def setUp(self):
"Clear tables"
# Logout
self.app.get(url("person_logout"))
# Delete all people
Session.rollback()
Session.query(model.Person).delete()
Session.query(model.PersonCandidate).delete()
Session.commit()
def setUp(self):
'Clear tables'
# Logout
self.app.get(url('person_logout'))
# Delete all people
Session.rollback()
Session.query(model.Person).delete()
Session.query(model.PersonCandidate).delete()
Session.commit()
if simplified:
# If a bounding box is specified,
if bbox:
# Convert bounding box to a metric coordinate system
try:
multiPoint = shapely.wkb.loads(
str(
Session.execute(
geoalchemy.functions.wkb(
geoalchemy.functions.transform(
geoalchemy.WKTSpatialElement(
'MULTIPOINT(%s %s, %s %s)' %
(minY, minX, maxY, maxX),
srid), 3857))).fetchone()[0]))
except sa.exc.InternalError:
Session.rollback()
y1, x1, y2, x2 = -20037508.34, -20037508.34, 20037508.34, 20037508.34
else:
y1, x1 = multiPoint.geoms[0].coords[0]
y2, x2 = multiPoint.geoms[1].coords[0]
metersPerPixel = min(abs(x2 - x1), abs(y2 - y1)) / 256.
# If a bounding box is not specified,
else:
metersPerPixel = 0.2
# Define transformation in a metric coordinate system
simplify = lambda x: sa.func.ST_SimplifyPreserveTopology(
geoalchemy.functions.transform(x, 3857), metersPerPixel)
# If simplification is not desired,
else:
simplify = lambda x: x
# Prepare query
restrict = lambda x: x
# Load simplified
simplified = request.params.get('simplified', 1)
try:
simplified = int(simplified)
except ValueError:
abort(400, 'Could not parse simplified=%s as an integer' % simplified)
# If simplification is desired,
if simplified:
# If a bounding box is specified,
if bbox:
# Convert bounding box to a metric coordinate system
try:
multiPoint = shapely.wkb.loads(str(Session.execute(geoalchemy.functions.wkb(geoalchemy.functions.transform(geoalchemy.WKTSpatialElement('MULTIPOINT(%s %s, %s %s)' % (minY, minX, maxY, maxX), srid), 3857))).fetchone()[0]))
except sa.exc.InternalError:
Session.rollback()
y1, x1, y2, x2 = -20037508.34, -20037508.34, 20037508.34, 20037508.34
else:
y1, x1 = multiPoint.geoms[0].coords[0]
y2, x2 = multiPoint.geoms[1].coords[0]
metersPerPixel = min(abs(x2 - x1), abs(y2 - y1)) / 256.
# If a bounding box is not specified,
else:
metersPerPixel = 0.2
# Define transformation in a metric coordinate system
simplify = lambda x: sa.func.ST_SimplifyPreserveTopology(geoalchemy.functions.transform(x, 3857), metersPerPixel)
# If simplification is not desired,
else:
simplify = lambda x: x
# Prepare query
featureQuery = restrict(Session.query(model.Feature.id, geoalchemy.functions.wkb(geoalchemy.functions.transform(simplify(model.Feature.geometry), srid)), model.Feature.properties).join(model.Feature.tags).filter(model.Tag.id.in_([x.id for x in tags])).filter(model.getFeatureFilter(personID)))
