def user(username):
tuser = current_user
trips = db.session.query(Tracks).join(Trips).join(User).filter(
User.id == current_user.get_id()).with_entities(
Trips.id, Trips.time, Tracks.objtype, Tracks.rutenavn,
func.ST_AsGeoJSON(Tracks.geog)).all()
return render_template('user.html', user=tuser, trips=trips)
def list_tiles_cube(cls, cube_id: int, only_ids=False):
"""Retrieve all tiles (as GeoJSON) that belongs to a data cube."""
features = db.session.query(
Item.tile_id,
Tile,
func.ST_AsGeoJSON(Item.geom, 6, 3).cast(sqlalchemy.JSON).label('geom')
).distinct(Item.tile_id).filter(Item.collection_id == cube_id, Item.tile_id == Tile.id).all()
return [feature.Tile.name if only_ids else feature.geom for feature in features], 200
def winter():
query = db.session.query(Tracks.lokalid, Tracks.rutenavn, Tracks.objtype,
func.ST_AsGeoJSON(Tracks.geog)).filter(
Tracks.objtype != 'Fotrute').all()
res = FeatureCollection([])
for i, q in enumerate(query):
new = Feature(properties={
"LOKALID": q[0],
"RUTENAVN": q[1],
"OBJTYPE": q[2]
},
geometry=loads(q[3]))
res['features'].append(new)
return jsonify(res)
def get_user_trips():
query = db.session.query(Tracks).join(Trips).join(User).filter(
User.id == current_user.get_id()).with_entities(
Tracks.lokalid, Tracks.rutenavn, Tracks.objtype,
func.ST_AsGeoJSON(Tracks.geog)).all()
res = FeatureCollection([])
for i, q in enumerate(query):
new = Feature(properties={
"LOKALID": q[0],
"RUTENAVN": q[1],
"OBJTYPE": q[2]
},
geometry=loads(q[3]))
res['features'].append(new)
return jsonify(res)
def get_grs_schema(self, grs_id):
"""Retrieve a Grid Schema definition with tiles associated."""
schema = GridRefSys.query().filter(GridRefSys.id == grs_id).first()
if schema is None:
return 'GRS {} not found.'.format(grs_id), 404
geom_table = schema.geom_table
tiles = db.session.query(
geom_table.c.tile,
func.ST_AsGeoJSON(func.ST_Transform(geom_table.c.geom, 4326), 6, 3).cast(sqlalchemy.JSON).label('geom_wgs84')
).all()
dump_grs = Serializer.serialize(schema)
dump_grs['tiles'] = [dict(id=t.tile, geom_wgs84=t.geom_wgs84) for t in tiles]
return dump_grs, 200
def get_grs_schema(cls,
grs_id,
bbox: Tuple[float, float, float, float] = None,
tiles=None):
"""Retrieve a Grid Schema definition with tiles associated."""
schema: GridRefSys = GridRefSys.query().filter(
GridRefSys.id == grs_id).first()
if schema is None:
return 'GRS {} not found.'.format(grs_id), 404
geom_table = schema.geom_table
srid_column = get_srid_column(geom_table.c, default_srid=4326)
where = []
if bbox is not None:
x_min, y_min, x_max, y_max = bbox
where.append(
func.ST_Intersects(
func.ST_MakeEnvelope(x_min, y_min, x_max, y_max, 4326),
func.ST_Transform(
func.ST_SetSRID(geom_table.c.geom, srid_column),
4326)))
if tiles:
where.append(geom_table.c.tile.in_(tiles))
tiles = db.session.query(
geom_table.c.tile,
func.ST_AsGeoJSON(
func.ST_Transform(
func.ST_SetSRID(geom_table.c.geom, srid_column), 4326), 6,
3).cast(
sqlalchemy.JSON).label('geom_wgs84')).filter(*where).all()
dump_grs = Serializer.serialize(schema)
dump_grs['tiles'] = [
dict(id=t.tile, geom_wgs84=t.geom_wgs84) for t in tiles
]
return dump_grs, 200
