HarmonyOS 鸿蒙Next 地图map上添加了多个marker，如何设置才能全部展示在地图的可见区域内

import { map, mapCommon, MapComponent } from '@kit.MapKit'
import { AsyncCallback } from '@kit.BasicServicesKit'
@Entry
@Component
struct MarkerDemo {
  private TAG = "OHMapSDK_MarkerDemo";
  private mapOption?: mapCommon.MapOptions;
  private mapController?: map.MapComponentController;
  private callback?: AsyncCallback<map.MapComponentController>;
  aboutToAppear():
    void {
    this.mapOption = {
      position: {
        target: {
          latitude: 32.120750, longitude: 118.788765
        },
        zoom: 15
      }
    }
    this.callback = async (err, mapController) => {
      if (!err) {
        this.mapController = mapController;
        let markerOptions: mapCommon.MarkerOptions = {
          position: {
            latitude: 32.120750, longitude: 118.788765
          },
          clickable: true, // 设置信息窗标题
          title: "自定义信息窗",
        };
        await this.mapController?.addMarker(markerOptions);
      }
    }
  }
  build() {
    Stack() {
      Column() {
        MapComponent({
          mapOptions: this.mapOption,
          mapCallback: this.callback, // 自定义信息窗
          customInfoWindow: this.customInfoWindow })
          .width('100%')
          .height('100%');
      }.width('100%')
    }.height('100%')
  }
  // 自定义信息窗BuilderParam
  @BuilderParam customInfoWindow: ($$: map.MarkerDelegate) => void = this.customInfoWindowBuilder;
  // 自定义信息窗Builder
  @Builder customInfoWindowBuilder($$: map.MarkerDelegate) {
    if ($$.marker) {
      Text($$.marker.getTitle())
        .width("50%") .height(50)
        .backgroundColor(Color.Green)
        .textAlign(TextAlign.Center)
        .fontColor(Color.Black)
        .font({ size: 25, weight: 10, style: FontStyle.Italic })
        .border({ width: 3, color: Color.Black, radius: 25, style: BorderStyle.Dashed
        })
    }
  }
}