Package pygeodesy :: Module azimuthal :: Class _AzimuthalBase

Class _AzimuthalBase

  object --+        
           |        
named._Named --+    
               |    
named._NamedBase --+
                   |
                  _AzimuthalBase

Known Subclasses:

(INTERNAL) Base class for azimuthal projections.

See Also: Karney's C++ class AzimuthalEquidistant and Gnomonic or the PyGeodesy versions thereof EquidistantKarney respectively GnomonicKarney.

Instance Methods

__init__(self, lat0, lon0, datum=None, name='')
New azimuthal projection.

forward(self, lat, lon, name='')
Must be overloaded.

reset(self, lat0, lon0)
Set or reset the center point of this azimuthal projection.

reverse(self, x, y, name='', **LatLon_and_kwds)
Must be overloaded.

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: __imatmul__, __matmul__, __rmatmul__, attrs, classof, copy, dup, methodname, rename, toStr2

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

Properties
	datum Get the datum (Datum).
	equatoradius Get the geodesic's equatorial radius, semi-axis (`meter`).
	a Get the geodesic's equatorial radius, semi-axis (`meter`).
	flattening Get the geodesic's flattening (`scalar`).
	f Get the geodesic's flattening (`scalar`).
	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`.
	radius Get this projection's mean radius of curvature (`meter`).
Inherited from `named._Named`: `classname`, `classnaming`, `iteration`, `name`, `named`, `named2`, `named3`, `named4`, `sizeof` Inherited from `object`: `__class__`

Method Details

init (self, lat0, lon0, datum=None, name='')
(Constructor)

New azimuthal projection.

Arguments:

lat0 - Latitude of the center point (degrees90).
lon0 - Longitude of the center point (degrees180).
datum - Optional datum or ellipsoid (Datum, Ellipsoid, Ellipsoid2 or a_f2Tuple) or scalar earth radius (meter).
name - Optional name for the projection (str).

Raises:

AzimuthalError - Invalid lat0 or lon0 or (spherical) datum.
TypeError - Invalid datum.

Overrides: object.__init__

reset (self, lat0, lon0)

Set or reset the center point of this azimuthal projection.

Arguments:

lat0 - Center point latitude (degrees90).
lon0 - Center point longitude (degrees180).

Raises:

AzimuthalError - Invalid lat0 or lon0.

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:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(inst) - Zap the cached/memoized property value.

equatoradius

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

Get method:: equatoradius(self) - Get the geodesic'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 geodesic's equatorial radius, semi-axis (meter).

Get method:: equatoradius(self) - Get the geodesic'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 geodesic's flattening (scalar).

Get method:: flattening(self) - Get the geodesic'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 geodesic's flattening (scalar).

Get method:: flattening(self) - Get the geodesic's flattening (scalar).
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 (LatLon, LatLon2Tuple or LatLon4Tuple).

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.

radius

Get this projection's mean radius of curvature (meter).

Get method:: radius(self) - Get this projection's mean radius of curvature (meter).
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(inst) - Zap the cached/memoized property value.

Class _AzimuthalBase

__init__ (self, lat0, lon0, datum=None, name='') (Constructor)

reset (self, lat0, lon0)

toRepr (self, prec=6, **unused)

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

datum

equatoradius

a

flattening

f

lat0

latlon0

lon0

majoradius

radius

init (self, lat0, lon0, datum=None, name='')
(Constructor)