Package pychlv :: Module chlvs :: Class ChLVr

Class ChLVr

                        object --+        
                                 |        
                             _ChLV --+    
                                     |    
            object --+               |    
                     |               |    
pygeodesy.named._Named --+           |    
                         |           |    
pygeodesy.named._NamedBase --+       |    
                             |       |    
  pygeodesy.ltp.LocalCartesian --+   |    
                                 |   |    
                 pygeodesy.ltp.Ltp --+    
                                     |    
                                  ChLV --+
                                         |
                    object --+           |
                             |           |
        pygeodesy.named._Named --+       |
                                 |       |
        pygeodesy.named._NamedBase --+   |
                                     |   |
          pygeodesy.ltp.LocalCartesian --+
                                         |
                                        ChLVr

Conversion between (Bessel1841) geodetic and Swiss projection coordinates using the SwissTopo Rigorous formulas 3.2 and 3.3, December 2018, pp 20-21.

Instance Methods

__init__(self, name='Bern')
New ChLVr Rigorous SwissTopo converter, centered at Bern, Ch.

forward(self, latlonh, lon=None, height=0, M=None, **name)
Convert (Bessel1841) geodetic to Swiss (Mercator) projection coordinates.

reverse(self, enh_, n=None, h_=0, M=None, **name)
Convert Swiss (Mercator) projection to (Bessel1841) geodetic coordinates.

Inherited from pygeodesy.ltp.LocalCartesian: __eq__, reset, toStr

Inherited from pygeodesy.named._NamedBase: __repr__, __str__, others, toRepr

Inherited from pygeodesy.named._Named: __format__, __imatmul__, __matmul__, __rmatmul__, attrs, classof, copy, dup, methodname, rename, renamed, toStr2

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Static Methods
Inherited from `ChLV`: `false2`, `isLV03`, `isLV95`, `unfalse2`

Class Variables
Inherited from `ChLV`: `Bern`

Properties

ellipsoid

Inherited from pygeodesy.ltp.Ltp: ecef

Inherited from pygeodesy.ltp.LocalCartesian: M, datum, height0, lat0, latlonheight0, lon0, lon00

Inherited from pygeodesy.named._Named: classname, classnaming, iteration, name, named, named2, named3, named4, sizeof, typename

Inherited from object: __class__

Method Details

init (self, name=`'Bern'`)
(Constructor)

New ChLVr Rigorous SwissTopo converter, centered at Bern, Ch.

Arguments:

name - Optional name=Bern.name (str).

Raises:

TypeError - Invalid ecef.

Overrides: object.__init__

forward (self, latlonh, lon=None, height=0, M=None, **name)

Convert (Bessel1841) geodetic to Swiss (Mercator) projection coordinates.

Arguments:

latlonh - Either a LatLon, Ltp or scalar (geodetic) latitude (degrees).
lon - Optional, scalar (geodetic) longitude (degrees) iff latlonh is scalar, ignored otherwise.
height - Optional, height, vertically above (or below) the surface of the ellipsoid (meter) iff latlonh and lon are scalar, ignored otherwise.
M - Ignored, passed as-is (None).
name - Optional name=NN (str).

Returns:

A ChLV9Tuple

(Y, X, h_, lat, lon, height, 
          ltp, ecef, M)

with the unfalsed Swiss Y, X coordinates, Swiss h_ height, the given geodetic lat, lon and height, ecef (Ecef9Tuple) at Bern, Ch and ltp this ChLVr instance.

Raises:

ChLVError - Invalid or non-scalar latlonh, lon or height.

Overrides: pygeodesy.ltp.LocalCartesian.forward

reverse (self, enh_, n=None, h_=0, M=None, **name)

Convert Swiss (Mercator) projection to (Bessel1841) geodetic coordinates.

Arguments:

enh_ - A Swiss projection (ChLV9Tuple) or the scalar, falsed Swiss E_LV95 or y_LV03 easting (meter).
n - Falsed Swiss N_LV95 or x_LV03 northing (meter) iff enh_ is scalar, ignored otherwise.
h_ - Swiss h' height (meter) iff enh_ and n are scalar, ignored otherwise.
M - Ignored, passed as-is (None).
name - Optional name=NN (str).

Returns:

A ChLV9Tuple

(Y, X, h_, lat, lon, height, 
          ltp, ecef, M)

with the unfalsed Swiss Y, X coordinates, Swiss h_ height, the given geodetic lat, lon and height, ecef (Ecef9Tuple) at Bern, Ch and ltp this ChLVr instance.

Raises:

ChLVError - Invalid or non-scalar enh_, n or h_.

Overrides: pygeodesy.ltp.LocalCartesian.reverse

Property Details

ellipsoid

Get method:: ellipsoid(self) - Get the ellipsoid (Bessel1841).
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(inst) - Zap the cached/memoized property value.

Class ChLVr

__init__ (self, name='Bern') (Constructor)

forward (self, latlonh, lon=None, height=0, M=None, **name)

reverse (self, enh_, n=None, h_=0, M=None, **name)

ellipsoid

init (self, name=`'Bern'`)
(Constructor)