-
-
Notifications
You must be signed in to change notification settings - Fork 3k
/
qgswmtsutils.cpp
714 lines (618 loc) · 23.4 KB
/
qgswmtsutils.cpp
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
/***************************************************************************
qgswmtsutils.cpp
-------------------------
begin : July 23, 2018
copyright : (C) 2018 by René-Luc D'Hont
email : rldhont at 3liz dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgswmtsutils.h"
#include "qgswmtsparameters.h"
#include "qgsconfigcache.h"
#include "qgsserverprojectutils.h"
#include "qgsproject.h"
#include "qgsexception.h"
#include "qgsmapserviceexception.h"
#include "qgscoordinatereferencesystem.h"
#include "qgslayertree.h"
#include "qgslayertreemodel.h"
#include "qgslayertreemodellegendnode.h"
#include "qgssettings.h"
namespace QgsWmts
{
namespace
{
QMap< QString, tileMatrixInfo> populateTileMatrixInfoMap();
QgsCoordinateReferenceSystem wgs84 = QgsCoordinateReferenceSystem::fromOgcWmsCrs( GEO_EPSG_CRS_AUTHID );
constexpr int tileSize = 256;
constexpr double points_to_m = 2.83464567 / 10000.0;
QMap< QString, tileMatrixInfo> tileMatrixInfoMap = populateTileMatrixInfoMap();
}
QString implementationVersion()
{
return QStringLiteral( "1.0.0" );
}
QString serviceUrl( const QgsServerRequest &request, const QgsProject *project )
{
QString href;
if ( project )
{
href = QgsServerProjectUtils::wmtsServiceUrl( *project );
}
// Build default url
if ( href.isEmpty() )
{
QUrl url = request.originalUrl();
QgsWmtsParameters params;
params.load( QUrlQuery( url ) );
params.remove( QgsServerParameter::REQUEST );
params.remove( QgsServerParameter::VERSION_SERVICE );
params.remove( QgsServerParameter::SERVICE );
url.setQuery( params.urlQuery() );
href = url.toString();
}
return href;
}
tileMatrixInfo getTileMatrixInfo( const QString &crsStr, const QgsProject *project )
{
if ( tileMatrixInfoMap.contains( crsStr ) )
return tileMatrixInfoMap[crsStr];
tileMatrixInfo tmi;
tmi.ref = crsStr;
QgsCoordinateReferenceSystem crs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( crsStr );
QgsCoordinateTransform crsTransform( wgs84, crs, project );
try
{
tmi.extent = crsTransform.transformBoundingBox( crs.bounds() );
}
catch ( QgsCsException &cse )
{
Q_UNUSED( cse );
}
tmi.unit = crs.mapUnits();
// calculate tile matrix scale denominator
double scaleDenominator = 0.0;
int colRes = ( tmi.extent.xMaximum() - tmi.extent.xMinimum() ) / tileSize;
int rowRes = ( tmi.extent.yMaximum() - tmi.extent.yMinimum() ) / tileSize;
double unit_to_m = QgsUnitTypes::fromUnitToUnitFactor( tmi.unit, QgsUnitTypes::DistanceMeters );
if ( colRes > rowRes )
scaleDenominator = std::ceil( colRes * unit_to_m / points_to_m );
else
scaleDenominator = std::ceil( rowRes * unit_to_m / points_to_m );
// Update extent to get a square one
QgsRectangle extent = tmi.extent;
double res = points_to_m * scaleDenominator / unit_to_m;
int col = std::ceil( ( extent.xMaximum() - extent.xMinimum() ) / ( tileSize * res ) );
int row = std::ceil( ( extent.yMaximum() - extent.yMinimum() ) / ( tileSize * res ) );
if ( col > 1 || row > 1 )
{
// Update scale
if ( col > row )
{
res = col * res;
scaleDenominator = col * scaleDenominator;
}
else
{
res = row * res;
scaleDenominator = row * scaleDenominator;
}
// set col and row to 1 for the square
col = 1;
row = 1;
}
// Calculate extent
double left = ( extent.xMinimum() + ( extent.xMaximum() - extent.xMinimum() ) / 2.0 ) - ( col / 2.0 ) * ( tileSize * res );
double bottom = ( extent.yMinimum() + ( extent.yMaximum() - extent.yMinimum() ) / 2.0 ) - ( row / 2.0 ) * ( tileSize * res );
double right = ( extent.xMinimum() + ( extent.xMaximum() - extent.xMinimum() ) / 2.0 ) + ( col / 2.0 ) * ( tileSize * res );
double top = ( extent.yMinimum() + ( extent.yMaximum() - extent.yMinimum() ) / 2.0 ) + ( row / 2.0 ) * ( tileSize * res );
tmi.extent = QgsRectangle( left, bottom, right, top );
tmi.scaleDenominator = scaleDenominator;
tileMatrixInfoMap[crsStr] = tmi;
return tmi;
}
tileMatrixSetDef getTileMatrixSet( tileMatrixInfo tmi, double minScale )
{
QList< tileMatrixDef > tileMatrixList;
double scaleDenominator = tmi.scaleDenominator;
QgsRectangle extent = tmi.extent;
QgsUnitTypes::DistanceUnit unit = tmi.unit;
// constant
double unit_to_m = QgsUnitTypes::fromUnitToUnitFactor( tmi.unit, QgsUnitTypes::DistanceMeters );
double resolution = points_to_m * scaleDenominator / unit_to_m;
int column = std::ceil( ( extent.xMaximum() - extent.xMinimum() ) / ( tileSize * resolution ) );
int row = std::ceil( ( extent.yMaximum() - extent.yMinimum() ) / ( tileSize * resolution ) );
while ( scaleDenominator >= minScale )
{
double scale = scaleDenominator;
// Calculate resolution based on scale denominator
double res = resolution;
int col = column;
int r = row;
tileMatrixDef tm;
tm.resolution = res;
tm.scaleDenominator = scale;
tm.col = col;
tm.row = r;
tm.left = extent.xMinimum();
tm.top = extent.yMaximum();
tileMatrixList.append( tm );
scaleDenominator = scale / 2;
resolution = res / 2;
column = col * 2;
row = r * 2;
}
tileMatrixSetDef tms;
tms.ref = tmi.ref;
tms.extent = extent;
tms.unit = unit;
tms.tileMatrixList = tileMatrixList;
return tms;
}
double getProjectMinScale( const QgsProject *project )
{
double scale = -1.0;
// default scales
QgsSettings settings;
QStringList scaleList = settings.value( QStringLiteral( "Map/scales" ), PROJECT_SCALES ).toString().split( ',' );
//load project scales
bool projectScales = project->readBoolEntry( QStringLiteral( "Scales" ), QStringLiteral( "/useProjectScales" ) );
if ( projectScales )
{
scaleList = project->readListEntry( QStringLiteral( "Scales" ), QStringLiteral( "/ScalesList" ) );
}
// get min and max scales
if ( !scaleList.isEmpty() )
{
for ( const QString &scaleText : scaleList )
{
double scaleValue = scaleText.toDouble();
if ( scale == -1.0 )
{
scale = scaleValue;
}
else if ( scaleValue < scale )
{
scale = scaleValue;
}
}
}
if ( scale < 500.0 )
{
return 500.0;
}
return scale;
}
QList< tileMatrixSetDef > getTileMatrixSetList( const QgsProject *project )
{
QList< tileMatrixSetDef > tmsList;
double minScale = project->readNumEntry( QStringLiteral( "WMTSMinScale" ), QStringLiteral( "/" ), -1.0 );
if ( minScale == -1.0 )
{
minScale = getProjectMinScale( project );
}
QStringList crsList = QgsServerProjectUtils::wmsOutputCrsList( *project );
for ( const QString &crsStr : crsList )
{
tileMatrixInfo tmi = getTileMatrixInfo( crsStr, project );
if ( tmi.scaleDenominator > 0.0 )
{
tmsList.append( getTileMatrixSet( tmi, minScale ) );
}
}
return tmsList;
}
QList< layerDef > getWmtsLayerList( QgsServerInterface *serverIface, const QgsProject *project )
{
QList< layerDef > wmtsLayers;
#ifdef HAVE_SERVER_PYTHON_PLUGINS
QgsAccessControl *accessControl = serverIface->accessControls();
#endif
// WMTS Project configuration
bool wmtsProject = project->readBoolEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Project" ) );
// Root Layer name
QString rootLayerName = QgsServerProjectUtils::wmsRootName( *project );
if ( rootLayerName.isEmpty() && !project->title().isEmpty() )
{
rootLayerName = project->title();
}
if ( wmtsProject && !rootLayerName.isEmpty() )
{
layerDef pLayer;
pLayer.id = rootLayerName;
if ( !project->title().isEmpty() )
{
pLayer.title = project->title();
pLayer.abstract = project->title();
}
//transform the project native CRS into WGS84
QgsRectangle projRect = QgsServerProjectUtils::wmsExtent( *project );
QgsCoordinateReferenceSystem projCrs = project->crs();
QgsCoordinateTransform exGeoTransform( projCrs, wgs84, project );
try
{
pLayer.wgs84BoundingRect = exGeoTransform.transformBoundingBox( projRect );
}
catch ( const QgsCsException & )
{
pLayer.wgs84BoundingRect = QgsRectangle( -180, -90, 180, 90 );
}
// Formats
bool wmtsPngProject = project->readBoolEntry( QStringLiteral( "WMTSPngLayers" ), QStringLiteral( "Project" ) );
if ( wmtsPngProject )
pLayer.formats << QStringLiteral( "image/png" );
bool wmtsJpegProject = project->readBoolEntry( QStringLiteral( "WMTSJpegLayers" ), QStringLiteral( "Project" ) );
if ( wmtsJpegProject )
pLayer.formats << QStringLiteral( "image/jpeg" );
// Project is not queryable in WMS
//pLayer.queryable = ( nonIdentifiableLayers.count() != project->count() );
pLayer.queryable = false;
wmtsLayers.append( pLayer );
}
QStringList wmtsGroupNameList = project->readListEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Group" ) );
if ( !wmtsGroupNameList.isEmpty() )
{
QgsLayerTreeGroup *treeRoot = project->layerTreeRoot();
QStringList wmtsPngGroupNameList = project->readListEntry( QStringLiteral( "WMTSPngLayers" ), QStringLiteral( "Group" ) );
QStringList wmtsJpegGroupNameList = project->readListEntry( QStringLiteral( "WMTSJpegLayers" ), QStringLiteral( "Group" ) );
for ( const QString &gName : wmtsGroupNameList )
{
QgsLayerTreeGroup *treeGroup = treeRoot->findGroup( gName );
if ( !treeGroup )
{
continue;
}
layerDef pLayer;
pLayer.id = treeGroup->customProperty( QStringLiteral( "wmsShortName" ) ).toString();
if ( pLayer.id.isEmpty() )
pLayer.id = gName;
pLayer.title = treeGroup->customProperty( QStringLiteral( "wmsTitle" ) ).toString();
if ( pLayer.title.isEmpty() )
pLayer.title = gName;
pLayer.abstract = treeGroup->customProperty( QStringLiteral( "wmsAbstract" ) ).toString();
QgsRectangle wgs84BoundingRect;
bool queryable = false;
double maxScale = 0.0;
double minScale = 0.0;
for ( QgsLayerTreeLayer *layer : treeGroup->findLayers() )
{
QgsMapLayer *l = layer->layer();
if ( !l )
{
continue;
}
//transform the layer native CRS into WGS84
QgsCoordinateReferenceSystem layerCrs = l->crs();
QgsCoordinateTransform exGeoTransform( layerCrs, wgs84, project );
try
{
wgs84BoundingRect.combineExtentWith( exGeoTransform.transformBoundingBox( l->extent() ) );
}
catch ( const QgsCsException & )
{
wgs84BoundingRect.combineExtentWith( QgsRectangle( -180, -90, 180, 90 ) );
}
if ( !queryable && l->flags().testFlag( QgsMapLayer::Identifiable ) )
{
queryable = true;
}
if ( l->hasScaleBasedVisibility() )
{
double lMaxScale = l->maximumScale();
if ( lMaxScale > 0.0 && lMaxScale > maxScale )
{
maxScale = lMaxScale;
}
double lMinScale = l->minimumScale();
if ( lMinScale > 0.0 && ( minScale == 0.0 || lMinScale < minScale ) )
{
minScale = lMinScale;
}
}
}
pLayer.wgs84BoundingRect = wgs84BoundingRect;
pLayer.queryable = queryable;
pLayer.maxScale = maxScale;
pLayer.minScale = minScale;
// Formats
if ( wmtsPngGroupNameList.contains( gName ) )
pLayer.formats << QStringLiteral( "image/png" );
if ( wmtsJpegGroupNameList.contains( gName ) )
pLayer.formats << QStringLiteral( "image/jpeg" );
wmtsLayers.append( pLayer );
}
}
QStringList wmtsLayerIdList = project->readListEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Layer" ) );
QStringList wmtsPngLayerIdList = project->readListEntry( QStringLiteral( "WMTSPngLayers" ), QStringLiteral( "Layer" ) );
QStringList wmtsJpegLayerIdList = project->readListEntry( QStringLiteral( "WMTSJpegLayers" ), QStringLiteral( "Layer" ) );
for ( const QString &lId : wmtsLayerIdList )
{
QgsMapLayer *l = project->mapLayer( lId );
if ( !l )
{
continue;
}
#ifdef HAVE_SERVER_PYTHON_PLUGINS
if ( !accessControl->layerReadPermission( l ) )
{
continue;
}
#endif
layerDef pLayer;
pLayer.id = l->name();
if ( !l->shortName().isEmpty() )
pLayer.id = l->shortName();
pLayer.id = pLayer.id.replace( ' ', '_' );
pLayer.title = l->title();
pLayer.abstract = l->abstract();
//transform the layer native CRS into WGS84
QgsCoordinateReferenceSystem layerCrs = l->crs();
QgsCoordinateTransform exGeoTransform( layerCrs, wgs84, project );
try
{
pLayer.wgs84BoundingRect = exGeoTransform.transformBoundingBox( l->extent() );
}
catch ( const QgsCsException & )
{
pLayer.wgs84BoundingRect = QgsRectangle( -180, -90, 180, 90 );
}
// Formats
if ( wmtsPngLayerIdList.contains( lId ) )
pLayer.formats << QStringLiteral( "image/png" );
if ( wmtsJpegLayerIdList.contains( lId ) )
pLayer.formats << QStringLiteral( "image/jpeg" );
pLayer.queryable = ( l->flags().testFlag( QgsMapLayer::Identifiable ) );
if ( l->hasScaleBasedVisibility() )
{
pLayer.maxScale = l->maximumScale();
pLayer.minScale = l->minimumScale();
}
else
{
pLayer.maxScale = l->maximumScale();
pLayer.minScale = l->minimumScale();
}
wmtsLayers.append( pLayer );
}
return wmtsLayers;
}
tileMatrixSetLinkDef getLayerTileMatrixSetLink( const layerDef layer, const tileMatrixSetDef tms, const QgsProject *project )
{
tileMatrixSetLinkDef tmsl;
QMap< int, tileMatrixLimitDef > tileMatrixLimits;
QgsRectangle rect( layer.wgs84BoundingRect );
if ( tms.ref != QLatin1String( "EPSG:4326" ) )
{
QgsCoordinateReferenceSystem crs = QgsCoordinateReferenceSystem::fromOgcWmsCrs( tms.ref );
QgsCoordinateTransform exGeoTransform( wgs84, crs, project );
try
{
rect = exGeoTransform.transformBoundingBox( layer.wgs84BoundingRect );
}
catch ( const QgsCsException & )
{
return tmsl;
}
}
tmsl.ref = tms.ref;
rect = rect.intersect( tms.extent );
int tmIdx = -1;
for ( const tileMatrixDef &tm : tms.tileMatrixList )
{
++tmIdx;
if ( layer.maxScale > 0.0 && tm.scaleDenominator > layer.maxScale )
{
continue;
}
if ( layer.minScale > 0.0 && tm.scaleDenominator < layer.minScale )
{
continue;
}
double res = tm.resolution;
tileMatrixLimitDef tml;
tml.minCol = std::floor( ( rect.xMinimum() - tm.left ) / ( tileSize * res ) );
tml.maxCol = std::ceil( ( rect.xMaximum() - tm.left ) / ( tileSize * res ) ) - 1;
tml.minRow = std::floor( ( tm.top - rect.yMaximum() ) / ( tileSize * res ) );
tml.maxRow = std::ceil( ( tm.top - rect.yMinimum() ) / ( tileSize * res ) ) - 1;
tileMatrixLimits[tmIdx] = tml;
}
tmsl.tileMatrixLimits = tileMatrixLimits;
return tmsl;
}
QUrlQuery translateWmtsParamToWmsQueryItem( const QString &request, const QgsWmtsParameters ¶ms,
const QgsProject *project, QgsServerInterface *serverIface )
{
//defining Layer
QString layer = params.layer();
//read Layer
if ( layer.isEmpty() )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "Layer is mandatory" ) );
}
//check layer value
bool wmtsProject = project->readBoolEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Project" ) );
QStringList wmtsGroupNameList = project->readListEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Group" ) );
QStringList wmtsLayerIdList = project->readListEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Layer" ) );
QStringList wmtsLayerIds;
if ( wmtsProject )
{
// Root Layer name
QString rootLayerId = QgsServerProjectUtils::wmsRootName( *project );
if ( rootLayerId.isEmpty() )
{
rootLayerId = project->title();
}
if ( !rootLayerId.isEmpty() )
{
wmtsLayerIds << rootLayerId;
}
}
if ( !wmtsGroupNameList.isEmpty() )
{
QgsLayerTreeGroup *treeRoot = project->layerTreeRoot();
for ( const QString &gName : wmtsGroupNameList )
{
QgsLayerTreeGroup *treeGroup = treeRoot->findGroup( gName );
if ( !treeGroup )
{
continue;
}
QString groupLayerId = treeGroup->customProperty( QStringLiteral( "wmsShortName" ) ).toString();
if ( groupLayerId.isEmpty() )
{
groupLayerId = gName;
}
wmtsLayerIds << groupLayerId;
}
}
if ( !wmtsLayerIdList.isEmpty() )
{
#ifdef HAVE_SERVER_PYTHON_PLUGINS
QgsAccessControl *accessControl = serverIface->accessControls();
#endif
for ( const QString &lId : wmtsLayerIdList )
{
QgsMapLayer *l = project->mapLayer( lId );
if ( !l )
{
continue;
}
#ifdef HAVE_SERVER_PYTHON_PLUGINS
if ( !accessControl->layerReadPermission( l ) )
{
continue;
}
#endif
QString layerLayerId = l->shortName();
if ( layerLayerId.isEmpty() )
{
layerLayerId = l->name();
}
wmtsLayerIds << layerLayerId;
}
}
if ( !wmtsLayerIds.contains( layer ) )
{
QString msg = QObject::tr( "Layer '%1' not found" ).arg( layer );
throw QgsBadRequestException( QStringLiteral( "LayerNotDefined" ), msg );
}
//defining Format
QString format = params.formatAsString();
//read Format
if ( format.isEmpty() )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "Format is mandatory" ) );
}
//defining TileMatrixSet ref
QString tms_ref = params.tileMatrixSet();
//read TileMatrixSet
if ( tms_ref.isEmpty() )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "TileMatrixSet is mandatory" ) );
}
// verifying TileMatricSet value
QStringList crsList = QgsServerProjectUtils::wmsOutputCrsList( *project );
if ( !crsList.contains( tms_ref ) )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "TileMatrixSet is unknown" ) );
}
tileMatrixInfo tmi = getTileMatrixInfo( tms_ref, project );
if ( tmi.scaleDenominator == 0.0 )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "TileMatrixSet is unknown" ) );
}
tileMatrixSetDef tms = getTileMatrixSet( tmi, getProjectMinScale( project ) );
//difining TileMatrix idx
int tm_idx = params.tileMatrixAsInt();
//read TileMatrix
if ( tm_idx < 0 || tms.tileMatrixList.count() < tm_idx )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "TileMatrix is unknown" ) );
}
tileMatrixDef tm = tms.tileMatrixList.at( tm_idx );
//defining TileRow
int tr = params.tileRowAsInt();
//read TileRow
if ( tr < 0 || tm.row <= tr )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "TileRow is unknown" ) );
}
//defining TileCol
int tc = params.tileColAsInt();
//read TileCol
if ( tc < 0 || tm.col <= tc )
{
throw QgsRequestNotWellFormedException( QStringLiteral( "TileCol is unknown" ) );
}
double res = tm.resolution;
double minx = tm.left + tc * ( tileSize * res );
double miny = tm.top - ( tr + 1 ) * ( tileSize * res );
double maxx = tm.left + ( tc + 1 ) * ( tileSize * res );
double maxy = tm.top - tr * ( tileSize * res );
QString bbox;
if ( tms.ref == "EPSG:4326" )
{
bbox = qgsDoubleToString( miny, 6 ) + ',' +
qgsDoubleToString( minx, 6 ) + ',' +
qgsDoubleToString( maxy, 6 ) + ',' +
qgsDoubleToString( maxx, 6 );
}
else
{
bbox = qgsDoubleToString( minx, 6 ) + ',' +
qgsDoubleToString( miny, 6 ) + ',' +
qgsDoubleToString( maxx, 6 ) + ',' +
qgsDoubleToString( maxy, 6 );
}
QUrlQuery query;
if ( !params.value( QStringLiteral( "MAP" ) ).isEmpty() )
{
query.addQueryItem( QgsServerParameter::name( QgsServerParameter::MAP ), params.value( QStringLiteral( "MAP" ) ) );
}
query.addQueryItem( QgsServerParameter::name( QgsServerParameter::SERVICE ), QStringLiteral( "WMS" ) );
query.addQueryItem( QgsServerParameter::name( QgsServerParameter::VERSION_SERVICE ), QStringLiteral( "1.3.0" ) );
query.addQueryItem( QgsServerParameter::name( QgsServerParameter::REQUEST ), request );
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::LAYERS ), layer );
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::STYLES ), QString() );
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::CRS ), tms.ref );
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::BBOX ), bbox );
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::WIDTH ), QStringLiteral( "256" ) );
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::HEIGHT ), QStringLiteral( "256" ) );
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::FORMAT ), format );
if ( params.format() == QgsWmtsParameters::Format::PNG )
{
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::TRANSPARENT ), QStringLiteral( "true" ) );
}
query.addQueryItem( QgsWmsParameterForWmts::name( QgsWmsParameterForWmts::DPI ), QStringLiteral( "96" ) );
return query;
}
namespace
{
QMap< QString, tileMatrixInfo> populateTileMatrixInfoMap()
{
QMap< QString, tileMatrixInfo> m;
// Tile matrix information
// to build tile matrix set like Google Mercator or TMS
tileMatrixInfo tmi3857;
tmi3857.ref = QStringLiteral( "EPSG:3857" );
tmi3857.extent = QgsRectangle( -20037508.3427892480, -20037508.3427892480, 20037508.3427892480, 20037508.3427892480 );
tmi3857.scaleDenominator = 559082264.0287179;
tmi3857.unit = QgsUnitTypes::DistanceMeters;
m[tmi3857.ref] = tmi3857;
tileMatrixInfo tmi4326;
tmi4326.ref = QStringLiteral( "EPSG:4326" );
tmi4326.extent = QgsRectangle( -180, -90, 180, 90 );
tmi4326.scaleDenominator = 279541132.0143588675418869;
tmi4326.unit = QgsUnitTypes::DistanceDegrees;
m[tmi4326.ref] = tmi4326;
return m;
}
}
} // namespace QgsWmts