bgc_data_processing.utils.convert_polygons

Functions to convert a shaeply Polygon to list of nodes.

polygon_to_list(polygon)

Convert polygon from shapely to list of coordinates.

Parameters:

Name	Type	Description	Default
polygon	Polygon	Polygon to convert.	required

Returns:

Type	Description
Tuple[list, list]	List of longitude values, list of latitude values.

Source code in src/bgc_data_processing/utils/convert_polygons.py

def polygon_to_list(polygon: "Polygon") -> tuple[list, list]:
    """Convert polygon from shapely to list of coordinates.

    Parameters
    ----------
    polygon : Polygon
        Polygon to convert.

    Returns
    -------
    Tuple[list, list]
        List of longitude values, list of latitude values.
    """
    x_raw, y_raw = polygon.exterior.coords.xy
    x = list(x_raw)
    y = list(y_raw)
    return x, y