SqlGeography 클래스
The SqlGeography type represents data in a geodetic (round earth) coordinate system.
상속 계층
System.Object
Microsoft.SqlServer.Types.SqlGeography
네임스페이스: Microsoft.SqlServer.Types
어셈블리: Microsoft.SqlServer.Types(Microsoft.SqlServer.Types.dll)
구문
‘선언
<SerializableAttribute> _
<SqlUserDefinedTypeAttribute(Format.UserDefined, IsByteOrdered := False, _
MaxByteSize := , IsFixedLength := False)> _
<CLSCompliantAttribute(True)> _
Public NotInheritable Class SqlGeography _
Implements INullable, IBinarySerialize, ISqlSpatialGridIndexable
‘사용 방법
Dim instance As SqlGeography
[SerializableAttribute]
[SqlUserDefinedTypeAttribute(Format.UserDefined, IsByteOrdered = false,
MaxByteSize = , IsFixedLength = false)]
[CLSCompliantAttribute(true)]
public sealed class SqlGeography : INullable,
IBinarySerialize, ISqlSpatialGridIndexable
[SerializableAttribute]
[SqlUserDefinedTypeAttribute(Format::UserDefined, IsByteOrdered = false,
MaxByteSize = , IsFixedLength = false)]
[CLSCompliantAttribute(true)]
public ref class SqlGeography sealed : INullable,
IBinarySerialize, ISqlSpatialGridIndexable
[<SealedAttribute>]
[<SerializableAttribute>]
[<SqlUserDefinedTypeAttribute(Format.UserDefined, IsByteOrdered = false,
MaxByteSize = , IsFixedLength = false)>]
[<CLSCompliantAttribute(true)>]
type SqlGeography =
class
interface INullable
interface IBinarySerialize
interface ISqlSpatialGridIndexable
end
public final class SqlGeography implements INullable, IBinarySerialize, ISqlSpatialGridIndexable
SqlGeography 유형에서 다음 멤버를 표시합니다.
생성자
이름 | 설명 | |
---|---|---|
SqlGeography | Initializes a new instance of the SqlGeography class. |
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속성
이름 | 설명 | |
---|---|---|
HasM | Returns true if at least one point in a spatial object contains value M; otherwise returns false. This property is read-only. | |
HasZ | Returns true if at least one point in a spatial object contains value Z; otherwise returns false. This property is read-only. | |
IsNull | Determines whether the SqlGeography instance is null. | |
Lat | Returns the latitude property of the geography instance. | |
Long | Returns the longitude property of the geography instance. | |
M | Returns the M (measure) value of the geography instance. | |
Null | Returns a read-only property providing a null instance of the SqlGeography type. | |
STSrid | Gets or sets id is an integer representing the Spatial Reference Identifier (SRID) of the instance. | |
Z | Gets the Z (elevation) value of the instance. The semantics of the elevation value are user-defined. |
맨 위로 이동
메서드
이름 | 설명 | |
---|---|---|
AsBinaryZM | Returns the Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation of a SqlGeography instance augmented with any Z (elevation) and M (measure) values carried by the instance. | |
AsGml | Returns the Geography Markup Language (GML) representation of a SqlGeography instance. | |
AsTextZM | Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a SqlGeography instance augmented with any Z (elevation) and M (measure) values carried by the instance. | |
BufferWithCurves | Returns a SqlGeography instance that represents the set of all points whose distance from the calling SqlGeography instance is less than or equal to the distance parameter. | |
BufferWithTolerance | Returns a geometric object representing the union of all point values whose distance from a SqlGeography instance is less than or equal to a specified value, allowing for a specified tolerance. | |
CurveToLineWithTolerance | Returns a polygonal approximation of a SqlGeography instance that contains circular arc segments. | |
Deserialize | Returns a constructed SqlGeometry from an internal SQL Server format for spatial data. Can be used for sending spatial data over the network or reading them from files. | |
EnvelopeAngle | Returns the maximum angle between the point returned by EnvelopeCenter() and a point in the SqlGeography instance in degrees. | |
EnvelopeCenter | Returns a point that can be used as the center of a bounding circle for the geography instance. | |
Equals | (Object에서 상속됨) | |
Filter | Offers a fast, index-only intersection method to determine if a geography instance intersects another SqlGeography instance, assuming an index is available. | |
GeomFromGml | Constructs a SqlGeography instance given a representation in the SQL Server subset of the Geography Markup Language (GML). | |
GetHashCode | (Object에서 상속됨) | |
GetType | (Object에서 상속됨) | |
InstanceOf | Tests if the SqlGeography instance is the same as the specified type. | |
IsValidDetailed | Returns a message to help identify validity issues with a spatial object. | |
MakeValid | Converts a geography instance that is not valid into a valid geography instance with a valid Open Geospatial Consortium (OGC) type. | |
MinDbCompatibilityLevel | Returns the minimum database compatibility that accepts the SqlGeography type. | |
NumRings | Returns the total number of rings in a Polygon instance. | |
Parse | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation. | |
Point | Constructs a SqlGeography instance representing a Point instance from its x and y values and a spatial reference ID (SRID). | |
Populate(IGeographySink) | 더 이상 사용되지 않습니다. Applies a geography type call sequence to IGeographySink object. The call sequence is a set of figures, lines, and points for geography types. | |
Populate(IGeographySink110) | Applies a geography type call sequence to IGeographySink object. | |
Read | Reads a binary representation of a geography type into a SqlGeometry object. | |
Reduce | Returns an approximation of the given geography instance produced by running the Douglas-Peucker algorithm on the instance with the given tolerance. | |
ReorientObject | Returns a geography instance with interchanged interior regions and exterior regions. | |
RingN | Returns the specified ring of the SqlGeography instance: 1 ≤ n ≤ NumRings(). | |
Serialize | Used for sending spatial data across the network. | |
ShortestLineTo | Returns the shortest distance between the two SqlGeographyinstances. | |
STArea | Returns the total surface area of a SqlGeography instance. | |
STAsBinary | Returns the Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation of a SqlGeography instance. | |
STAsText | Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a SqlGeography instance. | |
STBuffer | Returns a geography object that represents the union of all points whose distance from a SqlGeography instance is less than or equal to a specified value. | |
STContains | Specifies whether the calling SqlGeography instance spatially contains the SqlGeography instance passed to the method. | |
STConvexHull | Returns an object that represents the convex hull of a SqlGeography instance. | |
STCurveN | Returns the curve specified from a SqlGeography instance that is a LineString, CircularString, or CompoundCurve. | |
STCurveToLine | Returns a polygonal approximation of a SqlGeography instance that contains circular arc segments. | |
STDifference | Returns an object representing the points from one SqlGeography instance that do not lie within another SqlGeography instance. | |
STDimension | Returns the maximum dimension of a SqlGeography instance | |
STDisjoint | Determines whether the calling SqlGeography instance is spatially disjoint from the specified SqlGeography instance. | |
STDistance | Returns the shortest distance between a point in a SqlGeography instance and a point in another SqlGeography instance. | |
STEndPoint | Returns the end point of a SqlGeography instance. | |
STEquals | Determines whether the specified SqlGeography instance has the same point set as the calling SqlGeography instance. | |
STGeomCollFromText | Returns a geography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STGeomCollFromWKB | Returns a GeometryCollection instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. | |
STGeometryN | Returns a specified geography element in a GeometryCollection or one of its subtypes. | |
STGeometryType | Returns the Open Geospatial Consortium (OGC) type name represented by a geography instance. | |
STGeomFromText | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STGeomFromWKB | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. | |
STIntersection | Returns an object representing the points where a SqlGeography instance intersects another SqlGeography instance. | |
STIntersects | Determines whether the current SqlGeography instance intersects with the specified SqlGeography. | |
STIsClosed | Determines whether the calling SqlGeography instance is closed. | |
STIsEmpty | Determines whether the SqlGeography instance is empty. | |
STIsValid | Specifies whether a geography instance is well-formed and recognized as a valid geography object based on its Open Geospatial Consortium (OGC) type. | |
STLength | Returns the total length of the elements in a SqlGeography instance or the SqlGeography instances within a GeometryCollection. | |
STLineFromText | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STLineFromWKB | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STMLineFromText | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STMLineFromWKB | Returns a SqlGeography MultiLineString instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. | |
STMPointFromText | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STMPointFromWKB | Returns a SqlGeography MultiPoint instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. | |
STMPolyFromText | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STMPolyFromWKB | Returns a SqlGeography MultiPolygon instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. | |
STNumCurves | Returns the number of curves in a one-dimensional SqlGeography instance. | |
STNumGeometries | Returns the number of geometries that make up a SqlGeography instance. | |
STNumPoints | Returns the total number of points in each of the figures in a SqlGeography instance | |
STOverlaps | Returns 1 if a SqlGeography instance spatially overlaps another SqlGeography instance, or 0 if it does not. | |
STPointFromText | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation, augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STPointFromWKB | Returns a SqlGeography Point instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. | |
STPointN | Returns the specified point in a SqlGeography instance. | |
STPolyFromText | Returns a SqlGeography instance from an Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation augmented with any Z (elevation) and M (measure) values carried by the instance. | |
STPolyFromWKB | Returns a SqlGeography Polygon instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation. | |
STStartPoint | Returns the start point of a SqlGeography instance. | |
STSymDifference | Returns an object representing all points that are either in one SqlGeography instance or another SqlGeography instance, but not those points that lie in both instances. | |
STUnion | Returns an object representing the union of a SqlGeography instance with another SqlGeography instance. | |
STWithin | Returns 1 if a SqlGeography instance is spatially within another SqlGeography instance; otherwise, returns 0. | |
ToString | Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a SqlGeography instance augmented with any Z (elevation) and M (measure) values carried by the instance. (Object.ToString()을(를) 재정의함) | |
Write | Writes a SqlGeography object to a binary stream. |
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명시적 인터페이스 구현
이름 | 설명 | |
---|---|---|
ISqlSpatialGridIndexable.BufferForDistanceQuery | Returns the buffer for distance query for the SQL Geography. | |
ISqlSpatialGridIndexable.GetBoundingBoxCorners | Returns a value for the bounding box corners for the SQL Geography. | |
ISqlSpatialGridIndexable.GetGridCoverage | Returns the grid coverage of the SQL Geography. | |
ISqlSpatialGridIndexable.InteriorBufferForDistanceQuery | Gets the interior buffer for distance query for the SQL Geography. |
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주의
SQL Server supports a set of methods for the geography spatial data type. These methods include methods on geography that are defined by the Open Geospatial Consortium (OGC) standard and a set of Microsoft extensions to that standard.
스레드 보안
이 유형의 모든 공용 static(Visual Basic에서는 Shared) 멤버는 스레드로부터 안전합니다. 인스턴스 멤버는 스레드로부터의 안전성이 보장되지 않습니다.