fHtmCoverRegionSelect(regionspec) returns a the qualified list of HtmIDStart,HtmIDEnd pairs
that describe the level 20 trixels covering the region.
Namespace: Spherical.Htmthat describe the level 20 trixels covering the region.
Assembly: SphericalHtm (in SphericalHtm.dll) Version: 1.0.0.0
Syntax
| C# |
|---|
public static IEnumerable fHtmCoverRegionSelect( SqlString coverspec, SqlString kind ) |
| Visual C++ |
|---|
public: static IEnumerable^ fHtmCoverRegionSelect( SqlString coverspec, SqlString kind ) |
| F# |
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static member fHtmCoverRegionSelect : coverspec:SqlString * kind:SqlString -> IEnumerable |
Parameters
- coverspec
- Type: System.Data.SqlTypes..::..SqlString
a string satisfying the region syntax
- kind
- Type: System.Data.SqlTypes..::..SqlString
"Partial", "Full" or "Both"
Return Value
IEnummerable(HtmIDStart bigint, HtmIDend bigint)
Examples
create function fHtmCoverRegionSelect(@region nvarchar(max), @kind nvarchar(max))
returns table (HtmIDstart bigint, HtmIDend bigint)
as external name HTM.Sql.fHtmCoverRegionSelect
select * from fHtmCoverRegionSelect('CIRCLE J2000 195 0 1', 'full')