@types/proj4leaflet/README.md

TypeScript definitions for proj4leaflet

# Installation
> `npm install --save @types/proj4leaflet`

# Summary
This package contains type definitions for proj4leaflet (https://github.com/kartena/Proj4Leaflet#readme).

# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/proj4leaflet.
## [index.d.ts](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/proj4leaflet/index.d.ts)
````ts
import * as geojson from "geojson";
import * as L from "leaflet";
import { Converter } from "proj4/dist/lib/core";

declare module "leaflet" {
    namespace Proj {
        class CRS implements CRS {
            projection: Projection;
            transformation: Transformation;
            code?: string | undefined;
            wrapLng?: [number, number] | undefined;
            wrapLat?: [number, number] | undefined;
            infinite: boolean;

            constructor(projection: Converter, options?: ProjCRSOptions);
            constructor(code: string, proj4def: string, options?: ProjCRSOptions);

            latLngToPoint(latlng: LatLngExpression, zoom: number): Point;

            pointToLatLng(point: PointExpression, zoom: number): LatLng;

            project(latlng: LatLng | LatLngLiteral): Point;

            unproject(point: PointExpression): LatLng;

            scale(zoom: number): number;

            zoom(scale: number): number;

            getProjectedBounds(zoom: number): Bounds;

            distance(latlng1: LatLngExpression, latlng2: LatLngExpression): number;

            wrapLatLng(latlng: LatLng | LatLngLiteral): LatLng;
        }

        class GeoJSON extends L.GeoJSON {}

        function geoJson(geojson?: Proj4GeoJSONFeature, options?: GeoJSONOptions): GeoJSON;

        class ImageOverlay extends L.ImageOverlay {}

        function imageOverlay(
            imageUrl: string,
            bounds: LatLngBoundsExpression,
            options?: ImageOverlayOptions,
        ): ImageOverlay;

        interface ProjCRSOptions {
            bounds?: Bounds | undefined;
            origin?: [number, number] | undefined;
            scales?: number[] | undefined;
            resolutions?: number[] | undefined;
            transformation?: Transformation | undefined;
        }
    }
}
export type Proj4GeoJSONFeature = geojson.Feature<geojson.GeometryObject> & {
    crs?: { type: string; properties: { name: string } } | undefined;
};

````

### Additional Details
 * Last updated: Tue, 01 Jul 2025 16:39:24 GMT
 * Dependencies: [@types/geojson](https://npmjs.com/package/@types/geojson), [@types/leaflet](https://npmjs.com/package/@types/leaflet), [proj4](https://npmjs.com/package/proj4)

# Credits
These definitions were written by [BendingBender](https://github.com/BendingBender).