Metodo SqlSpatialFunctions.BufferWithTolerance (DbGeography, Nullable<Double>, Nullable<Double>, Nullable<Boolean>)
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Restituisce un oggetto geometrico che rappresenta l'unione di tutti i valori di punto la cui distanza da un'istanza geografica è inferiore o uguale a un valore specificato, permettendo una tolleranza specificata.
Spazio dei nomi: System.Data.Entity.SqlServer
Assembly: EntityFramework.SqlServer (in EntityFramework.SqlServer.dll)
Sintassi
'Dichiarazione
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "distance")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "geographyValue")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "relative")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "tolerance")> _
<DbFunctionAttribute("SqlServer", "BUFFERWITHTOLERANCE")> _
Public Shared Function BufferWithTolerance ( _
geographyValue As DbGeography, _
distance As Nullable(Of Double), _
tolerance As Nullable(Of Double), _
relative As Nullable(Of Boolean) _
) As DbGeography
'Utilizzo
Dim geographyValue As DbGeography
Dim distance As Nullable(Of Double)
Dim tolerance As Nullable(Of Double)
Dim relative As Nullable(Of Boolean)
Dim returnValue As DbGeography
returnValue = SqlSpatialFunctions.BufferWithTolerance(geographyValue, _
distance, tolerance, relative)
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "distance")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "geographyValue")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "relative")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "tolerance")]
[DbFunctionAttribute("SqlServer", "BUFFERWITHTOLERANCE")]
public static DbGeography BufferWithTolerance(
DbGeography geographyValue,
Nullable<double> distance,
Nullable<double> tolerance,
Nullable<bool> relative
)
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"distance")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"geographyValue")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"relative")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"tolerance")]
[DbFunctionAttribute(L"SqlServer", L"BUFFERWITHTOLERANCE")]
public:
static DbGeography^ BufferWithTolerance(
DbGeography^ geographyValue,
Nullable<double> distance,
Nullable<double> tolerance,
Nullable<bool> relative
)
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "distance")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "geographyValue")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "relative")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "tolerance")>]
[<DbFunctionAttribute("SqlServer", "BUFFERWITHTOLERANCE")>]
static member BufferWithTolerance :
geographyValue:DbGeography *
distance:Nullable<float> *
tolerance:Nullable<float> *
relative:Nullable<bool> -> DbGeography
public static function BufferWithTolerance(
geographyValue : DbGeography,
distance : Nullable<double>,
tolerance : Nullable<double>,
relative : Nullable<boolean>
) : DbGeography
Parametri
- geographyValue
Tipo: System.Data.Entity.Spatial.DbGeography
Valore geografico.
- distance
Tipo: System.Nullable<Double>
La distanza.
- tolerance
Tipo: System.Nullable<Double>
La tolleranza specificata.
- relative
Tipo: System.Nullable<Boolean>
Specifica se il valore di tolleranza è relativo o assoluto.
Valore restituito
Tipo: System.Data.Entity.Spatial.DbGeography
L'unione di tutti i valori di punto la cui distanza da un'istanza geografica è inferiore o uguale a un valore specificato