public interface HealpixImpl
Modifier and Type | Method and Description |
---|---|
long |
ang2pix(int order,
double lon,
double lat)
Provide the HEALPix number associated to a coord, for a given order
|
double[] |
pix2ang(int order,
long npix)
Provide the galactic coord associated to an HEALPix number, for a given order
|
long[] |
queryDisc(int order,
double lon,
double lat,
double radius)
Provide the list of HEALPix numbers fully covering a circle (for a specified order)
|
long ang2pix(int order, double lon, double lat) throws Exception
order
- HEALPix order [0..MAXORDER]lon
- longitude (expressed in the Healpix frame)lat
- latitude (expressed in the Healpix frame)Exception
double[] pix2ang(int order, long npix) throws Exception
order
- HEALPix order [0..MAXORDER]npix
- HEALPix numberException
long[] queryDisc(int order, double lon, double lat, double radius) throws Exception
order
- Healpix orderlon
- center longitude (expressed in the Healpix frame)lat
- center latitude (expressed in the Healpix frame)radius
- circle radius (in degrees)Exception