1

2# -*- coding: utf-8 -*-

3

4 u'''(INTERNAL) Private class C{UtmUpsBase}, functions and constants

5 for L{epsg}, L{etm}, L{mgrs}, L{ups} and L{utm}.

6'''

7

8 from pygeodesy.basics import isint, isscalar, isstr, neg_, \

9 _xinstanceof, _xsubclassof

10 from pygeodesy.constants import _float, _0_0, _0_5, _N_90_0, _180_0

11 from pygeodesy.datums import _ellipsoidal_datum, _WGS84

12 from pygeodesy.dms import degDMS, parseDMS2

13 from pygeodesy.ellipsoidalBase import LatLonEllipsoidalBase as _LLEB

14 from pygeodesy.errors import _or, ParseError, _parseX, _ValueError, \

15 _xkwds, _xkwds_get, _xkwds_not

16 from pygeodesy.interns import NN, _A_, _B_, _COMMA_, _Error_, \

17 _gamma_, _n_a_, _not_, _N_, _NS_, _PLUS_, \

18 _scale_, _SPACE_, _Y_, _Z_, _UNDER

19 from pygeodesy.lazily import _ALL_DOCS, _ALL_MODS as _MODS

20 from pygeodesy.named import _NamedBase, nameof, notOverloaded, _xnamed

21 from pygeodesy.namedTuples import EasNor2Tuple, LatLonDatum5Tuple

22 from pygeodesy.props import deprecated_method, property_doc_, _update_all, \

23 deprecated_property_RO, Property_RO, property_RO

24 from pygeodesy.streprs import Fmt, fstr, _fstrENH2, _xattrs, _xzipairs

25 from pygeodesy.units import Band, Easting, Northing, Scalar, Zone

26 from pygeodesy.utily import _Wrap, wrap360

27

28__all__ = ()

29__version__ = '23.05.03'

30

31_UPS_BANDS = _A_, _B_, _Y_, _Z_ # UPS polar bands SE, SW, NE, NW

32# _UTM_BANDS = _MODS.utm._Bands

33

34_UTM_LAT_MAX = _float( 84) # PYCHOK for export (C{degrees})

35_UTM_LAT_MIN = _float(-80) # PYCHOK for export (C{degrees})

36

37_UPS_LAT_MAX = _UTM_LAT_MAX - _0_5 # PYCHOK includes 30' UTM overlap

38_UPS_LAT_MIN = _UTM_LAT_MIN + _0_5 # PYCHOK includes 30' UTM overlap

39

40_UPS_LATS = {_A_: _N_90_0, _Y_: _UTM_LAT_MAX, # UPS band bottom latitudes,

41 _B_: _N_90_0, _Z_: _UTM_LAT_MAX} # PYCHOK see .Mgrs.bandLatitude

42

43_UTM_ZONE_MAX = 60 # PYCHOK for export

44_UTM_ZONE_MIN = 1 # PYCHOK for export

45_UTM_ZONE_OFF_MAX = 60 # PYCHOK max Central meridian offset (C{degrees})

46

47_UPS_ZONE = _UTM_ZONE_MIN - 1 # PYCHOK for export

48_UPS_ZONE_STR = Fmt.zone(_UPS_ZONE) # PYCHOK for export

49

50_UTMUPS_ZONE_INVALID = -4 # PYCHOK for export too

51_UTMUPS_ZONE_MAX = _UTM_ZONE_MAX # PYCHOK for export too, by .units.py

52_UTMUPS_ZONE_MIN = _UPS_ZONE # PYCHOK for export too, by .units.py

53

54# _MAX_PSEUDO_ZONE = -1

55# _MIN_PSEUDO_ZONE = -4

56# _UTMUPS_ZONE_MATCH = -3

57# _UTMUPS_ZONE_STANDARD = -1

58# _UTM = -2

59

60

61 def _hemi(lat, N=0): # imported by .ups, .utm

62 '''Return the hemisphere letter.

63

64 @arg lat: Latitude (C{degrees} or C{radians}).

65 @kwarg N: Minimal North latitude, C{0} or C{_N_}.

66

67 @return: C{'N'|'S'} for north-/southern hemisphere.

68 '''

69 return _NS_[int(lat < N)]

70

71

72 def _to4lldn(latlon, lon, datum, name, wrap=False):

73 '''(INTERNAL) Return 4-tuple (C{lat, lon, datum, name}).

74 '''

75 try:

76 # if lon is not None:

77 # raise AttributeError

78 lat, lon = float(latlon.lat), float(latlon.lon)

79 _xinstanceof(_LLEB, LatLonDatum5Tuple, latlon=latlon)

80 if wrap:

81 _Wrap.latlon(lat, lon)

82 d = datum or latlon.datum

83 except AttributeError:

84 lat, lon = _Wrap.latlonDMS2(latlon, lon) if wrap else \

85 parseDMS2(latlon, lon) # clipped

86 d = datum or _WGS84

87 return lat, lon, d, (name or nameof(latlon))

88

89

90 def _to3zBhp(zone, band, hemipole=NN, Error=_ValueError): # imported by .epsg, .ups, .utm, .utmups

91 '''Parse UTM/UPS zone, Band letter and hemisphere/pole letter.

92

93 @arg zone: Zone with/-out Band (C{scalar} or C{str}).

94 @kwarg band: Optional I{longitudinal/polar} Band letter (C{str}).

95 @kwarg hemipole: Optional hemisphere/pole letter (C{str}).

96 @kwarg Error: Optional error to raise, overriding the default

97 C{ValueError}.

98

99 @return: 3-Tuple (C{zone, Band, hemisphere/pole}) as (C{int, str,

100 'N'|'S'}) where C{zone} is C{0} for UPS or C{1..60} for

101 UTM and C{Band} is C{'A'..'Z'} I{NOT} checked for valid

102 UTM/UPS bands.

103

104 @raise ValueError: Invalid B{C{zone}}, B{C{band}} or B{C{hemipole}}.

105 '''

106 try:

107 B, z = band, _UTMUPS_ZONE_INVALID

108 if isscalar(zone):

109 z = int(zone)

110 elif zone and isstr(zone):

111 if zone.isdigit():

112 z = int(zone)

113 elif len(zone) > 1:

114 B = zone[-1:]

115 z = int(zone[:-1])

116 elif zone.upper() in _UPS_BANDS: # single letter

117 B = zone

118 z = _UPS_ZONE

119

120 if _UTMUPS_ZONE_MIN <= z <= _UTMUPS_ZONE_MAX:

121 hp = hemipole[:1].upper()

122 if hp in _NS_ or not hp:

123 z = Zone(z)

124 B = Band(B.upper())

125 if B.isalpha():

126 return z, B, (hp or _hemi(B, _N_))

127 elif not B:

128 return z, B, hp

129

130 raise ValueError # _invalid_

131 except (AttributeError, IndexError, TypeError, ValueError) as x:

132 raise Error(zone=zone, band=B, hemipole=hemipole, cause=x)

133

134

135 def _to3zll(lat, lon): # imported by .ups, .utm

136 '''Wrap lat- and longitude and determine UTM zone.

137

138 @arg lat: Latitude (C{degrees}).

139 @arg lon: Longitude (C{degrees}).

140

141 @return: 3-Tuple (C{zone, lat, lon}) as (C{int}, C{degrees90},

142 C{degrees180}) where C{zone} is C{1..60} for UTM.

143 '''

144 x = wrap360(lon + _180_0) # use wrap360 to get ...

145 z = int(x) // 6 + 1 # ... longitudinal UTM zone [1, 60] and ...

146 return Zone(z), lat, (x - _180_0) # ... -180 <= lon < 180

147

148

149 class UtmUpsBase(_NamedBase):

150 '''(INTERNAL) Base class for L{Utm} and L{Ups} coordinates.

151 '''

152 _band = NN # latitude band letter ('A..Z')

153 _Bands = NN # valid Band letters, see L{Utm} and L{Ups}

154 _datum = _WGS84 # L{Datum}

155 _easting = _0_0 # Easting, see B{C{falsed}} (C{meter})

156 _Error = None # I{Must be overloaded}, see function C{notOverloaded}

157 _falsed = True # falsed easting and northing (C{bool})

158 _gamma = None # meridian conversion (C{degrees})

159 _hemisphere = NN # hemisphere ('N' or 'S'), different from UPS pole

160 _latlon = None # cached toLatLon (C{LatLon} or C{._toLLEB})

161 _northing = _0_0 # Northing, see B{C{falsed}} (C{meter})

162 _scale = None # grid or point scale factor (C{scalar}) or C{None}

163# _scale0 = _K0 # central scale factor (C{scalar})

164 _ups = None # cached toUps (L{Ups})

165 _utm = None # cached toUtm (L{Utm})

166

167 def __init__(self, easting, northing, band=NN, datum=None, falsed=True,

168 gamma=None, scale=None, **convergence):

169 '''(INTERNAL) New L{UtmUpsBase}.

170 '''

171 E = self._Error

172 if not E:

173 notOverloaded(self, callername=_UNDER(_Error_))

174

175 self._easting = Easting(easting, Error=E)

176 self._northing = Northing(northing, Error=E)

177

178 if band:

179 self._band1(band)

180

181 if datum not in (None, self._datum):

182 self._datum = _ellipsoidal_datum(datum) # raiser=_datum_, name=band

183

184 if not falsed:

185 self._falsed = False

186

187 if convergence: # for backward compatibility

188 gamma = _xkwds_get(convergence, convergence=gamma)

189 if gamma is not self._gamma:

190 self._gamma = Scalar(gamma=gamma, Error=E)

191 if scale is not self._scale:

192 self._scale = Scalar(scale=scale, Error=E)

193

194 def __repr__(self):

195 return self.toRepr(B=True)

196

197 def __str__(self):

198 return self.toStr()

199

200 def _band1(self, band):

201 '''(INTERNAL) Re/set the latitudinal or polar band.

202 '''

203 if band:

204 _xinstanceof(str, band=band)

205# if not self._Bands:

206# notOverloaded(self, callername=_UNDER('Bands'))

207 if band not in self._Bands:

208 t = _or(*sorted(set(map(repr, self._Bands))))

209 raise self._Error(band=band, txt=_not_(t))

210 self._band = band

211 elif self._band: # reset

212 self._band = NN

213

214 @deprecated_property_RO

215 def convergence(self):

216 '''DEPRECATED, use property C{gamma}.'''

217 return self.gamma

218

219 @property_doc_(''' the (ellipsoidal) datum of this coordinate.''')

220 def datum(self):

221 '''Get the datum (L{Datum}).

222 '''

223 return self._datum

224

225 @datum.setter # PYCHOK setter!

226 def datum(self, datum):

227 '''Set the (ellipsoidal) datum L{Datum}, L{Ellipsoid}, L{Ellipsoid2} or L{a_f2Tuple}).

228 '''

229 d = _ellipsoidal_datum(datum)

230 if self._datum != d:

231 _update_all(self)

232 self._datum = d

233

234 @Property_RO

235 def easting(self):

236 '''Get the easting (C{meter}).

237 '''

238 return self._easting

239

240 @Property_RO

241 def eastingnorthing(self):

242 '''Get easting and northing (L{EasNor2Tuple}C{(easting, northing)}).

243 '''

244 return EasNor2Tuple(self.easting, self.northing)

245

246 def eastingnorthing2(self, falsed=True):

247 '''Return easting and northing, falsed or unfalsed.

248

249 @kwarg falsed: If C{True} return easting and northing falsed

250 (C{bool}), otherwise unfalsed.

251

252 @return: An L{EasNor2Tuple}C{(easting, northing)} in C{meter}.

253 '''

254 e, n = self.falsed2

255 if self.falsed and not falsed:

256 e, n = neg_(e, n)

257 elif falsed and not self.falsed:

258 pass

259 else:

260 e = n = _0_0

261 return EasNor2Tuple(Easting( e + self.easting, Error=self._Error),

262 Northing(n + self.northing, Error=self._Error))

263

264 @Property_RO

265 def _epsg(self):

266 '''(INTERNAL) Cache for method L{toEpsg}.

267 '''

268 return _MODS.epsg.Epsg(self)

269

270 @Property_RO

271 def falsed(self):

272 '''Get easting and northing falsed (C{bool}).

273 '''

274 return self._falsed

275

276 @Property_RO

277 def falsed2(self): # PYCHOK no cover

278 '''(INTERNAL) I{Must be overloaded}, see function C{notOverloaded}.

279 '''

280 notOverloaded(self)

281

282 @Property_RO

283 def gamma(self):

284 '''Get the meridian convergence (C{degrees}) or C{None}

285 if not available.

286 '''

287 return self._gamma

288

289 @property_RO

290 def hemisphere(self):

291 '''Get the hemisphere (C{str}, 'N'|'S').

292 '''

293 if not self._hemisphere:

294 self._toLLEB()

295 return self._hemisphere

296

297 def _latlon5(self, LatLon, **LatLon_kwds):

298 '''(INTERNAL) Get cached C{._toLLEB} as B{C{LatLon}} instance.

299 '''

300 ll = self._latlon

301 if LatLon is None:

302 r = LatLonDatum5Tuple(ll.lat, ll.lon, ll.datum,

303 ll.gamma, ll.scale)

304 else:

305 _xsubclassof(_LLEB, LatLon=LatLon)

306 kwds = _xkwds(LatLon_kwds, datum=ll.datum)

307 r = _xattrs(LatLon(ll.lat, ll.lon, **kwds),

308 ll, _UNDER(_gamma_), _UNDER(_scale_))

309 return _xnamed(r, ll.name)

310

311 def _latlon5args(self, ll, _toBand, unfalse, *other):

312 '''(INTERNAL) See C{._toLLEB} methods, functions C{ups.toUps8} and C{utm._toXtm8}

313 '''

314 ll._toLLEB_args = (unfalse,) + other

315 if unfalse:

316 if not self._band:

317 self._band = _toBand(ll.lat, ll.lon)

318 if not self._hemisphere:

319 self._hemisphere = _hemi(ll.lat)

320 self._latlon = ll

321

322 @Property_RO

323 def _lowerleft(self): # by .ellipsoidalBase._lowerleft

324 '''Get this UTM or UPS C{un}-centered (L{Utm} or L{Ups}) to its C{lowerleft}.

325 '''

326 return _lowerleft(self, 0)

327

328 @Property_RO

329 def _mgrs(self):

330 '''(INTERNAL) Cache for method L{toMgrs}.

331 '''

332 return _toMgrs(self)

333

334 @Property_RO

335 def _mgrs_lowerleft(self):

336 '''(INTERNAL) Cache for method L{toMgrs}, I{un}-centered.

337 '''

338 utmups = self._lowerleft

339 return self._mgrs if utmups is self else _toMgrs(utmups)

340

341 @Property_RO

342 def northing(self):

343 '''Get the northing (C{meter}).

344 '''

345 return self._northing

346

347 @Property_RO

348 def scale(self):

349 '''Get the grid scale (C{float}) or C{None}.

350 '''

351 return self._scale

352

353 @Property_RO

354 def scale0(self):

355 '''Get the central scale factor (C{float}).

356 '''

357 return self._scale0

358

359 @deprecated_method

360 def to2en(self, falsed=True): # PYCHOK no cover

361 '''DEPRECATED, use method C{eastingnorthing2}.

362

363 @return: An L{EasNor2Tuple}C{(easting, northing)}.

364 '''

365 return self.eastingnorthing2(falsed=falsed)

366

367 def toEpsg(self):

368 '''Determine the B{EPSG (European Petroleum Survey Group)} code.

369

370 @return: C{EPSG} code (C{int}).

371

372 @raise EPSGError: See L{Epsg}.

373 '''

374 return self._epsg

375

376 def _toLLEB(self, **kwds): # PYCHOK no cover

377 '''(INTERNAL) I{Must be overloaded}.

378 '''

379 notOverloaded(self, **kwds)

380

381 def toMgrs(self, center=False):

382 '''Convert this UTM/UPS coordinate to an MGRS grid reference.

383

384 @kwarg center: If C{True}, I{un}-center this UTM or UPS to

385 its C{lowerleft} (C{bool}) or by C{B{center}

386 meter} (C{scalar}).

387

388 @return: The MGRS grid reference (L{Mgrs}).

389

390 @see: Function L{pygeodesy.toMgrs} in module L{mgrs} for more details.

391

392 @note: If not specified, the I{latitudinal} C{band} is computed from

393 the (geodetic) latitude and the C{datum}.

394 '''

395 return self._mgrs if center in (False, 0, _0_0) else (

396 self._mgrs_lowerleft if center in (True,) else

397 _toMgrs(_lowerleft(self, center))) # PYCHOK indent

398

399 def _toRepr(self, fmt, B, cs, prec, sep): # PYCHOK expected

400 '''(INTERNAL) Return a representation for this ETM/UTM/UPS coordinate.

401 '''

402 t = self.toStr(prec=prec, sep=None, B=B, cs=cs) # hemipole

403 T = 'ZHENCS'[:len(t)]

404 return _xzipairs(T, t, sep=sep, fmt=fmt)

405

406 def _toStr(self, hemipole, B, cs, prec, sep):

407 '''(INTERNAL) Return a string for this ETM/UTM/UPS coordinate.

408 '''

409 z = NN(Fmt.zone(self.zone), (self.band if B else NN)) # PYCHOK band

410 t = (z, hemipole) + _fstrENH2(self, prec, None)[0]

411 if cs:

412 prec = cs if isint(cs) else 8 # for backward compatibility

413 t += (_n_a_ if self.gamma is None else

414 degDMS(self.gamma, prec=prec, pos=_PLUS_),

415 _n_a_ if self.scale is None else

416 fstr(self.scale, prec=prec))

417 return t if sep is None else sep.join(t)

418

419

420 def _lowerleft(utmups, center): # by .ellipsoidalBase._lowerleft

421 '''(INTERNAL) I{Un}-center a B{C{utmups}} to its C{lowerleft} by

422 C{B{center} meter} or by a I{guess} if B{C{center}} is C{0}.

423 '''

424 if center:

425 e = n = -center

426 else:

427 c = 5 # center

428 for _ in range(3):

429 c *= 10 # 50, 500, 5000

430 t = c * 2

431 e = int(utmups.easting % t)

432 n = int(utmups.northing % t)

433 if (e == c and n in (c, c - 1)) or \

434 (n == c and e in (c, c - 1)):

435 break

436 else:

437 return utmups # unchanged

438

439 r = _xkwds_not(None, datum=utmups.datum,

440 gamma=utmups.gamma,

441 scale=utmups.scale)

442 return utmups.classof(utmups.zone, utmups.hemisphere,

443 utmups.easting - e, utmups.northing - n,

444 band=utmups.band, falsed=utmups.falsed, **r)

445

446

447 def _parseUTMUPS5(strUTMUPS, UPS, Error=ParseError, band=NN, sep=_COMMA_):

448 '''(INTERNAL) Parse a string representing a UTM or UPS coordinate

449 consisting of C{"zone[band] hemisphere/pole easting northing"}.

450

451 @arg strUTMUPS: A UTM or UPS coordinate (C{str}).

452 @kwarg band: Optional, default Band letter (C{str}).

453 @kwarg sep: Optional, separator to split (",").

454

455 @return: 5-Tuple (C{zone, hemisphere/pole, easting, northing,

456 band}).

457

458 @raise ParseError: Invalid B{C{strUTMUPS}}.

459 '''

460 def _UTMUPS5(strUTMUPS, UPS, band, sep):

461 u = strUTMUPS.lstrip()

462 if UPS and not u.startswith(_UPS_ZONE_STR):

463 raise ValueError(_not_(_UPS_ZONE_STR))

464

465 u = u.replace(sep, _SPACE_).strip().split()

466 if len(u) < 4:

467 raise ValueError(_not_(sep))

468

469 z, h = u[:2]

470 if h[:1].upper() not in _NS_:

471 raise ValueError(_SPACE_(h, _not_(_NS_)))

472

473 if z.isdigit():

474 z, B = int(z), band

475 else:

476 for i in range(len(z)):

477 if not z[i].isdigit():

478 # int('') raises ValueError

479 z, B = int(z[:i]), z[i:]

480 break

481 else:

482 raise ValueError(z)

483

484 e, n = map(float, u[2:4])

485 return z, h.upper(), e, n, B.upper()

486

487 return _parseX(_UTMUPS5, strUTMUPS, UPS, band, sep,

488 strUTMUPS=strUTMUPS, Error=Error)

489

490

491 def _toMgrs(utmups):

492 '''(INTERNAL) Convert a L{Utm} or L{Ups} to an L{Mgrs} instance.

493 '''

494 return _MODS.mgrs.toMgrs(utmups, datum=utmups.datum, name=utmups.name)

495

496

497__all__ += _ALL_DOCS(UtmUpsBase)

498

499# **) MIT License

500#

501# Copyright (C) 2016-2023 -- mrJean1 at Gmail -- All Rights Reserved.

502#

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

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

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

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

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

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

509#

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

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

512#

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

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

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

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

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

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

519# OTHER DEALINGS IN THE SOFTWARE.