1.注冊Cesium Ion賬號,注冊地址:Sign In | Cesium ion
否則,加載數據會報錯{code: "InvalidCredentials", message: "Invalid access token"}

2.在“Access Depot”中選擇你需要的數據源,添加到“My Assets”。(此步驟可忽略。注冊賬號后,默認添加的數據源中已包含地形)

3.獲取token

4.設置token
// 在初始化 Cesium.Viewer 之前,設置token Cesium.Ion.defaultAccessToken = '你的token'
5.參考示例,加載地形數據

6.效果圖

完整的js代碼片段
Cesium.Ion.defaultAccessToken = '你的token'
var viewer = new Cesium.Viewer('cesiumContainer', {
shouldAnimate: true,
animation: false,
baseLayerPicker: false,
fullscreenButton: false,
geocoder: false,
homeButton: false,
infoBox: false,
sceneModePicker: false,
selectionIndicator: false,
timeline: false,
navigationHelpButton: false,
terrainProvider: new Cesium.CesiumTerrainProvider({
url: Cesium.IonResource.fromAssetId(1)
}),
sceneMode: Cesium.SceneMode.SCENE3D
})
viewer.imageryLayers.addImageryProvider(
new Cesium.IonImageryProvider({ assetId: 3 })
)
