Class TileMaterialLogoLoader

瓦片 LOGO 标注加载器

继承自 TileCanvasLoader，在 Canvas 上绘制数据源的版权归属文字，文字沿对角线旋转 45°，带黑白阴影效果，居中显示在瓦片上。

Hierarchy

TileCanvasLoader
- TileMaterialLogoLoader

Index

Constructors

Properties

Methods

Constructors

constructor

new TileMaterialLogoLoader(): TileMaterialLogoLoader
Returns TileMaterialLogoLoader
Inherited from TileCanvasLoader.constructor

Properties

`Readonly`dataType

dataType: string = "logo"

`Readonly`info

info: { description: string; version: string } = ...

Methods

`Protected`drawTile

drawTile(
ctx: OffscreenCanvasRenderingContext2D,
params: TileSourceLoadParamsType,
): void
在瓦片 Canvas 上绘制 attribution 文字
Parameters
- ctx: OffscreenCanvasRenderingContext2D
  瓦片 Canvas 上下文
- params: TileSourceLoadParamsType
  瓦片加载参数（包含 source.attribution）
Returns void
Overrides TileCanvasLoader.drawTile
- Defined in packages/plugin/src/logoLoader/TileMaterialLogoLoader.ts:28

load

load(params: TileSourceLoadParamsType): Promise<TileMaterial>
异步加载瓦片材质，通过Canvas绘制生成纹理
Parameters
- params: TileSourceLoadParamsType
  瓦片加载参数
Returns Promise<TileMaterial>
瓦片材质
Inherited from TileCanvasLoader.load
- Defined in packages/lib/dist/index.d.ts:1027