# 72. Query: gerasterde data ophalen als GeoJSON of GeoTIFF

Query om gegridde gegevens uit datasets zoals "FieldSatelliteImage", "TopographyMap", "SoilDataset", "YieldDataset", "AsAppliedDataset", "VectorAnalysisMap" op te halen als `GEOJSON` met punten of `GEOTIFF`. 

{% hint style="danger" %}
Aanbevolen om slechts één dataset op te halen met `sourceDataUrl` per verzoek. 
{% endhint %}

`GEOTIFF` en `GEOJSON` zijn beschikbaar als `formaten`.

{% hint style="danger" %}
`sourceDataUrl` link is alleen toegankelijk voor **60 sec.**
{% endhint %}

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

```graphql
query GetRawVectorDataFromSatelliteImage {
  getFarms (farmUuids: ["<placeholder_of_farm_uuid>"]){
    uuid
    naam
    fields (fieldUuids: ["<placeholder_of_field_uuid>"]) {
      uuid
      naam
      satelliteImages(satelliteImageUuids: ["<placeholder_of_satelliteimage_uuid>"]) {
        uuid
        sourceDataUrl(formaat: GEOTIFF)
      }
    }
  }
}
```

{% endcode %}


---

# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.