@orca-fe/x-map/esm/utils/viewport.js

/**
 * 将经纬度列表转换为 bounds
 * @param posList 经纬度列表
 * @returns bounds
 */
export const path2Bounds = (posList) => {
    const b = posList.reduce(({ maxLng, minLng, maxLat, minLat }, [lng, lat]) => ({
        maxLng: Math.max(maxLng, lng),
        minLng: Math.min(minLng, lng),
        maxLat: Math.max(maxLat, lat),
        minLat: Math.min(minLat, lat),
    }), {
        maxLng: -Infinity,
        minLng: Infinity,
        maxLat: -Infinity,
        minLat: Infinity,
    });
    return [
        [b.minLng, b.minLat],
        [b.maxLng, b.maxLat],
    ];
};
export const toSimpleViewport = (viewport) => ({
    rotate: viewport.bearing,
    pitch: viewport.pitch,
    lng: viewport.longitude,
    lat: viewport.latitude,
    zoom: viewport.zoom,
    width: viewport.width,
    height: viewport.height,
});