healpixNestLon( k, index )
Note: the index
parameter is 0-based,
unlike the table row index special token $index
(a.k.a. $0
), which is 1-based.
So if the HEALpix index is implicitly determined by the table row,
the value $index-1
should be used.
k
(integer)index
(long integer)double healpixNestLon(int, long)