Class TerrainProvider

地形供应商基类

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Date

2022.5.17

Author

lyx

Hierarchy

TerrainProvider
- ArcGISTerrainProvider
- MapboxTerrainProvider

Index

Constructors

Properties

_levelZeroMaximumGeometricError _maxTileSize _terrainQuality elevation exaggeration maxAltitude maxZoom minAltitude minZoom name segments skirt

Accessors

Methods

fetchPlanarTile fetchTile getLevelZeroMaximumGeometricError getSkirtHeight isReady release

Constructors

constructor

new TerrainProvider(parameters?): TerrainProvider
Parameters
- parameters: TerrainProviderParameters = {}
Returns TerrainProvider

Properties

`Protected` _levelZeroMaximumGeometricError

_levelZeroMaximumGeometricError: number

`Protected` _maxTileSize

_maxTileSize: Vector2

`Protected` _terrainQuality

_terrainQuality: number

`Readonly` elevation

elevation: number

固定海拔高度

Memberof

TerrainProvider

`Readonly` exaggeration

exaggeration: number

高度夸张系数

Memberof

TerrainProvider

maxAltitude

maxAltitude: number

`Readonly` maxZoom

maxZoom: number

最大缩放等级

Memberof

TerrainProvider

minAltitude

minAltitude: number

`Readonly` minZoom

minZoom: number

最小缩放等级

Memberof

TerrainProvider

`Readonly` name

name: string

名称

Memberof

TerrainProvider

`Readonly` segments

segments: number

瓦片分割份数

Memberof

TerrainProvider

`Readonly` skirt

skirt: boolean

瓦片是否有裙边

Memberof

TerrainProvider

Accessors

maxTileSize

get maxTileSize(): Readonly<Vector2>
获取最大瓦片尺寸（即0级瓦片尺寸）

Returns Readonly<Vector2>

Memberof
TerrainProvider
set maxTileSize(value): void
设置最大瓦片尺寸（即0级瓦片尺寸）
Parameters
- value: number[] | Vector2
Returns void

Memberof
TerrainProvider

Methods

fetchPlanarTile

fetchPlanarTile(zoom): TileVertexAtrributes
获取平面瓦片顶点数据
Parameters
- zoom: number
Returns TileVertexAtrributes

Memberof
TerrainProvider

fetchTile

fetchTile(zoom, x, y): Promise<TileVertexAtrributes>
获取地形数据
Parameters
- zoom: number
  
  瓦片缩放等级
- x: number
  
  瓦片行号
- y: number
  
  瓦片列号
Returns Promise<TileVertexAtrributes>

Memberof
TerrainProvider

getLevelZeroMaximumGeometricError

getLevelZeroMaximumGeometricError(): number
获取0级瓦片的最大几何误差

Returns number

Memberof
TerrainProvider

getSkirtHeight

getSkirtHeight(zoom): number
获取指定层级的裙边高度
Parameters
- zoom: number
  
  瓦片地图层级
Returns number

Memberof
TerrainProvider

isReady

isReady(): boolean
是否已准备好

Returns boolean

Memberof
TerrainProvider

release

release(): void
释放接口

Returns void

Memberof
TerrainProvider