Coverage for pygeodesy/karney.py: 94%

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1 

2# -*- coding: utf-8 -*- 

3 

4u'''Wrapper around several C{geomath.Math} functions from I{Karney}'s Python package U{geographiclib 

5<https://PyPI.org/project/geographiclib>}, provided that package is installed. 

6 

7The I{wrapped} class methods return a L{GDict} instance offering access to the C{dict} items 

8either by C{key} or by C{attribute} name. 

9All methods of the I{wrapped} L{Geodesic<geodesicw.Geodesic>} and L{GeodesicLine<geodesicw.GeodesicLine>} 

10classes return a L{GDict} instance offering access to the C{dict} items either by C{key} or by 

11C{attribute} name. 

12 

13With env variable C{PYGEODESY_GEOGRAPHICLIB} left undefined or set to C{"2"}, modules L{geodesicx}, 

14L{geodesicw} and this module will use U{GeographicLib 2.0<https://GeographicLib.SourceForge.io/C++/doc/>} 

15and newer transcoding, otherwise C{1.52} or older. 

16 

17Karney-based functionality 

18========================== 

19 

201. The following classes and functions in C{pygeodesy} 

21 

22 - L{AlbersEqualArea}, L{AlbersEqualArea2}, L{AlbersEqualArea4}, 

23 L{AlbersEqualAreaCylindrical}, L{AlbersEqualAreaNorth}, L{AlbersEqualAreaSouth} -- 

24 U{AlbersEqualArea<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1AlbersEqualArea.html>} 

25 

26 - L{AuxAngle}, L{AuxDST}, L{AuxDLat}, L{AuxLat} -- U{AuxAngle 

27 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1AuxAngle.html>}, 

28 U{DST<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1DST.html>}, 

29 U{DAuxLatitude<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1DAuxLatitude.html>}, 

30 U{AuxLatitude<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1AuxLatitude.html>} in I{GeographicLib 2.2+} 

31 

32 - L{CassiniSoldner} -- U{CassiniSoldner<https://GeographicLib.SourceForge.io/C++/doc/ 

33 classGeographicLib_1_1CassiniSoldner.html>} 

34 

35 - L{EcefKarney} -- U{Geocentric<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Geocentric.html>} 

36 

37 - L{Elliptic} -- U{EllipticFunction<https://GeographicLib.SourceForge.io/C++/doc/ 

38 classGeographicLib_1_1EllipticFunction.html>} 

39 

40 - L{EquidistantExact}, L{EquidistantGeodSolve}, L{EquidistantKarney} -- U{AzimuthalEquidistant 

41 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1AzimuthalEquidistant.html>} 

42 

43 - L{Etm}, L{ExactTransverseMercator} -- U{TransverseMercatorExact 

44 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1TransverseMercatorExact.html>} 

45 

46 - L{Geodesic}, L{GeodesicLine} -- I{wrapped} U{geodesic.Geodesic<https://PyPI.org/project/geographiclib>}, 

47 I{wrapped} U{geodesicline.GeodesicLine<https://PyPI.org/project/geographiclib>} 

48 

49 - L{GeodesicAreaExact}, L{PolygonArea} -- U{PolygonArea<https://GeographicLib.SourceForge.io/C++/doc/ 

50 classGeographicLib_1_1PolygonAreaT.html>} 

51 

52 - L{GeodesicExact}, L{GeodesicLineExact} -- U{GeodesicExact<https://GeographicLib.SourceForge.io/C++/doc/ 

53 classGeographicLib_1_1GeodesicExact.html>}, U{GeodesicLineExact<https://GeographicLib.SourceForge.io/C++/doc/ 

54 classGeographicLib_1_1GeodesicLineExact.html>} 

55 

56 - L{GeoidKarney} -- U{Geoid<https://GeographicLib.SourceForge.io/C++/doc/geoid.html>} 

57 

58 - L{Georef} -- U{Georef<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Georef.html>} 

59 

60 - L{GnomonicExact}, L{GnomonicGeodSolve}, L{GnomonicKarney} -- U{Gnomonic 

61 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Gnomonic.html>} 

62 

63 - L{JacobiConformal} -- U{JacobiConformal 

64 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1JacobiConformal.html#details>} 

65 

66 - L{KTransverseMercator} - U{TransverseMercator 

67 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1TransverseMercator.html>} 

68 

69 - L{LocalCartesian}, L{Ltp} -- U{LocalCartesian<https://GeographicLib.SourceForge.io/C++/doc/ 

70 classGeographicLib_1_1LocalCartesian.html>} 

71 

72 - L{Osgr} -- U{OSGB<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1OSGB.html>} 

73 

74 - L{rhumb.aux_}, L{RhumbAux}, L{RhumbLineAux} -- U{Rhumb 

75 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Rhumb.html>} and U{RhumbLine 

76 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1RhumbLine.html>} from I{GeographicLib 2.2+} 

77 

78 - L{rhumb.ekx}, L{Rhumb}, L{RhumbLine} -- U{Rhumb 

79 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Rhumb.html>}, 

80 U{RhumbLine<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1RhumbLine.html>}, 

81 U{TransverseMercator<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1TransverseMercator.html>} 

82 from I{GeographicLib 2.0} 

83 

84 - L{Ups} -- U{PolarStereographic<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1PolarStereographic.html>} 

85 

86 - L{Utm} -- U{TransverseMercator<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1TransverseMercator.html>} 

87 

88 - L{UtmUps}, L{Epsg} -- U{UTMUPS<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1UTMUPS.html>} 

89 

90 - L{atan1d}, L{atan2d}, L{sincos2}, L{sincos2d}, L{tand} -- U{geomath.Math 

91 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1Math.html>} 

92 

93are I{transcoded} from C++ classes in I{Karney}'s U{GeographicLib<https://GeographicLib.SourceForge.io/C++/doc/annotated.html>}. 

94 

952. These C{pygeodesy} modules and classes 

96 

97 - L{ellipsoidalGeodSolve}, L{ellipsoidalKarney}, L{geodsolve}, L{karney}, L{rhumb.solve} 

98 - L{EquidistantKarney}, L{FrechetKarney}, L{GeodesicSolve}, L{GeodesicLineSolve}, L{GnomonicGeodSolve}, 

99 L{GnomonicKarney}, L{HeightIDWkarney} 

100 

101are or use I{wrappers} around I{Karney}'s Python U{geographiclib<https://PyPI.org/project/geographiclib>} 

102C{geodesic}, C++ utility U{GeodSolve<https://GeographicLib.SourceForge.io/C++/doc/GeodSolve.1.html>} or 

103C++ utility U{RhumbSolve<https://GeographicLib.SourceForge.io/C++/doc/RhumbSolve.1.html>}. 

104 

1053. All C{pygeodesy} functions and methods to compute I{ellipsoidal} intersections, nearest points and trilaterations 

106 

107 - L{ellipsoidalExact.intersection3}, L{ellipsoidalExact.intersections2}, L{ellipsoidalExact.nearestOn}, 

108 L{ellipsoidalExact.LatLon.intersection3}, L{ellipsoidalExact.LatLon.intersections2}, 

109 L{ellipsoidalExact.LatLon.nearestOn}, L{ellipsoidalExact.LatLon.trilaterate5} 

110 

111 - L{ellipsoidalKarney.intersection3}, L{ellipsoidalKarney.intersections2}, L{ellipsoidalKarney.nearestOn}, 

112 L{ellipsoidalKarney.LatLon.intersection3}, L{ellipsoidalKarney.LatLon.intersections2}, 

113 L{ellipsoidalKarney.LatLon.nearestOn}, L{ellipsoidalKarney.LatLon.trilaterate5} 

114 

115 - L{ellipsoidalVincenty.intersection3}, L{ellipsoidalVincenty.intersections2}, L{ellipsoidalVincenty.nearestOn}, 

116 L{ellipsoidalVincenty.LatLon.intersection3}, L{ellipsoidalVincenty.LatLon.intersections2}, 

117 L{ellipsoidalVincenty.LatLon.nearestOn}, L{ellipsoidalVincenty.LatLon.trilaterate5} 

118 

119 - L{RhumbLineAux.Intersection} and L{RhumbLine.Intersection} 

120 

121are implementations of I{Karney}'s iterative solution posted under U{The B{ellipsoidal} case 

122<https://GIS.StackExchange.com/questions/48937/calculating-intersection-of-two-circles>} and in paper U{Geodesics 

123on an ellipsoid of revolution<https://ArXiv.org/pdf/1102.1215.pdf>} (pp 20-21, section B{14. MARITIME BOUNDARIES}). 

124 

1254. The C{pygeodesy} methods to compute I{ellipsoidal} intersections and nearest points 

126 

127 - L{RhumbLineAux.Intersecant2}, L{RhumbLineAux.PlumbTo}, L{RhumbLine.Intersecant2} and L{RhumbLine.PlumbTo} 

128 

129are I{transcoded} of I{Karney}'s iterative C++ function U{rhumb-intercept 

130<https://SourceForge.net/p/geographiclib/discussion/1026620/thread/2ddc295e/>}. 

131 

1325. Spherical functions 

133 

134 - L{pygeodesy.excessKarney_}, L{sphericalTrigonometry.areaOf} 

135 

136in C{pygeodesy} are based on I{Karney}'s post U{Area of a spherical polygon 

137<https://MathOverflow.net/questions/97711/the-area-of-spherical-polygons>}, 3rd Answer. 

138''' 

139# make sure int/int division yields float quotient, see .basics 

140from __future__ import division as _; del _ # PYCHOK semicolon 

141 

142from pygeodesy.basics import _copysign, int1s, isint, neg, unsigned0, \ 

143 _xgeographiclib, _xImportError, _xversion_info, \ 

144 _xinstanceof, _zip, isodd # PYCHOK shared 

145from pygeodesy.constants import NAN, _isfinite as _math_isfinite, _0_0, \ 

146 _1_16th, _1_0, _2_0, _180_0, _N_180_0, _360_0 

147from pygeodesy.errors import GeodesicError, itemsorted, _ValueError, _xkwds, \ 

148 _xkwds_get 

149from pygeodesy.fmath import cbrt, fremainder, hypot as _hypot, norm2, \ 

150 euclid, Fsum, unstr # PYCHOK shared 

151# from pygeodesy.fsums import Fsum # from .fmath 

152from pygeodesy.interns import NN, _2_, _a12_, _area_, _azi2_, _azi12_, \ 

153 _composite_, _lat1_, _lat2_, _lon1_, _lon2_, \ 

154 _m12_, _M12_, _M21_, _number_, _s12_, _S12_, \ 

155 _UNDER_, _BAR_ # PYCHOK used! 

156from pygeodesy.lazily import _ALL_DOCS, _ALL_LAZY, _ALL_MODS as _MODS, _getenv 

157from pygeodesy.named import ADict, _NamedBase, _NamedTuple, notImplemented, _Pass 

158from pygeodesy.props import deprecated_method, Property_RO, property_RO # PYCHOK shared 

159# from pygeodesy.streps import unstr # from .fmath 

160from pygeodesy.units import Bearing as _Azi, Degrees as _Deg, Lat, Lon, \ 

161 Meter as _M, Meter2 as _M2, Number_, \ 

162 Precision_, _1mm as _TOL_M # PYCHOK shared 

163from pygeodesy.utily import atan2d, sincos2d, tand, _unrollon, fabs 

164 

165# from math import fabs # from .utily 

166 

167__all__ = _ALL_LAZY.karney 

168__version__ = '24.02.02' 

169 

170_K_2_0 = _getenv('PYGEODESY_GEOGRAPHICLIB', _2_) == _2_ 

171_perimeter_ = 'perimeter' 

172 

173 

174class _GTuple(_NamedTuple): # in .testNamedTuples 

175 '''(INTERNAL) Helper. 

176 ''' 

177 def toGDict(self, **updates): 

178 '''Convert this C{*Tuple} to a L{GDict}. 

179 

180 @kwarg updates: Optional items to apply (C{nam=value} pairs) 

181 ''' 

182 r = GDict(_zip(self._Names_, self)) # strict=True 

183 if updates: 

184 r.update(updates) 

185 if self._iteration is not None: 

186 r._iteration = self._iteration 

187 return r 

188 

189 

190class _Lat(Lat): 

191 '''(INTERNAL) Latitude B{C{lat}}. 

192 ''' 

193 def __init__(self, *lat, **Error_name): 

194 kwds = _xkwds(Error_name, clip=0, Error=GeodesicError) 

195 Lat.__new__(_Lat, *lat, **kwds) 

196 

197 

198class _Lon(Lon): 

199 '''(INTERNAL) Longitude B{C{lon}}. 

200 ''' 

201 def __init__(self, *lon, **Error_name): 

202 kwds = _xkwds(Error_name, clip=0, Error=GeodesicError) 

203 Lon.__new__(_Lon, *lon, **kwds) 

204 

205 

206class Area3Tuple(_NamedTuple): # in .geodesicx.gxarea 

207 '''3-Tuple C{(number, perimeter, area)} with the C{number} 

208 of points of the polygon or polyline, the C{perimeter} in 

209 C{meter} and the C{area} in C{meter} I{squared}. 

210 ''' 

211 _Names_ = (_number_, _perimeter_, _area_) 

212 _Units_ = ( Number_, _M, _M2) 

213 

214 

215class Caps(object): # PYCHOK 

216 '''(INTERNAL) Overriden by C{Caps} below. 

217 ''' 

218 EMPTY = 0 # formerly aka NONE 

219 _CAP_1 = 1 << 0 # for goedesicw only 

220 _CAP_1p = 1 << 1 # for goedesicw only 

221# _CAP_2 = 1 << 2 

222 _CAP_3 = 1 << 3 # for goedesicw only 

223# _CAP_4 = 1 << 4 

224# _CAP_ALL = 0x1F 

225# _CAP_MASK = _CAP_ALL 

226 LATITUDE = 1 << 7 # compute latitude C{lat2} 

227 LONGITUDE = 1 << 8 # compute longitude C{lon2} _CAP_3 

228 AZIMUTH = 1 << 9 # azimuths C{azi1} and C{azi2} 

229 DISTANCE = 1 << 10 # compute distance C{s12} _CAP_1 

230 DISTANCE_IN = 1 << 11 # allow distance C{s12} in Direct _CAP_1 | _CAP_1p 

231 REDUCEDLENGTH = 1 << 12 # compute reduced length C{m12} _CAP_1 | _CAP_2 

232 GEODESICSCALE = 1 << 13 # compute geodesic scales C{M12} and C{M21} _CAP_1 | _CAP_2 

233 AREA = 1 << 14 # compute area C{S12} _CAP_4 

234 

235 STANDARD = AZIMUTH | DISTANCE | DISTANCE_IN | LATITUDE | LONGITUDE 

236 ALL = 0x7F80 # without LONG_UNROLL, LINE_OFF, REVERSE2 and _DEBUG_* 

237 

238 _DIRECT3 = AZIMUTH | LATITUDE | LONGITUDE | _CAP_3 # for goedesicw only 

239 _INVERSE3 = AZIMUTH | DISTANCE | _CAP_1 # for goedesicw only 

240 _STD = STANDARD | _CAP_3 | _CAP_1 # for goedesicw only 

241 _STD_LINE = _STD | _CAP_1p # for goedesicw only 

242 

243 LINE_OFF = 1 << 15 # Line without updates from parent geodesic or rhumb 

244 LONG_UNROLL = 1 << 16 # unroll C{lon2} in .Direct and .Position 

245 REVERSE2 = 1 << 17 # reverse C{azi2} 

246 

247 LATITUDE_LONGITUDE = LATITUDE | LONGITUDE 

248 LATITUDE_LONGITUDE_AREA = LATITUDE | LONGITUDE | AREA 

249 

250 AZIMUTH_DISTANCE = AZIMUTH | DISTANCE 

251 AZIMUTH_DISTANCE_AREA = AZIMUTH | DISTANCE | AREA 

252 

253 _ANGLE_ONLY = 1 << 18 # angular distance C{a12} only 

254 _SALPs_CALPs = 1 << 19 # (INTERNAL) GeodesicExact._GenInverse 

255 

256 _DEBUG_AREA = 1 << 20 # (INTERNAL) include Line details 

257 _DEBUG_DIRECT = 1 << 21 # (INTERNAL) include Direct details 

258 _DEBUG_INVERSE = 1 << 22 # (INTERNAL) include Inverse details 

259 _DEBUG_LINE = 1 << 23 # (INTERNAL) include Line details 

260 _DEBUG_ALL = _DEBUG_AREA | _DEBUG_DIRECT | _DEBUG_INVERSE | \ 

261 _DEBUG_LINE | _ANGLE_ONLY | _SALPs_CALPs 

262 

263 _OUT_ALL = ALL 

264 _OUT_MASK = ALL | LONG_UNROLL | REVERSE2 | _DEBUG_ALL 

265 

266 _AZIMUTH_LATITUDE_LONGITUDE = AZIMUTH | LATITUDE | LONGITUDE 

267 _DEBUG_DIRECT_LINE = _DEBUG_DIRECT | _DEBUG_LINE 

268# _DISTANCE_IN_OUT = DISTANCE_IN & _OUT_MASK # == DISTANCE_IN in .gx, .gxline 

269 _LINE = AZIMUTH | LATITUDE | LONG_UNROLL 

270 _REDUCEDLENGTH_GEODESICSCALE = REDUCEDLENGTH | GEODESICSCALE 

271# _REDUCEDLENGTH_GEODESICSCALE_DISTANCE = REDUCEDLENGTH | GEODESICSCALE | DISTANCE 

272 

273 def toStr(self, Csk, sep=_BAR_): 

274 '''Return a C{Caps} or C{outmask} as C{str} or tuple of C{str}s. 

275 ''' 

276 s = [] 

277 for c, C in itemsorted(self.__class__.__dict__): 

278 if isint(C) and (Csk & C) and int1s(C) == 1 \ 

279 and (C in (Caps.REVERSE2, Caps._SALPs_CALPs) 

280 or c.replace(_UNDER_, NN).isupper()): 

281 s.append(c) 

282 return sep.join(s) if sep else tuple(s) 

283 

284Caps = Caps() # PYCHOK singleton 

285'''I{Enum}-style masks to be bit-C{or}'ed to specify geodesic or 

286rhumb capabilities (C{caps}) and expected results (C{outmask}). 

287 

288C{AREA} - compute area C{S12}, 

289 

290C{AZIMUTH} - include azimuths C{azi1} and C{azi2}, 

291 

292C{DISTANCE} - compute distance C{s12}, 

293 

294C{DISTANCE_IN} - allow distance C{s12} in C{.Direct}, 

295 

296C{EMPTY} - nothing, formerly aka C{NONE}, 

297 

298C{GEODESICSCALE} - compute geodesic scales C{M12} and C{M21}, 

299 

300C{LATITUDE} - compute latitude C{lat2}, 

301 

302C{LINE_OFF} - Line without updates from parent geodesic or rhumb. 

303 

304C{LONGITUDE} - compute longitude C{lon2}, 

305 

306C{LONG_UNROLL} - unroll C{lon2} in C{.Direct}, 

307 

308C{REDUCEDLENGTH} - compute reduced length C{m12}, 

309 

310C{REVERSE2} - reverse C{azi2}, 

311 

312and C{ALL} - all of the above. 

313 

314C{STANDARD} = C{AZIMUTH | DISTANCE | DISTANCE_IN | LATITUDE | LONGITUDE}''' 

315 

316 

317class _CapsBase(_NamedBase): # in .auxilats, .geodesicx.gxbases 

318 '''(INTERNAL) Base class for C{[_]Geodesic*Exact}. 

319 ''' 

320 ALL = Caps.ALL 

321 AREA = Caps.AREA 

322 AZIMUTH = Caps.AZIMUTH 

323 DISTANCE = Caps.DISTANCE 

324 DISTANCE_IN = Caps.DISTANCE_IN 

325 EMPTY = Caps.EMPTY # aka NONE 

326 GEODESICSCALE = Caps.GEODESICSCALE 

327 LATITUDE = Caps.LATITUDE 

328 LINE_OFF = Caps.LINE_OFF 

329 LONGITUDE = Caps.LONGITUDE 

330 LONG_UNROLL = Caps.LONG_UNROLL 

331 REDUCEDLENGTH = Caps.REDUCEDLENGTH 

332 STANDARD = Caps.STANDARD 

333 

334 _caps = 0 # None 

335 _debug = 0 # or Caps._DEBUG_... 

336 

337 @Property_RO 

338 def caps(self): 

339 '''Get the capabilities (bit-or'ed C{Caps}). 

340 ''' 

341 return self._caps 

342 

343 def caps_(self, caps): 

344 '''Check the available capabilities. 

345 

346 @arg caps: Bit-or'ed combination of L{Caps} values 

347 for all capabilities to be checked. 

348 

349 @return: C{True} if I{all} B{C{caps}} are available, 

350 C{False} otherwise (C{bool}). 

351 ''' 

352 caps &= Caps._OUT_ALL 

353 return (self.caps & caps) == caps 

354 

355 @property 

356 def debug(self): 

357 '''Get the C{debug} option (C{bool}). 

358 ''' 

359 return bool(self._debug) 

360 

361 @debug.setter # PYCHOK setter! 

362 def debug(self, debug): 

363 '''Set the C{debug} option (C{bool}) to include 

364 more details in L{GDict} results. 

365 ''' 

366 self._debug = Caps._DEBUG_ALL if debug else 0 

367 

368 def _iter2tion(self, r, s): 

369 '''(INTERNAL) Copy C{C{s}.iter} into C{B{r}._iteration}. 

370 ''' 

371 i = _xkwds_get(s, iter=None) 

372 if i is not None: 

373 self._iteration = r._iteration = i 

374 return r 

375 

376 

377class Direct9Tuple(_GTuple): 

378 '''9-Tuple C{(a12, lat2, lon2, azi2, s12, m12, M12, M21, S12)} with arc 

379 length C{a12}, angles C{lat2}, C{lon2} and azimuth C{azi2} in C{degrees}, 

380 distance C{s12} and reduced length C{m12} in C{meter} and area C{S12} in 

381 C{meter} I{squared}. 

382 ''' 

383 _Names_ = (_a12_, _lat2_, _lon2_, _azi2_, _s12_, _m12_, _M12_, _M21_, _S12_) 

384 _Units_ = (_Azi, _Lat, _Lon, _Azi, _M, _Pass, _Pass, _Pass, _M2) 

385 

386 

387class GDict(ADict): # XXX _NamedDict 

388 '''A C{dict} with both C{key} I{and} C{attribute} access to the C{dict} items. 

389 

390 Results of all C{geodesic} and C{rhumb} methods (with capitalized named) are 

391 returned as L{GDict} instances, see for example L{GeodesicExact} and L{RhumbAux}. 

392 ''' 

393 def toDirect9Tuple(self, dflt=NAN): 

394 '''Convert this L{GDict} result to a 9-tuple, like I{Karney}'s method 

395 C{geographiclib.geodesic.Geodesic._GenDirect}. 

396 

397 @kwarg dflt: Default value for missing items (C{any}). 

398 

399 @return: L{Direct9Tuple}C{(a12, lat2, lon2, azi2, 

400 s12, m12, M12, M21, S12)} 

401 ''' 

402 return self._toTuple(Direct9Tuple, dflt) 

403 

404 def toGeodSolve12Tuple(self, dflt=NAN): # PYCHOK 12 args 

405 '''Convert this L{GDict} result to a 12-Tuple, compatible with I{Karney}'s 

406 U{GeodSolve<https://GeographicLib.SourceForge.io/C++/doc/GeodSolve.1.html>} 

407 result. 

408 

409 @kwarg dflt: Default value for missing items (C{any}). 

410 

411 @return: L{GeodSolve12Tuple}C{(lat1, lon1, azi1, lat2, lon2, azi2, 

412 s12, a12, m12, M12, M21, S12)}. 

413 ''' 

414 return self._toTuple(_MODS.geodsolve.GeodSolve12Tuple, dflt) 

415 

416 def toInverse10Tuple(self, dflt=NAN): 

417 '''Convert this L{GDict} result to a 10-tuple, like I{Karney}'s 

418 method C{geographiclib.geodesic.Geodesic._GenInverse}. 

419 

420 @kwarg dflt: Default value for missing items (C{any}). 

421 

422 @return: L{Inverse10Tuple}C{(a12, s12, salp1, calp1, 

423 salp2, calp2, m12, M12, M21, S12)}. 

424 ''' 

425 return self._toTuple(Inverse10Tuple, dflt) 

426 

427 @deprecated_method 

428 def toRhumb7Tuple(self, dflt=NAN): # PYCHOK no cover 

429 '''DEPRECATED, used method C{toRhumb8Tuple}. 

430 

431 @return: A I{DEPRECATED} L{Rhumb7Tuple}. 

432 ''' 

433 return self._toTuple(_MODS.deprecated.classes.Rhumb7Tuple, dflt) 

434 

435 def toRhumb8Tuple(self, dflt=NAN): 

436 '''Convert this L{GDict} result to a 8-tuple. 

437 

438 @kwarg dflt: Default value for missing items (C{any}). 

439 

440 @return: L{Rhumb8Tuple}C{(lat1, lon1, lat2, lon2, 

441 azi12, s12, S12, a12)}. 

442 ''' 

443 return self._toTuple(Rhumb8Tuple, dflt) 

444 

445 def toRhumbSolve7Tuple(self, dflt=NAN): 

446 '''Convert this L{GDict} result to a 8-tuple. 

447 

448 @kwarg dflt: Default value for missing items (C{any}). 

449 

450 @return: L{RhumbSolve7Tuple}C{(lat1, lon1, lat2, lon2, 

451 azi12, s12, S12)}. 

452 ''' 

453 return self._toTuple(_MODS.rhumb.solve.RhumbSolve7Tuple, dflt) 

454 

455 def _toTuple(self, nTuple, dflt): 

456 '''(INTERNAL) Convert this C{GDict} to an B{C{nTuple}}. 

457 ''' 

458 _g = getattr 

459 t = tuple(_g(self, n, dflt) for n in nTuple._Names_) 

460 return nTuple(t, iteration=self._iteration) 

461 

462 

463class Inverse10Tuple(_GTuple): 

464 '''10-Tuple C{(a12, s12, salp1, calp1, salp2, calp2, m12, M12, M21, S12)} with arc length 

465 C{a12} in C{degrees}, distance C{s12} and reduced length C{m12} in C{meter}, area 

466 C{S12} in C{meter} I{squared} and the sines C{salp1}, C{salp2} and cosines C{calp1}, 

467 C{calp2} of the initial C{1} and final C{2} (forward) azimuths. 

468 ''' 

469 _Names_ = (_a12_, _s12_, 'salp1', 'calp1', 'salp2', 'calp2', _m12_, _M12_, _M21_, _S12_) 

470 _Units_ = (_Azi, _M, _Pass, _Pass, _Pass, _Pass, _Pass, _Pass, _Pass, _M2) 

471 

472 def toGDict(self, **updates): 

473 '''Convert this C{Inverse10Tuple} to a L{GDict}. 

474 

475 @kwarg updates: Optional items to apply (C{nam=value} pairs) 

476 ''' 

477 return _GTuple.toGDict(self, azi1=atan2d(self.salp1, self.calp1), # PYCHOK indent, namedTuple 

478 azi2=atan2d(self.salp2, self.calp2), # PYCHOK namedTuple 

479 **updates) # PYCHOK indent 

480 

481 

482class _kWrapped(object): # in .geodesicw 

483 ''''(INTERNAL) Wrapper around I{Karney}'s U{geographiclib 

484 <https://PyPI.org/project/geographiclib>}. 

485 ''' 

486 

487 @Property_RO 

488 def geographiclib(self): 

489 '''Lazily import C{geographiclib}, provided the U{geographiclib 

490 <https://PyPI.org/project/geographiclib>} package is installed, 

491 otherwise a C{LazyImportError}. 

492 ''' 

493 g = _xgeographiclib(self.__class__, 1, 49) 

494 from geographiclib.geodesic import Geodesic 

495 g.Geodesic = Geodesic 

496 from geographiclib.geodesicline import GeodesicLine 

497 g.GeodesicLine = GeodesicLine 

498 from geographiclib.geomath import Math 

499 g.Math = Math 

500 return g 

501 

502 @Property_RO 

503 def Math(self): 

504 '''Wrap the C{geomath.Math} class, provided the U{geographiclib 

505 <https://PyPI.org/project/geographiclib>} package is installed, 

506 otherwise C{None}. 

507 ''' 

508 try: 

509 g = self.geographiclib 

510 M = g.Math 

511 if _xversion_info(g) < (2,): 

512 if _K_2_0: 

513 M = None 

514# elif not _K_2_0: # XXX set 2.0? 

515# _K_2_0 = True 

516 except (AttributeError, ImportError): 

517 M = None 

518 return M 

519 

520_wrapped = _kWrapped() # PYCHOK singleton, .datum, .test/base.py 

521 

522 

523class Rhumb8Tuple(_GTuple): 

524 '''8-Tuple C{(lat1, lon1, lat2, lon2, azi12, s12, S12, a12)} with lat- C{lat1}, 

525 C{lat2} and longitudes C{lon1}, C{lon2} of both points, the azimuth of the 

526 rhumb line C{azi12}, the distance C{s12}, the area C{S12} under the rhumb 

527 line and the angular distance C{a12} between both points. 

528 ''' 

529 _Names_ = (_lat1_, _lon1_, _lat2_, _lon2_, _azi12_, _s12_, _S12_, _a12_) 

530 _Units_ = ( Lat, Lon, Lat, Lon, _Azi, _M, _M2, _Deg) 

531 

532 def toDirect9Tuple(self, dflt=NAN, **a12_azi1_azi2_m12_M12_M21): 

533 '''Convert this L{Rhumb8Tuple} result to a 9-tuple, like I{Karney}'s 

534 method C{geographiclib.geodesic.Geodesic._GenDirect}. 

535 

536 @kwarg dflt: Default value for missing items (C{any}). 

537 @kwarg a12_azi1_azi2_m12_M12_M21: Optional keyword arguments 

538 to specify or override L{Inverse10Tuple} items. 

539 

540 @return: L{Direct9Tuple}C{(a12, lat2, lon2, azi2, s12, 

541 m12, M12, M21, S12)} 

542 ''' 

543 d = dict(azi1=self.azi12, M12=_1_0, m12=self.s12, # PYCHOK attr 

544 azi2=self.azi12, M21=_1_0) # PYCHOK attr 

545 if a12_azi1_azi2_m12_M12_M21: 

546 d.update(a12_azi1_azi2_m12_M12_M21) 

547 return self._toTuple(Direct9Tuple, dflt, d) 

548 

549 def toInverse10Tuple(self, dflt=NAN, **a12_m12_M12_M21_salp1_calp1_salp2_calp2): 

550 '''Convert this L{Rhumb8Tuple} to a 10-tuple, like I{Karney}'s 

551 method C{geographiclib.geodesic.Geodesic._GenInverse}. 

552 

553 @kwarg dflt: Default value for missing items (C{any}). 

554 @kwarg a12_m12_M12_M21_salp1_calp1_salp2_calp2: Optional keyword 

555 arguments to specify or override L{Inverse10Tuple} items. 

556 

557 @return: L{Inverse10Tuple}C{(a12, s12, salp1, calp1, salp2, calp2, 

558 m12, M12, M21, S12)}. 

559 ''' 

560 s, c = sincos2d(self.azi12) # PYCHOK attr 

561 d = dict(salp1=s, calp1=c, M12=_1_0, m12=self.s12, # PYCHOK attr 

562 salp2=s, calp2=c, M21=_1_0) 

563 if a12_m12_M12_M21_salp1_calp1_salp2_calp2: 

564 d.update(a12_m12_M12_M21_salp1_calp1_salp2_calp2) 

565 return self._toTuple(Inverse10Tuple, dflt, d) 

566 

567 def _toTuple(self, nTuple, dflt, updates={}): 

568 '''(INTERNAL) Convert this C{Rhumb8Tuple} to an B{C{nTuple}}. 

569 ''' 

570 _g = self.toGDict(**updates).get 

571 t = tuple(_g(n, dflt) for n in nTuple._Names_) 

572 return nTuple(t, name=self.name) 

573 

574 @deprecated_method 

575 def _to7Tuple(self): 

576 '''DEPRECATED, do not use!''' 

577 return _MODS.deprecated.classes.Rhumb7Tuple(self[:-1]) 

578 

579 

580def _around(x): # in .utily.sincos2d 

581 '''I{Coarsen} a scalar by rounding small values to underflow to C{0.0}. 

582 

583 @return: Coarsened value (C{float}). 

584 

585 @see: I{Karney}'s U{geomath.Math.AngRound<https://SourceForge.net/p/ 

586 geographiclib/code/ci/release/tree/python/geographiclib/geomath.py>} 

587 ''' 

588 try: 

589 return _wrapped.Math.AngRound(x) 

590 except AttributeError: 

591 if x: 

592 y = _1_16th - fabs(x) 

593 if y > 0: # fabs(x) < _1_16th 

594 x = _copysign(_1_16th - y, x) 

595 else: 

596 x = _0_0 # -0 to 0 

597 return x 

598 

599 

600def _atan2d(y, x): 

601 '''Return C{atan2(B{y}, B{x})} in C{degrees}. 

602 ''' 

603 try: 

604 return _wrapped.Math.atan2d(y, x) 

605 except AttributeError: 

606 return atan2d(y, x) 

607 

608 

609def _cbrt(x): 

610 '''Return C{cubic root(B{x})}. 

611 ''' 

612 try: 

613 return _wrapped.Math.cbrt(x) 

614 except AttributeError: 

615 return cbrt(x) 

616 

617 

618def _copyBit(x, y): 

619 '''Like C{copysign0(B{x}, B{y})}, with C{B{x} > 0}. 

620 ''' 

621 return (-x) if _signBit(y) else x 

622 

623 

624def _2cos2x(cx, sx): # in .auxDST, .auxLat, .gxbases 

625 '''Return M{2 * cos(2 * x)} from cos(x) and sin(x). 

626 ''' 

627 r = cx - sx 

628 if r: 

629 r *= (cx + sx) * _2_0 

630 return r 

631 

632 

633def _diff182(deg0, deg, K_2_0=False): 

634 '''Compute C{deg - deg0}, reduced to C{[-180,180]} accurately. 

635 

636 @return: 2-Tuple C{(delta_angle, residual)} in C{degrees}. 

637 ''' 

638 try: 

639 return _wrapped.Math.AngDiff(deg0, deg) 

640 except AttributeError: 

641 if K_2_0 or _K_2_0: # geographiclib 2.0 

642 _r, _360 = fremainder, _360_0 

643 d, t = _sum2(_r(-deg0, _360), 

644 _r( deg, _360)) 

645 d, t = _sum2(_r( d, _360), t) 

646 if d in (_0_0, _180_0, _N_180_0): 

647 d = _copysign(d, -t if t else (deg - deg0)) 

648 else: 

649 _n = _norm180 

650 d, t = _sum2(_n(-deg0), _n(deg)) 

651 d = _n(d) 

652 if t > 0 and d == _180_0: 

653 d = _N_180_0 

654 d, t = _sum2(d, t) 

655 return d, t 

656 

657 

658def _fix90(deg): # mimick Math.LatFix 

659 '''Replace angle in C{degrees} outside [-90,90] by NAN. 

660 

661 @return: Angle C{degrees} or NAN. 

662 ''' 

663 try: 

664 return _wrapped.Math.LatFix(deg) 

665 except AttributeError: 

666 return NAN if fabs(deg) > 90 else deg 

667 

668 

669def _isfinite(x): # mimick geomath.Math.isfinite 

670 '''Check finiteness of C{x}. 

671 

672 @return: C{True} if finite. 

673 ''' 

674 try: 

675 return _wrapped.Math.isfinite(x) 

676 except AttributeError: 

677 return _math_isfinite(x) # and fabs(x) <= _MAX 

678 

679 

680def _norm2(x, y): # mimick geomath.Math.norm 

681 '''Normalize C{B{x}} and C{B{y}}. 

682 

683 @return: 2-Tuple of C{(B{x}, B{y})}, normalized. 

684 ''' 

685 try: 

686 return _wrapped.Math.norm(x, y) 

687 except AttributeError: 

688 return norm2(x, y) 

689 

690 

691def _norm180(deg): # mimick geomath.Math.AngNormalize 

692 '''Reduce angle in C{degrees} to (-180,180]. 

693 

694 @return: Reduced angle C{degrees}. 

695 ''' 

696 try: 

697 return _wrapped.Math.AngNormalize(deg) 

698 except AttributeError: 

699 d = fremainder(deg, _360_0) 

700 if d in (_180_0, _N_180_0): 

701 d = _copysign(_180_0, deg) if _K_2_0 else _180_0 

702 return d 

703 

704 

705def _polygon(geodesic, points, closed, line, wrap): 

706 '''(INTERNAL) Compute the area or perimeter of a polygon, 

707 using a L{GeodesicExact}, L{GeodesicSolve} or (if the 

708 C{geographiclib} package is installed) a C{Geodesic} 

709 or C{geodesicw.Geodesic} instance. 

710 ''' 

711 if not wrap: # capability LONG_UNROLL can't be off 

712 notImplemented(None, wrap=wrap, up=3) 

713 

714 if _MODS.booleans.isBoolean(points): 

715 # recursive call for each boolean clip 

716 

717 def _a_p(clip, *args, **unused): 

718 return _polygon(geodesic, clip, *args) 

719 

720 if not closed: # closed only 

721 raise _ValueError(closed=closed, points=_composite_) 

722 

723 return points._sum1(_a_p, closed, line, wrap) 

724 

725 gP = geodesic.Polygon(line) 

726 _A = gP.AddPoint 

727 

728 Ps = _MODS.iters.PointsIter(points, loop=1, wrap=wrap) # base=LatLonEllipsoidalBase(0, 0) 

729 p1 = p0 = Ps[0] 

730 

731 # note, lon deltas are unrolled, by default 

732 _A(p1.lat, p1.lon) 

733 for p2 in Ps.iterate(closed=closed): 

734 if wrap and not Ps.looped: 

735 p2 = _unrollon(p1, p2) 

736 _A(p2.lat, p2.lon) 

737 p1 = p2 

738 if closed and line and p1 != p0: 

739 _A(p0.lat, p0.lon) 

740 

741 # gP.Compute returns (number_of_points, perimeter, signed area) 

742 return gP.Compute(False, True)[1 if line else 2] 

743 

744 

745def _polynomial(x, cs, i, j): # PYCHOK shared 

746 '''(INTERNAL) Like C++ C{GeographicLib.Math.hpp.polyval} but with a 

747 different signature and cascaded summation as C{karney._sum2_}. 

748 

749 @return: M{sum(cs[k] * x**(j - k - 1) for k in range(i, j)} 

750 ''' 

751 # assert 0 <= i <= j <= len(cs) 

752# try: 

753# return _wrapped.Math.polyval(j - i - 1, cs, i, x) 

754# except AttributeError: 

755# s, t = cs[i], _0_0 

756# for c in cs[i+1:j]: 

757# s, t = _sum2_(s * x, t * x, c) 

758# return s # + t 

759 s, _ = _sum2_(cs[i], _0_0, x=x, *cs[i+1:j]) 

760 return s # + t 

761 

762 

763def _remainder(x, y): 

764 '''Remainder of C{x / y}. 

765 

766 @return: Remainder in the range M{[-y / 2, y / 2]}, preserving signed 0.0. 

767 ''' 

768 try: 

769 return _wrapped.Math.remainder(x, y) 

770 except AttributeError: 

771 return fremainder(x, y) 

772 

773 

774if _K_2_0: 

775 from math import cos as _cos, sin as _sin 

776 

777 def _sincos2(rad): 

778 return _sin(rad), _cos(rad) 

779 

780 _signBit = _MODS.basics.signBit 

781else: 

782 _sincos2 = _MODS.utily.sincos2 # PYCHOK shared 

783 

784 def _signBit(x): 

785 '''(INTERNAL) GeographicLib 1.52-. 

786 ''' 

787 return x < 0 

788 

789 

790def _sincos2d(deg): 

791 '''Return sine and cosine of an angle in C{degrees}. 

792 

793 @return: 2-Tuple C{(sin(B{deg}), cos(B{deg}))}. 

794 ''' 

795 try: 

796 return _wrapped.Math.sincosd(deg) 

797 except AttributeError: 

798 return sincos2d(deg) 

799 

800 

801def _sincos2de(deg, t): 

802 '''Return sine and cosine of a corrected angle in C{degrees}. 

803 

804 @return: 2-Tuple C{(sin(B{deg}), cos(B{deg}))}. 

805 ''' 

806 try: 

807 return _wrapped.Math.sincosde(deg, t) 

808 except AttributeError: 

809 return sincos2d(deg, adeg=t) 

810 

811 

812def _sum2(u, v): # mimick geomath.Math.sum, actually sum2 

813 '''Error-free summation like C{geomath.Math.sum}. 

814 

815 @return: 2-Tuple C{(B{u} + B{v}, residual)}. 

816 

817 @note: The C{residual} can be the same as B{C{u}} or B{C{v}}. 

818 

819 @see: U{Algorithm 3.1<https://www.TUHH.De/ti3/paper/rump/OgRuOi05.pdf>}. 

820 ''' 

821 try: 

822 return _wrapped.Math.sum(u, v) 

823 except AttributeError: 

824 s = u + v 

825 r = s - v 

826 t = s - r 

827 # if Algorithm_3_1: 

828 # t = (u - t) + (v + r) 

829 # elif C_CPP: # Math::sum C/C++ 

830 # r -= u 

831 # t -= v 

832 # t += r 

833 # t = -t 

834 # else: 

835 t = (u - r) + (v - t) 

836 return s, t 

837 

838 

839def _sum2_(s, t, *vs, **x): 

840 '''Accumulate any B{C{vs}} into a previous C{_sum2(s, t)}. 

841 

842 @kwarg x: Optional polynomial C{B{x}=1} (C{scalar}). 

843 

844 @return: 2-Tuple C{(B{s} + B{t} + sum(B{vs}), residual)}. 

845 

846 @see: I{Karney's} C++ U{Accumulator<https://GeographicLib.SourceForge.io/ 

847 html/Accumulator_8hpp_source.html>} comments for more details and 

848 function C{_sum2} above. 

849 

850 @note: NOT "error-free", see C{pygeodesy.test/testKarney.py}. 

851 ''' 

852 x = _xkwds_get(x, x=0) 

853 

854 _s2, _u0 = _sum2, unsigned0 

855 for v in vs: 

856 if x: 

857 s *= x 

858 t *= x 

859 if v: 

860 t, u = _s2(t, v) # start at the least- 

861 if s: 

862 s, t = _s2(s, t) # significant end 

863 if s: 

864 t += u # accumulate u into t 

865# elif t: # s == 0 implies t == 0 

866# raise _AssertionError(t=t, txt=_not_(_0_)) 

867 else: 

868 s = _u0(u) # result is u, t = 0 

869 else: 

870 s, t = _u0(t), u 

871 return s, t 

872 

873 

874def _tand(x): 

875 '''Return C{tan(B{x})} in C{degrees}. 

876 ''' 

877 try: 

878 return _wrapped.Math.tand(x) 

879 except AttributeError: 

880 return tand(x) 

881 

882 

883def _unroll2(lon1, lon2, wrap=False): # see .ellipsoidalBaseDI._intersects2 

884 '''Unroll B{C{lon2 - lon1}} like C{geodesic.Geodesic.Inverse}. 

885 

886 @return: 2-Tuple C{(B{lon2} - B{lon1}, B{lon2})} with B{C{lon2}} 

887 unrolled if B{C{wrap}} is C{True}, normalized otherwise. 

888 ''' 

889 if wrap: 

890 d, t = _diff182(lon1, lon2) 

891 lon2, _ = _sum2_(d, t, lon1) # (lon1 + d) + t 

892 else: 

893 lon2 = _norm180(lon2) 

894 return (lon2 - lon1), lon2 

895 

896 

897def _unsigned2(x): 

898 '''(INTERNAL) Unsign B{C{x}}. 

899 ''' 

900 return (neg(x), True) if _signBit(x) else (x, False) 

901 

902 

903__all__ += _ALL_DOCS(_CapsBase) 

904 

905# **) MIT License 

906# 

907# Copyright (C) 2016-2024 -- mrJean1 at Gmail -- All Rights Reserved. 

908# 

909# Permission is hereby granted, free of charge, to any person obtaining a 

910# copy of this software and associated documentation files (the "Software"), 

911# to deal in the Software without restriction, including without limitation 

912# the rights to use, copy, modify, merge, publish, distribute, sublicense, 

913# and/or sell copies of the Software, and to permit persons to whom the 

914# Software is furnished to do so, subject to the following conditions: 

915# 

916# The above copyright notice and this permission notice shall be included 

917# in all copies or substantial portions of the Software. 

918# 

919# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 

920# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 

921# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 

922# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 

923# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 

924# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 

925# OTHER DEALINGS IN THE SOFTWARE.