcgis.com/arcgis/rest/services/Hosted/DevA_Trees/SceneServer", layerId: 0 // Notice that the url doesn't end with /2 });
// This code returns the same layer as the previous snippet let layer = new SceneLayer({ url: "https://scenesampleserverdev.arcgis.com/arcgis/rest/services/Hosted/DevA_Trees/SceneServer/layers/0", // The layer id is specified in the URL });
基本信息
以下是所在類或對象的基本信息。
AMD:
require(["esri/layers/BuildingSceneLayer"], (BuildingSceneLayer) => { /* code goes here */ });
ESM:
import BuildingSceneLayer from "@arcgis/core/layers/BuildingSceneLayer";
類:
esri/layers/BuildingSceneLayer
繼承: BuildingSceneLayer > Layer > Accessor
自從:用於 JavaScript 4.10 的 ArcGIS API
用法說明
BuildingSceneLayer.layerId
函數(或屬性)的定義如下:
相關用法
- JavaScript ArcGIS BuildingSceneLayer.loadAll用法及代碼示例
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- JavaScript ArcGIS BuildingSceneLayer.minScale用法及代碼示例
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- JavaScript ArcGIS BuildingSceneLayer.fullExtent用法及代碼示例
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- JavaScript ArcGIS BuildingSceneLayer.allSublayers用法及代碼示例
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- JavaScript ArcGIS BuildingSceneLayer用法及代碼示例
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- JavaScript ArcGIS BuildingSceneLayer layerview-create-error事件用法及代碼示例
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- JavaScript ArcGIS BuildingSublayer.modelName用法及代碼示例
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注:本文由純淨天空篩選整理自arcgis.com大神的英文原創作品 BuildingSceneLayer.layerId。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。