公交路线规划可以根据起终点获取公交路线规划数据，并可以通过添加Polyline绘制出公交路线，效果图：

示例代码如下：

br: BusRoute = new BusRoute();
// 获取公交路线规划
br.getRouteLines(fromArr, toArr, (res: passpoints) => {
    try {
        let resultLine: Array<Latlng> = []
        let passpoints: Array<passpoint> = res.passpoints
        let passpoint: passpoint = passpoints[0]
        for (let i =0; i < passpoint.length; i++ ) {
            let path: Latlng = passpoint[i]
            let ll: Latlng = new Latlng(path.lat, path.lng)
            resultLine.push(ll)
        }
        // 绘制路线
        let polyline:Polyline = new Polyline({
            points: resultLine,
            fillcolor: '#a6f',
            width: 10,
            join: SysEnum.LineJoinType.ROUND,
            cap: SysEnum.LineCapType.BUTT,
            isThined: true,
            isGeodesic: true
        });
        this.mapController?.addOverlay(polyline);
    } catch (e) {

    }
}, {})