HealpixTiling
public interface SkyTiling
Modifier and Type | Method | Description |
---|---|---|
uk.ac.starlink.table.ValueInfo |
getIndexInfo() |
Returns a metadata item suitable for describing the pixel index
used by this tiling.
|
long |
getPixelCount() |
Returns the total number of tiles in this tiling.
|
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.
|
long getPositionTile(double ra, double dec)
ra
- right ascension in degreesdec
- declination in degreeslong[] getTileRange(double ra, double dec, double radius)
null
may be returned.ra
- right ascension in degreesdec
- declination in degreesradius
- radius in degreeslong getPixelCount()
uk.ac.starlink.table.ValueInfo getIndexInfo()
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