> For the complete documentation index, see [llms.txt](https://docs.geopard.tech/geopard-tutorials/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.geopard.tech/geopard-tutorials/cze/dokumentace-api/prehled-pozadavku-geopard-api/51.-dotaz-ziskani-rastrovych-dat-z-vynosoveho-datasetu.md).

# 51. Dotaz: Získání rastrových dat z „výnosového datasetu“

Dotaz pro získání rastrálních (mřížkových) dat z datasetu „YieldDataset“ jako `GEOJSON`  s body nebo `GEOTIFF`.Atribut properties obsahuje všechny atributy datasetu pro každý bod. 

#### 1. Požádejte o soubor k exportu

{% hint style="danger" %}
Doporučuje se načítat pouze jednu sadu dat s `sourceDataUrl` na jeden požadavek. 
{% endhint %}

`NoBuffer`, `PlusOnePixel`, `PlusTwoPixels`, `MinusOnePixel`, a `MinusTwoPixels` jsou dostupné jako `vyrovnávací pásmo`.

`GEOJSON` a `GEOTIFF` jsou dostupné jako formát. 

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

```graphql
query GetGriddedDataFromYieldDataset {
  getFarms (farmUuids: ["<placeholder_of_farm_uuid>"]){
    uuid
    fields (fieldUuids: ["<placeholder_of_field_uuid>"]) {
      uuid
      yieldDatasets(yieldDatasetUuids: ["<placeholder_of_dataset_uuid>"]) {
        uuid
        sourceDataUrl(format: GEOJSON buffer: PlusTwoPixels)
      }
    }
  }
}
```

{% endcode %}

#### 2. Stáhněte vygenerovaný soubor

Po úspěšném připravení souboru je možné ho stáhnout pomocí `curl` nebo podobným způsobem.

{% hint style="danger" %}
`sourceDataUrl` odkaz je přístupný pouze **60 s.**
{% endhint %}

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

```bash
curl '<sourceDataUrl>' --compressed >> '<local_filepath>'
```

{% endcode %}


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