Class HealpixSys

java.lang.Object
uk.ac.starlink.ttools.plot2.layer.HealpixSys

public class HealpixSys extends Object
Maps between plotting (SkySys) and Healpix (HealpixTableInfo.HpxCoordSys) coordinate system identifiers.
Since:
10 Dec 2018
Author:
Mark Taylor
  • Constructor Summary

    Constructors
    Constructor
    Description
     
  • Method Summary

    Modifier and Type
    Method
    Description
    static uk.ac.starlink.table.HealpixTableInfo.HpxCoordSys
    fromGeom(SkySys skySys)
    Returns the Healpix sky coordinate system corresponding to a plotting sky coordinate system.
    static SkySys
    toGeom(uk.ac.starlink.table.HealpixTableInfo.HpxCoordSys csys)
    Returns the plotting sky coordinate system corresponding to a Healpix sky coordinate system.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Constructor Details

    • HealpixSys

      public HealpixSys()
  • Method Details

    • toGeom

      public static SkySys toGeom(uk.ac.starlink.table.HealpixTableInfo.HpxCoordSys csys)
      Returns the plotting sky coordinate system corresponding to a Healpix sky coordinate system. Best efforts.
      Parameters:
      csys - healpix sky coordinate system identifier
      Returns:
      corresponding plotting sky system, or null if no correspondence is known
    • fromGeom

      public static uk.ac.starlink.table.HealpixTableInfo.HpxCoordSys fromGeom(SkySys skySys)
      Returns the Healpix sky coordinate system corresponding to a plotting sky coordinate system. Best efforts.
      Parameters:
      skySys - plotting sky coordinate system identifier
      Returns:
      corresponding healpix system, or null if no correspondence is known