TimeDynamicImagery
查阅Mars3D API

new Cesium.TimeDynamicImagery(options)
engine/Source/Scene/TimeDynamicImagery.js 21

Provides functionality for ImageryProviders that have time dynamic imagery
参数名称 类型 描述信息
options object Object with the following properties:
参数名称 类型 描述信息
clock Clock A Clock instance that is used when determining the value for the time dimension. Required when options.times is specified.
times TimeIntervalCollection TimeIntervalCollection with its data property being an object containing time dynamic dimension and their values.
requestImageFunction function A function that will request imagery tiles.
reloadFunction function A function that will be called when all imagery tiles need to be reloaded.

成员(属性)

clock : Clock
engine/Source/Scene/TimeDynamicImagery.js 53

Gets or sets a clock that is used to get keep the time used for time dynamic parameters.

currentInterval : TimeInterval
engine/Source/Scene/TimeDynamicImagery.js 99

Gets the current interval.

times : TimeIntervalCollection
engine/Source/Scene/TimeDynamicImagery.js 76

Gets or sets a time interval collection.

方法

checkApproachingInterval(x, y, level, request)
engine/Source/Scene/TimeDynamicImagery.js 143

Checks if the next interval is approaching and will start preload the tile if necessary. Otherwise it will just add the tile to a list to preload when we approach the next interval.
参数名称 类型 描述信息
x number The tile X coordinate.
y number The tile Y coordinate.
level number The tile level.
request Request 可选 The request object. Intended for internal use only.

getFromCache(x, y, level, request) → Promise.<HTMLImageElement>|undefined
engine/Source/Scene/TimeDynamicImagery.js 117

Gets the tile from the cache if its available.
参数名称 类型 描述信息
x number The tile X coordinate.
y number The tile Y coordinate.
level number The tile level.
request Request 可选 The request object. Intended for internal use only.
返回值:
A promise for the image that will resolve when the image is available, or undefined if the tile is not in the cache.
packages/engine
packages/widgets