Class GeometryFactoryEx

An extended GeometryFactory that is capable of enforcing a ring orientation for polygons.

Inheritance

Object

GeometryFactory

GeometryFactoryEx

Inherited Members

GeometryFactory.Default

GeometryFactory.Floating

GeometryFactory.FloatingSingle

GeometryFactory.Fixed

GeometryFactory.PrecisionModel

GeometryFactory.CoordinateSequenceFactory

GeometryFactory.SRID

GeometryFactory.GeometryServices

GeometryFactory.CreatePointFromInternalCoord(Coordinate, Geometry)

GeometryFactory.ToPointArray(IEnumerable<Geometry>)

GeometryFactory.ToGeometryArray(IEnumerable<Geometry>)

GeometryFactory.ToLineStringArray(IEnumerable<Geometry>)

GeometryFactory.ToLinearRingArray(IEnumerable<Geometry>)

GeometryFactory.ToPolygonArray(IEnumerable<Geometry>)

GeometryFactory.ToMultiPointArray(IEnumerable<Geometry>)

GeometryFactory.ToMultiLineStringArray(IEnumerable<Geometry>)

GeometryFactory.ToMultiPolygonArray(IEnumerable<Geometry>)

GeometryFactory.ToGeometry(Envelope)

GeometryFactory.CreatePoint()

GeometryFactory.CreatePoint(Coordinate)

GeometryFactory.CreatePoint(CoordinateSequence)

GeometryFactory.CreateLineString()

GeometryFactory.CreateLineString(Coordinate[])

GeometryFactory.CreateLineString(CoordinateSequence)

GeometryFactory.CreateLinearRing()

GeometryFactory.CreateLinearRing(Coordinate[])

GeometryFactory.CreateLinearRing(CoordinateSequence)

GeometryFactory.CreatePolygon()

GeometryFactory.CreatePolygon(CoordinateSequence)

GeometryFactory.CreatePolygon(Coordinate[])

GeometryFactory.CreatePolygon(LinearRing)

GeometryFactory.CreateMultiPoint()

GeometryFactory.CreateMultiPoint(Point[])

GeometryFactory.CreateMultiPointFromCoords(Coordinate[])

GeometryFactory.CreateMultiPoint(CoordinateSequence)

GeometryFactory.CreateMultiLineString()

GeometryFactory.CreateMultiLineString(LineString[])

GeometryFactory.CreateMultiPolygon()

GeometryFactory.CreateGeometryCollection()

GeometryFactory.CreateGeometryCollection(Geometry[])

GeometryFactory.BuildGeometry(IEnumerable<Geometry>)

GeometryFactory.CreateEmpty(Dimension)

GeometryFactory.CreateGeometry(Geometry)

GeometryFactory.ToString()

GeometryFactory.OnDeserialized(StreamingContext)

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Namespace: NetTopologySuite.Geometries

Assembly: NetTopologySuite.dll

Syntax

public class GeometryFactoryEx : GeometryFactory

Constructors

GeometryFactoryEx()

Constructs a GeometryFactory that generates Geometries having a floating PrecisionModel and a spatial-reference ID of 0.

Declaration

public GeometryFactoryEx()

GeometryFactoryEx(CoordinateSequenceFactory)

Constructs a GeometryFactory that generates Geometries having the given CoordinateSequence implementation, a double-precision floating PrecisionModel and a spatial-reference ID of 0.

Declaration

public GeometryFactoryEx(CoordinateSequenceFactory coordinateSequenceFactory)

Parameters

Type	Name	Description
CoordinateSequenceFactory	coordinateSequenceFactory

GeometryFactoryEx(PrecisionModel)

Constructs a GeometryFactory that generates Geometries having the given {PrecisionModel} and the default CoordinateSequence implementation.

Declaration

public GeometryFactoryEx(PrecisionModel precisionModel)

Parameters

Type	Name	Description
PrecisionModel	precisionModel	The PrecisionModel to use.

GeometryFactoryEx(PrecisionModel, Int32)

Constructs a GeometryFactory that generates Geometries having the given PrecisionModel and spatial-reference ID, and the default CoordinateSequence implementation.

Declaration

public GeometryFactoryEx(PrecisionModel precisionModel, int srid)

Parameters

Type	Name	Description
PrecisionModel	precisionModel	The PrecisionModel to use.
Int32	srid	The SRID to use.

GeometryFactoryEx(PrecisionModel, Int32, CoordinateSequenceFactory)

Constructs a GeometryFactory that generates Geometries having the given PrecisionModel, spatial-reference ID, and CoordinateSequence implementation.

Declaration

public GeometryFactoryEx(PrecisionModel precisionModel, int srid, CoordinateSequenceFactory coordinateSequenceFactory)

Parameters

Type	Name	Description
PrecisionModel	precisionModel
Int32	srid
CoordinateSequenceFactory	coordinateSequenceFactory

GeometryFactoryEx(PrecisionModel, Int32, CoordinateSequenceFactory, NtsGeometryServices)

Constructs a GeometryFactory that generates Geometries having the given PrecisionModel, spatial-reference ID, and CoordinateSequence implementation.

Declaration

public GeometryFactoryEx(PrecisionModel precisionModel, int srid, CoordinateSequenceFactory coordinateSequenceFactory, NtsGeometryServices services)

Parameters

Type	Name	Description
PrecisionModel	precisionModel
Int32	srid
CoordinateSequenceFactory	coordinateSequenceFactory
NtsGeometryServices	services

Properties

DefaultCoordinateSequenceFactory

Gets or sets the default coordinate sequence factory to use with these geometry factories

Declaration

public static CoordinateSequenceFactory DefaultCoordinateSequenceFactory { get; set; }

Property Value

Type	Description
CoordinateSequenceFactory

DefaultPrecisionModel

Gets or sets the default precision model to use with these geometry factories

Declaration

public static PrecisionModel DefaultPrecisionModel { get; set; }

Property Value

Type	Description
PrecisionModel

DefaultSRID

Gets or sets the default spatial reference id.

Declaration

public static int DefaultSRID { get; set; }

Property Value

Type	Description
Int32

OrientationOfExteriorRing

Gets or sets a value indicating the ring orientation of the Polygon's exterior rings.

If its value is DontCare, this factory behaves just like the base GeometryFactory.

Declaration

public LinearRingOrientation OrientationOfExteriorRing { get; set; }

Property Value

Type	Description
LinearRingOrientation

Remarks

The setter of this property has to be used prior to any call to CreatePolygon, CreateMultiPolygon, or ReplaceSRID

See Also

CreatePolygon(Coordinate[])

CreatePolygon(CoordinateSequence)

CreatePolygon(LinearRing)

CreatePolygon(LinearRing, LinearRing[])

CreateMultiPolygon(Polygon[])

Methods

CreateMultiPolygon(Polygon[])

Creates a MultiPolygon using the given Polygons; a null or empty array will create an empty Polygon. The polygons must conform to the assertions specified in the http://www.opengis.org/techno/specs.htm OpenGIS Simple Features Specification for SQL.

The OrientationOfExteriorRing is enforced on each polygon.

Declaration

public override MultiPolygon CreateMultiPolygon(Polygon[] polygons)

Parameters

Type	Name	Description
Polygon[]	polygons	Polygons, each of which may be empty but not null.

Returns

Type	Description
MultiPolygon	A MultiPolygon object

Overrides

GeometryFactory.CreateMultiPolygon(Polygon[])

CreatePolygon(LinearRing, LinearRing[])

Constructs a Polygon with the given exterior boundary and interior boundaries.

The OrientationOfExteriorRing is enforced on the constructed polygon.

Declaration

public override Polygon CreatePolygon(LinearRing shell, LinearRing[] holes)

Parameters

Type	Name	Description
LinearRing	shell	The outer boundary of the new Polygon, or null or an empty LinearRing if the empty point is to be created.
LinearRing[]	holes	The inner boundaries of the new Polygon, or null or empty LinearRing s if the empty point is to be created.

Returns

Type	Description
Polygon	A Polygon object

Overrides

GeometryFactory.CreatePolygon(LinearRing, LinearRing[])

WithSRID(Int32)

Declaration

public override GeometryFactory WithSRID(int srid)

Parameters

Type	Name	Description
Int32	srid

Returns

Type	Description
GeometryFactory

Overrides

GeometryFactory.WithSRID(Int32)