程序包 org.meteoinfo.projection.proj4j

类 CoordinateReferenceSystem

java.lang.Object

org.meteoinfo.projection.proj4j.CoordinateReferenceSystem

public class CoordinateReferenceSystem
extends java.lang.Object

Represents a projected or geodetic geospatial coordinate system, to which coordinates may be referenced. A coordinate system is defined by the following things:

• an Ellipsoid specifies how the shape of the Earth is approximated
• a Datum provides the mapping from the ellipsoid to actual locations on the earth
• a Projection method maps the ellpsoidal surface to a planar space. (The projection method may be null in the case of geodetic coordinate systems).
• a Unit indicates how the ordinate values of coordinates are interpreted

作者:

Martin Davis

另请参阅:

CRSFactory

字段概要

字段

修饰符和类型	字段	说明
static CoordinateReferenceSystem	CS_GEO

构造器概要

构造器

构造器	说明
CoordinateReferenceSystem(java.lang.String name, java.lang.String[] params, Datum datum, Projection proj)

方法概要

修饰符和类型	方法	说明
CoordinateReferenceSystem	createGeographic()	Creates a geographic (unprojected) CoordinateReferenceSystem based on the Datum of this CRS.
Datum	getDatum()
java.lang.String	getName()
java.lang.String[]	getParameters()
java.lang.String	getParameterString()
Projection	getProjection()
java.lang.String	toEsriString()	To Esri projection string
java.lang.String	toString()

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

字段详细资料

CS_GEO

public static final CoordinateReferenceSystem CS_GEO

构造器详细资料

CoordinateReferenceSystem

public CoordinateReferenceSystem(java.lang.String name,
                                 java.lang.String[] params,
                                 Datum datum,
                                 Projection proj)

方法详细资料

getName

public java.lang.String getName()

getParameters

public java.lang.String[] getParameters()

getDatum

public Datum getDatum()

getProjection

public Projection getProjection()

getParameterString

public java.lang.String getParameterString()

toEsriString

public java.lang.String toEsriString()

To Esri projection string

返回:

Esri projection string

createGeographic

public CoordinateReferenceSystem createGeographic()

Creates a geographic (unprojected) CoordinateReferenceSystem based on the Datum of this CRS. This is useful for defining CoordinateTransforms to and from geographic coordinate systems, where no datum transformation is required. The Units of the geographic CRS are set to Units.DEGREES.

返回:

a geographic CoordinateReferenceSystem based on the datum of this CRS

toString

public java.lang.String toString()

覆盖:

toString 在类中 java.lang.Object