org.opengis.cs
Interface CS_GeographicCoordinateSystem

All Superinterfaces:

CS_CoordinateSystem, CS_HorizontalCoordinateSystem, CS_Info, java.rmi.Remote

All Known Implementing Classes:

GeographicCoordinateSystem.Export

public interface CS_GeographicCoordinateSystem

extends CS_HorizontalCoordinateSystem

A coordinate system based on latitude and longitude. Some geographic coordinate systems are Lat/Lon, and some are Lon/Lat. You can find out which this is by examining the axes. You should also check the angular units, since not all geographic coordinate systems use degrees.

Since:

1.00

Version:

1.01

Author:

Martin Daly

Method Summary

CS_AngularUnit	getAngularUnit() Returns the AngularUnit.
int	getNumConversionToWGS84() Gets the number of available conversions to WGS84 coordinates.
CS_PrimeMeridian	getPrimeMeridian() Returns the PrimeMeridian.
CS_WGS84ConversionInfo	getWGS84ConversionInfo(int index) Gets details on a conversion to WGS84.

Methods inherited from interface org.opengis.cs.CS_HorizontalCoordinateSystem

getHorizontalDatum

Methods inherited from interface org.opengis.cs.CS_CoordinateSystem

getAxis, getDefaultEnvelope, getDimension, getUnits

Methods inherited from interface org.opengis.cs.CS_Info

getAbbreviation, getAlias, getAuthority, getAuthorityCode, getName, getRemarks, getWKT, getXML

Method Detail

getAngularUnit

public CS_AngularUnit getAngularUnit()
                              throws java.rmi.RemoteException

Returns the AngularUnit. The angular unit must be the same as the CS_CoordinateSystem units.

Throws:

java.rmi.RemoteException - if a remote method call failed.

getPrimeMeridian

public CS_PrimeMeridian getPrimeMeridian()
                                  throws java.rmi.RemoteException

Returns the PrimeMeridian.

Throws:

java.rmi.RemoteException - if a remote method call failed.

getNumConversionToWGS84

public int getNumConversionToWGS84()
                            throws java.rmi.RemoteException

Gets the number of available conversions to WGS84 coordinates.

Throws:

java.rmi.RemoteException - if a remote method call failed.

getWGS84ConversionInfo

public CS_WGS84ConversionInfo getWGS84ConversionInfo(int index)
                                              throws java.rmi.RemoteException

Gets details on a conversion to WGS84. Some geographic coordinate systems provide several transformations into WGS84, which are designed to provide good accuracy in different areas of interest. The first conversion (with index=0) should provide acceptable accuracy over the largest possible area of interest.

Parameters:

index - Zero based index of conversion to fetch.

Throws:

java.rmi.RemoteException - if a remote method call failed.