Metodo SqlSpatialFunctions.PointGeography
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Costruisce un'istanza geografica che rappresenta un'istanza di punto dai valori x e y un ID riferimento spaziale (SRID).
Spazio dei nomi: System.Data.Entity.SqlServer
Assembly: EntityFramework.SqlServer (in EntityFramework.SqlServer.dll)
Sintassi
'Dichiarazione
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "latitude")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "spatialReferenceId")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "longitude")> _
<DbFunctionAttribute("SqlServer", "POINTGEOGRAPHY")> _
Public Shared Function PointGeography ( _
latitude As Nullable(Of Double), _
longitude As Nullable(Of Double), _
spatialReferenceId As Nullable(Of Integer) _
) As DbGeography
'Utilizzo
Dim latitude As Nullable(Of Double)
Dim longitude As Nullable(Of Double)
Dim spatialReferenceId As Nullable(Of Integer)
Dim returnValue As DbGeography
returnValue = SqlSpatialFunctions.PointGeography(latitude, _
longitude, spatialReferenceId)
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "latitude")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "spatialReferenceId")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "longitude")]
[DbFunctionAttribute("SqlServer", "POINTGEOGRAPHY")]
public static DbGeography PointGeography(
Nullable<double> latitude,
Nullable<double> longitude,
Nullable<int> spatialReferenceId
)
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"latitude")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"spatialReferenceId")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"longitude")]
[DbFunctionAttribute(L"SqlServer", L"POINTGEOGRAPHY")]
public:
static DbGeography^ PointGeography(
Nullable<double> latitude,
Nullable<double> longitude,
Nullable<int> spatialReferenceId
)
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "latitude")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "spatialReferenceId")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "longitude")>]
[<DbFunctionAttribute("SqlServer", "POINTGEOGRAPHY")>]
static member PointGeography :
latitude:Nullable<float> *
longitude:Nullable<float> *
spatialReferenceId:Nullable<int> -> DbGeography
public static function PointGeography(
latitude : Nullable<double>,
longitude : Nullable<double>,
spatialReferenceId : Nullable<int>
) : DbGeography
Parametri
- latitude
Tipo: System.Nullable<Double>
Coordinata x del punto generato.
- longitude
Tipo: System.Nullable<Double>
Coordinata y del punto generato
- spatialReferenceId
Tipo: System.Nullable<Int32>
SRID dell'istanza geografica.
Valore restituito
Tipo: System.Data.Entity.Spatial.DbGeography
Istanza geografica costruita.