> 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/ru/dokumentaciya-api/obzor-zaprosov-api-geopard/48.-zapros-poluchit-dannye-po-setke-iz-topographymap.md).

# 48. Запрос: получить данные по сетке из "TopographyMap"

Запрос для получения исходных данных из растрового набора данных, связанного с "TopographyMap", как `GEOJSON`  с точками или `GEOTIFF`. Атрибут properties содержит все топографические производные (например, дигиталную модель рельефа, крутизну склона, участок рельефа, шероховатость, экспозицию склонов, теневую карту и т.д.) для каждой точки. 

#### 1. Запросить файл для экспорта

{% hint style="danger" %}
Рекомендуется извлекать только один набор данных с `sourceDataUrl` за запрос. 
{% endhint %}

`NoBuffer`, `PlusOnePixel`, `PlusTwoPixels`, `MinusOnePixel`, и `MinusTwoPixels` доступны как `буфер`.

`GEOJSON` и `GEOTIFF` доступны в качестве формата. 

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

```graphql
query GetGriddedDataFromTopographyMap {
  getFarms (farmUuids: ["<placeholder_of_farm_uuid>"]){
    uuid
    fields (fieldUuids: ["<placeholder_of_field_uuid>"]) {
      uuid
      topographyMaps(topographyMapUuids: ["<placeholder_of_topography_uuid>"]) {
        uuid
        sourceDataUrl(format: GEOJSON buffer: PlusTwoPixels)
      }
    }
  }
}
```

{% endcode %}

#### 2. Скачать сгенерированный файл

После успешной подготовки файла его можно скачать, используя `curl` или аналогичный подход.

{% hint style="danger" %}
`sourceDataUrl` ссылка доступна только в течение **60 сек.**
{% endhint %}

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

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

{% endcode %}


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