Class TileCanvasLoader`Abstract`

Canvas材质加载器抽象基类，子类实现 drawTile 方法绘制瓦片内容

Implements

ITileMaterialLoader<ITileMaterial>

Index

Constructors

Properties

Methods

Constructors

constructor

new TileCanvasLoader(): TileCanvasLoader
Returns TileCanvasLoader

Properties

`Readonly`dataType

dataType: string = ""

数据类型标记

`Readonly`info

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

加载器信息

Methods

`Protected` `Abstract`drawTile

drawTile(
ctx: OffscreenCanvasRenderingContext2D,
params: TileSourceLoadParamsType,
): void
在Canvas上绘制瓦片内容，由子类实现
Parameters
- ctx: OffscreenCanvasRenderingContext2D
  Canvas渲染上下文
- params: TileSourceLoadParamsType
  瓦片加载参数
Returns void
- Defined in packages/lib/src/loader/TileCanvasLoader.ts:60

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
Implementation of ITileMaterialLoader.load
- Defined in packages/lib/src/loader/TileCanvasLoader.ts:28