Fix aurora sensor not converting latitude and longitude correctly (#28643)

This commit is contained in:
Watchfox 2020-01-09 08:40:10 +01:00 committed by Martin Hjelmare
parent 260596d11b
commit 6b7be35f4a
3 changed files with 262 additions and 242 deletions

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@ -1,5 +1,6 @@
"""Support for aurora forecast data sensor."""
from datetime import timedelta
from math import floor
import logging
from aiohttp.hdrs import USER_AGENT
@ -99,8 +100,6 @@ class AuroraData:
"""Initialize the data object."""
self.latitude = latitude
self.longitude = longitude
self.number_of_latitude_intervals = 513
self.number_of_longitude_intervals = 1024
self.headers = {USER_AGENT: HA_USER_AGENT}
self.threshold = int(threshold)
self.is_visible = None
@ -126,18 +125,22 @@ class AuroraData:
def get_aurora_forecast(self):
"""Get forecast data and parse for given long/lat."""
raw_data = requests.get(URL, headers=self.headers, timeout=5).text
# We discard comment rows (#)
# We split the raw text by line (\n)
# For each line we trim leading spaces and split by spaces
forecast_table = [
row.strip(" ").split(" ")
row.strip().split()
for row in raw_data.split("\n")
if not row.startswith("#")
]
# Convert lat and long for data points in table
converted_latitude = round(
(self.latitude / 180) * self.number_of_latitude_intervals
)
converted_longitude = round(
(self.longitude / 360) * self.number_of_longitude_intervals
# Assumes self.latitude belongs to [-90;90[ (South to North)
# Assumes self.longitude belongs to [-180;180[ (West to East)
# No assumptions made regarding the number of rows and columns
converted_latitude = floor((self.latitude + 90) * len(forecast_table) / 180)
converted_longitude = floor(
(self.longitude + 180) * len(forecast_table[converted_latitude]) / 360
)
return forecast_table[converted_latitude][converted_longitude]

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@ -74,11 +74,11 @@ class TestAuroraSensorSetUp(unittest.TestCase):
entities.append(entity)
config = {"name": "Test", "forecast_threshold": 1}
self.hass.config.longitude = 5
self.hass.config.latitude = 5
self.hass.config.longitude = 18.987
self.hass.config.latitude = 69.648
aurora.setup_platform(self.hass, config, mock_add_entities)
aurora_component = entities[0]
assert aurora_component.aurora_data.visibility_level == "5"
assert aurora_component.aurora_data.visibility_level == "16"
assert aurora_component.is_on

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@ -1,114 +1,149 @@
#Aurora Specification Tabular Values
# Product: Ovation Aurora Short Term Forecast <path to tabular data>
# Product Valid At: 2019-11-08 18:55
# Product Generated At: 2019-11-08 18:25
#
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center.
# Please send comments and suggestions to SWPC.Webmaster@noaa.gov
#
# Missing Data: (n/a)
# Cadence: 5 minutes
#
# Tabular Data is on the following grid
#
# 1024 values covering 0 to 360 degrees in the horizontal (longitude) direction (0.32846715 degrees/value)
# 512 values covering -90 to 90 degrees in the vertical (latitude) direction (0.3515625 degrees/value)
# Values range from 0 (little or no probability of visible aurora) to 100 (high probability of visible aurora)
#
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