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java.lang.Object skyview.geometry.CoordinateSystem skyview.geometry.csys.JulianCoordinateSystem
public class JulianCoordinateSystem
The class defining Julian coordinate systems. The reference coordinate system is J2000.
Field Summary |
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Fields inherited from class skyview.geometry.CoordinateSystem |
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B1950, Galactic, ICRS, J2000 |
Constructor Summary | |
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JulianCoordinateSystem(double epoch)
Get a Julian CoordinateSystem of a given epoch. |
Method Summary | |
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java.lang.String |
getDescription()
Get a description of the object. |
java.lang.String |
getName()
Get the name of this object. |
Rotater |
getRotater()
Return the rotation associated with the coordinate system. |
Rotater |
precession()
Get the Julian Precession Matrix for a given epoch (from J2000). |
Methods inherited from class skyview.geometry.CoordinateSystem |
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factory, getSphereDistorter |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public JulianCoordinateSystem(double epoch)
epoch
- The epoch of the equinox of the coordinates in calendar
years (possibly fractional).Method Detail |
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public java.lang.String getName()
getName
in interface Component
public java.lang.String getDescription()
getDescription
in interface Component
public Rotater getRotater()
getRotater
in class CoordinateSystem
public Rotater precession()
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