Класс SqlGeographyBuilder
Constructs instances of SqlGeography objects by using IGeographySink interface.
Иерархия наследования
System. . :: . .Object
Microsoft.SqlServer.Types..::..SqlGeographyBuilder
Пространство имен: Microsoft.SqlServer.Types
Сборка: Microsoft.SqlServer.Types (в Microsoft.SqlServer.Types.dll)
Синтаксис
'Декларация
<CLSCompliantAttribute(True)> _
Public Class SqlGeographyBuilder _
Implements IGeographySink
'Применение
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
Тип SqlGeographyBuilder обеспечивает доступ к следующим элементам.
Свойства
| Имя | Описание | |
|---|---|---|
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ConstructedGeography | Retrieves the constructed spatial geography object. |
В начало
Методы
| Имя | Описание | |
|---|---|---|
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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 | (Производный от Object.) |
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Finalize | (Производный от Object.) |
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GetHashCode | (Производный от Object.) |
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GetType | (Производный от Object.) |
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MemberwiseClone | (Производный от Object.) |
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SetSrid | Sets the Spatial Reference Identifier (SRID) for a geography type call sequence. |
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ToString | (Производный от Object.) |
В начало
Замечания
Throws FormatException for an invalid call sequence or when a call sequence is incomplete when ConstructedGeography() is invoked.
Примеры
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();
Безопасность многопоточности
Любые открытые статический (Shared в Visual Basic) элементы этого типа потокобезопасны. Потокобезопасность с элементами экземпляров не гарантируется.
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