Python Coordinate Tools.

coordinate_tools.py

def standardize_longitude(longitude):
    while longitude < -180:
        longitude += 360
    while longitude > 180:
        longitude -= 360
    return longitude


def standardize_latitude(latitude):
    while latitude < -90:
        latitude += 180
    while latitude > 90:
        latitude -= 180
    return latitude

def crosses_prime_meridian(lon2, lon1):
    if abs(lon1 - lon2) > 180:
        return False
    else:
        return (lon1 < 0 and lon2 > 0) or (lon1 > 0 and lon2 < 0)

def crosses_idl(longitude1, longitude2):
    """
    This function checks if a path from longitude1 to longitude2 crosses the International Date Line.
    Args:
    longitude1 (float): The longitude of the first point.
    longitude2 (float): The longitude of the second point.
    Returns:
    bool: True if the path crosses the International Date Line, False otherwise.
    """
    # If the absolute difference between the two longitudes is greater than 180,
    # it means the shortest path crosses the International Date Line.
    return abs(longitude1 - longitude2) > 180

# Test the function with your example
# print(crosses_idl(176.10410748771642, -175.78437775630897))  # Output: True


# print(crosses_prime_meridian(176.10410748771642,-175.78437775630897 ))