Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://astro.uni-altai.ru/~aw/stellarium/api/classSkybright.html
Дата изменения: Unknown Дата индексирования: Fri Feb 28 07:21:45 2014 Кодировка: Поисковые слова: massive stars |
![]() |
Stellarium 0.12.3
|
Compute the luminance of the sky according to some parameters like sun moon position or time or altitude etc... More...
#include <Skybright.hpp>
Public Member Functions | |
Skybright () | |
Constructor. More... | |
void | setDate (int year, int month, float moonPhase) |
Set the sky date to use for atmosphere computation. More... | |
void | setLocation (float latitude, float altitude, float temperature=15.f, float relativeHumidity=40.f) |
Set the position parameters to use for atmosphere computation. More... | |
void | setSunMoon (float cosDistMoonZenith, float cosDistSunZenith) |
Set the moon and sun zenith angular distance (cosin given) and precompute what can be This function has to be called once before any call to getLuminance() More... | |
float | getLuminance (float cosDistMoon, float cosDistSun, float cosDistZenith) const |
Compute the luminance at the given position. More... | |
Compute the luminance of the sky according to some parameters like sun moon position or time or altitude etc...
Definition at line 25 of file Skybright.hpp.
Skybright::Skybright | ( | ) |
Constructor.
float Skybright::getLuminance | ( | float | cosDistMoon, |
float | cosDistSun, | ||
float | cosDistZenith | ||
) | const |
Compute the luminance at the given position.
cosDistMoon | cos(angular distance between moon and the position) |
cosDistSun | cos(angular distance between sun and the position) |
cosDistZenith | cos(angular distance between zenith and the position) |
void Skybright::setDate | ( | int | year, |
int | month, | ||
float | moonPhase | ||
) |
Set the sky date to use for atmosphere computation.
year | the year in YYYY format |
month | the month: 1=Jan, 12=Dec |
moonPhase | the moon phase in radian 0=Full Moon, PI/2=First Quadrant/Last Quadran, PI=No Moon |
void Skybright::setLocation | ( | float | latitude, |
float | altitude, | ||
float | temperature = 15.f , |
||
float | relativeHumidity = 40.f |
||
) |
Set the position parameters to use for atmosphere computation.
latitude | observer latitude in radian |
altitude | observer altitude in m |
temperature | temperature in deg. C |
relativeHumidity | air humidity in % |
void Skybright::setSunMoon | ( | float | cosDistMoonZenith, |
float | cosDistSunZenith | ||
) |
Set the moon and sun zenith angular distance (cosin given) and precompute what can be This function has to be called once before any call to getLuminance()
cosDistMoonZenith | cos(angular distance between moon and zenith) |
cosDistSunZenith | cos(angular distance between sun and zenith) |