Class LonLat
- java.lang.Object
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- org.openstreetmap.josm.data.projection.proj.LonLat
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Field Summary
Fields Modifier and Type Field Description private double
a
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Constructor Summary
Constructors Constructor Description LonLat()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Bounds
getAlgorithmBounds()
Return the bounds where this projection is applicable.java.lang.String
getName()
Replies a human readable name of this projection.java.lang.String
getProj4Id()
Replies the Proj.4 identifier.void
initialize(ProjParameters params)
Initialize the projection using the provided parameters.double[]
invproject(double east, double north)
Convert east/north to lat/lon.boolean
isGeographic()
Return true, if a geographic coordinate reference system is represented.double[]
project(double latRad, double lonRad)
Convert lat/lon to east/north.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.openstreetmap.josm.data.projection.proj.Proj
lonIsLinearToEast
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Field Detail
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a
private double a
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Constructor Detail
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LonLat
public LonLat()
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Method Detail
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getName
public java.lang.String getName()
Description copied from interface:Proj
Replies a human readable name of this projection.
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getProj4Id
public java.lang.String getProj4Id()
Description copied from interface:Proj
Replies the Proj.4 identifier.- Specified by:
getProj4Id
in interfaceProj
- Returns:
- The Proj.4 identifier (as reported by cs2cs -lp).
If no id exists, return
null
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initialize
public void initialize(ProjParameters params) throws ProjectionConfigurationException
Description copied from interface:Proj
Initialize the projection using the provided parameters.- Specified by:
initialize
in interfaceProj
- Parameters:
params
- The projection parameters- Throws:
ProjectionConfigurationException
- in case parameters are not suitable
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project
public double[] project(double latRad, double lonRad)
Description copied from interface:Proj
Convert lat/lon to east/north.
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invproject
public double[] invproject(double east, double north)
Description copied from interface:Proj
Convert east/north to lat/lon.- Specified by:
invproject
in interfaceProj
- Parameters:
east
- east value in meters, divided by the semi major axis of the ellipsoidnorth
- north value in meters, divided by the semi major axis of the ellipsoid- Returns:
- array of length 2, containing lat and lon in radians.
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getAlgorithmBounds
public Bounds getAlgorithmBounds()
Description copied from interface:Proj
Return the bounds where this projection is applicable. This is a fallback for when the projection bounds are not specified explicitly. In this area, the round trip lat/lon → east/north → lat/lon should return the starting value with small error. In addition, regions with extreme distortions should be excluded, if possible. It need not be the absolute maximum, but rather an area that is safe to display in JOSM and contain everything that one would expect to use.- Specified by:
getAlgorithmBounds
in interfaceProj
- Returns:
- the bounds where this projection is applicable, null if unknown
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isGeographic
public boolean isGeographic()
Description copied from interface:Proj
Return true, if a geographic coordinate reference system is represented. I.e. if it returns latitude/longitude values rather than Cartesian east/north coordinates on a flat surface.- Specified by:
isGeographic
in interfaceProj
- Returns:
- true, if it is geographic
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