Ion

Default settings for accessing the Cesium ion API. An ion access token is only required if you are using any ion related APIs. A default access token is provided for evaluation purposes only. Sign up for a free ion account and get your own access token at https://cesium.com
参考:

成员(属性)

static Cesium.Ion.defaultAccessToken : string

Gets or sets the default Cesium ion access token.

static Cesium.Ion.defaultServer : string|Resource

Gets or sets the default Cesium ion server.
默认值: https://api.cesium.com