/
_transformer.pyx
1156 lines (1046 loc) · 38.6 KB
/
_transformer.pyx
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
include "base.pxi"
cimport cython
from cpython.mem cimport PyMem_Free, PyMem_Malloc
import copy
import re
import warnings
from collections import namedtuple
from pyproj._compat cimport cstrencode
from pyproj._crs cimport (
_CRS,
Base,
CoordinateOperation,
_get_concatenated_operations,
_to_proj4,
_to_wkt,
create_area_of_use,
)
from pyproj._datadir cimport (
_clear_proj_error,
_get_proj_error,
pyproj_context_create,
pyproj_context_destroy,
)
from pyproj._datadir import _LOGGER
from pyproj.aoi import AreaOfInterest
from pyproj.enums import ProjVersion, TransformDirection, WktVersion
from pyproj.exceptions import ProjError
# version number string for PROJ
proj_version_str = f"{PROJ_VERSION_MAJOR}.{PROJ_VERSION_MINOR}.{PROJ_VERSION_PATCH}"
PROJ_VERSION = (PROJ_VERSION_MAJOR, PROJ_VERSION_MINOR, PROJ_VERSION_PATCH)
_AUTH_CODE_RE = re.compile(r"(?P<authority>\w+)\:(?P<code>\w+)")
cdef dict _TRANSFORMER_TYPE_MAP = {
PJ_TYPE_UNKNOWN: "Unknown Transformer",
PJ_TYPE_CONVERSION: "Conversion Transformer",
PJ_TYPE_TRANSFORMATION: "Transformation Transformer",
PJ_TYPE_CONCATENATED_OPERATION: "Concatenated Operation Transformer",
PJ_TYPE_OTHER_COORDINATE_OPERATION: "Other Coordinate Operation Transformer",
}
Factors = namedtuple(
"Factors",
[
"meridional_scale",
"parallel_scale",
"areal_scale",
"angular_distortion",
"meridian_parallel_angle",
"meridian_convergence",
"tissot_semimajor",
"tissot_semiminor",
"dx_dlam",
"dx_dphi",
"dy_dlam",
"dy_dphi",
],
)
Factors.__doc__ = """
.. versionadded:: 2.6.0
These are the scaling and angular distortion factors.
See PROJ :c:type:`PJ_FACTORS` documentation.
Parameters
----------
meridional_scale: list[float]
Meridional scale at coordinate.
parallel_scale: list[float]
Parallel scale at coordinate.
areal_scale: list[float]
Areal scale factor at coordinate.
angular_distortion: list[float]
Angular distortion at coordinate.
meridian_parallel_angle: list[float]
Meridian/parallel angle at coordinate.
meridian_convergence: list[float]
Meridian convergence at coordinate. Sometimes also described as *grid declination*.
tissot_semimajor: list[float]
Maximum scale factor.
tissot_semiminor: list[float]
Minimum scale factor.
dx_dlam: list[float]
Partial derivative of coordinate.
dx_dphi: list[float]
Partial derivative of coordinate.
dy_dlam: list[float]
Partial derivative of coordinate.
dy_dphi: list[float]
Partial derivative of coordinate.
"""
cdef PJ_DIRECTION get_pj_direction(object direction) except *:
# optimized lookup to avoid creating a new instance every time
# gh-1205
if not isinstance(direction, TransformDirection):
direction = TransformDirection.create(direction)
# to avoid __hash__ calls from a dictionary lookup,
# we can inline the small number of options for performance
if direction is TransformDirection.FORWARD:
return PJ_FWD
if direction is TransformDirection.INVERSE:
return PJ_INV
if direction is TransformDirection.IDENT:
return PJ_IDENT
raise KeyError(f"{direction} is not a valid TransformDirection")
cdef class _TransformerGroup:
def __cinit__(self):
self.context = NULL
self._transformers = []
self._unavailable_operations = []
self._best_available = True
def __dealloc__(self):
"""destroy projection definition"""
if self.context != NULL:
pyproj_context_destroy(self.context)
def __init__(
self,
_CRS crs_from not None,
_CRS crs_to not None,
bint always_xy,
area_of_interest,
bint allow_ballpark,
str authority,
double accuracy,
bint allow_superseded,
):
"""
From PROJ docs:
The operations are sorted with the most relevant ones first: by
descending area (intersection of the transformation area with the
area of interest, or intersection of the transformation with the
area of use of the CRS), and by increasing accuracy. Operations
with unknown accuracy are sorted last, whatever their area.
"""
self.context = pyproj_context_create()
cdef:
PJ_OPERATION_FACTORY_CONTEXT* operation_factory_context = NULL
PJ_OBJ_LIST * pj_operations = NULL
PJ* pj_transform = NULL
PJ_CONTEXT* context = NULL
const char* c_authority = NULL
int num_operations = 0
int is_instantiable = 0
double west_lon_degree
double south_lat_degree
double east_lon_degree
double north_lat_degree
if authority is not None:
c_authority = authority
try:
operation_factory_context = proj_create_operation_factory_context(
self.context,
c_authority,
)
if area_of_interest is not None:
if not isinstance(area_of_interest, AreaOfInterest):
raise ProjError(
"Area of interest must be of the type "
"pyproj.transformer.AreaOfInterest."
)
west_lon_degree = area_of_interest.west_lon_degree
south_lat_degree = area_of_interest.south_lat_degree
east_lon_degree = area_of_interest.east_lon_degree
north_lat_degree = area_of_interest.north_lat_degree
proj_operation_factory_context_set_area_of_interest(
self.context,
operation_factory_context,
west_lon_degree,
south_lat_degree,
east_lon_degree,
north_lat_degree,
)
if accuracy > 0:
proj_operation_factory_context_set_desired_accuracy(
self.context,
operation_factory_context,
accuracy,
)
proj_operation_factory_context_set_allow_ballpark_transformations(
self.context,
operation_factory_context,
allow_ballpark,
)
proj_operation_factory_context_set_discard_superseded(
self.context,
operation_factory_context,
not allow_superseded,
)
proj_operation_factory_context_set_grid_availability_use(
self.context,
operation_factory_context,
PROJ_GRID_AVAILABILITY_IGNORED,
)
proj_operation_factory_context_set_spatial_criterion(
self.context,
operation_factory_context,
PROJ_SPATIAL_CRITERION_PARTIAL_INTERSECTION
)
pj_operations = proj_create_operations(
self.context,
crs_from.projobj,
crs_to.projobj,
operation_factory_context,
)
num_operations = proj_list_get_count(pj_operations)
for iii in range(num_operations):
context = pyproj_context_create()
pj_transform = proj_list_get(
context,
pj_operations,
iii,
)
is_instantiable = proj_coordoperation_is_instantiable(
context,
pj_transform,
)
if is_instantiable:
self._transformers.append(
_Transformer._from_pj(
context,
pj_transform,
always_xy,
)
)
else:
coordinate_operation = CoordinateOperation.create(
context,
pj_transform,
)
self._unavailable_operations.append(coordinate_operation)
if iii == 0:
self._best_available = False
warnings.warn(
"Best transformation is not available due to missing "
f"{coordinate_operation.grids[0]!r}"
)
finally:
if operation_factory_context != NULL:
proj_operation_factory_context_destroy(operation_factory_context)
if pj_operations != NULL:
proj_list_destroy(pj_operations)
_clear_proj_error()
cdef PJ* proj_create_crs_to_crs(
PJ_CONTEXT *ctx,
const char *source_crs_str,
const char *target_crs_str,
PJ_AREA *area,
str authority,
str accuracy,
allow_ballpark,
bint force_over,
only_best,
) except NULL:
"""
This is the same as proj_create_crs_to_crs in proj.h
with the options added. It is a hack for stabilily
reasons.
Reference: https://github.com/pyproj4/pyproj/pull/800
"""
cdef PJ *source_crs = proj_create(ctx, source_crs_str)
if source_crs == NULL:
_LOGGER.debug(
"PROJ_DEBUG: proj_create_crs_to_crs: Cannot instantiate source_crs"
)
return NULL
cdef PJ *target_crs = proj_create(ctx, target_crs_str)
if target_crs == NULL:
proj_destroy(source_crs)
_LOGGER.debug(
"PROJ_DEBUG: proj_create_crs_to_crs: Cannot instantiate target_crs"
)
return NULL
cdef:
const char* options[6]
bytes b_authority
bytes b_accuracy
int options_index = 0
int options_init_iii = 0
for options_init_iii in range(6):
options[options_init_iii] = NULL
if authority is not None:
b_authority = cstrencode(f"AUTHORITY={authority}")
options[options_index] = b_authority
options_index += 1
if accuracy is not None:
b_accuracy = cstrencode(f"ACCURACY={accuracy}")
options[options_index] = b_accuracy
options_index += 1
if allow_ballpark is not None:
if not allow_ballpark:
options[options_index] = b"ALLOW_BALLPARK=NO"
options_index += 1
if force_over:
options[options_index] = b"FORCE_OVER=YES"
options_index += 1
if only_best is not None:
if only_best:
options[options_index] = b"ONLY_BEST=YES"
else:
options[options_index] = b"ONLY_BEST=NO"
cdef PJ* transform = NULL
with nogil:
transform = proj_create_crs_to_crs_from_pj(
ctx,
source_crs,
target_crs,
area,
options,
)
proj_destroy(source_crs)
proj_destroy(target_crs)
if transform == NULL:
raise ProjError("Error creating Transformer from CRS.")
return transform
cdef class _Transformer(Base):
def __cinit__(self):
self._area_of_use = None
self.type_name = "Unknown Transformer"
self._operations = None
self._source_crs = None
self._target_crs = None
def _initialize_from_projobj(self):
self.proj_info = proj_pj_info(self.projobj)
if self.proj_info.id == NULL:
raise ProjError("Input is not a transformation.")
cdef PJ_TYPE transformer_type = proj_get_type(self.projobj)
self.type_name = _TRANSFORMER_TYPE_MAP[transformer_type]
self._set_base_info()
_clear_proj_error()
@property
def id(self):
return self.proj_info.id
@property
def description(self):
return self.proj_info.description
@property
def definition(self):
return self.proj_info.definition
@property
def has_inverse(self):
return self.proj_info.has_inverse == 1
@property
def accuracy(self):
return self.proj_info.accuracy
@property
def area_of_use(self):
"""
Returns
-------
AreaOfUse:
The area of use object with associated attributes.
"""
if self._area_of_use is not None:
return self._area_of_use
self._area_of_use = create_area_of_use(self.context, self.projobj)
return self._area_of_use
@property
def source_crs(self):
"""
.. versionadded:: 3.3.0
Returns
-------
_CRS | None:
The source CRS of a CoordinateOperation.
"""
if self._source_crs is not None:
return None if self._source_crs is False else self._source_crs
cdef PJ * projobj = proj_get_source_crs(self.context, self.projobj)
_clear_proj_error()
if projobj == NULL:
self._source_crs = False
return None
try:
self._source_crs = _CRS(_to_wkt(
self.context,
projobj,
version=WktVersion.WKT2_2019,
pretty=False,
))
finally:
proj_destroy(projobj)
return self._source_crs
@property
def target_crs(self):
"""
.. versionadded:: 3.3.0
Returns
-------
_CRS | None:
The target CRS of a CoordinateOperation.
"""
if self._target_crs is not None:
return None if self._target_crs is False else self._target_crs
cdef PJ * projobj = proj_get_target_crs(self.context, self.projobj)
_clear_proj_error()
if projobj == NULL:
self._target_crs = False
return None
try:
self._target_crs = _CRS(_to_wkt(
self.context,
projobj,
version=WktVersion.WKT2_2019,
pretty=False,
))
finally:
proj_destroy(projobj)
return self._target_crs
@property
def operations(self):
"""
.. versionadded:: 2.4.0
Returns
-------
tuple[CoordinateOperation]:
The operations in a concatenated operation.
"""
if self._operations is not None:
return self._operations
self._operations = _get_concatenated_operations(self.context, self.projobj)
return self._operations
def get_last_used_operation(self):
cdef PJ* last_used_operation = proj_trans_get_last_used_operation(self.projobj)
if last_used_operation == NULL:
raise ProjError(
"Last used operation not found. "
"This is likely due to not initiating a transform."
)
cdef PJ_CONTEXT* context = NULL
try:
context = pyproj_context_create()
except:
proj_destroy(last_used_operation)
raise
proj_assign_context(last_used_operation, context)
return _Transformer._from_pj(
context,
last_used_operation,
False,
)
@property
def is_network_enabled(self):
"""
.. versionadded:: 3.0.0
Returns
-------
bool:
If the network is enabled.
"""
return proj_context_is_network_enabled(self.context) == 1
def to_proj4(self, version=ProjVersion.PROJ_5, bint pretty=False):
"""
Convert the projection to a PROJ string.
.. versionadded:: 3.1.0
Parameters
----------
version: pyproj.enums.ProjVersion, default=pyproj.enums.ProjVersion.PROJ_5
The version of the PROJ string output.
pretty: bool, default=False
If True, it will set the output to be a multiline string.
Returns
-------
str:
The PROJ string.
"""
return _to_proj4(self.context, self.projobj, version=version, pretty=pretty)
@staticmethod
def from_crs(
const char* crs_from,
const char* crs_to,
bint always_xy=False,
area_of_interest=None,
str authority=None,
str accuracy=None,
allow_ballpark=None,
bint force_over=False,
only_best=None,
):
"""
Create a transformer from CRS objects
"""
cdef:
PJ_AREA *pj_area_of_interest = NULL
double west_lon_degree
double south_lat_degree
double east_lon_degree
double north_lat_degree
_Transformer transformer = _Transformer()
try:
if area_of_interest is not None:
if not isinstance(area_of_interest, AreaOfInterest):
raise ProjError(
"Area of interest must be of the type "
"pyproj.transformer.AreaOfInterest."
)
pj_area_of_interest = proj_area_create()
west_lon_degree = area_of_interest.west_lon_degree
south_lat_degree = area_of_interest.south_lat_degree
east_lon_degree = area_of_interest.east_lon_degree
north_lat_degree = area_of_interest.north_lat_degree
proj_area_set_bbox(
pj_area_of_interest,
west_lon_degree,
south_lat_degree,
east_lon_degree,
north_lat_degree,
)
transformer.context = pyproj_context_create()
transformer.projobj = proj_create_crs_to_crs(
transformer.context,
crs_from,
crs_to,
pj_area_of_interest,
authority=authority,
accuracy=accuracy,
allow_ballpark=allow_ballpark,
force_over=force_over,
only_best=only_best,
)
finally:
if pj_area_of_interest != NULL:
proj_area_destroy(pj_area_of_interest)
transformer._init_from_crs(always_xy)
return transformer
@staticmethod
cdef _Transformer _from_pj(
PJ_CONTEXT* context,
PJ *transform_pj,
bint always_xy,
):
"""
Create a Transformer from a PJ* object
"""
cdef _Transformer transformer = _Transformer()
transformer.context = context
transformer.projobj = transform_pj
if transformer.projobj == NULL:
raise ProjError("Error creating Transformer.")
transformer._init_from_crs(always_xy)
return transformer
@staticmethod
def from_pipeline(const char *proj_pipeline):
"""
Create Transformer from a PROJ pipeline string.
"""
cdef _Transformer transformer = _Transformer()
transformer.context = pyproj_context_create()
auth_match = _AUTH_CODE_RE.match(proj_pipeline.strip())
if auth_match:
# attempt to create coordinate operation from AUTH:CODE
match_data = auth_match.groupdict()
transformer.projobj = proj_create_from_database(
transformer.context,
cstrencode(match_data["authority"]),
cstrencode(match_data["code"]),
PJ_CATEGORY_COORDINATE_OPERATION,
False,
NULL,
)
if transformer.projobj == NULL:
# initialize projection
transformer.projobj = proj_create(
transformer.context,
proj_pipeline,
)
if transformer.projobj is NULL:
raise ProjError(f"Invalid projection {proj_pipeline}.")
transformer._initialize_from_projobj()
return transformer
def _set_always_xy(self):
"""
Setup the transformer so it has the axis order always in xy order.
"""
cdef PJ* always_xy_pj = proj_normalize_for_visualization(
self.context,
self.projobj,
)
proj_destroy(self.projobj)
self.projobj = always_xy_pj
def _init_from_crs(self, bint always_xy):
"""
Finish initializing transformer properties from CRS objects
"""
if always_xy:
self._set_always_xy()
self._initialize_from_projobj()
@cython.boundscheck(False)
@cython.wraparound(False)
def _transform(
self,
object inx,
object iny,
object inz,
object intime,
object direction,
bint radians,
bint errcheck,
):
if self.id == "noop":
return
cdef:
PJ_DIRECTION pj_direction = get_pj_direction(direction)
PyBuffWriteManager xbuff = PyBuffWriteManager(inx)
PyBuffWriteManager ybuff = PyBuffWriteManager(iny)
PyBuffWriteManager zbuff
PyBuffWriteManager tbuff
Py_ssize_t buflenz
Py_ssize_t buflent
double* zz
double* tt
if inz is not None:
zbuff = PyBuffWriteManager(inz)
buflenz = zbuff.len
zz = zbuff.data
else:
buflenz = xbuff.len
zz = NULL
if intime is not None:
tbuff = PyBuffWriteManager(intime)
buflent = tbuff.len
tt = tbuff.data
else:
buflent = xbuff.len
tt = NULL
if not (xbuff.len == ybuff.len == buflenz == buflent):
raise ProjError('x, y, z, and time must be same size if included.')
cdef Py_ssize_t iii
cdef int errno = 0
with nogil:
# degrees to radians
if not radians and proj_angular_input(self.projobj, pj_direction):
for iii in range(xbuff.len):
xbuff.data[iii] = xbuff.data[iii]*_DG2RAD
ybuff.data[iii] = ybuff.data[iii]*_DG2RAD
# radians to degrees
elif radians and proj_degree_input(self.projobj, pj_direction):
for iii in range(xbuff.len):
xbuff.data[iii] = xbuff.data[iii]*_RAD2DG
ybuff.data[iii] = ybuff.data[iii]*_RAD2DG
proj_errno_reset(self.projobj)
proj_trans_generic(
self.projobj,
pj_direction,
xbuff.data, _DOUBLESIZE, xbuff.len,
ybuff.data, _DOUBLESIZE, ybuff.len,
zz, _DOUBLESIZE, xbuff.len,
tt, _DOUBLESIZE, xbuff.len,
)
errno = proj_errno(self.projobj)
if errcheck and errno:
with gil:
raise ProjError(
f"transform error: {proj_context_errno_string(self.context, errno)}"
)
elif errcheck:
with gil:
if _get_proj_error() is not None:
raise ProjError("transform error")
# radians to degrees
if not radians and proj_angular_output(self.projobj, pj_direction):
for iii in range(xbuff.len):
xbuff.data[iii] = xbuff.data[iii]*_RAD2DG
ybuff.data[iii] = ybuff.data[iii]*_RAD2DG
# degrees to radians
elif radians and proj_degree_output(self.projobj, pj_direction):
for iii in range(xbuff.len):
xbuff.data[iii] = xbuff.data[iii]*_DG2RAD
ybuff.data[iii] = ybuff.data[iii]*_DG2RAD
_clear_proj_error()
@cython.boundscheck(False)
@cython.wraparound(False)
def _transform_point(
self,
object inx,
object iny,
object inz,
object intime,
object direction,
bint radians,
bint errcheck,
):
"""
Optimized to transform a single point between two coordinate systems.
"""
cdef:
double coord_x = inx
double coord_y = iny
double coord_z = 0
double coord_t = HUGE_VAL
tuple expected_numeric_types = (int, float)
# We do the type-checking internally here due to automatically
# casting length-1 arrays to float that we don't want to return scalar for.
# Ex: float(np.array([0])) works and we don't want to accept numpy arrays
if not isinstance(inx, expected_numeric_types):
raise TypeError("Scalar input expected for x")
if not isinstance(iny, expected_numeric_types):
raise TypeError("Scalar input expected for y")
if inz is not None:
if not isinstance(inz, expected_numeric_types):
raise TypeError("Scalar input expected for z")
coord_z = inz
if intime is not None:
if not isinstance(intime, expected_numeric_types):
raise TypeError("Scalar input expected for t")
coord_t = intime
cdef tuple return_data
if self.id == "noop":
return_data = (inx, iny)
if inz is not None:
return_data += (inz,)
if intime is not None:
return_data += (intime,)
return return_data
cdef:
PJ_DIRECTION pj_direction = get_pj_direction(direction)
PJ_COORD projxyout
PJ_COORD projxyin = proj_coord(coord_x, coord_y, coord_z, coord_t)
with nogil:
# degrees to radians
if not radians and proj_angular_input(self.projobj, pj_direction):
projxyin.uv.u *= _DG2RAD
projxyin.uv.v *= _DG2RAD
# radians to degrees
elif radians and proj_degree_input(self.projobj, pj_direction):
projxyin.uv.u *= _RAD2DG
projxyin.uv.v *= _RAD2DG
proj_errno_reset(self.projobj)
projxyout = proj_trans(self.projobj, pj_direction, projxyin)
errno = proj_errno(self.projobj)
if errcheck and errno:
with gil:
raise ProjError(
f"transform error: {proj_context_errno_string(self.context, errno)}"
)
elif errcheck:
with gil:
if _clear_proj_error() is not None:
raise ProjError("transform error")
# radians to degrees
if not radians and proj_angular_output(self.projobj, pj_direction):
projxyout.xy.x *= _RAD2DG
projxyout.xy.y *= _RAD2DG
# degrees to radians
elif radians and proj_degree_output(self.projobj, pj_direction):
projxyout.xy.x *= _DG2RAD
projxyout.xy.y *= _DG2RAD
_clear_proj_error()
return_data = (projxyout.xyzt.x, projxyout.xyzt.y)
if inz is not None:
return_data += (projxyout.xyzt.z,)
if intime is not None:
return_data += (projxyout.xyzt.t,)
return return_data
@cython.boundscheck(False)
@cython.wraparound(False)
def _transform_sequence(
self,
Py_ssize_t stride,
object inseq,
bint switch,
object direction,
bint time_3rd,
bint radians,
bint errcheck,
):
# private function to itransform function
if self.id == "noop":
return
cdef:
PJ_DIRECTION pj_direction = get_pj_direction(direction)
double *x
double *y
double *z
double *tt
if stride < 2:
raise ProjError("coordinates must contain at least 2 values")
cdef:
PyBuffWriteManager coordbuff = PyBuffWriteManager(inseq)
Py_ssize_t npts
Py_ssize_t iii
Py_ssize_t jjj
int errno = 0
npts = coordbuff.len // stride
with nogil:
# degrees to radians
if not radians and proj_angular_input(self.projobj, pj_direction):
for iii in range(npts):
jjj = stride * iii
coordbuff.data[jjj] *= _DG2RAD
coordbuff.data[jjj + 1] *= _DG2RAD
# radians to degrees
elif radians and proj_degree_input(self.projobj, pj_direction):
for iii in range(npts):
jjj = stride * iii
coordbuff.data[jjj] *= _RAD2DG
coordbuff.data[jjj + 1] *= _RAD2DG
if not switch:
x = coordbuff.data
y = coordbuff.data + 1
else:
x = coordbuff.data + 1
y = coordbuff.data
# z coordinate
if stride == 4 or (stride == 3 and not time_3rd):
z = coordbuff.data + 2
else:
z = NULL
# time
if stride == 3 and time_3rd:
tt = coordbuff.data + 2
elif stride == 4:
tt = coordbuff.data + 3
else:
tt = NULL
proj_errno_reset(self.projobj)
proj_trans_generic(
self.projobj,
pj_direction,
x, stride*_DOUBLESIZE, npts,
y, stride*_DOUBLESIZE, npts,
z, stride*_DOUBLESIZE, npts,
tt, stride*_DOUBLESIZE, npts,
)
errno = proj_errno(self.projobj)
if errcheck and errno:
with gil:
raise ProjError(
f"itransform error: {proj_context_errno_string(self.context, errno)}"
)
elif errcheck:
with gil:
if _get_proj_error() is not None:
raise ProjError("itransform error")
# radians to degrees
if not radians and proj_angular_output(self.projobj, pj_direction):
for iii in range(npts):
jjj = stride * iii
coordbuff.data[jjj] *= _RAD2DG
coordbuff.data[jjj + 1] *= _RAD2DG
# degrees to radians
elif radians and proj_degree_output(self.projobj, pj_direction):
for iii in range(npts):
jjj = stride * iii
coordbuff.data[jjj] *= _DG2RAD
coordbuff.data[jjj + 1] *= _DG2RAD
_clear_proj_error()
@cython.boundscheck(False)
@cython.wraparound(False)
def _transform_bounds(
self,
double left,
double bottom,
double right,
double top,
int densify_pts,
bint radians,
bint errcheck,
object direction,
):
cdef PJ_DIRECTION pj_direction = get_pj_direction(direction)
if self.id == "noop" or pj_direction == PJ_IDENT:
return (left, bottom, right, top)
cdef:
int errno = 0
bint success = True
double out_left = left
double out_bottom = bottom
double out_right = right
double out_top = top
with nogil:
# degrees to radians
if not radians and proj_angular_input(self.projobj, pj_direction):
left *= _DG2RAD
bottom *= _DG2RAD
right *= _DG2RAD
top *= _DG2RAD
# radians to degrees
elif radians and proj_degree_input(self.projobj, pj_direction):
left *= _RAD2DG
bottom *= _RAD2DG
right *= _RAD2DG
top *= _RAD2DG
proj_errno_reset(self.projobj)
success = proj_trans_bounds(
self.context,
self.projobj,
pj_direction,
left,
bottom,
right,
top,
&out_left,
&out_bottom,
&out_right,
&out_top,
densify_pts,
)
if not success or errcheck:
errno = proj_errno(self.projobj)
if errno:
with gil:
raise ProjError(
"transform bounds error: "
f"{proj_context_errno_string(self.context, errno)}"
)
else:
with gil:
if _get_proj_error() is not None:
raise ProjError("transform bounds error")