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Bbox fix--unscale OSM lat/long values #52

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Merged
jeffmaki merged 1 commit into from
Jul 9, 2026
Merged

Bbox fix--unscale OSM lat/long values #52

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8 changes: 6 additions & 2 deletions api/src/osm/repository.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,12 @@ async def getWorkspaceBBox(
text(f"SET search_path TO 'workspace-{int(workspace_id)}', public")
)

sql_query = text("select MAX(latitude) AS max_lat, MAX(longitude) AS max_lon, \
MIN(latitude) AS min_lat, MIN(longitude) AS min_lon from nodes")
# OSM stores node latitude/longitude as integers scaled by 1e7
# (100-nanodegree units), so divide by 1e7 to return decimal degrees.
sql_query = text(
"select MAX(latitude) / 1e7 AS max_lat, MAX(longitude) / 1e7 AS max_lon, \
MIN(latitude) / 1e7 AS min_lat, MIN(longitude) / 1e7 AS min_lon from nodes"
)

result = await self.session.execute(sql_query)
retVal = result.mappings().first()
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