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| author | Mattias Andrée <maandree@operamail.com> | 2014-06-05 02:25:34 +0200 |
|---|---|---|
| committer | Mattias Andrée <maandree@operamail.com> | 2014-06-05 02:25:34 +0200 |
| commit | 2dfb4fbbcb4251a3329c1ad46da4b39a30e059c7 (patch) | |
| tree | 294e7d2e8cf20dfe9385b105e226c6a277390d08 /src/solar.py | |
| parent | m (diff) | |
| download | blueshift-2dfb4fbbcb4251a3329c1ad46da4b39a30e059c7.tar.gz blueshift-2dfb4fbbcb4251a3329c1ad46da4b39a30e059c7.tar.bz2 blueshift-2dfb4fbbcb4251a3329c1ad46da4b39a30e059c7.tar.xz | |
fix have_sunrise_and_sunset
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'src/solar.py')
| -rw-r--r-- | src/solar.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/solar.py b/src/solar.py index 47fd5be..03cb7ce 100644 --- a/src/solar.py +++ b/src/solar.py @@ -437,12 +437,15 @@ def solar_elevation(latitude, longitude, t = None): return degrees(rc) -# TODO test, document and demo +# TODO document and demo def have_sunrise_and_sunset(latitude, t = None): t = julian_centuries() if t is None else t d = degrees(solar_declination(t)) - latitude = abs(latitude) - return (-90 + d < latitude < 90 - d) or (-90 - d < latitude < 90 + d) + latitude = abs(latitude) ## Covert everything to the Northern hemisphere + if d >= 0: + return -90 + d < latitude < 90 - d ## Northern summer + else: + return -90 - d < latitude < 90 + d ## Northern winter def future_past_elevation(delta, latitude, longitude, elevation, t = None): |