-
portalItem
PortalItem
從中加載圖層的門戶項目。如果門戶項目引用要素服務或場景服務,則您可以使用 layerId 屬性指定要加載的單個圖層。
從版本 4.17 開始,可以從托管在 ArcGIS Online 和 ArcGIS Enterprise 中的要素服務項目加載表。這僅適用於 feature layers ,如果 FeatureLayer.isTable 返回
true
將成功加載。例子:
// While this example uses FeatureLayer, this same pattern can be // used for other layers that may be loaded from portalItem ids. const lyr = new FeatureLayer({ portalItem: { // autocasts as new PortalItem() id: "caa9bd9da1f4487cb4989824053bb847" } // the first layer in the service is returned });
// Set hostname when using an on-premise portal (default is ArcGIS Online) // esriConfig.portalUrl = "http://myHostName.esri.com/arcgis"; // While this example uses FeatureLayer, this same pattern can be // used for SceneLayers. const lyr = new FeatureLayer({ portalItem: { // autocasts as new PortalItem() id: "8d26f04f31f642b6828b7023b84c2188" }, // loads the third item in the given feature service layerId: 2 });
// This snippet loads a table hosted in ArcGIS Online. const table = new FeatureLayer({ portalItem: { // autocasts as esri/portal/PortalItem id: "123f4410054b43d7a0bacc1533ceb8dc" } }); // Before adding the table to the map, it must first be loaded and confirm it is the right type. table.load().then(function() { if (table.isTable) { map.tables.add(table); } });
基本信息
以下是所在類或對象的基本信息。
AMD:
require(["esri/layers/WMTSLayer"], (WMTSLayer) => { /* code goes here */ });
ESM:
import WMTSLayer from "@arcgis/core/layers/WMTSLayer";
類:
esri/layers/WMTSLayer
繼承: WMTSLayer > Layer > Accessor
自從:用於 JavaScript 4.4 的 ArcGIS API
用法說明
WMTSLayer.portalItem
函數(或屬性)的定義如下:
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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 WMTSLayer.portalItem。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。