1

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

3

4 u'''I{Karney}'s UTM and UPS utilities.

5

6 Functions L{parseUTMUPS5}, L{toUtmUps8}, L{UtmUps} and L{utmupsZoneBand5}

7 to handle both I{Universal Transverse Mercator} (U{UTM

8<https://WikiPedia.org/wiki/Universal_Transverse_Mercator_coordinate_system>})

9 and I{Universal Polar Stereographic} (U{UPS

10<https://WikiPedia.org/wiki/Universal_polar_stereographic_coordinate_system>})

11 coordinates.

12

13 A pure Python implementation, partially transcoded from C++ class U{UTMUPS

14<https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1UTMUPS.html>}

15 by I{Charles Karney}.

16'''

17# from pygeodesy.basics import map1 # from .namedTuples

18# from pygeodesy.datums import _WGS84 # from .utmupsBase

19 from pygeodesy.errors import _IsnotError, RangeError, _ValueError, _xkwds_get

20 from pygeodesy.interns import NN, _easting_, _MGRS_, _northing_, _NS_, \

21 _outside_, _range_, _SPACE_, _UPS_, _UTM_

22 from pygeodesy.lazily import _ALL_LAZY, _ALL_MODS as _MODS

23 from pygeodesy.named import modulename

24 from pygeodesy.namedTuples import UtmUps5Tuple, UtmUps8Tuple, map1

25# from pygeodesy.streprs import Fmt # from .utmupsBase

26 from pygeodesy.units import Northing, _100km

27 from pygeodesy.ups import parseUPS5, toUps8, Ups, UPSError, upsZoneBand5

28 from pygeodesy.utm import parseUTM5, toUtm8, Utm, UTMError, utmZoneBand5

29 from pygeodesy.utmupsBase import Fmt, _to4lldn, _to3zBhp, _UPS_ZONE, \

30 _UPS_ZONE_STR, _UTMUPS_ZONE_MIN, \

31 _UTMUPS_ZONE_MAX, _WGS84

32

33__all__ = _ALL_LAZY.utmups

34__version__ = '23.05.03'

35

36_MGRS_TILE = _100km # in .mgrs.Mgrs.tile

37

38_UPS_N_MAX = Northing( 27 * _MGRS_TILE)

39_UPS_N_MIN = Northing( 13 * _MGRS_TILE)

40_UPS_S_MAX = Northing( 32 * _MGRS_TILE)

41_UPS_S_MIN = Northing( 8 * _MGRS_TILE)

42

43_UTM_C_MAX = Northing( 9 * _MGRS_TILE)

44_UTM_C_MIN = Northing( 1 * _MGRS_TILE)

45_UTM_N_MAX = Northing( 95 * _MGRS_TILE)

46_UTM_N_MIN = Northing( 0 * _MGRS_TILE)

47_UTM_S_MAX = Northing(100 * _MGRS_TILE)

48_UTM_S_MIN = Northing( 10 * _MGRS_TILE)

49

50_UTM_N_SHIFT = _UTM_S_MAX - _UTM_N_MIN # South minus North UTM northing

51

52

53 class _UpsMinMax(object): # XXX _NamedEnum or _NamedTuple

54 # UPS ranges for North, South pole

55 eMax = _UPS_N_MAX, _UPS_S_MAX

56 eMin = _UPS_N_MIN, _UPS_S_MIN

57 nMax = _UPS_N_MAX, _UPS_S_MAX

58 nMin = _UPS_N_MIN, _UPS_S_MIN

59

60

61 class _UtmMinMax(object): # XXX _NamedEnum or _NamedTuple

62 # UTM ranges for Northern, Southern hemisphere

63 eMax = _UTM_C_MAX, _UTM_C_MAX

64 eMin = _UTM_C_MIN, _UTM_C_MIN

65 nMax = _UTM_N_MAX, Northing(_UTM_N_MAX + _UTM_N_SHIFT)

66 nMin = Northing(_UTM_S_MIN - _UTM_N_SHIFT), _UTM_S_MIN

67

68

69 class UTMUPSError(_ValueError): # XXX (UTMError, UPSError)

70 '''Universal Transverse Mercator/Universal Polar Stereographic

71 (UTM/UPS) parse, validate or other issue.

72 '''

73 pass

74

75

76 def parseUTMUPS5(strUTMUPS, datum=_WGS84, Utm=Utm, Ups=Ups, name=NN):

77 '''Parse a string representing a UTM or UPS coordinate, consisting

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

79

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

81 @kwarg datum: Optional datum to use (L{Datum}).

82 @kwarg Utm: Optional class to return the UTM coordinate (L{Utm})

83 or C{None}.

84 @kwarg Ups: Optional class to return the UPS coordinate (L{Ups})

85 or C{None}.

86 @kwarg name: Optional instance name (C{str}).

87

88 @return: The UTM or UPS instance (B{C{Utm}} or B{C{Ups}}) or

89 a L{UtmUps5Tuple}C{(zone, hemipole, easting, northing,

90 band)} if B{C{Utm}} respectively B{C{Ups}} or both are

91 C{None}. The C{hemipole} is C{'N'|'S'}, the UTM hemisphere

92 or UPS pole, the UPS projection top/center.

93

94 @raise UTMUPSError: Invalid B{C{strUTMUPS}}.

95

96 @see: Functions L{pygeodesy.parseUTM5} and L{pygeodesy.parseUPS5}.

97 '''

98 try:

99 try:

100 u = parseUTM5(strUTMUPS, datum=datum, Utm=Utm, name=name)

101 except UTMError:

102 u = parseUPS5(strUTMUPS, datum=datum, Ups=Ups, name=name)

103 return u

104

105 except (UTMError, UPSError) as x:

106 raise UTMUPSError(strUTMUPS=strUTMUPS, cause=x)

107

108

109 def toUtmUps8(latlon, lon=None, datum=None, falsed=True, Utm=Utm, Ups=Ups,

110 pole=NN, name=NN, **cmoff):

111 '''Convert a lat-/longitude point to a UTM or UPS coordinate.

112

113 @arg latlon: Latitude (C{degrees}) or an (ellipsoidal)

114 geodetic C{LatLon} point.

115 @kwarg lon: Optional longitude (C{degrees}) or C{None}.

116 @kwarg datum: Optional datum to use this UTM coordinate,

117 overriding B{C{latlon}}'s datum (C{Datum}).

118 @kwarg falsed: False both easting and northing (C{bool}).

119 @kwarg Utm: Optional class to return the UTM coordinate (L{Utm})

120 or C{None}.

121 @kwarg Ups: Optional class to return the UPS coordinate (L{Ups})

122 or C{None}.

123 @kwarg pole: Optional top/center of UPS (stereographic)

124 projection (C{str}, C{'N[orth]'} or C{'S[outh]'}).

125 @kwarg name: Optional name (C{str}).

126 @kwarg cmoff: DEPRECATED, use B{C{falsed}}. Offset longitude

127 from zone's central meridian, for UTM only (C{bool}).

128

129 @return: The UTM or UPS coordinate (B{C{Utm}} respectively B{C{Ups}})

130 or a L{UtmUps8Tuple}C{(zone, hemipole, easting, northing,

131 band, datum, gamma, scale)} if B{C{Utm}} respectively

132 B{C{Ups}} is C{None} or B{C{cmoff}} is C{False}.

133

134 @raise RangeError: If B{C{lat}} outside the valid UTM or UPS bands

135 or if B{C{lat}} or B{C{lon}} outside the valid

136 range and L{pygeodesy.rangerrors} set to C{True}.

137

138 @raise TypeError: If B{C{latlon}} is not ellipsoidal or B{C{lon}}

139 value is missing of B{C{datum}} is invalid.

140

141 @raise UTMUPSError: UTM or UPS validation failed.

142

143 @raise ValueError: Invalid B{C{lat}} or B{C{lon}}.

144

145 @see: Functions L{pygeodesy.toUtm8} and L{pygeodesy.toUps8}.

146 '''

147 lat, lon, d, name = _to4lldn(latlon, lon, datum, name)

148 z, B, p, lat, lon = utmupsZoneBand5(lat, lon)

149

150 f = falsed and _xkwds_get(cmoff, cmoff=True)

151 if z == _UPS_ZONE:

152 u = toUps8(lat, lon, datum=d, falsed=f, Ups=Ups, pole=pole or p, name=name)

153 else:

154 u = toUtm8(lat, lon, datum=d, falsed=f, Utm=Utm, name=name)

155 return u

156

157

158 def UtmUps(zone, hemipole, easting, northing, band=NN, datum=_WGS84,

159 falsed=True, name=NN):

160 '''Class-like function to create a UTM/UPS coordinate.

161

162 @kwarg zone: The UTM zone with/-out I{longitudinal} Band or UPS zone C{0}

163 or C{"00"} with/-out I{polar} Band (C{str} or C{int}).

164 @kwarg hemipole: UTM hemisphere or UPS top/center of projection

165 (C{str}, C{'N[orth]'} or C{'S[outh]'}).

166 @arg easting: Easting, see B{C{falsed}} (C{meter}).

167 @arg northing: Northing, see B{C{falsed}} (C{meter}).

168 @kwarg band: Optional, UTM I{latitudinal} C{'C'|'D'|..|'W'|'X'} or UPS

169 I{polar} Band letter C{'A'|'B'|'Y'|'Z'} Band letter (C{str}).

170 @kwarg datum: Optional, the coordinate's datum (L{Datum}).

171 @kwarg falsed: Both B{C{easting}} and B{C{northing}} are falsed (C{bool}).

172 @kwarg name: Optional name (C{str}).

173

174 @return: New UTM or UPS instance (L{Utm} or L{Ups}).

175

176 @raise TypeError: Invalid B{C{datum}}.

177

178 @raise UTMUPSError: UTM or UPS validation failed.

179

180 @see: Classes L{Utm} and L{Ups} and I{Karney}'s U{UTMUPS

181 <https://GeographicLib.SourceForge.io/C++/doc/classGeographicLib_1_1UTMUPS.html>}.

182 '''

183 z, B, hp = _to3zBhp(zone, band, hemipole=hemipole)

184 U = Ups if z in (_UPS_ZONE, _UPS_ZONE_STR) else Utm

185 return U(z, hp, easting, northing, band=B, datum=datum,

186 falsed=falsed, name=name)

187

188

189 def utmupsValidate(coord, falsed=False, MGRS=False, Error=UTMUPSError):

190 '''Check a UTM or UPS coordinate.

191

192 @arg coord: The UTM or UPS coordinate (L{Utm}, L{Etm}, L{Ups}

193 or C{5+Tuple}).

194 @kwarg falsed: C{5+Tuple} easting and northing are falsed

195 (C{bool}), ignored otherwise.

196 @kwarg MGRS: Increase easting and northing ranges (C{bool}).

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

198 (L{UTMUPSError}).

199

200 @return: C{None} if validation passed.

201

202 @raise Error: Validation failed.

203

204 @see: Function L{utmupsValidateOK}.

205 '''

206

207 def _en(en, lo, hi, ename): # U, Error

208 try:

209 if lo <= float(en) <= hi:

210 return

211 except (TypeError, ValueError):

212 pass

213 t = _SPACE_(_outside_, U, _range_, _range_(lo, hi))

214 raise Error(ename, en, txt=t)

215

216 if isinstance(coord, (Ups, Utm)):

217 hemi = coord.hemisphere

218 enMM = coord.falsed

219 elif isinstance(coord, (UtmUps5Tuple, UtmUps8Tuple)):

220 hemi = coord.hemipole

221 enMM = falsed

222 else:

223 raise _IsnotError(Error=Error, coord=coord, *map1(modulename,

224 Utm, Ups, UtmUps5Tuple, UtmUps8Tuple))

225 band = coord.band

226 zone = coord.zone

227

228 z, B, h = _to3zBhp(zone, band, hemipole=hemi)

229

230 if z == _UPS_ZONE: # UPS

231 u, U, M = _MODS.ups, _UPS_, _UpsMinMax

232 else: # UTM

233 u, U, M = _MODS.utm, _UTM_, _UtmMinMax

234

235 if MGRS:

236 U, s = _MGRS_, _MGRS_TILE

237 else:

238 s = 0

239

240 i = _NS_.find(h)

241 if i < 0 or z < _UTMUPS_ZONE_MIN \

242 or z > _UTMUPS_ZONE_MAX \

243 or B not in u._Bands:

244 t = Fmt.PAREN(U, repr(_SPACE_(NN(Fmt.zone(z), B), h)))

245 raise Error(coord=t, zone=zone, band=band, hemisphere=hemi)

246

247 if enMM:

248 _en(coord.easting, M.eMin[i] - s, M.eMax[i] + s, _easting_) # PYCHOK .eMax .eMin

249 _en(coord.northing, M.nMin[i] - s, M.nMax[i] + s, _northing_) # PYCHOK .nMax .nMin

250

251

252 def utmupsValidateOK(coord, falsed=False, ok=True):

253 '''Check a UTM or UPS coordinate.

254

255 @arg coord: The UTM or UPS coordinate (L{Utm}, L{Ups} or C{5+Tuple}).

256 @kwarg falsed: C{5+Tuple} easting and northing are falsed (C{bool}).

257 @kwarg ok: Result to return if validation passed (B{C{ok}}).

258

259 @return: B{C{ok}} if validation passed, the L{UTMUPSError} otherwise.

260

261 @see: Function L{utmupsValidate}.

262 '''

263 try:

264 utmupsValidate(coord, falsed=falsed)

265 return ok

266 except UTMUPSError as x:

267 return x

268

269

270 def utmupsZoneBand5(lat, lon, cmoff=False, name=NN):

271 '''Return the UTM/UPS zone number, Band letter, hemisphere/pole

272 and clipped lat- and longitude for a given location.

273

274 @arg lat: Latitude in degrees (C{scalar} or C{str}).

275 @arg lon: Longitude in degrees (C{scalar} or C{str}).

276 @kwarg cmoff: Offset longitude from the zone's central

277 meridian, for UTM only (C{bool}).

278 @kwarg name: Optional name (C{str}).

279

280 @return: A L{UtmUpsLatLon5Tuple}C{(zone, band, hemipole,

281 lat, lon)} where C{hemipole} is C{'N'|'S'}, the

282 UTM hemisphere or UPS pole, the UPS projection

283 top/center.

284

285 @raise RangeError: If B{C{lat}} outside the valid UTM or UPS bands

286 or if B{C{lat}} or B{C{lon}} outside the valid

287 range and L{pygeodesy.rangerrors} set to C{True}.

288

289 @raise ValueError: Invalid B{C{lat}} or B{C{lon}}.

290

291 @see: Functions L{pygeodesy.utmZoneBand5} and L{pygeodesy.upsZoneBand5}.

292 '''

293 try:

294 return utmZoneBand5(lat, lon, cmoff=cmoff, name=name)

295 except RangeError:

296 return upsZoneBand5(lat, lon, name=name)

297

298# **) MIT License

299#

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

301#

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

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

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

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

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

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

308#

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