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public interface SkyTiling
Defines a pixellation scheme which maps sky positions to long integers.
Method Summary | |
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long |
getPositionTile(double ra,
double dec)
Returns the index of the tile in which a given sky position falls. |
long[] |
getTileRange(double ra,
double dec,
double radius)
Returns the bounds of a range of pixels which is known to cover a given cone on the sky. |
Method Detail |
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long getPositionTile(double ra, double dec)
ra
- right ascension in degreesdec
- declination in degrees
long[] getTileRange(double ra, double dec, double radius)
null
may be returned.
ra
- right ascension in degreesdec
- declination in degreesradius
- radius in degrees
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