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pygeodesy
Package pygeodesy :: Module css :: Class CassiniSoldner
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Class CassiniSoldner

  object --+        
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named._Named --+    
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named._NamedBase --+
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                  CassiniSoldner

Cassini-Soldner projection, a Python version of Karney's C++ class CassiniSoldner.

Instance Methods
 
__init__(self, lat0, lon0, datum=Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran..., **name)
New CassiniSoldner projection.
 
forward(self, lat, lon, **name)
Convert an (ellipsoidal) geodetic location to Cassini-Soldner easting and northing.
 
forward4(self, lat, lon, **name)
Convert an (ellipsoidal) geodetic location to Cassini-Soldner easting and northing.
 
forward6(self, lat, lon, **name)
Convert an (ellipsoidal) geodetic location to Cassini-Soldner easting and northing.
 
reset(self, lat0, lon0)
Set or reset the center point of this Cassini-Soldner projection.
 
reverse(self, easting, northing, LatLon=None, **name_LatLon_kwds)
Convert a Cassini-Soldner location to (ellipsoidal) geodetic lat- and longitude.
 
reverse4(self, easting, northing, **name)
Convert a Cassini-Soldner location to (ellipsoidal) geodetic lat- and longitude.
 
toLatLon(self, easting, northing, LatLon=None, **name_LatLon_kwds)
Convert a Cassini-Soldner location to (ellipsoidal) geodetic lat- and longitude.
 
toRepr(self, prec=6, **unused)
Return a string representation of this projection.
 
toStr(self, prec=6, sep=' ', **unused)
Return a string representation of this projection.

Inherited from named._NamedBase: __repr__, __str__, others

Inherited from 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__

Properties
  datum
Get the datum (Datum).
  equatoradius
Get the ellipsoid's equatorial radius, semi-axis (meter).
  a
Get the ellipsoid's equatorial radius, semi-axis (meter).
  flattening
Get the ellipsoid's flattening (scalar).
  f
Get the ellipsoid's flattening (scalar).
  geodesic
Get this projection's wrapped geodesic.Geodesic, provided Karney's geographiclib package is installed, otherwise an exact GeodesicExact instance.
  isExact
Return True if this projection's geodesic is GeodesicExact.
  lat0
Get the center latitude (degrees90).
  latlon0
Get the center lat- and longitude (LatLon2Tuple(lat, lon)) in (degrees90, (degrees180).
  lon0
Get the center longitude (degrees180).
  majoradius
DEPRECATED, use property equatoradius.

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

Inherited from object: __class__

Method Details

__init__ (self, lat0, lon0, datum=Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran..., **name)
(Constructor)

 

New CassiniSoldner projection.

Arguments:
  • lat0 - Latitude of center point (degrees90).
  • lon0 - Longitude of center point (degrees180).
  • datum - Optional datum or ellipsoid (Datum, Ellipsoid, Ellipsoid2 or a_f2Tuple).
  • name - Optional name=NN (str).
Raises:
Overrides: object.__init__

forward (self, lat, lon, **name)

 

Convert an (ellipsoidal) geodetic location to Cassini-Soldner easting and northing.

Arguments:
  • lat - Latitude of the location (degrees90).
  • lon - Longitude of the location (degrees180).
  • name - Optional name=NN inlieu of this projection's name (str).
Returns:
An EasNor2Tuple(easting, northing).
Raises:

See Also: Methods CassiniSoldner.forward4, CassiniSoldner.reverse and CassiniSoldner.reverse4.

forward4 (self, lat, lon, **name)

 

Convert an (ellipsoidal) geodetic location to Cassini-Soldner easting and northing.

Arguments:
  • lat - Latitude of the location (degrees90).
  • lon - Longitude of the location (degrees180).
  • name - Optional name=NN inlieu of this projection's name (str).
Returns:
An EasNorAziRk4Tuple(easting, northing, azimuth, reciprocal).
Raises:

See Also: Method CassiniSoldner.forward, CassiniSoldner.forward6, CassiniSoldner.reverse and CassiniSoldner.reverse4.

forward6 (self, lat, lon, **name)

 

Convert an (ellipsoidal) geodetic location to Cassini-Soldner easting and northing.

Arguments:
  • lat - Latitude of the location (degrees90).
  • lon - Longitude of the location (degrees180).
  • name - Optional name=NN inlieu of this projection's name (str).
Returns:
An EasNorAziRkEqu6Tuple(easting, northing, azimuth, reciprocal, equatorarc, equatorazimuth).
Raises:

See Also: Method CassiniSoldner.forward, CassiniSoldner.forward4, CassiniSoldner.reverse and CassiniSoldner.reverse4.

reset (self, lat0, lon0)

 

Set or reset the center point of this Cassini-Soldner projection.

Arguments:
  • lat0 - Center point latitude (degrees90).
  • lon0 - Center point longitude (degrees180).
Raises:

reverse (self, easting, northing, LatLon=None, **name_LatLon_kwds)

 

Convert a Cassini-Soldner location to (ellipsoidal) geodetic lat- and longitude.

Arguments:
  • easting - Easting of the location (meter).
  • northing - Northing of the location (meter).
  • LatLon - Optional, ellipsoidal class to return the geodetic location as (LatLon) or None.
  • name_LatLon_kwds - Optional name name=NN (str) and optionally, additional LatLon keyword arguments, ignored if LatLon is None.
Returns:
Geodetic location LatLon or if LatLon is None, a LatLon2Tuple(lat, lon).
Raises:
  • CSSError - Ellipsoidal mismatch of LatLon and this projection.
  • TypeError - Invalid LatLon or LatLon_kwds.

See Also: Method CassiniSoldner.reverse4, CassiniSoldner.forward. CassiniSoldner.forward4 and CassiniSoldner.forward6.

reverse4 (self, easting, northing, **name)

 

Convert a Cassini-Soldner location to (ellipsoidal) geodetic lat- and longitude.

Arguments:
  • easting - Easting of the location (meter).
  • northing - Northing of the location (meter).
  • name - Optional name=NN inlieu of this projection's name (str).
Returns:
A LatLonAziRk4Tuple(lat, lon, azimuth, reciprocal).

See Also: Method CassiniSoldner.reverse, CassiniSoldner.forward and CassiniSoldner.forward4.

toLatLon (self, easting, northing, LatLon=None, **name_LatLon_kwds)

 

Convert a Cassini-Soldner location to (ellipsoidal) geodetic lat- and longitude.

Arguments:
  • easting - Easting of the location (meter).
  • northing - Northing of the location (meter).
  • LatLon - Optional, ellipsoidal class to return the geodetic location as (LatLon) or None.
  • name_LatLon_kwds - Optional name name=NN (str) and optionally, additional LatLon keyword arguments, ignored if LatLon is None.
Returns:
Geodetic location LatLon or if LatLon is None, a LatLon2Tuple(lat, lon).
Raises:
  • CSSError - Ellipsoidal mismatch of LatLon and this projection.
  • TypeError - Invalid LatLon or LatLon_kwds.

See Also: Method CassiniSoldner.reverse4, CassiniSoldner.forward. CassiniSoldner.forward4 and CassiniSoldner.forward6.

toRepr (self, prec=6, **unused)

 

Return a string representation of this projection.

Arguments:
  • prec - Number of (decimal) digits, unstripped (int).
Returns:
This projection as "<classname>(lat0, lon0, ...)" (str).
Overrides: named._Named.toRepr

toStr (self, prec=6, sep=' ', **unused)

 

Return a string representation of this projection.

Arguments:
  • prec - Number of (decimal) digits, unstripped (int).
  • sep - Separator to join (str).
Returns:
This projection as "lat0 lon0" (str).
Overrides: named._Named.toStr

Property Details

datum

Get the datum (Datum).

Get method:
datum(self) - Get the datum (Datum).
Set method:
datum(self, datum) - Set the datum or ellipsoid (Datum, Ellipsoid, Ellipsoid2 or a_f2Tuple) or None for the default.
Delete Method:
_fdel(inst) - Zap the cached/memoized property value.

equatoradius

Get the ellipsoid's equatorial radius, semi-axis (meter).

Get method:
equatoradius(self) - Get the ellipsoid's equatorial radius, semi-axis (meter).
Set method:
_fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:
_fdel(inst) - Zap the cached/memoized property value.

a

Get the ellipsoid's equatorial radius, semi-axis (meter).

Get method:
equatoradius(self) - Get the ellipsoid's equatorial radius, semi-axis (meter).
Set method:
_fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:
_fdel(inst) - Zap the cached/memoized property value.

flattening

Get the ellipsoid's flattening (scalar).

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

f

Get the ellipsoid's flattening (scalar).

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

geodesic

Get this projection's wrapped geodesic.Geodesic, provided Karney's geographiclib package is installed, otherwise an exact GeodesicExact instance.

Get method:
geodesic(self) - Get this projection's wrapped geodesic.Geodesic, provided Karney's geographiclib package is installed, otherwise an exact GeodesicExact instance.
Set method:
geodesic(self, exact) - Set this projection's geodesic (bool) to GeodesicExact or wrapped Karney's or None for the default.
Delete Method:
_fdel(inst) - Zap the cached/memoized property value.

isExact

Return True if this projection's geodesic is GeodesicExact.

Get method:
isExact(self) - Return True if this projection's geodesic is GeodesicExact.
Set method:
_fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:
_fdel(inst) - Zap the cached/memoized property value.

lat0

Get the center latitude (degrees90).

Get method:
lat0(self) - Get the center latitude (degrees90).
Set method:
_fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:
_fdel(inst) - Zap the cached/memoized property value.

latlon0

Get the center lat- and longitude (LatLon2Tuple(lat, lon)) in (degrees90, (degrees180).

Get method:
latlon0(self) - Get the center lat- and longitude (LatLon2Tuple(lat, lon)) in (degrees90, (degrees180).
Set method:
latlon0(self, latlon0) - Set the center lat- and longitude (ellipsoidal LatLon, LatLon2Tuple, LatLon4Tuple or a tuple or list with the lat- and longitude in degrees).

lon0

Get the center longitude (degrees180).

Get method:
lon0(self) - Get the center longitude (degrees180).
Set method:
_fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:
_fdel(inst) - Zap the cached/memoized property value.

majoradius

DEPRECATED, use property equatoradius.

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

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