from struct import unpack
from binascii import unhexlify
-import sqlalchemy as sa
-
from nominatim.errors import UsageError
# pylint: disable=no-member,too-many-boolean-expressions,too-many-instance-attributes
if isinstance(wkb, str):
wkb = unhexlify(wkb)
if len(wkb) != 25:
- raise ValueError("Point wkb has unexpected length")
+ raise ValueError(f"Point wkb has unexpected length {len(wkb)}")
if wkb[0] == 0:
gtype, srid, x, y = unpack('>iidd', wkb[1:])
elif wkb[0] == 1:
return Point(x, y)
- def sql_value(self) -> str:
- """ Create an SQL expression for the point.
+ def to_wkt(self) -> str:
+ """ Return the WKT representation of the point.
"""
return f'POINT({self.x} {self.y})'
return (self.coords[2] - self.coords[0]) * (self.coords[3] - self.coords[1])
- def sql_value(self) -> Any:
- """ Create an SQL expression for the box.
- """
- return sa.func.ST_MakeEnvelope(*self.coords, 4326)
-
-
def contains(self, pt: Point) -> bool:
""" Check if the point is inside or on the boundary of the box.
"""
and self.coords[2] >= pt[0] and self.coords[3] >= pt[1]
+ def to_wkt(self) -> str:
+ """ Return the WKT representation of the Bbox. This
+ is a simple polygon with four points.
+ """
+ return 'POLYGON(({0} {1},{0} {3},{2} {3},{2} {1},{0} {1}))'\
+ .format(*self.coords) # pylint: disable=consider-using-f-string
+
+
@staticmethod
def from_wkb(wkb: Union[None, str, bytes]) -> 'Optional[Bbox]':
""" Create a Bbox from a bounding box polygon as returned by
""" Restrict search to places with one of the given class/type categories.
An empty list (the default) will disable this filter.
"""
+ viewbox_x2: Optional[Bbox] = None
def __post_init__(self) -> None:
if self.viewbox is not None: