Package pygeodesy :: Module lom :: Class LabordeOblique

Class LabordeOblique

  object --+        
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named._Named --+    
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named._NamedBase --+
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                  LabordeOblique

Ellipsoidal Laborde Oblique Mercator projection given the central point and azimuth.

Instance Methods

__init__(self, lat_latlon, lon=None, azimuth=0.0, earth=Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran..., kC=1.0, x0=0.0, y0=0.0, **name)
New ellipsoidal LabordeOblique Mercator.

forward(self, lat_latlon, lon, **name)
Project a geodetic lat- and longitude in degrees to Laborde east- and northing.

reverse(self, x, y, **name)
Project an Laborde east- and northing to geodetic lat- and longitude.

toStr(self, **kwds)
Get this HotineOblique* instance as str.

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

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
	azimuthC Get the center line azimuth (`degrees180`) or `NAN`.
	earth Get the earth model (Datum).
	ellipsoid Get the earth' ellipsoid (Ellipsoid).
	kC Get the scale factor at center (`scalar`).
	latlonC Get the center point (LatLon2Tuple).
	latlonParis Get Paris Observatory lat- and Paris Meridian longitude (LatLon2Tuple).
	philamC Get the center point (PhiLam2Tuple).
	philamParis Get Paris Observatory lat- and Paris Meridian longitude (PhiLam2Tuple).
	xy0 Get the false east- and northing (Vector2Tuple, `meter`).
Inherited from `named._Named`: `classname`, `classnaming`, `iteration`, `name`, `named`, `named2`, `named3`, `named4`, `sizeof`, `typename` Inherited from `object`: `__class__`

Method Details

init (self, lat_latlon, lon=None, azimuth=0.0, earth=Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran`...`, kC=1.0, x0=0.0, y0=0.0, **name)
(Constructor)

New ellipsoidal LabordeOblique Mercator.

Arguments:

lat_latlon - Central latitude (scalar degrees90 or LatLon, 2-tuple (lat, lon) or comma-separated "latDMS, lonDMS" str).
lon - Central longitude (degrees180), required if lat_latlon is scalar, ignored otherwise.
azimuth - Azimuth of the center line (degrees360 from North).
earth - Earth model (Datum, Ellipsoid, Ellipsoid2 or a_f2Tuple).
kC - Central scale factor (scalar).
x0 - False easting (meter).
y0 - False northing (meter).
name - Optional name=NN (str).

Overrides: object.__init__

See Also: Roundtrip error

forward (self, lat_latlon, lon, **name)

Project a geodetic lat- and longitude in degrees to Laborde east- and northing.

Arguments:

lat_latlon - Latitude of the point (scalar degrees90 or LatLon, 2-tuple (lat, lon) or comma-separated "latDMS, lonDMS" str).
lon - Longitude of the point (degrees180), required if lat_latlon is scalar, ignored otherwise.
name - Optional name=NN (str).

Returns:

Laborde8Tuple

(x, y, U, V, lat, lon, scale,
          lom)

with falsed east- and northing x and y in meter, "unrectified" U and V, geodetic lat- and longitude in degrees, scale factor (aka k) and this LabordeOblique* Mercator instance lom.

reverse (self, x, y, **name)

Project an Laborde east- and northing to geodetic lat- and longitude.

Arguments:

x - Easting of the point (meter).
y - Northing of the point (meter).
name - Optional name=NN (str).

Returns:

Laborde8Tuple

(x, y, U, V, lat, lon, scale,
          lom)

with geodetic lat- and longitude in degrees, "unrectified" U and V, scale factor (aka k), falsed east- and northing x and y and this LabordeOblique* Mercator instance lom.

toStr (self, **kwds)

Get this HotineOblique* instance as str.

Overrides: named._Named.toStr

Property Details

azimuthC

Get the center line azimuth (degrees180) or NAN.

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

earth

Get the earth model (Datum).

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

ellipsoid

Get the earth' ellipsoid (Ellipsoid).

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

kC

Get the scale factor at center (scalar).

Get method:: kC(self) - Get the scale factor at center (scalar).
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(inst) - Zap the cached/memoized property value.

latlonC

Get the center point (LatLon2Tuple).

Get method:: latlonC(self) - Get the center point (LatLon2Tuple).
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(inst) - Zap the cached/memoized property value.

latlonParis

Get Paris Observatory lat- and Paris Meridian longitude (LatLon2Tuple).

Get method:: _fget(inst) - Get the property value once and overwrite self, this property instance in the (super-)class of self where this property is define as a property_ROver.
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(*unused) - Silently ignored, always.

philamC

Get the center point (PhiLam2Tuple).

Get method:: philamC(self) - Get the center point (PhiLam2Tuple).
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(inst) - Zap the cached/memoized property value.

philamParis

Get Paris Observatory lat- and Paris Meridian longitude (PhiLam2Tuple).

Get method:: _fget(inst) - Get the property value once and overwrite self, this property instance in the (super-)class of self where this property is define as a property_ROver.
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(*unused) - Silently ignored, always.

xy0

Get the false east- and northing (Vector2Tuple, meter).

Get method:: xy0(self) - Get the false east- and northing (Vector2Tuple, meter).
Set method:: _fset_error(inst, val) - Throws an AttributeError, always.
Delete Method:: _fdel(inst) - Zap the cached/memoized property value.

Class LabordeOblique

__init__ (self, lat_latlon, lon=None, azimuth=0.0, earth=Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran..., kC=1.0, x0=0.0, y0=0.0, **name) (Constructor)

forward (self, lat_latlon, lon, **name)

reverse (self, x, y, **name)

toStr (self, **kwds)

azimuthC

earth

ellipsoid

kC

latlonC

latlonParis

philamC

philamParis

xy0

init (self, lat_latlon, lon=None, azimuth=0.0, earth=Datum(name='WGS84', ellipsoid=Ellipsoids.WGS84, transform=Tran`...`, kC=1.0, x0=0.0, y0=0.0, **name)
(Constructor)