Hide keyboard shortcuts

Hot-keys on this page

r m x p   toggle line displays

j k   next/prev highlighted chunk

0   (zero) top of page

1   (one) first highlighted chunk

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

743

744

745

746

747

748

749

750

751

752

753

754

755

756

757

758

759

760

761

762

763

764

765

766

767

768

769

770

771

772

773

774

775

776

777

778

779

780

781

782

783

784

785

786

787

788

789

790

791

792

793

794

795

796

797

798

799

800

801

802

803

804

805

806

807

808

809

810

811

812

813

814

815

816

817

818

819

820

821

822

823

824

825

826

827

828

829

830

831

832

833

834

835

836

837

838

839

840

841

842

843

844

845

846

847

848

849

850

851

852

853

854

855

856

857

858

859

860

861

862

863

864

865

866

867

868

869

870

871

872

873

874

875

876

877

878

879

880

881

882

883

884

885

886

887

888

889

890

891

892

893

894

895

896

897

898

899

900

901

902

903

904

905

906

907

908

909

910

911

912

913

914

915

916

917

918

919

920

921

922

923

924

925

926

927

928

929

930

931

932

933

934

935

936

937

938

939

940

941

942

943

944

945

946

947

948

949

950

951

952

953

954

955

956

957

958

959

960

961

962

963

964

965

966

967

968

969

970

971

972

973

974

975

976

977

978

979

980

981

982

983

984

985

986

987

988

989

990

991

992

993

994

995

996

997

998

999

1000

1001

1002

1003

1004

1005

1006

1007

1008

1009

1010

1011

1012

1013

1014

1015

1016

1017

1018

1019

1020

1021

1022

1023

1024

1025

1026

1027

1028

1029

1030

1031

1032

1033

1034

1035

1036

1037

1038

1039

1040

1041

1042

1043

1044

1045

1046

1047

1048

1049

1050

1051

1052

1053

1054

1055

1056

1057

1058

1059

1060

1061

1062

1063

1064

1065

1066

1067

1068

1069

1070

1071

1072

1073

1074

1075

1076

1077

1078

1079

1080

1081

1082

1083

1084

1085

1086

1087

1088

1089

 

# -*- coding: utf-8 -*- 

 

u'''(INTERNAL) Classes C{_Named}, C{_NamedDict}, C{_NamedInt}, 

C{_NamedStr} and C{_NamedTuple} with nameable instances and several 

subclasses thereof. 

 

In addition, the items in a C{_NamedDict} are accessable as attributes 

and the items in a C{_NamedTuple} can be named to be accessable as 

attributes, similar to standard Python C{namedtuple}s. 

 

Results previously returned as tuples by C{pygeodesy} functions and 

class methods are now instances of some C{...Tuple} class, all 

sub-classes of C{_NamedTuple} defined here. 

 

@newfield example: Example, Examples 

''' 

 

from pygeodesy.fmath import fStr, _IsNotError 

from pygeodesy.lazily import _ALL_DOCS, _ALL_LAZY, _xcopy 

from pygeodesy.utily import issubclassof, property_RO, _Strs, unStr 

 

# XXX 'FsumDelta2Tuple' is in _ALL_LAZY.named 

__all__ = _ALL_LAZY.named + _ALL_DOCS( # '_Named', '_NamedBase', 

# '_NamedDict', '_NamedEnum', '_NamedEnumItem', 

# '_NamedInt', '_NamedStr', '_NamedTuple', 

'Bearing2Tuple', 'Bounds2Tuple', 'Bounds4Tuple', 

'ClipCS3Tuple', 'ClipSH3Tuple', 'Curvature2Tuple', 

'Destination2Tuple', 

'Distance2Tuple', 'Distance3Tuple', 'Distance4Tuple', 

'EasNor2Tuple', 'EasNor3Tuple', 

'EasNorAziRk4Tuple', 'EasNorExact4Tuple', 'EasNorRadius3Tuple', 

'Elevation2Tuple', 'GeoidHeight2Tuple', 'GeoidHeight5Tuple', 

'LatLon2Tuple', 'LatLon3Tuple', 'LatLon4Tuple', 

'LatLonAziRk4Tuple', 'LatLonDatum3Tuple', 'LatLonDatum5Tuple', 

'LatLonExact4Tuple', 'LatLonPrec3Tuple', 'LatLonPrec5Tuple', 

'Mgrs4Tuple', 'Mgrs6Tuple', 

'NearestOn3Tuple', 'NearestOn5Tuple', 

'Ned3Tuple', 'Neighbors8Dict', 

'PhiLam2Tuple', 'PhiLam3Tuple', 

'Point3Tuple', 'Points2Tuple', 'Shape2Tuple', 

'UtmUps2Tuple', 'UtmUps4Tuple', 'UtmUps5Tuple', 'UtmUps8Tuple', 

'UtmUpsLatLon5Tuple', 

'Vector3Tuple', 'Vector4Tuple') 

__version__ = '20.01.23' 

 

_NAME_ = 'name' # __NAME gets mangled in class 

 

 

def _xattrs(inst, other, *attrs): 

'''(INTERNAL) Copy attribute values from B{C{other}} to B{C{inst}}. 

 

@param inst: Instance to copy attribute values to. 

@param other: Instance to copy attribute values from. 

@param attrs: Attribute names (C{str}s). 

 

@return: The B{C{inst}}, updated. 

 

@raise AttributeError: An B{C{attr}} doesn't exist or is not settable. 

''' 

def _getattr(o, a): 

if hasattr(o, a): 

return getattr(o, a) 

raise AttributeError('.%s invalid: %r' % (a, o)) 

 

for a in attrs: 

s = _getattr(other, a) 

g = _getattr(inst, a) 

if (g is None and s is not None) or g != s: 

setattr(inst, a, s) # not settable? 

return inst 

 

 

def _xnamed(inst, name): 

'''(INTERNAL) Set the instance' C{.name = }B{C{name}}. 

 

@param inst: The instance (C{_Named}). 

@param name: The name (C{str}). 

 

@return: The B{C{inst}}, named if not named before. 

''' 

if name and isinstance(inst, _Named) and not inst.name: 

inst.name = name 

return inst 

 

 

class _Named(object): 

'''(INTERNAL) Root class for named objects. 

''' 

_name = '' #: (INTERNAL) name (C{str}) 

_classnaming = False #: (INTERNAL) prefixed (C{bool}) 

 

def __repr__(self): 

return '<%s at %#x>' % (self.named2, id(self)) 

 

__str__ = __repr__ 

 

@property_RO 

def classname(self): 

'''Get this object's C{[module.]class} name (C{str}), see 

property C{classnaming} and function C{classnaming}. 

''' 

return classname(self, prefixed=self._classnaming) 

 

@property 

def classnaming(self): 

'''Get the class naming (C{bool}). 

''' 

return self._classnaming 

 

@classnaming.setter # PYCHOK setter! 

def classnaming(self, prefixed): 

'''Set the class naming for C{[module.].class} names. 

 

@param prefixed: Include the module name (C{bool}). 

''' 

self._classnaming = bool(prefixed) 

 

def classof(self, *args, **kwds): 

'''Create another instance of this very class. 

 

@param args: Optional, positional arguments. 

@keyword kwds: Optional, keyword arguments. 

 

@return: New instance (B{self.__class__}). 

''' 

return _xnamed(self.__class__(*args, **kwds), self.name) 

 

def copy(self, deep=False): 

'''Make a shallow or deep copy of this instance. 

 

@keyword deep: If C{True} make a deep, otherwise 

a shallow copy (C{bool}). 

 

@return: The copy (C{This class} or subclass thereof). 

''' 

return _xcopy(self, deep=deep) 

 

@property 

def name(self): 

'''Get the name (C{str}). 

''' 

return self._name 

 

@name.setter # PYCHOK setter! 

def name(self, name): 

'''Set the name. 

 

@param name: New name (C{str}). 

''' 

self._name = str(name) 

# to set the name ffrom a sub-class, use 

# self.name = name or 

# _Named.name.fset(self, name), but 

# not _Named(self).name = name 

 

@property_RO 

def named(self): 

'''Get the name I{or} class name or C{""} (C{str}). 

''' 

return self.name or self.classname 

 

@property_RO 

def named2(self): 

'''Get the class name I{and/or} thename or C{""} (C{str}). 

''' 

n, c = self.name, self.classname 

return ('%s %r' % (c, n)) if c and n else (c or n) 

 

def _notOverloaded(self, name, *args, **kwds): 

'''Raise an error for a method or property not overloaded. 

''' 

n = '%s %s.%s' % (self._notOverloaded.__name__, self.classname, name) 

raise AssertionError(unStr(n, *args, **kwds)) 

 

def toStr(self, **unused): 

'''Default C{str(self)}. 

''' 

return str(self) 

 

def toStr2(self, **unused): 

'''Default C{repr(self)}. 

''' 

return repr(self) 

 

def _xrenamed(self, inst): 

'''(INTERNAL) Rename the instance' C{.name = self.name}. 

 

@param inst: The instance (C{_Named}). 

 

@return: The B{C{inst}}, named if not named before. 

''' 

if not isinstance(inst, _Named): 

raise _IsNotError('valid', inst=inst) 

 

if inst.name != self.name: 

inst.name = self.name 

return inst 

 

def _xnamed(self, inst, name=''): 

'''(INTERNAL) Set the instance' C{.name = self.name}. 

 

@param inst: The instance (C{_Named}). 

@keyword name: Optional name, overriding C{self.name} (C{str}). 

 

@return: The B{C{inst}}, named if not named before. 

''' 

n = name or self.name 

return _xnamed(inst, n) if n else inst 

 

 

class _NamedBase(_Named): 

'''(INTERNAL) Base class with name. 

''' 

 

def __repr__(self): 

return self.toStr2() 

 

def __str__(self): 

return self.toStr() 

 

def _update(self, unused): 

'''(INTERNAL) To be overloaded. 

''' 

pass 

 

# def notImplemented(self, attr): 

# '''Raise error for a missing method, function or attribute. 

# 

# @param attr: Attribute name (C{str}). 

# 

# @raise NotImplementedError: No such attribute. 

# ''' 

# c = self.__class__.__name__ 

# return NotImplementedError('%s.%s' % (c, attr)) 

 

def others(self, other, name='other'): 

'''Check this and an other instance for type compatiblility. 

 

@param other: The other instance (any C{type}). 

@keyword name: Optional, name for other (C{str}). 

 

@return: C{None}. 

 

@raise TypeError: Mismatch of this and B{C{other}} C{type}. 

''' 

if not (isinstance(self, other.__class__) or 

isinstance(other, self.__class__)): 

raise TypeError('type(%s) mismatch: %s vs %s' % (name, 

classname(other), self.classname)) 

 

def toStr(self, **kwds): 

'''(INTERNAL) Must be overloaded. 

 

@param kwds: Optional, keyword arguments. 

''' 

self._notOverloaded(self.toStr.__name__, **kwds) 

 

# def toStr(self, *args, **kwds): 

# if kwds or args: 

# t = list('%s=%r' % t for t in sorted(kwds.items())) 

# if args: 

# t = map(repr, args) + t 

# s = ', '.join(t) 

# else: 

# s = super(self.__class__, self).__str__() 

# return s 

 

def toStr2(self, **kwds): 

'''(INTERNAL) To be overloaded. 

 

@keyword kwds: Optional, keyword arguments. 

 

@return: L{toStr}() plus keyword arguments (as C{str}). 

''' 

t = self.toStr(**kwds).lstrip('([{').rstrip('}])') 

return '%s(%s)' % (self.classname, t) 

 

# def toStr2(self, *args, **kwds) 

# if args or kwds: 

# s = self.toStr(*args, **kwds) 

# else: 

# s = super(self.__class__, self).__repr__() 

# return '%s(%s)' % (self.named, s) # clip(s) 

 

 

class _NamedDict(dict, _Named): 

'''(INTERNAL) Named C{dict} with key I{and} attribute 

access to the items. 

''' 

 

def __init__(self, *args, **kwds): 

if kwds: 

if _NAME_ in kwds: 

_Named.name.fset(self, kwds.pop(_NAME_)) # see _Named.name 

dict.__init__(self, kwds) 

if args: 

raise ValueError('%s(%s) invalid: %r' % 

(self.classname, 'args', args,)) 

 

def __delattr__(self, name): 

if name in dict.keys(self): 

dict.pop(name) 

elif name == _NAME_: 

dict.__setattr__(self, name, '') 

else: 

dict.__delattr__(self, name) 

 

def __getattr__(self, name): 

try: 

return self[name] 

except KeyError: 

if name == _NAME_: 

return _Named.name.fget(self) 

return dict.__getattr__(self, name) 

 

def __getitem__(self, key): 

if key == _NAME_: 

raise KeyError('%s[%r]' % (self.classname, key)) 

return dict.__getitem__(self, key) 

 

def __repr__(self): 

t = ', '.join('%s=%r' % t for t in self.items()) 

return '%s(%s)' % (self.name, t) 

 

def __setattr__(self, name, value): 

if name in dict.keys(self): 

dict.__setitem__(self, name, value) # self[name] = value 

else: 

dict.__setattr__(self, name, value) 

 

def __setitem__(self, key, value): 

if key == _NAME_: 

raise KeyError('%s[%r] = %r' % (self.classname, key, value)) 

dict.__setitem__(self, key, value) 

 

def __str__(self): 

return dict.__repr__(self) # dict.__str__(self) fails 

 

 

class Neighbors8Dict(_NamedDict): 

'''8-Dict C{(N, NE, E, SE, S, SW, W, NW)} of L{Geohash}es, 

providing key I{and} attribute access to the items. 

''' 

_Keys_ = ('N', 'NE', 'E', 'SE', 'S', 'SW', 'W', 'NW') 

 

 

class _NamedEnum(_NamedDict): 

'''(INTERNAL) Enum-like C{_NamedDict} with attribute access 

restricted to valid keys. 

''' 

_item_classes = () 

 

def __init__(self, name, *classes): 

'''New C{_NamedEnum}. 

 

@param name: Name (C{str}). 

''' 

if classes: 

self._item_classes = classes 

if name: 

_Named.name.fset(self, name) # see _Named.name 

 

def __getattr__(self, name): 

try: 

return self[name] 

except KeyError: 

if name == _NAME_: 

return _NamedDict.name.fget(self) 

raise AttributeError("%s.%s doesn't exist" % (self.named, name)) 

 

def __repr__(self): 

return '\n'.join('%s.%s: %r,' % (self.name, n, v) for n, v in sorted(self.items())) 

 

def __str__(self): 

return (self.name + '.') + ', .'.join(sorted(self.keys())) 

 

def _assert(self, **kwds): 

'''(INTERNAL) Check names against given, registered names. 

''' 

for a, v in kwds.items(): 

assert self[a] is v and getattr(self, a) \ 

and self.find(v) == a 

 

def find(self, item): 

'''Find a registered item. 

 

@param item: The item to look for (any C{type}). 

 

@return: If found the B{C{item}}'s name (C{str}), C{None} otherwise. 

''' 

for k, v in self.items(): 

if v is item: 

return k 

return None 

 

def register(self, item): 

'''Registed a new item. 

 

@param item: The item (any C{type}). 

 

@return: The item name (C{str}). 

 

@raise NameError: An B{C{item}} already registered with 

that name or the B{C{item}} has no, an 

empty or an invalid name. 

 

@raise TypeError: The B{C{item}} type invalid. 

''' 

if not (self._item_classes and isinstance(item, self._item_classes)): 

raise TypeError('%s.%s: %r' % ('item', 'type', item)) 

 

try: 

n = item.name 

if not (n and n.replace('_', '').isalnum() and isinstance(n, _Strs)): 

raise ValueError 

except (AttributeError, ValueError): 

raise NameError('%s.%s %s: %r' % ('item', 'name', 'invalid', item)) 

if n in self: 

raise NameError('%s.%s %s: %r' % (self.named, n, 'exists', item)) 

self[n] = item 

 

def unregister(self, name_or_item): 

'''Remove a registered item. 

 

@param name_or_item: Name (C{str}) of or the item (any C{type}). 

 

@return: The unregistered item. 

 

@raise NameError: No item with that B{C{name}}. 

 

@raise ValueError: No such item. 

''' 

name = self.find(name_or_item) 

if name is None: 

if not isinstance(name_or_item, _Strs): 

raise ValueError('no such %r' % (name_or_item,)) 

name = name_or_item 

try: 

item = dict.pop(self, name) 

except KeyError: 

raise NameError('no %s.%r' % (self.named, name)) 

item._enum = None 

return item 

 

 

class _NamedEnumItem(_NamedBase): 

'''(INTERNAL) Base class for items in a C{_NamedEnum} registery. 

''' 

_enum = None 

 

def __ne__(self, other): 

'''Compare this and an other item. 

 

@return: C{True} if different, C{False} otherwise. 

''' 

return not self.__eq__(other) 

 

def _fStr(self, prec, *attrs, **others): 

'''(INTERNAL) Format. 

''' 

t = fStr([getattr(self, a) for a in attrs], prec=prec, sep=' ', ints=True) 

t = ['%s=%s' % (a, v) for a, v in zip(attrs, t.split())] 

if others: 

t += ['%s=%s' % (a, v) for a, v in sorted(others.items())] 

return ', '.join(['name=%r' % (self.name,)] + t) 

 

def _register(self, enum, name): 

'''(INTERNAL) Add this item as B{C{enum.name}}. 

 

@note: Don't register if name is empty or doesn't 

start with a letter. 

''' 

if name: 

self.name = name 

if name[:1].isalpha(): # '_...' not registered 

enum.register(self) 

self._enum = enum 

 

@property 

def name(self): 

'''Get the I{registered, immutable} name (C{str}). 

''' 

return self._name 

 

@name.setter # PYCHOK setter! 

def name(self, name): 

'''Set the name, unless already registered. 

 

@param name: New name (C{str}). 

''' 

if self._enum: 

raise ValueError('%s, %s: %r' % ('registered', 'immutable', self)) 

self._name = str(name) 

 

def unregister(self): 

'''Remove this instance from its C{_NamedEnum} registry. 

 

@raise AssertionError: Mismatch of this and registered item. 

 

@raise NameError: This item is unregistered. 

''' 

enum = self._enum 

if enum and self.name and self.name in enum: 

item = enum.unregister(self.name) 

if item is not self: 

raise AssertionError('%r vs %r' % (item, self)) 

 

 

class _NamedInt(int, _Named): 

'''(INTERNAL) Named C{int}. 

''' 

def __repr__(self): 

return "%s(%s)" % (self.named, int.__repr__(self)) 

 

def __str__(self): 

return int.__str__(self) 

 

 

class _NamedStr(str, _Named): 

'''(INTERNAL) Named C{str}. 

''' 

def __repr__(self): 

return "%s(%s)" % (self.named, str.__repr__(self)) 

 

def __str__(self): 

return str.__str__(self) 

 

 

class _NamedTuple(tuple, _Named): 

'''(INTERNAL) Named C{tuple} with index I{and} attribute 

access to the items. 

 

@note: This class is similar to Python's C{namedtuple}, 

but limited and lighter in setup and weight. 

''' 

_Names_ = () # must be tuple of 2 or more attr names 

 

def __new__(cls, *args): 

'''New L{_NamedTuple} initialized with B{C{positional}} arguments. 

''' 

self = tuple.__new__(cls, args) 

ns = self._Names_ 

if not (isinstance(ns, tuple) and len(ns) > 1): 

raise TypeError('%s.%s inot valid: %r' % 

(self.classname, '_Names_', ns)) 

if len(ns) != len(args) or not ns: 

raise ValueError('%s(%s) not valid: %r[%s] vs %s' % 

(self.classname, 'args', 

args, len(args), len(ns))) 

if _NAME_ in ns: 

raise NameError('%s.%s not valid: %r' % 

(self.classname, '_Names_', _NAME_)) 

return self 

 

def __delattr__(self, name): 

if name in self._Names_: 

raise TypeError('%s not mutable: %s .%s' % 

(self.classname, 'del', name)) 

elif name == _NAME_: 

tuple.__setattr__(self, name, '') 

else: 

tuple.__delattr__(self, name) 

 

def __getattr__(self, name): 

try: 

return tuple.__getitem__(self, self._Names_.index(name)) 

except IndexError: 

raise IndexError('%s.%s not valid: %r' % 

(self.classname, '<name>', name)) 

except ValueError: 

return tuple.__getattribute__(self, name) 

 

def __getitem__(self, item): # index, slice, etc. 

return tuple.__getitem__(self, item) 

 

def __repr__(self): 

t = ', '.join('%s=%r' % t for t in self.items()) 

return '%s(%s)' % (self.name, t) 

 

def __setattr__(self, name, value): 

if name in self._Names_: 

raise TypeError('%s not mutable: %s=%r' % 

(self.classname, name, value)) 

else: 

tuple.__setattr__(self, name, value) 

 

def __str__(self): 

return tuple.__repr__(self) # tuple.__str__(self) fails 

 

def items(self): 

'''Get the items as C{name, value} pairs (C{2-tuple}s). 

''' 

for i, n in enumerate(self._Names_): 

yield n, tuple.__getitem__(self, i) 

 

iteritems = items 

 

def _xtend(self, namedTuple, *items): 

'''(INTERNAL) Extend this C{_Tuple} with C{items} to an other C{namedTuple}. 

''' 

if not (issubclassof(namedTuple, _NamedTuple) and 

(len(self._Names_) + len(items)) == len(namedTuple._Names_) 

and self._Names_ == namedTuple._Names_[:len(self)]): 

raise TypeError('%s%r vs %s%r' % (self.classname, self._Names_, 

namedTuple.__name__, namedTuple._Names_)) 

return self._xnamed(namedTuple(*(self + items))) 

 

 

class Bearing2Tuple(_NamedTuple): 

'''2-Tuple C{(initial, final)} bearings, both in compass C{degrees360}. 

''' 

_Names_ = ('initial', 'final') 

 

 

class Bounds2Tuple(_NamedTuple): # .geohash.py, .latlonBase.py, .points.py 

'''2-Tuple C{(latlonSW, latlonNE)} with the bounds' lower-left and 

upper-right corner as C{LatLon} instance. 

''' 

_Names_ = ('latlonSW', 'latlonNE') 

 

 

class Bounds4Tuple(_NamedTuple): # .geohash.py, .points.py 

'''4-Tuple C{(latS, lonW, latN, lonE)} with the bounds' lower-left 

C{(LatS, LowW)} and upper-right C{(latN, lonE)} corner lat- and 

longitudes. 

''' 

_Names_ = ('latS', 'lonW', 'latN', 'lonE') 

 

 

class ClipCS3Tuple(_NamedTuple): # .clipy.py 

'''3-Tuple C{(start, end, index)} for each edge of a I{clipped} 

path with the C{start} and C{end} points (C{LatLon}) of the 

portion of the edge inside or on the clip box and the C{index} 

(C{int}) of the edge in the original path. 

''' 

_Names_ = ('start', 'end', 'index') 

 

 

class ClipSH3Tuple(_NamedTuple): # .clipy.py 

'''3-Tuple C{(start, end, original)} for each edge of a I{clipped} 

polygon, the C{start} and C{end} points (C{LatLon}) of the 

portion of the edge inside or on the clip region and the 

C{original} indicates whether the edge is part of the original 

polygon or part of the clip region (C{bool}). 

''' 

_Names_ = ('start', 'end', 'original') 

 

 

class Curvature2Tuple(_NamedTuple): # .datum.py 

'''2-Tuple C{(meridional, prime_vertical)} of radii of curvature, 

both in C{meter}. 

''' 

_Names_ = ('meridional', 'prime_vertical') 

 

 

class Destination2Tuple(_NamedTuple): # .ellipsoidalKarney.py, -Vincenty.py 

'''2-Tuple C{(destination, final)}, C{destination} in C{LatLon} 

and C{final} bearing in compass C{degrees360}. 

''' 

_Names_ = ('destination', 'final') 

 

 

class Distance2Tuple(_NamedTuple): # .datum.py, .ellipsoidalBase.py 

'''2-Tuple C{(distance, initial)}, C{distance} in C{meter} and 

C{initial} bearing in compass C{degrees360}. 

''' 

_Names_ = ('distance', 'initial') 

 

 

class Distance3Tuple(_NamedTuple): # .ellipsoidalKarney.py, -Vincenty.py 

'''3-Tuple C{(distance, initial, final)}, C{distance} in C{meter} 

and C{initial} and C{final} bearing, both in compass C{degrees360}. 

''' 

_Names_ = ('distance', 'initial', 'final') 

 

 

class Distance4Tuple(_NamedTuple): # .formy.py, .points.py 

'''4-Tuple C{(distance2, delta_lat, delta_lon, unroll_lon2)} with 

the distance in C{degrees squared}, the latitudinal C{delta_lat} 

= B{C{lat2}}-B{C{lat1}}, the wrapped, unrolled and adjusted 

longitudinal C{delta_lon} = B{C{lon2}}-B{C{lon1}} and the 

C{unroll_lon2} unrollment for B{C{lon2}}. 

 

@note: Use Function L{degrees2m} to convert C{degrees squared} 

to C{meter} as M{degrees2m(sqrt(distance2), ...)} or 

M{degrees2m(hypot(delta_lat, delta_lon), ...)}. 

''' 

_Names_ = ('distance2', 'delta_lat', 'delta_lon', 'unroll_lon2') 

 

 

class EasNor2Tuple(_NamedTuple): # .css.py, .osgr.py 

'''2-Tuple C{(easting, northing)}, both in C{meter}. 

''' 

_Names_ = ('easting', 'northing') 

 

 

class EasNor3Tuple(_NamedTuple): # .css.py, .lcc.py 

'''3-Tuple C{(easting, northing, height)}, all in C{meter}. 

''' 

_Names_ = ('easting', 'northing', 'height') 

 

 

class EasNorAziRk4Tuple(_NamedTuple): 

'''4-Tuple C{(easting, northing, azimuth, reciprocal)} for the 

Cassini-Soldner location with C{easting} and C{northing} in 

C{meters}, the C{azimuth} of easting direction azimuth and 

C{reciprocal} the reciprocal of azimuthal northing scale 

reciprocal, both in C{degrees}. 

''' 

_Names_ = ('easting', 'northing', 'azimuth', 'reciprocal') 

 

 

class EasNorExact4Tuple(_NamedTuple): # .etm.py 

'''4-Tuple C{(easting, northing, convergence, scale)} in 

C{meter}, C{meter}, {degrees} and C{scalar}. 

''' 

_Names_ = ('easting', 'northing', 'convergence', 'scale') 

 

 

class EasNorRadius3Tuple(_NamedTuple): # .webmercator.py 

'''3-Tuple C{(easting, northing, radius)}, all in C{meter}. 

''' 

_Names_ = ('easting', 'northing', 'radius') 

 

 

class Elevation2Tuple(_NamedTuple): # .elevations.py 

'''2-Tuple C{(elevation, data_source)} in C{meter} and C{str}. 

''' 

_Names_ = ('elevation', 'data_source') 

 

 

class GeoidHeight2Tuple(_NamedTuple): # .elevations.py 

'''2-Tuple C{(height, model_name)}, geoid C{height} in C{meter} 

and C{model_name} as C{str}. 

''' 

_Names_ = ('height', 'model_name') 

 

 

class GeoidHeight5Tuple(_NamedTuple): # .geoids.py 

'''5-Tuple C{(lat, lon, egm84, egm96, egm2008)} for U{GeoidHeights.dat 

<https://SourceForge.net/projects/geographiclib/files/testdata/>} 

tests with the heights for 3 different EGM grids with C{-90.0 <= 

lat <= 90.0} and C{-180.0 <= lon <= 180.0} degrees (and C{lon} 

converted from the original C{0.0 <= EasterLon <= 360.0}). 

''' 

_Names_ = ('lat', 'lon', 'egm84', 'egm96', 'egm2008') 

 

 

class LatLon2Tuple(_NamedTuple): 

'''2-Tuple C{(lat, lon)} in C{degrees[90]} and C{degrees[180]}. 

''' 

_Names_ = ('lat', 'lon') 

 

def _3Tuple(self, height): 

'''(INTERNAL) Extend to a L{LatLon3Tuple}. 

''' 

return self._xtend(LatLon3Tuple, height) 

 

def _4Tuple(self, height, datum): 

'''(INTERNAL) Extend to a L{LatLon4Tuple}. 

''' 

return self._xtend(LatLon4Tuple, height, datum) 

 

 

class LatLon3Tuple(_NamedTuple): 

'''3-Tuple C{(lat, lon, height)} in C{degrees[90]}, C{degrees[180]} 

and C{meter}. 

''' 

_Names_ = ('lat', 'lon', 'height') 

 

def _4Tuple(self, datum): 

'''(INTERNAL) Extend to a L{LatLon4Tuple}. 

''' 

return self._xtend(LatLon4Tuple, datum) 

 

 

class LatLon4Tuple(_NamedTuple): # .css.py 

'''4-Tuple C{(lat, lon, height, datum)} in C{degrees90}, 

C{degrees180}, C{meter} and L{Datum}. 

''' 

_Names_ = ('lat', 'lon', 'height', 'datum') 

 

 

class LatLonAziRk4Tuple(_NamedTuple): # .css.py 

'''4-Tuple C{(lat, lon, azimuth, reciprocal)}, all in C{degrees} 

where C{azimuth} is the azimuth of easting direction and 

C{reciprocal} the reciprocal of azimuthal northing scale. 

''' 

_Names_ = ('lat', 'lon', 'azimuth', 'reciprocal') 

 

 

class LatLonDatum3Tuple(_NamedTuple): # .lcc.py, .osgr.py 

'''3-Tuple C{(lat, lon, datum)} in C{degrees[90]}, C{degrees[180]} 

and L{Datum}. 

''' 

_Names_ = ('lat', 'lon', 'datum') 

 

 

class LatLonDatum5Tuple(_NamedTuple): # .ups.py, .utm.py 

'''5-Tuple C{(lat, lon, datum, convergence, scale)} in 

C{degrees[90]}, C{degrees[180]}, L{Datum}, {degrees} 

and C{float}. 

''' 

_Names_ = ('lat', 'lon', 'datum', 'convergence', 'scale') 

 

 

class LatLonExact4Tuple(_NamedTuple): # .etm.py 

'''4-Tuple C{(lat, lon, convergence, scale)} in C{degrees}, 

C{degrees180}, C{degrees} and C{sclar}. 

''' 

_Names_ = ('lat', 'lon', 'convergence', 'scale') 

 

 

class LatLonPrec3Tuple(_NamedTuple): # .gars.py, .wgrs.py 

'''3-Tuple C{(lat, lon, precision)} in C{degrees}, C{degrees} 

and C{int}. 

''' 

_Names_ = ('lat', 'lon', 'precision') 

 

 

class LatLonPrec5Tuple(_NamedTuple): # .wgrs.py 

'''5-Tuple C{(lat, lon, precision, height, radius)} in C{degrees}, 

C{degrees}, C{int} and C{height} or C{radius} in C{meter} (or 

C{None} if missing). 

''' 

_Names_ = ('lat', 'lon', 'precision', 'height', 'radius') 

 

 

class Mgrs4Tuple(_NamedTuple): # see .mgrs.py 

'''4-Tuple C{(zone, digraph, easting, northing)}, C{zone} and 

C{digraph} as C{str}, C{easting} and C{northing} in C{meter}. 

''' 

_Names_ = ('zone', 'digraph', 'easting', 'northing') 

 

 

class Mgrs6Tuple(_NamedTuple): 

'''6-Tuple C{(zone, digraph, easting, northing, band, datum)}, 

C{zone}, C{digraph} and C{band} as C{str}, C{easting} and 

C{northing} in C{meter} and C{datum} a L{Datum}. 

''' 

_Names_ = ('zone', 'digraph', 'easting', 'northing', 'band', 'datum') 

 

 

class NearestOn3Tuple(_NamedTuple): # .points.py, .sphericalTrigonometry.py 

'''3-Tuple C{(closest, distance, angle)} of the C{closest} 

point on the polygon, either a C{LatLon} instance or a 

L{LatLon3Tuple}C{(lat, lon, height)} and the C{distance} 

and C{angle} to the C{closest} point are in C{meter} 

respectively compass C{degrees360}. 

''' 

_Names_ = ('closest', 'distance', 'angle') 

 

 

class NearestOn5Tuple(_NamedTuple): # .points.py 

'''5-Tuple C{(lat, lon, distance, angle, height)} all in C{degrees}, 

except C{height}. The C{distance} is the L{equirectangular_} 

distance between the closest and the reference B{C{point}} in 

C{degrees}. The C{angle} from the reference B{C{point}} to 

the closest point is in compass C{degrees360}, see function 

L{compassAngle}. The C{height} is the (interpolated) height 

at the closest point in C{meter} or C{0}. 

''' 

_Names_ = ('lat', 'lon', 'distance', 'angle', 'height') 

 

 

class Ned3Tuple(_NamedTuple): # .ellipsoidalNvector.py 

'''3-Tuple C{(north, east, down)}, all in C{degrees}. 

''' 

_Names_ = ('north', 'east', 'down') 

 

 

class PhiLam2Tuple(_NamedTuple): # .frechet.py, .hausdorff.py, .latlonBase.py, .points.py, .vector3d.py 

'''2-Tuple C{(phi, lam)} with latitude C{phi} in C{radians[PI_2]} 

and longitude C{lam} in C{radians[PI]}. 

 

@note: Using C{phi/lambda} for lat-/longitude in radians 

follows Chris Veness' U{convention 

<https://www.Movable-Type.co.UK/scripts/latlong.html>}. 

''' 

_Names_ = ('phi', 'lam') 

 

def _3Tuple(self, height): 

'''(INTERNAL) Extend to a L{PhiLam3Tuple}. 

''' 

return self._xtend(PhiLam3Tuple, height) 

 

 

class PhiLam3Tuple(_NamedTuple): # .nvector.py 

'''3-Tuple C{(phi, lam, height)} with latitude C{phi} in 

C{radians[PI_2]}, longitude C{lam} in C{radians[PI]} and 

C{height} in C{meter}. 

 

@note: Using C{phi/lamda} for lat-/longitude in radians 

follows Chris Veness' U{convention 

<https://www.Movable-Type.co.UK/scripts/latlong.html>}. 

''' 

_Names_ = ('phi', 'lam', 'height') 

 

 

class Point3Tuple(_NamedTuple): # .points.py 

'''3-Tuple C{(x, y, ll)} in C{meter}, C{meter} and C{LatLon}. 

''' 

_Names_ = ('x', 'y', 'll') 

 

 

class Points2Tuple(_NamedTuple): # .formy.py 

'''2-Tuple C{(number, points)} with the C{number} of points 

and -possible reduced- C{list} or C{tuple} of C{points}. 

''' 

_Names_ = ('number', 'points') 

 

 

class Shape2Tuple(_NamedTuple): # .points.py 

'''2-Tuple C{(nrows, ncols)}, the number of rows and columns, 

both C{int}. 

''' 

_Names_ = ('nrows', 'ncols') 

 

 

class UtmUps2Tuple(_NamedTuple): # .epsg.py 

'''2-Tuple C{(zone, hemipole)} as C{int} and C{str}, where 

C{zone} is C{1..60} for UTM or C{0} for UPS and C{hemipole} 

C{'N'|'S'} is the UTM hemisphere or the UPS pole. 

''' 

_Names_ = ('zone', 'hemipole') 

 

 

class UtmUps4Tuple(_NamedTuple): # .mgrs.py 

'''4-Tuple C{(zone, hemipole, easting, northing)} as C{str}, 

C{str}, C{meter} and C{meter}. 

''' 

_Names_ = ('zone', 'hemipole', 'easting', 'northing') 

 

 

class UtmUps5Tuple(_NamedTuple): # .ups.py, .utm.py, .utmups.py 

'''5-Tuple C{(zone, hemipole, easting, northing, band)} as C{int}, 

C{str}, C{meter}, C{meter} and C{band} letter, where C{zone} 

is C{1..60} for UTM or C{0} for UPS, C{hemipole} C{'N'|'S'} is 

the UTM hemisphere or the UPS pole and {band} is C{""} or the 

(longitudinal) UTM band C{'C'|'D'..'W'|'X'} or the (polar) UPS 

band C{'A'|'B'|'Y'|'Z'}. 

''' 

_Names_ = ('zone', 'hemipole', 'easting', 'northing', 'band') 

 

 

class UtmUps8Tuple(_NamedTuple): # .ups.py, .utm.py, .utmups.py 

'''8-Tuple C{(zone, hemipole, easting, northing, band, datum, 

convergence, scale)} as C{int}, C{str}, C{meter}, C{meter}, 

C{band} letter, C{Datum}, C{degrees} and C{float}, where 

C{zone} is C{1..60} for UTM or C{0} for UPS, C{hemipole} 

C{'N'|'S'} is the UTM hemisphere or the UPS pole and {band} 

is C{""} or the (longitudinal) UTM band C{'C'|'D'..'W'|'X'} 

or the (polar) UPS band C{'A'|'B'|'Y'|'Z'}. 

''' 

_Names_ = ('zone', 'hemipole', 'easting', 'northing', 

'band', 'datum', 'convergence', 'scale') 

 

 

class UtmUpsLatLon5Tuple(_NamedTuple): # .ups.py, .utm.py, .utmups.py 

'''5-Tuple C{(zone, band, hemipole, lat, lon)} as C{int}, 

C{str}, C{str}, C{degrees90} and C{degrees180}, where 

C{zone} is C{1..60} for UTM or C{0} for UPS, {band} is 

C{""} or the (longitudinal) UTM band C{'C'|'D'..'W'|'X'} 

or (polar) UPS band C{'A'|'B'|'Y'|'Z'} and C{hemipole} 

C{'N'|'S'} is the UTM hemisphere or the UPS pole. 

''' 

_Names_ = ('zone', 'band', 'hemipole', 'lat', 'lon') 

 

 

class Vector3Tuple(_NamedTuple): 

'''3-Tuple C{(x, y, z)} of (geocentric) components, all in 

C{meter} or C{units}. 

''' 

_Names_ = ('x', 'y', 'z') 

 

def _4Tuple(self, h): 

'''(INTERNAL) Extend to a L{Vector4Tuple}. 

''' 

return self._xtend(Vector4Tuple, h) 

 

 

class Vector4Tuple(_NamedTuple): # .nvector.py 

'''4-Tuple C{(x, y, z, h)} of (geocentric) components, all in 

C{meter} or C{units}. 

''' 

_Names_ = ('x', 'y', 'z', 'h') 

 

 

def classname(inst, prefixed=None): 

'''Return the instance' class name optionally prefixed with the 

module name. 

 

@param inst: The object (any C{type}). 

@keyword prefixed: Include the module name (C{bool}), see 

function L{classnaming}. 

 

@return: The B{C{inst}}'s C{[module.]class} name (C{str}). 

''' 

try: 

n = inst.__class__.__name__ 

except AttributeError: 

n = 'Nn' 

if prefixed or (getattr(inst, 'classnaming', _Named._classnaming) 

if prefixed is None else False): 

try: 

m = inst.__module__ 

n = '.'.join(m.split('.')[-1:] + [n]) 

except AttributeError: 

pass 

return n 

 

 

def classnaming(prefixed=None): 

'''Get/set the default naming for C{[module.]class} names. 

 

@keyword prefixed: Include the module name (C{bool}). 

 

@return: Previous class naming setting (C{bool}). 

''' 

t = _Named._classnaming 

if prefixed in (True, False): 

_Named._classnaming = prefixed 

return t 

 

 

def inStr(inst, *args, **kwds): 

'''Return the string representation of an instance. 

 

@param inst: The instance (any C{type}). 

@param args: Optional positional arguments. 

@keyword kwds: Optional keyword arguments. 

 

@return: The B{C{inst}}'s representation (C{str}). 

''' 

return unStr(classname(inst), *args, **kwds) 

 

 

def nameof(inst): 

'''Get the name of an instance. 

 

@param inst: The object (any C{type}). 

 

@return: The instance' name (C{str}) or C{""}. 

''' 

return getattr(inst, 'name', '') 

 

 

if __name__ == '__main__': 

 

from pygeodesy.lazily import _FOR_DOCS 

if not _FOR_DOCS: 

raise NameError('usage: %s' % ('env PYGEODESY_FOR_DOCS=1 python ...',)) 

 

ls = set(locals().keys()) - \ 

set(('fStr', 'ls', 'n', 'property_RO', 'issubclassof', 'unStr')) 

for n in __all__: 

if n not in ls: 

raise NameError('%s %r not in %s' % ('__all__', n, 'locals')) 

for n in ls: 

if n not in __all__ and not n.startswith('_'): 

raise NameError('%s %r not in %s' % ('locals', n, '__all__')) 

 

print('all %s %s OK' % (len(ls), 'locals')) 

 

# **) MIT License 

# 

# Copyright (C) 2016-2020 -- mrJean1 at Gmail -- All Rights Reserved. 

# 

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

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

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

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

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

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

# 

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

# in all copies or substantial portions of the Software. 

# 

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

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

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

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

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

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

# OTHER DEALINGS IN THE SOFTWARE. 

 

# % env PYGEODESY_FOR_DOCS=1 python -m pygeodesy.named 

# all 71 locals OK