# 68. التغيير: تحديث إحصاءات "VectorAnalysisMap"

يقوم بتحديث الإحصاءات لخريطة المناطق. يمكن استخدامه عند إجراء دمج/تقسيم المناطق على واجهة المستخدم.

{% hint style="info" %}
تحقق <https://geopard.tech/blog/merge-and-split-zones/> مقال.&#x20;
{% endhint %}

تبديل (Mutation) لتحديث الإحصاءات دون حفظها في قاعدة البيانات. تحتوي الاستجابة على الإحصاءات المعاد حسابها بصيغة JSON.

{% code overflow="wrap" lineNumbers="true" %}

```graphql
mutation RefreshVectorAnalysisStatistics {
  refreshVectorAnalysisMapStatistics(
    input: { 
      uuid: "<placeholder_of_vectoranalysismap_uuid>",
      fieldUuid: "<placeholder_of_field_uuid>",
      areaUnit: <area_unit>,
      zonesMapGeojson: "<geojson_with_escaped_doubel_quotes>"
    }
  )
}
```

{% endcode %}


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