def time_window(self):
page = self.datepicker_page
start = jsdt.datetime_to_js(
datetime.datetime.strptime(
self.request.session[page]['datepicker']['start'], '%d-%m-%Y'))
end = jsdt.datetime_to_js(
datetime.datetime.strptime(
self.request.session[page]['datepicker']['end'], '%d-%m-%Y'))
return {'start': start, 'end': end}
def time_window(self):
start = jsdt.datetime_to_js(dt.datetime.strptime(
self.request.session['startpage']['datepicker']['start'], '%d-%m-%Y'
))
end = jsdt.datetime_to_js(dt.datetime.strptime(
self.request.session['startpage']['datepicker']['end'], '%d-%m-%Y'
))
return {
'start': start,
'end': end
}
def series_to_js(self, npseries, index, key, color='#2980b9', dates=True):
values = [{'x': jsdt.datetime_to_js(index[i]) if dates else i,
'y': float(value)}
for i, value in enumerate(npseries)]
return {
'values': values,
'key': key,
'color': color
}
def series_to_js(self, npseries, index, key, color='#2980b9', dates=True):
try:
values = [{
'x':
jsdt.datetime_to_js(index[i]) if dates else float(index[i]),
'y':
float(value)
} for i, value in enumerate(npseries)]
except IndexError:
values = [{
'x': i,
'y': float(value)
} for i, value in enumerate(npseries)]
return {'values': values, 'key': key, 'color': color}
def bbox(self,
south_west,
north_east,
statistic=None,
start='0001-01-01T00:00:00Z',
end=None,
organisation=None):
"""
Find all timeseries within a certain bounding box.
Returns records within bounding box using Bounding Box format (min Lon,
min Lat, max Lon, max Lat). Also returns features with overlapping
geometry.
:param south_west: lattitude and longtitude of the south-western point
:param north_east: lattitude and longtitude of the north-eastern point
:param start_: start timestamp in ISO 8601 format
:param end: end timestamp in ISO 8601 format
:return: a dictionary of the api-response.
"""
if not end:
end = jsdatetime.now_iso()
if isinstance(start, int):
start -= 10000
if isinstance(end, int):
end += 10000
min_lat, min_lon = south_west
max_lat, max_lon = north_east
polygon_coordinates = [
[min_lon, min_lat],
[min_lon, max_lat],
[max_lon, max_lat],
[max_lon, min_lat],
[min_lon, min_lat],
]
points = [' '.join([str(x), str(y)]) for x, y in polygon_coordinates]
geom_within = {'a': 'POLYGON ((' + ', '.join(points) + '))'}
geom_within = urllib.parse.urlencode(geom_within).split('=')[1]
org_query = self.organisation_query(organisation)
self.statistic = statistic
if statistic == 'mean':
statistic = ['count', 'sum']
elif not statistic:
statistic = ['min', 'max', 'count', 'sum']
self.statistic = None
elif statistic == 'range (max - min)':
statistic = ['min', 'max']
elif statistic == 'difference (last - first)':
statistic = 'count'
elif statistic == 'difference (mean last - first year)':
year = dt.timedelta(days=366)
first_end = jsdatetime.datetime_to_js(
jsdatetime.js_to_datetime(start) + year)
last_start = jsdatetime.datetime_to_js(
jsdatetime.js_to_datetime(end) - year)
self.get(start=start,
end=first_end,
min_points=1,
fields=['count', 'sum'],
location__geom_within=geom_within,
**org_query)
first_year = {}
for r in self.results:
try:
first_year[r['location']['uuid']] = {
'first_value_timestamp': r['first_value_timestamp'],
'mean': r['events'][0]['sum'] / r['events'][0]['count']
}
except IndexError:
first_year[r['location']['uuid']] = {
'first_value_timestamp': np.nan,
'mean': np.nan
}
self.results = []
self.get(start=last_start,
end=end,
min_points=1,
fields=['count', 'sum'],
location__geom_within=geom_within,
**org_query)
for r in self.results:
try:
r['events'][0]['difference (mean last - first year)'] = \
r['events'][0]['sum'] / r['events'][0]['count'] - \
first_year[r['location']['uuid']]['mean']
r['first_value_timestamp'] = \
first_year[
r['location']['uuid']]['first_value_timestamp']
except IndexError:
r['events'] = [{
'difference (mean last - first year)':
np.nan
}]
r['first_value_timestamp'] = np.nan
r['last_value_timestamp'] = np.nan
return
self.get(start=start,
end=end,
min_points=1,
fields=statistic,
location__geom_within=geom_within,
**org_query)
