Package mccombe.mapping
Class BMN
- java.lang.Object
-
- Direct Known Subclasses:
AustrianM28
,AustrianM31
,AustrianM34
public abstract class BMN extends TransverseMercator
Abstract base class for the Austrian BMN (Bundesmeldnetz) coordinate system
-
-
Field Summary
Fields Modifier and Type Field Description protected java.lang.String
zonename
-
Fields inherited from class mccombe.mapping.TransverseMercator
northernHemisphere, zone
-
Fields inherited from class mccombe.mapping.CoordinateSystem
locus, ref, sph
-
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Datum
defaultDatum()
Get the defaul Datum for an instance of CoordinateSystem.Ellipsoid
defaultEllipsoid()
The default Ellipsoid used by instances of this CoordinateSystem For example, a CoordinateSystem of type OSGB has the AirySphere as its default Ellipsoiddouble
f0()
The scale factor on the Central Meridian.double
n0()
n0() defines the "false northing" distance of the projection.double
phi0()
phi0() defines the latitude of the true origin of the projection.java.lang.String
toString()
Provide a String representation of this UTM point in UTM coordinates-
Methods inherited from class mccombe.mapping.TransverseMercator
e0, gridConvergence, lamda0, pointScaleFactor, toEN
-
Methods inherited from class mccombe.mapping.CoordinateSystem
getDatum, getEllipsoid, getName, getPosition, getWGS84, parseDouble, toLatLong, toLatLongString
-
-
-
-
Method Detail
-
defaultDatum
public Datum defaultDatum()
Description copied from class:CoordinateSystem
Get the defaul Datum for an instance of CoordinateSystem. For example, instances of OSGB usually use the OSGB 1936 datum.- Specified by:
defaultDatum
in classCoordinateSystem
- Returns:
- The default Datum used by this instance of CoordinateSystem
-
defaultEllipsoid
public Ellipsoid defaultEllipsoid()
Description copied from class:CoordinateSystem
The default Ellipsoid used by instances of this CoordinateSystem For example, a CoordinateSystem of type OSGB has the AirySphere as its default Ellipsoid- Specified by:
defaultEllipsoid
in classCoordinateSystem
- Returns:
- The Ellipsoid used as the deafult for this CoordinateSystem
-
toString
public java.lang.String toString()
Provide a String representation of this UTM point in UTM coordinates- Specified by:
toString
in classCoordinateSystem
- Returns:
- A UTM coordinate String
-
f0
public double f0()
The scale factor on the Central Meridian. Generally, Transverse Mercator projections increasingly exaggerate distances further from the central meridian. It is usual to reduce the scale factor at the central meridian to compensate for this effect and optimise the scale over the area of interest.- Specified by:
f0
in classTransverseMercator
- Returns:
- the value of the ScaleFactor at the central meridian.
-
n0
public double n0()
n0() defines the "false northing" distance of the projection. False origins are usually used with TM projections to ensure that easting and northing distances are always positive over the area of interest. n0() is used as an offset to the grid so that the "true origin" appears to have a northing value equal to n0().- Specified by:
n0
in classTransverseMercator
- Returns:
- The false northing distance (double)
-
phi0
public double phi0()
phi0() defines the latitude of the true origin of the projection. Note, however, that many Transverse Mercator projections employ a false origin. See n0() and e0() .- Specified by:
phi0
in classTransverseMercator
- Returns:
- The latitude of the true origin (radians)
-
-