orchidmap-front/src/utils/simplify.ts
2020-02-11 11:04:57 +07:00

9 lines
401 B
TypeScript

import { Map, LineUtil, LatLng } from 'leaflet';
import { MainMap } from '~/constants/map';
export const simplify = (latlngs: LatLng[]): LatLng[] => {
const zoom = 12;
const mul = 0.7; // 0 - not simplifying, 1 - very rude.
const points = latlngs.map(({ lat, lng }) => MainMap.project({ lat, lng }, zoom));
return LineUtil.simplify(points, mul).map(item => MainMap.unproject(item, zoom));
};