loader.grbspecificdateparcelloader – BRDR - Aligning borders

# loader.GRBSpecificDateParcelLoader

    be.grb.loader.GRBSpecificDateParcelLoader(date, aligner, partition=1000)

Loader for GRB parcel situations on a specific historical date.

This loader allows for high-precision historical reconstruction of parcel boundaries as they existed on a specific day.

.. warning:: This loader is experimental and intended for historical research. Data availability depends on the historical archives of the GRB provider.

## Parameters

Name | Type | Description | Default
--- | --- | --- | ---
date | str | The historical date in the format defined by `DATE_FORMAT`. | required
aligner | Any | The aligner object providing spatial context. | required
partition | int | Number of features per request, by default 1000. | `1000`

## Raises

Name | Type | Description
--- | --- | ---
| ValueError | - If the date format is invalid. - If the date refers to the current or a future year.

## Methods

Name | Description
--- | ---
load_data | Download and process parcel data for the specified historical date.

### load_data

    be.grb.loader.GRBSpecificDateParcelLoader.load_data()

Download and process parcel data for the specified historical date.

#### Returns

Name | Type | Description
--- | --- | ---
| Any | The result of the parent GeoJsonLoader’s load_data method.

#### Raises

Name | Type | Description
--- | --- | ---
| ValueError | If thematic data has not been loaded into the aligner.