Buffered Geometry Area Calculation in GeoDataFrame

This function calculates the buffer area for each geometry in a GeoDataFrame and returns a new GeoDataFrame with an additional column 'buffer_area' containing the area of each buffered geometry.

Technology Stack : GeoPandas

Code Type : Custom function

Code Difficulty : Intermediate

                
                    
def calculate_buffer_area(geodataframe, buffer_distance):
    """
    This function calculates the area of the buffered geometries for each feature in the GeoDataFrame.

    Args:
    geodataframe (geopandas.GeoDataFrame): The GeoDataFrame containing the geometries.
    buffer_distance (float): The distance to buffer the geometries by.

    Returns:
    geopandas.GeoDataFrame: A GeoDataFrame with an additional column 'buffer_area' containing the area of each buffered geometry.
    """
    # Buffer the geometries and calculate the area
    geodataframe['buffer_area'] = geodataframe.geometry.buffer(buffer_distance).area
    return geodataframe