# Interface (MarkerClusterInfo)

> phone 5.0.3(15)+ | 2in1 5.0.3(15)+ | tablet 5.0.3(15)+ | wearable 5.1.0(18)+

## 导入模块

```typescript
import { map, mapCommon } from '@kit.MapKit';
```

## MarkerClusterInfo

聚合图层的标记的信息。当进入室内图时，会通过[on](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/map-map-clusteroverlay#onclusterclick)方法触发回调，并返回[MarkerClusterInfo](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/map-map-markerclusterinfo)类型的实例。

**模型约束：** 此接口仅可在Stage模型下使用。

**元服务API：** 从版本5.0.3(15)开始，该接口支持在元服务中使用。

**系统能力：** SystemCapability.Map.Core

**起始版本：** 5.0.3(15)

|**名称**|**类型**|只读|可选|**说明**|
|:-----------|:-----------------------------------------------------------------------------------------------------------------------|:-|:-|:-------|
|marker|[Marker](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/map-map-marker)|否|否|聚合图层的标记。|
|clusterItems|Array<[mapCommon.ClusterItem](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/map-common#clusteritem)>|否|否|聚合节点数组。|

**示例：**

```typescript
let clusterItem1: mapCommon.ClusterItem = {
  position: {
    latitude: 31.984,
    longitude: 118.766
  }
};
let clusterItem2: mapCommon.ClusterItem = {
  position: {
    latitude: 31.974,
    longitude: 118.75
  }
};
let array: Array<mapCommon.ClusterItem> = [
  clusterItem1,
  clusterItem2
];
let clusterOverlayParams: mapCommon.ClusterOverlayParams = {
  distance: 40,
  clusterItems: array
};
let clusterOverlay: map.ClusterOverlay = await this.mapController.addClusterOverlay(clusterOverlayParams);
let callback1 = (markerClusterInfo: map.MarkerClusterInfo) => {
  console.info("markerClusterClick", `callback1 markerClusterInfo`);
};
clusterOverlay.on("markerClusterClick", callback1);
```