uk.ac.starlink.ttools.plot2.geom

Class SkyFov

java.lang.Object

uk.ac.starlink.ttools.plot2.geom.SkyFov

public class SkyFov
extends Object

Characterises a field of view on the sky for presentation to the user. The values in degrees should be rounded in decimal to a level of precision suitable for presentation to the user, given the pixel precision of the known plotting surface. The values are therefore approximate, and may in any case be rather rough depending on the geometry involved (which may not lend itself to description as a cone).

Since:

25 Jul 2017

Author:

Mark Taylor

Constructor Summary

Constructors

Constructor and Description
SkyFov(double lonDeg, double latDeg, double radiusDeg) Constructor.

Method Summary

Modifier and Type	Method and Description
double	getLatDeg() Returns central latitude in degrees.
double	getLonDeg() Returns central longitude in degrees.
double	getRadiusDeg() Returns field of view radius in degrees.

Methods inherited from class java.lang.Object

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

Constructor Detail

SkyFov

public SkyFov(double lonDeg,
              double latDeg,
              double radiusDeg)

Constructor.

Parameters:

lonDeg - central longitude in degrees

latDeg - central latitude in degrees

radiusDeg - radius in degrees

Method Detail

getLonDeg

public double getLonDeg()

Returns central longitude in degrees.

Returns:

longitude

getLatDeg

public double getLatDeg()

Returns central latitude in degrees.

Returns:

latitude

getRadiusDeg

public double getRadiusDeg()

Returns field of view radius in degrees.

Returns:

radius