FUNCTION fHtmGetCenterPoint

Converts an HTMID to a (x,y,z) vector of the HTM centerpoint

Parameters:
@htmid bigint, the htmid of the trixel
Returns VertexTable(x float, y float, z float) of a single row with the unit vector of the trixel center. select * from fHtmToCenterPoint(dbo.fHtmXyz(.57735,.57735,.57735)) gives: 0.577350269189626, 0.577350269189626, 0.577350269189626

Input and output parameters

name type length inout pnum

@htmid bigint 8 input 1

x float 8 output 1

y float 8 output 2

z float 8 output 3

name	type	length	inout	pnum
@htmid	bigint	8	input	1
x	float	8	output	1
y	float	8	output	2
z	float	8	output	3