SqlGeographyBuilder 類別
Constructs instances of SqlGeography objects by using IGeographySink interface.
繼承階層
System. . :: . .Object
Microsoft.SqlServer.Types..::..SqlGeographyBuilder
命名空間: Microsoft.SqlServer.Types
組件: Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)
語法
'宣告
<CLSCompliantAttribute(True)> _
Public Class SqlGeographyBuilder _
Implements IGeographySink
'用途
Dim instance As SqlGeographyBuilder
[CLSCompliantAttribute(true)]
public class SqlGeographyBuilder : IGeographySink
[CLSCompliantAttribute(true)]
public ref class SqlGeographyBuilder : IGeographySink
[<CLSCompliantAttribute(true)>]
type SqlGeographyBuilder =
class
interface IGeographySink
end
public class SqlGeographyBuilder implements IGeographySink
SqlGeographyBuilder 型別公開下列成員。
方法
| 名稱 | 說明 | |
|---|---|---|
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AddLine(Double, Double) | Constructs additional points in a geography type figure. |
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AddLine(Double, Double, Nullable< (Of < <' (Double> ) > > ), Nullable< (Of < <' (Double> ) > > )) | Constructs additional points in a geography type figure. |
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BeginFigure(Double, Double) | Starts the call sequence for a geography figure. |
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BeginFigure(Double, Double, Nullable< (Of < <' (Double> ) > > ), Nullable< (Of < <' (Double> ) > > )) | Starts the call sequence for a geography figure. |
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BeginGeography | Initializes a call sequence for a geography type. |
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EndFigure | Finishes a call sequence for a geography figure. |
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EndGeography | Finishes a call sequence for a geography type. |
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Equals | (繼承自 Object。) |
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Finalize | (繼承自 Object。) |
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GetHashCode | (繼承自 Object。) |
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GetType | (繼承自 Object。) |
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MemberwiseClone | (繼承自 Object。) |
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SetSrid | Sets the Spatial Reference Identifier (SRID) for a geography type call sequence. |
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ToString | (繼承自 Object。) |
上層
備註
Throws FormatException for an invalid call sequence or when a call sequence is incomplete when ConstructedGeography() is invoked.
範例
The following example constructs a SqlGeometry object from a MultiLineString.
SqlGeographyBuilder b = new SqlGeographyBuilder();
b.SetSrid(4326);
b.BeginGeography(OpenGisGeographyType.MultiLineString);
b.BeginGeography(OpenGisGeographyType.LineString);
b.BeginFigure(-122.358, 47.653);
b.AddLine(-122.348, 47.649);
b.EndFigure();
b.EndGeography();
b.BeginGeography(OpenGisGeographyType.LineString);
b.BeginFigure(-118.481, 48.328);
b.AddLine(-119.002, 47.324);
b.EndFigure();
b.EndGeography();
b.EndGeography();
SqlGeography g = b.ConstructedGeography();
執行緒安全性
這個型別的任何公用 static (在 Visual Basic 中為 Shared) 成員都是執行緒安全的。並不是所有的執行個體成員都保證可以用於所有的執行緒。
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