Class MVTLoader

MVT 矢量瓦片加载器

加载 .mvt 格式的矢量瓦片，按图层名匹配样式（style.layer），在 OffscreenCanvas 上绘制后生成 CanvasTexture。

Hierarchy

TileMaterialLoader
- MVTLoader

Index

Constructors

Properties

Accessors

Methods

createMaterial doLoad load

Constructors

constructor

new MVTLoader(): MVTLoader
Returns MVTLoader
Overrides TileMaterialLoader.constructor
- Defined in packages/plugin/src/mvtLoader/MVTLoader.ts:44

Properties

`Readonly`dataType

dataType: string = "mvt"

`Readonly`info

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

Accessors

material

get material(): ITileMaterial
获取默认材质

Returns ITileMaterial
Inherited from ContourLoader.material
- Defined in packages/lib/dist/index.d.ts:1479
set material(value: ITileMaterial): void
设置默认材质（自动释放旧材质）
Parameters
- value: ITileMaterial
Returns void
Inherited from ContourLoader.material
- Defined in packages/lib/dist/index.d.ts:1481

Methods

createMaterial

createMaterial(_params: TileSourceLoadParamsType): ITileMaterial
创建瓦片材质实例
Parameters
- _params: TileSourceLoadParamsType
  瓦片加载参数
Returns ITileMaterial
瓦片材质
Inherited from TileMaterialLoader.createMaterial
- Defined in packages/lib/dist/index.d.ts:1493

`Protected`doLoad

doLoad(
url: string,
params: TileLoadClipParamsType<MVTSource>,
): Promise<Texture<unknown>>
加载并解析 MVT 瓦片，返回 Canvas 纹理
Parameters
- url: string
  瓦片 URL
- params: TileLoadClipParamsType<MVTSource>
  加载参数（含 source.style）
Returns Promise<Texture<unknown>>
Canvas 纹理
Overrides TileMaterialLoader.doLoad
- Defined in packages/plugin/src/mvtLoader/MVTLoader.ts:55

load

load(params: TileSourceLoadParamsType): Promise<ITileMaterial>
从数据源加载瓦片材质
Parameters
- params: TileSourceLoadParamsType
  瓦片加载参数（数据源、坐标、范围等）
Returns Promise<ITileMaterial>
瓦片材质
Inherited from TileMaterialLoader.load
- Defined in packages/lib/dist/index.d.ts:1487