SpatialReferenceSystem Class

Spatial reference system maps coordinates to places on Earth. There are different types of SRS, see Type. What's more, if type of SRS is Geographic or Projected, SRS can be compound or single, see IsCompound.

Inheritance Hierarchy

SystemObject
  Aspose.Gis.SpatialReferencingIdentifiableObject
    Aspose.Gis.SpatialReferencingSpatialReferenceSystem
      More...

Namespace: Aspose.Gis.SpatialReferencing
Assembly: Aspose.GIS (in Aspose.GIS.dll) Version: 20.3.0.0 (20.03)

Syntax

C++

public abstract class SpatialReferenceSystem : IdentifiableObject

Public MustInherit Class SpatialReferenceSystem
	Inherits IdentifiableObject

public ref class SpatialReferenceSystem abstract : public IdentifiableObject

[<AbstractClassAttribute>]
type SpatialReferenceSystem =  
    class
        inherit IdentifiableObject
    end

The SpatialReferenceSystem type exposes the following members.

Properties

	Name	Description
	AsCompound	Returns this SRS converted to CompoundSpatialReferenceSystem. Use IsCompound to find out if conversion is possible.
	AsGeocentric	Returns this SRS converted to GeocentricSpatialReferenceSystem. Use Type to find out if conversion is possible.
	AsGeographic	Returns this SRS converted to GeographicSpatialReferenceSystem. Use Type to find out if conversion is possible.
	AsLocal	Returns this SRS converted to LocalSpatialReferenceSystem. Use Type to find out if conversion is possible.
	AsProjected	Returns this SRS converted to ProjectedSpatialReferenceSystem. Use Type to find out if conversion is possible.
	AsVertical	Returns this SRS converted to VerticalSpatialReferenceSystem. Use Type to find out if conversion is possible.
	DimensionsCount	Returns number of dimensions in this SRS.
	EpsgCode	If this objects identifier is EPSG identifier - return its code. Otherwise - return -1. (Inherited from IdentifiableObject.)
	Etrs89	ETRS 89 (EPSG:4258) spatial reference system.
	Etrs89LambertAzimuthalEqualArea	ETRS 89 / ETRS Lambert Azimuthal Equal Area (EPSG:3035) spatial reference system.
	Etrs89LambertConformalConic	ETRS 89 / Lambert Conformal Conic (EPSG:3034) spatial reference system.
	GeographicDatum	Returns geographic datum of this SRS.
	HasGeographicDatum	Determines whether this SRS has geographic datum. This is true for every geographic, projected and geocentric SRS.
	HasPrimeMeridian	Returns whether this SRS has prime meridian. This is true for every geographic, projected and geocentric SRS.
	Identifier	Identifier of this identifiable object. (Inherited from IdentifiableObject.)
	IsCompound	Returns whether this SRS is compound (a union of two SRS). Following combinations of SRS in compound SRS are considered valid: Geographic SRS + Vertical SRS, in this case type of compound SRS will be Geographic. Projected SRS + Vertical SRS, in this case type of compound SRS will be Projected. If combination of SRSs differs, type of compound SRS will be Unknown.
	IsSingle	Returns whether this SRS is single (not a union of two SRS).
	IsValid	Same as Validate(String), but don't return error message.
	Nad83	NAD 83 (EPSG:4269) spatial reference system.
	Name	Name of this object. (Inherited from IdentifiableObject.)
	Osgb36	OSGB 36 (EPSG:4277) spatial reference system.
	Osgb36BritishNationalGrid	OSGB 36 / British National Grid (EPSG:27700) spatial reference system.
	PrimeMeridian	Returns prime meridian of this SRS.
	Type	Gets type of this SRS, see SpatialReferenceSystemType.
	WebMercator	Web Mercator (EPSG:3857) spatial reference system.
	Wgs72	WGS 72 (EPSG:4322) spatial reference system.
	Wgs84	WGS 84 (EPSG:4326) spatial reference system.

Methods

	Name	Description
	CreateCompound	Create compound SRS.
	CreateFromEpsg	Create a spatial reference system based the specified EPSG code.
	CreateFromWkt	Creates a new SpatialReferenceSystem based on WKT (Well-Known Text) string.
	CreateGeocentric	Create geocentric SRS from custom parameters.
	CreateGeographic	Create geographic SRS from custom parameters.
	CreateLocal	Create local SRS.
	CreateProjected	Create projected SRS from custom parameters.
	CreateTransformationTo	Creates transformation from this SpatialReferenceSystem to another SpatialReferenceSystem.
	CreateVertical	Create vertical SRS.
	Equals	(Inherited from Object.)
	ExportToWkt	Returns representation of this SRS as WKT string. The result WKT string will match OGC 01-009 specification, usually named "WKT1".
	Finalize	(Inherited from Object.)
	GetAxis	Get Axis that describes dimension.
	GetHashCode	(Inherited from Object.)
	GetType	(Inherited from Object.)
	GetUnit	Get Unit of dimension.
	IsEquivalent(SpatialReferenceSystem)	Detects whether this SRS is equivalent to other SRS. .
	IsEquivalent(SpatialReferenceSystem, SpatialReferenceSystem)	Determines if two SRS are equivalent. Same coordinates of equivalent SRS match same place on Earth. Some parameters of equivalent SRS can be different, for example Name.
	MemberwiseClone	(Inherited from Object.)
	ToString	(Inherited from Object.)
	TryCreateFromEpsg	Create a spatial reference system based the specified EPSG code.
	TryCreateFromWkt	Creates a new SpatialReferenceSystem based on WKT (Well-Known Text) string.
	TryCreateTransformationTo	Creates transformation from this SpatialReferenceSystem to another SpatialReferenceSystem.
	Validate	Determine if this SRS is valid.

Reference

Aspose.Gis.SpatialReferencing Namespace

Inheritance Hierarchy