FUNCTION fHtmCoverRegion

Returns HTMID range table covering the designated region

Regions have the syntax
circleSpec => CIRCLE J2000 ra dec radArcMin
| CIRCLE CARTESIAN x y z radArcMin
rectSpec => RECT J2000 {ra dec }2
| RECT CARTESIAN {x y z }2
polySpec => POLY J2000 {ra dec }3+
| POLY CARTESIAN {x y z }3+
hullSpec => CHULL J2000 {ra dec }3+
| CHULL CARTESIAN {x y z }3+
convexSpec => CONVEX { x y z D}*
coverSpec => circleSpec | rectSpec | polySpec | hullSpec | convexSpec
regionSpec => REGION {coverSpec}* | coverspec
for the circle the REGION prefix is optional.

returns trixel table(start bigint, end bigint)
select * from dbo.fHtmCoverRegion('REGION CIRCLE CARTESIAN -.996 -.1 0 5')
see also fHtmCoverRegionError

Input and output parameters

name type length inout pnum

@region nvarchar -1 input 1

@region sysname -1 input 1

HtmIDStart bigint 8 output 1

HtmIDEnd bigint 8 output 2

name	type	length	inout	pnum
@region	nvarchar	-1	input	1
@region	sysname	-1	input	1
HtmIDStart	bigint	8	output	1
HtmIDEnd	bigint	8	output	2