fHtmEq(ra,dec) returns the 20-deep HtmID of the given equatorial point.
There are no error cases. all RA, folded to [0..360] and dec to [-90...90]

Namespace: Spherical.Htm
Assembly: SphericalHtm (in SphericalHtm.dll) Version: 1.0.0.0

Syntax

C#
public static long fHtmEq(
	double ra,
	double dec
)
Visual C++
public:
static long long fHtmEq(
	double ra, 
	double dec
)
F#
static member fHtmEq : 
        ra:float * 
        dec:float -> int64

Parameters

ra
Type: System..::..Double
double, right ascencion coordinate (degrees)
dec
Type: System..::..Double
double, declination coordinate (degrees)

Return Value

HtmID: Int64 20-deep HTM id of the point

Examples

CopyC#
create function fHtmEq(@ra float, @dec float ) 
        returns bigint 
        as external name HTM.Sql.fHtmEq
declare @HtmID bigint
select @HtmID = dbo.fHtmEq(195,5) --

See Also