leaflet-polydraw/dist/types/transform/transform-utils.d.ts

Advanced Leaflet plugin for freehand polygon drawing, with smart merging and powerful editing tools. Compatible with both Leaflet v1.x and v2.x.

/**
 * Math and conversion helpers for transform mode.
 * All transforms happen in pixel space and then convert back to lat/lng.
 */
import * as L from 'leaflet';
import type { PixelPoint, PixelBBox } from './transform-types';
export declare function latLngToPixel(map: L.Map, ll: L.LatLngLiteral): PixelPoint;
export declare function pixelToLatLng(map: L.Map, p: PixelPoint): L.LatLngLiteral;
export declare function getPixelBBox(rings: PixelPoint[][][]): PixelBBox;
export declare function getPixelCentroid(bbox: PixelBBox): PixelPoint;
/**
 * Converts a bounding box to a square, centering the original content.
 */
export declare function squareBBox(bbox: PixelBBox): PixelBBox;
export declare function rotatePointAround(p: PixelPoint, pivot: PixelPoint, radians: number): PixelPoint;
export declare function scalePointAround(p: PixelPoint, pivot: PixelPoint, scaleX: number, scaleY: number): PixelPoint;
export declare function applyTransform(rings: PixelPoint[][][], pivot: PixelPoint, scaleX: number, scaleY: number, rotation: number): PixelPoint[][][];
export declare function ensureClosedLatLngRing(ll: L.LatLngLiteral[]): L.LatLngLiteral[];
export declare function normalizeLatLngs(input: L.LatLng[] | L.LatLng[][] | L.LatLng[][][]): L.LatLng[][][];
export declare function projectLatLngs(map: L.Map, latLngs: L.LatLng[][][]): {
    rings: PixelPoint[][][];
    ringLengths: number[][];
};
export declare function unprojectToLatLngs(map: L.Map, rings: PixelPoint[][][], templateLatLngs: L.LatLng[][][]): L.LatLngLiteral[][][];
export declare function snapAngleRadians(angle: number, stepDeg?: number): number;
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