驾车路线规划可以根据起终点获取驾车路线规划数据，并可以通过添加Polyline绘制出驾车路线，效果图：

let option: DrivingRoutePlanOption = {
            mFrom: PlanNode.withLocation(fromArr),
            mTo: PlanNode.withLocation(toArr)
          }
          RoutePlanSearch.newInstance().drivingSearch(option)
            .then((res: DrivingRouteResult) => {
                let resultLine: Array<LatLng> = []
              if (typeof res.routeLines === "undefined") {
                return
              }
              let line = res.routeLines[0]
              let steps = line.steps
              for (let i = 0; i < steps.length; i++) {
                let step = steps[i]
                step.pathList.forEach(element => {
                  resultLine.push(element)
                })
              }

              let polyline = new Polyline({
                points: resultLine,
                fillcolor: '#6af',
                width: 10,
                join: SysEnum.LineJoinType.ROUND,
                cap: SysEnum.LineCapType.ROUND,
                isThined: true,
                isGeodesic: true
              });
              this.map?.addOverlay(polyline);
            })