uk.ac.starlink.ttools.cone

Class CdsHealpix

java.lang.Object

uk.ac.starlink.ttools.cone.CdsHealpix

All Implemented Interfaces:

cds.moc.HealpixImpl

public class CdsHealpix
extends Object
implements cds.moc.HealpixImpl

Healpix implementation for use with the MOC library based on F-X Pineau's cds-healpix-java library.

Use getInstance() to obtain the singleton instance of this class.

Since:

21 May 2020

Author:

Mark Taylor

See Also:

https://github.com/cds-astro/cds-healpix-java

Method Summary

Modifier and Type	Method and Description
long	ang2pix(int order, double lonDeg, double latDeg)
static CdsHealpix	getInstance() Returns the sole instance of this class.
double[]	pix2ang(int order, long ipix)
long[]	queryDisc(int order, double lonDeg, double latDeg, double radiusDeg)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

ang2pix

public long ang2pix(int order,
                    double lonDeg,
                    double latDeg)

Specified by:

ang2pix in interface cds.moc.HealpixImpl

pix2ang

public double[] pix2ang(int order,
                        long ipix)

Specified by:

pix2ang in interface cds.moc.HealpixImpl

queryDisc

public long[] queryDisc(int order,
                        double lonDeg,
                        double latDeg,
                        double radiusDeg)

Specified by:

queryDisc in interface cds.moc.HealpixImpl

getInstance

public static CdsHealpix getInstance()

Returns the sole instance of this class.

Returns:

singleton instance