hans/Nominatim
1
0
Fork 1
mirror of https://github.com/osm-search/Nominatim.git synced 2026-02-26 11:08:13 +00:00
Code Issues Packages Projects Releases Wiki Activity

python: implement reverse lookup function

Browse Source 
The implementation follows for most part the PHP code but introduces an
additional layer parameter with which the kind of places to be returned
can be restricted. This replaces the hard-coded exclusion lists.
This commit is contained in:
Sarah Hoffmann
2023-03-23 22:38:37 +01:00
parent 41da298b18
commit 2f54732500
10 changed files with 424 additions and 118 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
nominatim/api/types.py
View File

@@ -85,6 +85,8 @@ class Point(NamedTuple):
AnyPoint = Union[Point, Tuple[float, float]]
WKB_BBOX_HEADER_LE = b'\x01\x03\x00\x00\x20\xE6\x10\x00\x00\x01\x00\x00\x00\x05\x00\x00\x00'
WKB_BBOX_HEADER_BE = b'\x00\x20\x00\x00\x03\x00\x00\x10\xe6\x00\x00\x00\x01\x00\x00\x00\x05'
class Bbox:
""" A bounding box in WSG84 projection.
@@ -134,9 +136,9 @@ class Bbox:
if len(wkb) != 97:
raise ValueError("WKB must be a bounding box polygon")
if wkb.startswith(b'\x01\x03\x00\x00\x20\xE6\x10\x00\x00\x01\x00\x00\x00\x05\x00\x00\x00'):
if wkb.startswith(WKB_BBOX_HEADER_LE):
x1, y1, _, _, x2, y2 = unpack('<dddddd', wkb[17:65])
elif wkb.startswith(b'\x00\x20\x00\x00\x03\x00\x00\x10\xe6\x00\x00\x00\x01\x00\x00\x00\x05'):
elif wkb.startswith(WKB_BBOX_HEADER_BE):
x1, y1, _, _, x2, y2 = unpack('>dddddd', wkb[17:65])
else:
raise ValueError("WKB has wrong header")
@@ -144,6 +146,7 @@ class Bbox:
return Bbox(min(x1, x2), min(y1, y2), max(x1, x2), max(y1, y2))
@staticmethod
def from_point(pt: Point, buffer: float) -> 'Bbox':
""" Return a Bbox around the point with the buffer added to all sides.
"""