# 81. Forespørgsel: Hent GeoJSON for "EquationMap"

Hent GeoJSON af "EquationMaps" filtreret efter `equationMapUuids`.

Attributten `equationMapGeojson` indeholder GeoJSON med `Polygons` eller `MultyPolygons` inklusive de geospatiale funktionsattributter som `id`, `value` og `areal` i de definerede enheder.

Nøgleoplysninger:

* Parameter `asMultiGeometry: true` betyder, at `Polygons` ("Equation Map" celler) vil blive slået sammen til `MultiPolygons` baseret på `value` attributten for hver "Equation Map" celle.
* Outputarealet kan konfigureres ved hjælp af `unit` parameter. Tilgængelige muligheder: `ACRES`,  `HEKTAR`, `KVADRATMETER`

{% 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 efterspørges (kun attributter er nødvendige), så er der `attributesJson` i stedet for `equationMapGeojson` at bruge.

{% 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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