SqlGeometryBuilder 类

Constructs instances of SqlGeometry objects by using IGeometrySink interface.

继承层次结构

System.Object
  Microsoft.SqlServer.Types.SqlGeometryBuilder

命名空间：  Microsoft.SqlServer.Types
程序集：  Microsoft.SqlServer.Types（在 Microsoft.SqlServer.Types.dll 中）

语法

声明
<CLSCompliantAttribute(True)> _
Public Class SqlGeometryBuilder _
    Implements IGeometrySink110, IGeometrySink
用法
Dim instance As SqlGeometryBuilder

[CLSCompliantAttribute(true)]
public class SqlGeometryBuilder : IGeometrySink110, 
    IGeometrySink

[CLSCompliantAttribute(true)]
public ref class SqlGeometryBuilder : IGeometrySink110, 
    IGeometrySink

[<CLSCompliantAttribute(true)>]
type SqlGeometryBuilder =  
    class 
        interface IGeometrySink110 
        interface IGeometrySink 
    end

public class SqlGeometryBuilder implements IGeometrySink110, IGeometrySink

SqlGeometryBuilder 类型公开以下成员。

构造函数

	名称	说明
	SqlGeometryBuilder	Constructs a SqlGeometryBuilder object.

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属性

	名称	说明
	ConstructedGeometry	Retrieves constructed spatial geometry object.

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方法

	名称	说明
	AddCircularArc(Double, Double, Double, Double)	Adds a circular arc to the path.
	AddCircularArc(Double, Double, Nullable<Double>, Nullable<Double>, Double, Double, Nullable<Double>, Nullable<Double>)	Adds a circular arc to the path.
	AddLine(Double, Double)	Constructs additional points in a geometry type figure.
	AddLine(Double, Double, Nullable<Double>, Nullable<Double>)	Constructs additional points in the call sequence for a geometry type.
	BeginFigure(Double, Double)	Starts the call sequence for a geometry figure.
	BeginFigure(Double, Double, Nullable<Double>, Nullable<Double>)	Starts the call sequence for a geometry figure.
	BeginGeometry	Initializes a call sequence for a geometry type.
	EndFigure	Finishes a call sequence for a geometry figure.
	EndGeometry	Finishes a call sequence for a geometry type.
	Equals	（从 Object 继承。）
	Finalize	（从 Object 继承。）
	GetHashCode	（从 Object 继承。）
	GetType	（从 Object 继承。）
	MemberwiseClone	（从 Object 继承。）
	SetSrid	Sets the Spatial Reference Identifier (SRID) for a geometry type call sequence.
	ToString	（从 Object 继承。）

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注释

Throws FormatException for an invalid call sequence or when a call sequence is incomplete when ConstructedGeometry() is invoked.

示例

The following example constructs a SqlGeometry object from a MultiLineString.

SqlGeometryBuilder b = new SqlGeometryBuilder();

b.SetSrid(0);

b.BeginGeometry(OpenGisGeometryType.MultiLineString);

b.BeginGeometry(OpenGisGeometryType.LineString);

b.BeginFigure(1, 1);

b.AddLine(3, 4);

b.EndFigure();

b.EndGeometry();

b.BeginGeometry(OpenGisGeometryType.LineString);

b.BeginFigure(-5, -3);

b.AddLine(2, 2);

b.EndFigure();

b.EndGeometry();

b.EndGeometry();

SqlGeometry g = b.ConstructedGeometry();

线程安全

此类型的任何公共 static（在 Visual Basic 中为 Shared） 成员都是线程安全的。不保证所有实例成员都是线程安全的。

请参阅

参考

Microsoft.SqlServer.Types 命名空间