def toCartesian(self, **Cartesian_h_datum_kwds): # PYCHOK Cartesian=Cartesian
'''Convert this n-vector to C{Nvector}-based cartesian
(ECEF) coordinates.
@kwarg Cartesian_h_datum_kwds: Optional L{Cartesian}, B{C{h}},
B{C{datum}} and other keyword arguments, ignored if
B{C{Cartesian=None}}. Use B{C{Cartesian=...}}
to override this L{Cartesian} class or specify
B{C{Cartesian=None}}.
@return: The cartesian point (L{Cartesian}) or if B{C{Cartesian}}
is C{None}, an L{Ecef9Tuple}C{(x, y, z, lat, lon, height,
C, M, datum)} with C{C} and C{M} if available.
@raise TypeError: Invalid B{C{Cartesian}}, B{C{h}}, B{C{datum}} or
other B{C{Cartesian_h_datum_kwds}}.
@example:
>>> v = Nvector(0.5, 0.5, 0.7071)
>>> c = v.toCartesian() # [3194434, 3194434, 4487327]
>>> p = c.toLatLon() # 45.0°N, 45.0°E
'''
kwds = _xkwds(Cartesian_h_datum_kwds, h=self.h, Cartesian=Cartesian,
datum=self.datum)
return NvectorBase.toCartesian(self, **kwds) # class or .classof
def meanOf(points, datum=Datums.WGS84, height=None, LatLon=LatLon,
**LatLon_kwds):
'''Compute the geographic mean of several points.
@arg points: Points to be averaged (L{LatLon}[]).
@kwarg datum: Optional datum to use (L{Datum}).
@kwarg height: Optional height at mean point, overriding
the mean height (C{meter}).
@kwarg LatLon: Optional class to return the mean point
(L{LatLon}) or C{None}.
@kwarg LatLon_kwds: Optional, additional B{C{LatLon}}
keyword arguments, ignored if
B{C{LatLon=None}}.
@return: Geographic mean point and mean height (B{C{LatLon}})
or a L{LatLon3Tuple}C{(lat, lon, height)} if
B{C{LatLon}} is C{None}.
@raise ValueError: Insufficient number of B{C{points}}.
'''
_, points = _Nvll.points2(points, closed=False)
# geographic mean
m = sumOf(p._N_vector for p in points)
lat, lon, h = m._N_vector.latlonheight
if height is not None:
h = height
if LatLon is None:
r = LatLon3Tuple(lat, lon, h)
else:
kwds = _xkwds(LatLon_kwds, height=h, datum=datum)
r = LatLon(lat, lon, **kwds)
return _xnamed(r, meanOf.__name__)
def toLatLon(self, LatLon=None, **LatLon_height_datum_kwds):
'''Return the geodetic C{(lat, lon, height[, datum])} coordinates.
@kwarg LatLon: Optional class to return C{(lat, lon, height[,
datum])} or C{None}.
@kwarg LatLon_height_datum_kwds: Optional B{C{LatLon}}, B{C{height}},
B{C{datum}} and other keyword arguments.
@return: An instance of C{LatLon}C{(lat, lon, **_height_datum_kwds)}
or if B{C{LatLon}} is C{None}, a L{LatLon3Tuple}C{(lat, lon,
height)} respectively L{LatLon4Tuple}C{(lat, lon, height,
datum)} whether C{datum} is un-/available.
@raise TypeError: Invalid B{C{LatLon}} or B{C{LatLon_height_datum_kwds}}.
'''
kwds = _xkwds(LatLon_height_datum_kwds,
height=self.height,
datum=self.datum) # PYCHOK Ecef9Tuple
d = kwds['datum']
if LatLon is None:
r = LatLon3Tuple(self.lat, self.lon,
kwds['height']) # PYCHOK Ecef9Tuple
if d:
r = r.to4Tuple(d) # checks type(d)
else:
if d is None:
d = kwds.pop['datum']
r = LatLon(self.lat, self.lon, **kwds) # PYCHOK Ecef9Tuple
return self._xnamed(r)
def toNvector(self, **Nvector_datum_kwds): # PYCHOK Datums.WGS84
'''Convert this cartesian to L{Nvector} components,
I{including height}.
@kwarg Nvector_datum_kwds: Optional L{Nvector}, B{C{datum}} and
other keyword arguments, ignored if
B{C{Nvector=None}}. Use
B{C{Nvector=...}} to override this
L{Nvector} class or specify
B{C{Nvector=None}}.
@return: The C{n-vector} components (L{Nvector}) or a
L{Vector4Tuple}C{(x, y, z, h)} if B{C{Nvector=None}}.
@raise TypeError: Invalid B{C{Nvector}}, B{C{datum}} or other
B{C{Nvector_datum_kwds}}.
@example:
>>> from ellipsoidalNvector import LatLon
>>> c = Cartesian(3980581, 97, 4966825)
>>> n = c.toNvector() # (0.62282, 0.000002, 0.78237, +0.24)
'''
kwds = _xkwds(Nvector_datum_kwds, Nvector=Nvector, datum=self.datum)
return CartesianEllipsoidalBase.toNvector(self, **kwds)
def toLatLon(self, datum=None, LatLon=None, **LatLon_kwds):
'''Convert this cartesian to a geodetic (lat-/longitude) point.
@kwarg datum: Optional datum (L{Datum}) or C{None}.
@kwarg LatLon: Optional class to return the geodetic point
(C{LatLon}) or C{None}.
@kwarg LatLon_kwds: Optional, additional B{C{LatLon}}
keyword arguments, ignored if
B{C{LatLon=None}}.
@return: The geodetic point (B{C{LatLon}}) or if B{C{LatLon}}
is C{None}, an L{Ecef9Tuple}C{(x, y, z, lat, lon,
height, C, M, datum)} with C{C} and C{M} if available.
@raise TypeError: Invalid B{C{datum}} or B{C{LatLon_kwds}}.
'''
if datum in (None, self.datum):
r = self.toEcef()
else:
_xinstanceof(Datum, datum=datum)
c = self.convertDatum(datum)
r = c.Ecef(c.datum).reverse(c, M=True)
if LatLon is not None: # class or .classof
r = LatLon(r.lat, r.lon,
**_xkwds(LatLon_kwds, datum=r.datum, height=r.height))
_datum_datum(r.datum, datum or self.datum)
return self._xnamed(r)
def toLatLon(
self,
**LatLon_height_datum_kwds): # PYCHOK height=None, LatLon=LatLon
'''Convert this n-vector to an C{Nvector}-based geodetic point.
@kwarg LatLon_height_datum_kwds: Optional L{LatLon}, B{C{height}},
B{C{datum}} and other keyword arguments,
ignored if B{C{LatLon=None}}. Use
B{C{LatLon=...}} to override this
L{LatLon} class or set B{C{LatLon=None}}.
@return: The geodetic point (L{LatLon}) or a L{LatLon3Tuple}C{(lat,
lon, height)} if B{C{LatLon}} is C{None}.
@raise TypeError: Invalid B{C{LatLon}}, B{C{height}}, B{C{datum}}
or other B{C{LatLon_height_datum_kwds}}.
@example:
>>> v = Nvector(0.5, 0.5, 0.7071)
>>> p = v.toLatLon() # 45.0°N, 45.0°E
'''
kwds = _xkwds(LatLon_height_datum_kwds,
height=self.h,
LatLon=LatLon,
datum=self.datum)
return NvectorBase.toLatLon(self, **kwds) # class or .classof
def toNvector(self, **Nvector_datum_kwds): # PYCHOK signature
'''Convert this point to L{Nvector} components, I{including
height}.
@kwarg Nvector_datum_kwds: Optional L{Nvector}, B{C{datum}} or
other keyword arguments, ignored if
B{C{Nvector=None}}. Use
B{C{Nvector=...}} to override this
L{Nvector} class or specify
B{C{Nvector=None}}.
@return: The C{n-vector} components (L{Nvector}) or a
L{Vector4Tuple}C{(x, y, z, h)} if B{C{Nvector}}
is C{None}.
@raise TypeError: Invalid B{C{Nvector}}, B{C{datum}} or other
B{C{Nvector_datum_kwds}}.
@example:
>>> p = LatLon(45, 45)
>>> n = p.toNvector()
>>> n.toStr() # [0.50, 0.50, 0.70710]
'''
kwds = _xkwds(Nvector_datum_kwds, Nvector=Nvector, datum=self.datum)
return LatLonNvectorBase.toNvector(self, **kwds)
def reverse(self, easting, northing, LatLon=None, **LatLon_kwds):
'''Convert a Cassini-Soldner location to (ellipsoidal) geodetic
lat- and longitude.
@arg easting: Easting of the location (C{meter}).
@arg northing: Northing of the location (C{meter}).
@kwarg LatLon: Optional, ellipsoidal class to return the
geodetic location as (C{LatLon}) or C{None}.
@kwarg LatLon_kwds: Optional (C{LatLon}) keyword arguments,
ignored if B{C{LatLon=None}}.
@return: Geodetic location B{C{LatLon}} or if B{C{LatLon}}
is C{None}, a L{LatLon2Tuple}C{(lat, lon)}.
@raise CSSError: Ellipsoidal mismatch of B{C{LatLon}} and this projection.
@raise TypeError: Invalid B{C{LatLon}} or B{C{LatLon_kwds}}.
@see: Method L{CassiniSoldner.reverse4}, L{CassiniSoldner.forward}
and L{CassiniSoldner.forward4}.
'''
r = self.reverse4(easting, northing)
if LatLon is None:
r = LatLon2Tuple(r.lat, r.lon) # PYCHOK expected
else:
_xsubclassof(_LLEB, LatLon=LatLon)
kwds = _xkwds(LatLon_kwds, datum=self.datum)
r = LatLon(r.lat, r.lon, **kwds) # PYCHOK expected
self._datumatch(r)
return self._xnamed(r)
def toLatLon(self, LatLon, datum=None, **LatLon_kwds):
'''Convert this WM coordinate to a geodetic point.
@arg LatLon: Ellipsoidal class to return the geodetic
point (C{LatLon}).
@kwarg datum: Optional datum for ellipsoidal or C{None}
for spherical B{C{LatLon}} (C{Datum}).
@kwarg LatLon_kwds: Optional, additional B{C{LatLon}}
keyword arguments.
@return: Point of this WM coordinate (B{C{LatLon}}).
@raise TypeError: If B{C{LatLon}} and B{C{datum}} are
incompatible or if B{C{datum}} is not
ellipsoidal.
@example:
>>> w = Wm(448251.795, 5411932.678)
>>> from pygeodesy import sphericalTrigonometry as sT
>>> ll = w.toLatLon(sT.LatLon) # 43°39′11.58″N, 004°01′36.17″E
'''
e = issubclassof(LatLon, _LLEB)
if e and datum:
kwds = _xkwds(LatLon_kwds, datum=datum)
elif not (e or datum): # and LatLon
kwds = LatLon_kwds
datum = None
else:
raise _TypeError(LatLon=LatLon, datum=datum)
r = self.latlon2(datum=datum)
r = LatLon(r.lat, r.lon, **kwds)
return self._xnamed(r)
def _Vector(x, y, z):
n = intersections2.__name__
if Vector is None:
v = Vector3d(x, y, z, name=n)
else:
kwds = _xkwds(Vector_kwds, name=n)
v = Vector(x, y, z, **kwds)
return v
def _latlon4(t, h, n):
if LatLon is None:
r = LatLon4Tuple(t.lat, t.lon, h, t.datum)
else:
kwds = _xkwds(LatLon_kwds, datum=t.datum, height=h)
r = LatLon(t.lat, t.lon, **kwds)
r._iteration = t.iteration # ._iteration for tests
return _xnamed(r, n)
def _toLatLon(self, lat, lon, LatLon, LatLon_kwds):
'''(INTERNAL) Check B{C{LatLon}} and return an instance.
'''
kwds = _xkwds(LatLon_kwds, datum=self.datum)
r = LatLon(lat, lon, **kwds) # handle .classof
B = _LLEB if self.datum.isEllipsoidal else _LLB
_xinstanceof(B, LatLon=r)
return r
def __init__(self, *args, **kwds):
if args: # args override kwds
if len(args) != 1:
t = unstr(self.classname, *args, **kwds)
raise _ValueError(args=len(args), txt=t)
kwds = _xkwds(dict(args[0]), **kwds)
if _name_ in kwds:
_Named.name.fset(self, kwds.pop(_name_)) # see _Named.name
dict.__init__(self, kwds)
def _latlon3(lat, lon, height, func, LatLon, **LatLon_kwds):
'''(INTERNAL) Helper for L{intersection} and L{meanof}.
'''
if LatLon is None:
r = LatLon3Tuple(lat, lon, height)
else:
kwds = _xkwds(LatLon_kwds, height=height)
r = LatLon(lat, lon, **kwds)
return _xnamed(r, func.__name__)
def toWm(latlon, lon=None, radius=R_MA, Wm=Wm, name='', **Wm_kwds):
'''Convert a lat-/longitude point to a WM coordinate.
@arg latlon: Latitude (C{degrees}) or an (ellipsoidal or
spherical) geodetic C{LatLon} point.
@kwarg lon: Optional longitude (C{degrees} or C{None}).
@kwarg radius: Optional earth radius (C{meter}).
@kwarg Wm: Optional class to return the WM coordinate
(L{Wm}) or C{None}.
@kwarg name: Optional name (C{str}).
@kwarg Wm_kwds: Optional, additional B{C{Wm}} keyword
arguments, ignored if B{C{Wm=None}}.
@return: The WM coordinate (B{C{Wm}}) or an
L{EasNorRadius3Tuple}C{(easting, northing, radius)}
if B{C{Wm}} is C{None}.
@raise ValueError: If B{C{lon}} value is missing, if B{C{latlon}}
is not scalar, if B{C{latlon}} is beyond the
valid WM range and L{rangerrors} is set
to C{True} or if B{C{radius}} is invalid.
@example:
>>> p = LatLon(48.8582, 2.2945) # 448251.8 5411932.7
>>> w = toWm(p) # 448252 5411933
>>> p = LatLon(13.4125, 103.8667) # 377302.4 1483034.8
>>> w = toWm(p) # 377302 1483035
'''
e, r = None, Radius(radius)
try:
lat, lon = latlon.lat, latlon.lon
if isinstance(latlon, _LLEB):
r = latlon.datum.ellipsoid.a
e = latlon.datum.ellipsoid.e
if not name: # use latlon.name
name = nameof(latlon)
lat = clipDegrees(lat, _LatLimit)
except AttributeError:
lat, lon = parseDMS2(latlon, lon, clipLat=_LatLimit)
s = sin(radians(lat))
y = atanh(s) # == log(tan((90 + lat) / 2)) == log(tanPI_2_2(radians(lat)))
if e:
y -= e * atanh(e * s)
e, n = r * radians(lon), r * y
if Wm is None:
r = EasNorRadius3Tuple(e, n, r)
else:
kwds = _xkwds(Wm_kwds, radius=r)
r = Wm(e, n, **kwds)
return _xnamed(r, name)
def _latlon5(self, LatLon, **LatLon_kwds):
'''(INTERNAL) Convert cached LatLon
'''
ll = self._latlon
if LatLon is None:
r = LatLonDatum5Tuple(ll.lat, ll.lon, ll.datum, ll.convergence,
ll.scale)
else:
_xsubclassof(_LLEB, LatLon=LatLon)
kwds = _xkwds(LatLon_kwds, datum=ll.datum)
r = _xattrs(LatLon(ll.lat, ll.lon, **kwds), ll, '_convergence',
'_scale')
return _xnamed(r, ll.name)
def toMgrs(utm, Mgrs=Mgrs, name=NN, **Mgrs_kwds):
'''Convert a UTM coordinate to an MGRS grid reference.
@arg utm: A UTM coordinate (L{Utm} or L{Etm}).
@kwarg Mgrs: Optional class to return the MGRS grid
reference (L{Mgrs}) or C{None}.
@kwarg name: Optional B{C{Mgrs}} name (C{str}).
@kwarg Mgrs_kwds: Optional, additional B{C{Mgrs}} keyword
arguments, ignored if B{C{Mgrs=None}}.
@return: The MGRS grid reference (B{L{Mgrs}}) or an
L{Mgrs6Tuple}C{(zone, digraph, easting, northing,
band, datum)} if B{L{Mgrs}} is C{None}.
@raise TypeError: If B{C{utm}} is not L{Utm} nor L{Etm}.
@raise MGRSError: Invalid B{C{utm}}.
@example:
>>> u = Utm(31, 'N', 448251, 5411932)
>>> m = u.toMgrs() # 31U DQ 48251 11932
'''
_xinstanceof(Utm, utm=utm) # Utm, Etm
e, n = utm.to2en(falsed=True)
# truncate east-/northing to within 100 km grid square
# XXX add rounding to nm precision?
E, e = divmod(e, _100km)
N, n = divmod(n, _100km)
# columns in zone 1 are A-H, zone 2 J-R, zone 3 S-Z, then
# repeating every 3rd zone (note -1 because eastings start
# at 166e3 due to 500km false origin)
z = utm.zone - 1
en = (
_Le100k[z % 3][int(E) - 1] +
# rows in even zones are A-V, in odd zones are F-E
_Ln100k[z % 2][int(N) % len(_Ln100k[0])])
if Mgrs is None:
r = Mgrs4Tuple(utm.zone, en, e, n).to6Tuple(utm.band, utm.datum)
else:
kwds = _xkwds(Mgrs_kwds, band=utm.band, datum=utm.datum)
r = Mgrs(utm.zone, en, e, n, **kwds)
return _xnamed(r, name or utm.name)
def toLatLon(self, **LatLon_datum_kwds): # PYCHOK LatLon=LatLon
'''Convert this cartesian point to an C{Nvector}-based
geodetic point.
@kwarg LatLon_datum_kwds: Optional L{LatLon}, B{C{datum}} and
other keyword arguments, ignored if
B{C{LatLon=None}}. Use
B{C{LatLon=...}} to override this
L{LatLon} class or specify
B{C{LatLon=None}}.
@return: The geodetic point (L{LatLon}) or if B{C{LatLon}}
is C{None}, an L{Ecef9Tuple}C{(x, y, z, lat, lon,
height, C, M, datum)} with C{C} and C{M} if available.
@raise TypeError: Invalid B{C{LatLon_datum_kwds}}.
'''
kwds = _xkwds(LatLon_datum_kwds, LatLon=LatLon, datum=self.datum)
return CartesianSphericalBase.toLatLon(self, **kwds)
def toCartesian(self, **Cartesian_datum_kwds): # PYCHOK Cartesian=Cartesian, datum=None
'''Convert this point to C{Karney}-based cartesian (ECEF)
coordinates.
@kwarg Cartesian_datum_kwds: Optional L{Cartesian}, B{C{datum}}
and other keyword arguments, ignored
if B{C{Cartesian=None}}. Use
B{C{Cartesian=...}} to override
this L{Cartesian} class or specify
B{C{Cartesian=None}}.
@return: The cartesian point (L{Cartesian}) or if B{C{Cartesian}}
is C{None}, an L{Ecef9Tuple}C{(x, y, z, lat, lon, height,
C, M, datum)} with C{C} and C{M} if available.
@raise TypeError: Invalid B{C{Cartesian_datum_kwds}}.
'''
kwds = _xkwds(Cartesian_datum_kwds, Cartesian=Cartesian, datum=self.datum)
return LatLonSphericalBase.toCartesian(self, **kwds)
def __init__(self, **kwds): # PYCHOK no *args
kwds = _xkwds(kwds, **_Neighbors8Defaults)
_NamedDict.__init__(self, **kwds) # name=...
def reverse(self, x, y, lon0=0, name=NN, LatLon=None, **LatLon_kwds):
'''Convert an east- and northing location to geodetic lat- and longitude.
@arg x: Easting of the location (C{meter}).
@arg y: Northing of the location (C{meter}).
@kwarg lon0: Optional central meridian longitude (C{degrees}).
@kwarg name: Optional name for the location (C{str}).
@kwarg LatLon: Class to use (C{LatLon}) or C{None}.
@kwarg LatLon_kwds: Optional, additional B{C{LatLon}} keyword
arguments, ignored if B{C{LatLon=None}}.
@return: The geodetic (C{LatLon}) or if B{C{LatLon}} is C{None} an
L{Albers7Tuple}C{(x, y, lat, lon, gamma, scale, datum)}.
@note: The origin latitude is returned by C{property lat0}. No
false easting or northing is added. The returned value of
C{lon} is in the range C{[-180..180] degrees} and C{lat}
is in the range C{[-90..90] degrees}. If the given
B{C{x}} or B{C{y}} point is outside the valid projected
space the nearest pole is returned.
'''
x = Scalar(x, name=_x_)
y = Scalar(y, name=_y_)
E = self.datum.ellipsoid
k0 = self._k0
n0 = self._n0
k0n0 = self._k0n0
nrho0 = self._nrho0
txi0 = self._txi0
y_ = self._sign * y
nx = k0n0 * x
ny = k0n0 * y_
y1 = nrho0 - ny
drho = den = nrho0 + hypot(nx,
y1) # 0 implies origin with polar aspect
if den:
drho = fsum_(x * nx, -2 * y_ * nrho0, y_ * ny) * k0 / den
# dsxia = scxi0 * dsxi
dsxia = -self._scxi0 * (2 * nrho0 + n0 * drho) * drho / self._qZa2
t = 1 - dsxia * (2 * txi0 + dsxia)
txi = (txi0 + dsxia) / (sqrt(t) if t > _EPSX2 else _EPSX)
ta = self._tanf(txi)
lat = degrees(atan(ta * self._sign))
b = atan2(nx, y1)
lon = degrees(b / self._k02n0 if n0 else x / (y1 * k0))
if lon0:
lon += _norm180(_Lon_(lon0, name=_lon0_))
lon = _norm180(lon)
if LatLon is None:
g = degrees360(self._sign * b)
if den:
k0 *= (nrho0 + n0 * drho) * hypot1(E.b_a * ta) / E.a
r = Albers7Tuple(x, y, lat, lon, g, k0, self.datum)
else:
kwds = _xkwds(LatLon_kwds, datum=self.datum)
r = LatLon(lat, lon, **kwds)
return _xnamed(r, name or self.name)