Use ESPG 3857 for all geometry columns

api/migrations/versions/587e69ecb466_transform_overtaking_event_geometry_to_.py

@@ -0,0 +1,30 @@
+"""transform overtaking_event geometry to 3857
+
+Revision ID: 587e69ecb466
+Revises: f4b0f460254d
+Create Date: 2023-04-01 14:30:49.927505
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "587e69ecb466"
+down_revision = "f4b0f460254d"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.execute("UPDATE overtaking_event SET geometry = ST_Transform(geometry, 3857);")
+    op.execute(
+        "ALTER TABLE overtaking_event ALTER COLUMN  eometry TYPE geometry(POINT, 3857);"
+    )
+
+
+def downgrade():
+    op.execute(
+        "ALTER TABLE overtaking_event ALTER COLUMN overtaking_event.geometry TYPE geometry;"
+    )
+    op.execute("UPDATE overtaking_event SET geometry = ST_Transform(geometry, 4326);")

api/obs/api/process.py

@@ -8,7 +8,7 @@ import pytz
 from os.path import join
 from datetime import datetime
 
-from sqlalchemy import delete, select, and_
+from sqlalchemy import delete, func, select, and_
 from sqlalchemy.orm import joinedload
 
 from obs.face.importer import ImportMeasurementsCsv
@@ -306,11 +306,16 @@ async def import_overtaking_events(session, track, overtaking_events):
             hex_hash=hex_hash,
             way_id=m.get("OSM_way_id"),
             direction_reversed=m.get("OSM_way_orientation", 0) < 0,
-            geometry=json.dumps(
-                {
-                    "type": "Point",
-                    "coordinates": [m["longitude"], m["latitude"]],
-                }
+            geometry=func.ST_Transform(
+                func.ST_GeomFromGeoJSON(
+                    json.dumps(
+                        {
+                            "type": "Point",
+                            "coordinates": [m["longitude"], m["latitude"]],
+                        }
+                    )
+                ),
+                3857,
             ),
             latitude=m["latitude"],
             longitude=m["longitude"],

api/obs/api/routes/stats.py

@@ -191,9 +191,7 @@ async def stats(req):
         .select_from(Region)
         .join(
             OvertakingEvent,
-            func.ST_Within(
-                func.ST_Transform(OvertakingEvent.geometry, 3857), Region.geometry
-            ),
+            func.ST_Within(OvertakingEvent.geometry, Region.geometry),
         )
         .group_by(
             Region.id,

tile-generator/layers/obs_events/layer.sql

@@ -3,7 +3,7 @@ RETURNS TABLE(event_id bigint, geometry geometry, distance_overtaker float, dist
 
     SELECT
       overtaking_event.id::bigint as event_id,
-      ST_Transform(overtaking_event.geometry, 3857) as geometry,
+      overtaking_event.geometry as geometry,
       distance_overtaker,
       distance_stationary,
       (case when direction_reversed then -1 else 1 end)::int as direction,
@@ -14,7 +14,7 @@ RETURNS TABLE(event_id bigint, geometry geometry, distance_overtaker float, dist
     FROM overtaking_event
     FULL OUTER JOIN road ON road.way_id = overtaking_event.way_id
     JOIN track on track.id = overtaking_event.track_id
-    WHERE ST_Transform(overtaking_event.geometry, 3857) && bbox
+    WHERE overtaking_event.geometry && bbox
       AND zoom_level >= 8
       AND (user_id is NULL OR user_id = track.author_id)
       AND time BETWEEN COALESCE(min_time, '1900-01-01'::timestamp) AND COALESCE(max_time, '2100-01-01'::timestamp);

tile-generator/layers/obs_events/obs_events.yaml

@@ -19,7 +19,7 @@ layer:
     zone: |
       rural or urban
   defaults:
-    srs: EPSG:3785
+    srs: EPSG:3857
   datasource:
     srid: 3857
     geometry_field: geometry

tile-generator/layers/obs_regions/layer.sql

@@ -16,7 +16,7 @@ RETURNS TABLE(
       region.name as name,
       count(overtaking_event.id)::int as overtaking_event_count
     FROM region
-      LEFT OUTER JOIN overtaking_event on ST_Within(ST_Transform(overtaking_event.geometry, 3857), region.geometry)
+      LEFT OUTER JOIN overtaking_event on ST_Within(overtaking_event.geometry, region.geometry)
     WHERE
       zoom_level >= 3 AND
       zoom_level <= 12 AND

tile-generator/layers/obs_regions/obs_regions.yaml

@@ -9,7 +9,7 @@ layer:
     name: |
       Name of the region
   defaults:
-    srs: EPSG:3785
+    srs: EPSG:3857
   datasource:
     srid: 3857
     geometry_field: geometry

tile-generator/layers/obs_roads/obs_roads.yaml

@@ -27,7 +27,7 @@ layer:
     offset_direction: |
       Factor for offset to shift the line to the driving side. One of -1, 0, 1.
   defaults:
-    srs: EPSG:3785
+    srs: EPSG:3857
   datasource:
     srid: 3857
     geometry_field: geometry