Class HealpixSys
java.lang.Object
uk.ac.starlink.ttools.plot2.layer.HealpixSys
Maps between plotting (
SkySys
)
and Healpix (HealpixTableInfo.HpxCoordSys
)
coordinate system identifiers.- Since:
- 10 Dec 2018
- Author:
- Mark Taylor
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic uk.ac.starlink.table.HealpixTableInfo.HpxCoordSys
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.
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Constructor Details
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HealpixSys
public HealpixSys()
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Method Details
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toGeom
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
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fromGeom
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
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