def test_exif(self):
"""Read exif data from a known test image."""
filename = resource_filename(
"lizard_progress", "/testdata/IMG_0366.JPG")
image = Image.open(filename)
exif_data = get_exif_data(image)
lat, lon = get_lat_lon(exif_data)
self.assertEquals(lat, 52.08)
self.assertEquals(lon, 5.011166666666667)
def parse(self, check_only=False):
if not isinstance(self.file_object, ImageFile):
return UnSuccessfulParserResult()
try:
measurement_type = MeasurementType.objects.get(project=self.project, mtype__slug="foto")
except MeasurementType.DoesNotExist:
return self.error("no_mtype")
# Uniek_id: Part of the filename before the extension, in
# upper case.
uniek_id = os.path.splitext(self.file_object.name)[0].upper()
try:
location = Location.objects.get(location_code=uniek_id, project=self.project)
except Location.DoesNotExist:
return self.error(uniek_id)
exif_data = get_exif_data(self.file_object)
lat, lon = get_lat_lon(exif_data)
if not lat or not lon:
return self.error("gps")
x, y = wgs84_to_rd(lon, lat)
x0, y0 = location.the_geom.x, location.the_geom.y
d = sqrt((x - x0) ** 2 + (y - y0) ** 2)
if d > 75.0:
return self.error("toofar", d)
try:
scheduled_measurement = ScheduledMeasurement.objects.get(
project=self.project, contractor=self.contractor, location=location, measurement_type=measurement_type
)
except ScheduledMeasurement.DoesNotExist:
return self.error("scheduled", id, str(measurement_type))
if not check_only:
m, _ = Measurement.objects.get_or_create(scheduled=scheduled_measurement)
m.data = {}
m.date = None
m.the_geom = Point(x, y, srid=SRID)
m.save()
scheduled_measurement.complete = True
scheduled_measurement.save()
measurements = (m,)
else:
measurements = ()
return SuccessfulParserResult(measurements)
def parse(self, check_only=False):
if not isinstance(self.file_object, ImageFile):
return UnSuccessfulParserResult()
try:
measurement_type = MeasurementType.objects.get(
project=self.project,
mtype__slug='oeverfoto')
except MeasurementType.DoesNotExist:
return self.error('no_mtype')
# Filename is of the format "ID_L" or "ID_R", possibly in
# mixed case. Since IDs are upper case, we change the filename
# to upper case first.
filename_no_suffix = os.path.splitext(self.file_object.name)[0].upper()
is_left = filename_no_suffix.endswith('_L')
is_right = filename_no_suffix.endswith('_R')
if not (is_left or is_right):
return self.error('notleftright')
uniek_id = filename_no_suffix[:-2]
try:
location = Location.objects.get(
location_code=uniek_id,
project=self.project)
except Location.DoesNotExist:
return self.error('nolocation', uniek_id)
exif_data = get_exif_data(self.file_object)
lat, lon = get_lat_lon(exif_data)
if not lat or not lon:
return self.error('gps')
x, y = wgs84_to_rd(lon, lat)
x0, y0 = location.the_geom.x, location.the_geom.y
d = sqrt((x - x0) ** 2 + (y - y0) ** 2)
if d > 75.0:
return self.error('toofar', d)
try:
scheduled_measurement = (ScheduledMeasurement.objects.
get(project=self.project,
contractor=self.contractor,
location=location,
measurement_type=measurement_type))
except ScheduledMeasurement.DoesNotExist:
return self.error('notscheduled', id, str(measurement_type))
# Several measurements per scheduled measurement, find if ours exists
# The measurements store 'left' or 'right' in the data field.
data_field = 'left' if is_left else 'right'
if not check_only:
measurements = {}
for m in scheduled_measurement.measurement_set.all():
measurements[m.data] = m
if data_field in measurements:
measurement = measurements[data_field]
else:
# New
measurement = Measurement(
scheduled=scheduled_measurement, data=data_field)
measurements[data_field] = measurement
measurement.date = None
measurement.the_geom = Point(x, y, srid=SRID)
measurement.save()
if 'left' in measurements and 'right' in measurements:
scheduled_measurement.complete = True
scheduled_measurement.save()
return self.success((measurement,))
else:
return self.success(())
