FUNCTION
fGetLon
Converts a 3-vector to longitude (Galactic or Survey)
@mode can be one of the following:
J2S for Survey coordinates,
J2G for Galactic coordinates, e.g.,
select top 10 dbo.fGetLon('J2S',cx,cy,cz) from PhotoTag
Use fGetLat to get latitude.
Input and output parameters
name
type
length
inout
pnum
@mode
varchar
8
input
1
@cx
float
8
input
2
@cy
float
8
input
3
@cz
float
8
input
4
float
8
output
0