JupiterMoons
#include <jupitermoons.h>
Public Member Functions | |
JupiterMoons () | |
~JupiterMoons () override | |
void | findPosition (const KSNumbers *num, const KSPlanetBase *jup, const KSSun *sunptr) override |
Public Member Functions inherited from PlanetMoons | |
PlanetMoons ()=default | |
virtual | ~PlanetMoons () |
void | EquatorialToHorizontal (const dms *LSTh, const dms *lat) |
bool | inFront (int id) const |
TrailObject * | moon (int id) |
QString | name (int id) const |
int | nMoons () const |
double | x (int i) const |
double | y (int i) const |
double | z (int i) const |
Additional Inherited Members | |
Protected Attributes inherited from PlanetMoons | |
QVector< bool > | InFront |
QVector< TrailObject * > | Moon |
QVector< double > | XP |
QVector< double > | YP |
QVector< double > | ZP |
Detailed Description
Implements the four largest moons of Jupiter.
See Chapter 43 of "Astronomical Algorithms"by Jean Meeus for details
TODO: make the moons SkyObjects, rather than just points.
- Version
- 1.0
Definition at line 27 of file jupitermoons.h.
Constructor & Destructor Documentation
◆ JupiterMoons()
JupiterMoons::JupiterMoons | ( | ) |
Constructor.
Assign the name of each moon, and initialize their XYZ positions to zero.
Definition at line 14 of file jupitermoons.cpp.
◆ ~JupiterMoons()
|
override |
Member Function Documentation
◆ findPosition()
|
overridevirtual |
Find the positions of each Moon, relative to Jupiter.
We use an XYZ coordinate system, centered on Jupiter, where the X-axis corresponds to Jupiter's Equator, the Y-Axis is parallel to Jupiter's Poles, and the Z-axis points along the line joining the Earth and Jupiter. Once the XYZ positions are known, this function also computes the RA,Dec positions of each Moon, and sets the inFront bool variable to indicate whether the Moon is nearer to us than Jupiter or not (this information is used to determine whether the Moon should be drawn on top of Jupiter, or vice versa).
See "Astronomical Algorithms" bu Jean Meeus, Chapter 43.
- Parameters
-
num pointer to the KSNumbers object describing the date/time at which to find the positions. jup pointer to the jupiter object sunptr pointer to the Sun object
Implements PlanetMoons.
Definition at line 33 of file jupitermoons.cpp.
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