Class TiandituImageLayer

基础图层抽象类

Hierarchy

BaseLayer
- TiandituImageLayer

Index

Constructors

Properties

base layerCaption? layerExtent? layerInfo? layerLegend? layerOpt

Methods

filterLayer getLayerBounds getLayerInfo getLegendInfo getRequestHeaders initCesiumLayer loadingLayer performCenter setLayerGray setLayerOpacity setLayerVisible

Constructors

constructor

new TiandituImageLayer(opt: LayerOption, base: CABase): TiandituImageLayer
Parameters
- opt: LayerOption
- base: CABase
Returns TiandituImageLayer
Overrides BaseLayer.constructor
- Defined in layers/TiandituImageLayer.ts:16

Properties

base

base: CABase

工具集

`Optional` layerCaption

layerCaption?: string

图层别名

`Optional` layerExtent

layerExtent?: Extent

图层范围

`Optional` layerInfo

layerInfo?: any

图层Json信息

`Optional` layerLegend

layerLegend?: Legend

图层图例信息

layerOpt

layerOpt: LayerOption

图层参数

Methods

filterLayer

filterLayer(legendItems: any, dataSourceName?: string): void
图例过滤
Parameters
- legendItems: any
- Optional dataSourceName: string
Returns void
Overrides BaseLayer.filterLayer
- Defined in layers/TiandituImageLayer.ts:81

getLayerBounds

getLayerBounds(): any
获取图层显示范围

Returns any
Overrides BaseLayer.getLayerBounds
- Defined in layers/TiandituImageLayer.ts:212

`Protected` getLayerInfo

getLayerInfo(): Promise<void>
解析图层xml信息(内部调用)

Returns Promise<void>
Overrides BaseLayer.getLayerInfo
- Defined in layers/TiandituImageLayer.ts:88

getLegendInfo

getLegendInfo(): Promise<any>
获取图层图例信息

Returns Promise<any>
Overrides BaseLayer.getLegendInfo
- Defined in layers/TiandituImageLayer.ts:59

`Protected` getRequestHeaders

getRequestHeaders(): any
获取图层请求头

Returns
返回图层请求头

Returns any
Inherited from BaseLayer.getRequestHeaders
- Defined in layers/BaseLayer.ts:139

`Protected` initCesiumLayer

initCesiumLayer(opt: LayerOption): Promise<unknown>
初始化加载国家天地图服务（内部调用）
Parameters
- opt: LayerOption
  
  图层参数对象
Returns Promise<unknown>
Overrides BaseLayer.initCesiumLayer
- Defined in layers/TiandituImageLayer.ts:126

loadingLayer

loadingLayer(): Promise<any>
初始化图层

Returns
Promise

Returns Promise<any>
Inherited from BaseLayer.loadingLayer
- Defined in layers/BaseLayer.ts:65

performCenter

performCenter(): Promise<void>
聚焦图层，视角定位

Returns Promise<void>
Inherited from BaseLayer.performCenter
- Defined in layers/BaseLayer.ts:118

setLayerGray

setLayerGray(isGray: boolean): void
图层置灰
Parameters
- isGray: boolean
  
  是否置灰
Returns void
Overrides BaseLayer.setLayerGray
- Defined in layers/TiandituImageLayer.ts:48

setLayerOpacity

setLayerOpacity(opacity: number): void
设置图层透明度
Parameters
- opacity: number
  
  透明度值[0,1]
Returns void
Overrides BaseLayer.setLayerOpacity
- Defined in layers/TiandituImageLayer.ts:36

setLayerVisible

setLayerVisible(visible: boolean): void
设置图层显隐
Parameters
- visible: boolean
  
  显示状态
Returns void
Overrides BaseLayer.setLayerVisible
- Defined in layers/TiandituImageLayer.ts:24

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