# 81. Spørring: Hent GeoJSON av "EquationMap"

Hent GeoJSON for "EquationMaps" filtrert etter `equationMapUuids`.

Attributtet `equationMapGeojson` inneholder GeoJSON med `Polygoner` eller `MultyPolygons` inkludert geospatiale funksjonsattributter som `id`, `value` og `areal` i de definerte enhetene.

Nøkkeldetaljer:

* Parameter `asMultiGeometry: true` betyr at `Polygoner` ("Equation Map" celler) vil bli slått sammen til `MultiPolygoner` basert på `value` attributtet til hver "Equation Map"-celle.
* Utdataarealet kan konfigureres ved å bruke `unit` parameter. Tilgjengelige valg: `ACRES`,  `HECTARES`, `SQUARE_METERS`

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

```graphql
query GetEquationMapGeometries {
  getFields (filter: {fieldUuid: "<placeholder_of_farm_uuid>"}) {
    fields {
      equationMaps(equationMapUuids: ["<placeholder_of_equationmap_uuid>"]) {
        equationMapGeojson(unit: HECTARES, asMultiGeometry: true)        
      }
    }
  }
}
```

{% endcode %}

Hvis geometrier ikke blir forespurt (kun attributter trengs), så finnes det `attributesJson` i stedet for `equationMapGeojson` å bruke.

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

```graphql
query GetEquationMapAttributes {
  getFields (filter: {fieldUuid: "<placeholder_of_farm_uuid>"}) {
    fields {
      equationMaps(equationMapUuids: ["<placeholder_of_equationmap_uuid>"]) {
        attributesJson(unit: HECTARES, asMultiGeometry: true)        
      }
    }
  }
}
```

{% endcode %}


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