# 68. Mutatie: statistieken van "VectorAnalysisMap" vernieuwen

Ververs statistieken voor Zones-kaart. Kan worden gebruikt wanneer Samenvoegen/Splitsen van Zones in de UI is uitgevoerd.

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

Mutatie om statistieken te verversen zonder ze in de database op te slaan. De respons bevat de herberekende statistieken als JSON.

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

```graphql
mutatie 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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