Function registerHatchPattern

registerHatchPattern(
    mapArg: unknown,
    patternId: string,
    hatchConfig: HatchConfig,
    pixelRatio?: number,
): string
Registers a hatch pattern image on a MapLibre map instance.
Parameters
- mapArg: unknown
  The map. Typed unknown and named mapArg because cross-module callers (geojson, vector-tiles) pass a permissive structural view; the runtime value is always the native maplibregl.Map.
- patternId: string
  Unique pattern ID (from buildHatchPatternId).
- hatchConfig: HatchConfig
  Hatch configuration.
- pixelRatio: number = DEFAULT_PIXEL_RATIO
  Device pixel ratio.
Returns string
The pattern ID (for use in fill-pattern).
Default
```
2
```
- Defined in src/adapters/maplibre/maplibre-hatch-patterns.ts:142