-
-
Notifications
You must be signed in to change notification settings - Fork 3k
/
qgsmeshlayer.cpp
1707 lines (1420 loc) · 57.8 KB
/
qgsmeshlayer.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
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
/***************************************************************************
qgsmeshlayer.cpp
----------------
begin : April 2018
copyright : (C) 2018 by Peter Petrik
email : zilolv at gmail 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 <cstddef>
#include <limits>
#include <QUuid>
#include <QUrl>
#include "qgscolorramp.h"
#include "qgslogger.h"
#include "qgsmaplayerlegend.h"
#include "qgsmaplayerfactory.h"
#include "qgsmaplayerutils.h"
#include "qgsmeshdataprovider.h"
#include "qgsmeshdatasetgroupstore.h"
#include "qgsmeshlayer.h"
#include "qgsmeshlayerrenderer.h"
#include "qgsmeshlayertemporalproperties.h"
#include "qgsmeshlayerutils.h"
#include "qgsmeshtimesettings.h"
#include "qgspainting.h"
#include "qgsproviderregistry.h"
#include "qgsreadwritecontext.h"
#include "qgsstyle.h"
#include "qgstriangularmesh.h"
#include "qgsmesh3daveraging.h"
#include "qgslayermetadataformatter.h"
#include "qgsmesheditor.h"
#include "qgsmessagelog.h"
#include "qgsexpressioncontextutils.h"
QgsMeshLayer::QgsMeshLayer( const QString &meshLayerPath,
const QString &baseName,
const QString &providerKey,
const QgsMeshLayer::LayerOptions &options )
: QgsMapLayer( QgsMapLayerType::MeshLayer, baseName, meshLayerPath ),
mDatasetGroupStore( new QgsMeshDatasetGroupStore( this ) ),
mTemporalProperties( new QgsMeshLayerTemporalProperties( this ) )
{
mShouldValidateCrs = !options.skipCrsValidation;
const QgsDataProvider::ProviderOptions providerOptions { options.transformContext };
QgsDataProvider::ReadFlags flags = QgsDataProvider::ReadFlags();
if ( mReadFlags & QgsMapLayer::FlagTrustLayerMetadata )
{
flags |= QgsDataProvider::FlagTrustDataSource;
}
setDataSourcePrivate( meshLayerPath, baseName, providerKey, providerOptions, flags );
resetDatasetGroupTreeItem();
setLegend( QgsMapLayerLegend::defaultMeshLegend( this ) );
if ( isValid() )
setDefaultRendererSettings( mDatasetGroupStore->datasetGroupIndexes() );
connect( mDatasetGroupStore.get(), &QgsMeshDatasetGroupStore::datasetGroupsAdded, this, &QgsMeshLayer::onDatasetGroupsAdded );
}
void QgsMeshLayer::setDefaultRendererSettings( const QList<int> &groupIndexes )
{
QgsMeshRendererMeshSettings meshSettings;
if ( groupIndexes.count() > 0 )
{
// Show data from the first dataset group
mRendererSettings.setActiveScalarDatasetGroup( 0 );
// If the first dataset group has nan min/max, display the mesh to avoid nothing displayed
const QgsMeshDatasetGroupMetadata &meta = datasetGroupMetadata( 0 );
if ( meta.maximum() == std::numeric_limits<double>::quiet_NaN() &&
meta.minimum() == std::numeric_limits<double>::quiet_NaN() )
meshSettings.setEnabled( true );
}
else
{
// show at least the mesh by default
meshSettings.setEnabled( true );
return;
}
mRendererSettings.setNativeMeshSettings( meshSettings );
// Sets default resample method for scalar dataset
for ( const int i : groupIndexes )
{
const QgsMeshDatasetGroupMetadata meta = datasetGroupMetadata( i );
QgsMeshRendererScalarSettings scalarSettings = mRendererSettings.scalarSettings( i );
switch ( meta.dataType() )
{
case QgsMeshDatasetGroupMetadata::DataOnFaces:
case QgsMeshDatasetGroupMetadata::DataOnVolumes: // data on volumes are averaged to 2D data on faces
scalarSettings.setDataResamplingMethod( QgsMeshRendererScalarSettings::NeighbourAverage );
break;
case QgsMeshDatasetGroupMetadata::DataOnVertices:
scalarSettings.setDataResamplingMethod( QgsMeshRendererScalarSettings::None );
break;
case QgsMeshDatasetGroupMetadata::DataOnEdges:
break;
}
//override color ramp if the values in the dataset group are classified
applyClassificationOnScalarSettings( meta, scalarSettings );
mRendererSettings.setScalarSettings( i, scalarSettings );
}
}
void QgsMeshLayer::createSimplifiedMeshes()
{
if ( mSimplificationSettings.isEnabled() && !hasSimplifiedMeshes() )
{
const double reductionFactor = mSimplificationSettings.reductionFactor();
QVector<QgsTriangularMesh *> simplifyMeshes =
mTriangularMeshes[0]->simplifyMesh( reductionFactor );
for ( int i = 0; i < simplifyMeshes.count() ; ++i )
{
mTriangularMeshes.emplace_back( simplifyMeshes[i] );
}
}
}
bool QgsMeshLayer::hasSimplifiedMeshes() const
{
//First mesh is the base mesh, so if size>1, there is no simplified meshes
return ( mTriangularMeshes.size() > 1 );
}
QgsMeshLayer::~QgsMeshLayer()
{
delete mDataProvider;
}
QgsMeshDataProvider *QgsMeshLayer::dataProvider()
{
return mDataProvider;
}
const QgsMeshDataProvider *QgsMeshLayer::dataProvider() const
{
return mDataProvider;
}
QgsMeshLayer *QgsMeshLayer::clone() const
{
QgsMeshLayer::LayerOptions options;
if ( mDataProvider )
{
options.transformContext = mDataProvider->transformContext();
}
QgsMeshLayer *layer = new QgsMeshLayer( source(), name(), mProviderKey, options );
QgsMapLayer::clone( layer );
return layer;
}
QgsRectangle QgsMeshLayer::extent() const
{
if ( mMeshEditor )
return mMeshEditor->extent();
if ( mDataProvider )
return mDataProvider->extent();
else
{
QgsRectangle rec;
rec.setMinimal();
return rec;
}
}
QString QgsMeshLayer::providerType() const
{
return mProviderKey;
}
bool QgsMeshLayer::supportsEditing() const
{
if ( !mDataProvider )
return false;
if ( mMeshEditor )
return true;
const QgsMeshDriverMetadata driverMetadata = mDataProvider->driverMetadata();
return driverMetadata.capabilities() & QgsMeshDriverMetadata::CanWriteMeshData;
}
bool QgsMeshLayer::addDatasets( const QString &path, const QDateTime &defaultReferenceTime )
{
const bool isTemporalBefore = dataProvider()->temporalCapabilities()->hasTemporalCapabilities();
if ( mDatasetGroupStore->addPersistentDatasets( path ) )
{
mExtraDatasetUri.append( path );
QgsMeshLayerTemporalProperties *temporalProperties = qobject_cast< QgsMeshLayerTemporalProperties * >( mTemporalProperties );
if ( !isTemporalBefore && dataProvider()->temporalCapabilities()->hasTemporalCapabilities() )
{
mTemporalProperties->setDefaultsFromDataProviderTemporalCapabilities(
dataProvider()->temporalCapabilities() );
if ( ! temporalProperties->referenceTime().isValid() )
{
QDateTime referenceTime = defaultReferenceTime;
if ( !defaultReferenceTime.isValid() ) // If project reference time is invalid, use current date
referenceTime = QDateTime( QDate::currentDate(), QTime( 0, 0, 0 ), Qt::UTC );
temporalProperties->setReferenceTime( referenceTime, dataProvider()->temporalCapabilities() );
}
mTemporalProperties->setIsActive( true );
}
emit dataSourceChanged();
return true;
}
return false;
}
bool QgsMeshLayer::addDatasets( QgsMeshDatasetGroup *datasetGroup )
{
if ( mDatasetGroupStore->addDatasetGroup( datasetGroup ) )
{
emit dataChanged();
return true;
}
return false;
}
bool QgsMeshLayer::saveDataset( const QString &path, int datasetGroupIndex, QString driver )
{
return mDatasetGroupStore->saveDatasetGroup( path, datasetGroupIndex, driver );
}
QgsMesh *QgsMeshLayer::nativeMesh()
{
return mNativeMesh.get();
}
const QgsMesh *QgsMeshLayer::nativeMesh() const
{
return mNativeMesh.get();
}
QgsTriangularMesh *QgsMeshLayer::triangularMesh( double minimumTriangleSize ) const
{
for ( const std::unique_ptr<QgsTriangularMesh> &lod : mTriangularMeshes )
{
if ( lod && lod->averageTriangleSize() > minimumTriangleSize )
return lod.get();
}
if ( !mTriangularMeshes.empty() )
return mTriangularMeshes.back().get();
else
return nullptr;
}
int QgsMeshLayer::triangularMeshLevelOfDetailCount() const SIP_SKIP
{
return mTriangularMeshes.size();
}
QgsTriangularMesh *QgsMeshLayer::triangularMeshByLodIndex( int lodIndex ) const SIP_SKIP
{
if ( mTriangularMeshes.empty() )
return nullptr;
if ( lodIndex < 0 )
return mTriangularMeshes.front().get();
if ( lodIndex >= int( mTriangularMeshes.size() ) )
return mTriangularMeshes.back().get();
return mTriangularMeshes.at( lodIndex ).get();
}
void QgsMeshLayer::updateTriangularMesh( const QgsCoordinateTransform &transform )
{
// Native mesh
if ( !mNativeMesh )
{
// lazy loading of mesh data
fillNativeMesh();
}
// Triangular mesh
if ( mTriangularMeshes.empty() )
{
QgsTriangularMesh *baseMesh = new QgsTriangularMesh;
mTriangularMeshes.emplace_back( baseMesh );
}
if ( mTriangularMeshes[0].get()->update( mNativeMesh.get(), transform ) )
mTriangularMeshes.resize( 1 ); //if the base triangular mesh is effectivly updated, remove simplified meshes
createSimplifiedMeshes();
}
QgsMeshLayerRendererCache *QgsMeshLayer::rendererCache()
{
return mRendererCache.get();
}
QgsMeshRendererSettings QgsMeshLayer::rendererSettings() const
{
return mRendererSettings;
}
void QgsMeshLayer::setRendererSettings( const QgsMeshRendererSettings &settings )
{
const int oldActiveScalar = mRendererSettings.activeScalarDatasetGroup();
const int oldActiveVector = mRendererSettings.activeVectorDatasetGroup();
mRendererSettings = settings;
if ( oldActiveScalar != mRendererSettings.activeScalarDatasetGroup() )
emit activeScalarDatasetGroupChanged( mRendererSettings.activeScalarDatasetGroup() );
if ( oldActiveVector != mRendererSettings.activeVectorDatasetGroup() )
emit activeVectorDatasetGroupChanged( mRendererSettings.activeVectorDatasetGroup() );
emit rendererChanged();
triggerRepaint();
}
QgsMeshTimeSettings QgsMeshLayer::timeSettings() const
{
return mTimeSettings;
}
void QgsMeshLayer::setTimeSettings( const QgsMeshTimeSettings &settings )
{
mTimeSettings = settings;
emit timeSettingsChanged();
}
QString QgsMeshLayer::formatTime( double hours )
{
if ( dataProvider() && dataProvider()->temporalCapabilities()->hasReferenceTime() )
return QgsMeshLayerUtils::formatTime( hours, mTemporalProperties->referenceTime(), mTimeSettings );
else
return QgsMeshLayerUtils::formatTime( hours, QDateTime(), mTimeSettings );
}
int QgsMeshLayer::datasetGroupCount() const
{
return mDatasetGroupStore->datasetGroupCount();
}
int QgsMeshLayer::extraDatasetGroupCount() const
{
return mDatasetGroupStore->extraDatasetGroupCount();
}
QList<int> QgsMeshLayer::datasetGroupsIndexes() const
{
return mDatasetGroupStore->datasetGroupIndexes();
}
QList<int> QgsMeshLayer::enabledDatasetGroupsIndexes() const
{
return mDatasetGroupStore->enabledDatasetGroupIndexes();
}
QgsMeshDatasetGroupMetadata QgsMeshLayer::datasetGroupMetadata( const QgsMeshDatasetIndex &index ) const
{
return mDatasetGroupStore->datasetGroupMetadata( index );
}
int QgsMeshLayer::datasetCount( const QgsMeshDatasetIndex &index ) const
{
return mDatasetGroupStore->datasetCount( index.group() );
}
QgsMeshDatasetMetadata QgsMeshLayer::datasetMetadata( const QgsMeshDatasetIndex &index ) const
{
return mDatasetGroupStore->datasetMetadata( index );
}
QgsMeshDatasetValue QgsMeshLayer::datasetValue( const QgsMeshDatasetIndex &index, int valueIndex ) const
{
return mDatasetGroupStore->datasetValue( index, valueIndex );
}
QgsMeshDataBlock QgsMeshLayer::datasetValues( const QgsMeshDatasetIndex &index, int valueIndex, int count ) const
{
return mDatasetGroupStore->datasetValues( index, valueIndex, count );
}
QgsMesh3dDataBlock QgsMeshLayer::dataset3dValues( const QgsMeshDatasetIndex &index, int faceIndex, int count ) const
{
return mDatasetGroupStore->dataset3dValues( index, faceIndex, count );
}
QgsMeshDataBlock QgsMeshLayer::areFacesActive( const QgsMeshDatasetIndex &index, int faceIndex, int count ) const
{
return mDatasetGroupStore->areFacesActive( index, faceIndex, count );
}
bool QgsMeshLayer::isFaceActive( const QgsMeshDatasetIndex &index, int faceIndex ) const
{
return mDatasetGroupStore->isFaceActive( index, faceIndex );
}
QgsMeshDatasetValue QgsMeshLayer::datasetValue( const QgsMeshDatasetIndex &index, const QgsPointXY &point, double searchRadius ) const
{
QgsMeshDatasetValue value;
const QgsTriangularMesh *mesh = triangularMesh();
if ( mesh && index.isValid() )
{
if ( contains( QgsMesh::ElementType::Edge ) )
{
const QgsRectangle searchRectangle( point.x() - searchRadius, point.y() - searchRadius, point.x() + searchRadius, point.y() + searchRadius );
return dataset1dValue( index, point, searchRadius );
}
const int faceIndex = mesh->faceIndexForPoint_v2( point ) ;
if ( faceIndex >= 0 )
{
const int nativeFaceIndex = mesh->trianglesToNativeFaces().at( faceIndex );
const QgsMeshDatasetGroupMetadata::DataType dataType = datasetGroupMetadata( index ).dataType();
if ( isFaceActive( index, nativeFaceIndex ) )
{
switch ( dataType )
{
case QgsMeshDatasetGroupMetadata::DataOnFaces:
{
value = datasetValue( index, nativeFaceIndex );
}
break;
case QgsMeshDatasetGroupMetadata::DataOnVertices:
{
const QgsMeshFace &face = mesh->triangles()[faceIndex];
const int v1 = face[0], v2 = face[1], v3 = face[2];
const QgsPoint p1 = mesh->vertices()[v1], p2 = mesh->vertices()[v2], p3 = mesh->vertices()[v3];
const QgsMeshDatasetValue val1 = datasetValue( index, v1 );
const QgsMeshDatasetValue val2 = datasetValue( index, v2 );
const QgsMeshDatasetValue val3 = datasetValue( index, v3 );
const double x = QgsMeshLayerUtils::interpolateFromVerticesData( p1, p2, p3, val1.x(), val2.x(), val3.x(), point );
double y = std::numeric_limits<double>::quiet_NaN();
const bool isVector = datasetGroupMetadata( index ).isVector();
if ( isVector )
y = QgsMeshLayerUtils::interpolateFromVerticesData( p1, p2, p3, val1.y(), val2.y(), val3.y(), point );
value = QgsMeshDatasetValue( x, y );
}
break;
case QgsMeshDatasetGroupMetadata::DataOnVolumes:
{
const QgsMesh3dAveragingMethod *avgMethod = mRendererSettings.averagingMethod();
if ( avgMethod )
{
const QgsMesh3dDataBlock block3d = dataset3dValues( index, nativeFaceIndex, 1 );
const QgsMeshDataBlock block2d = avgMethod->calculate( block3d );
if ( block2d.isValid() )
{
value = block2d.value( 0 );
}
}
}
break;
default:
break;
}
}
}
}
return value;
}
QgsMesh3dDataBlock QgsMeshLayer::dataset3dValue( const QgsMeshDatasetIndex &index, const QgsPointXY &point ) const
{
QgsMesh3dDataBlock block3d;
const QgsTriangularMesh *baseTriangularMesh = triangularMesh();
if ( baseTriangularMesh && dataProvider() && dataProvider()->isValid() && index.isValid() )
{
const QgsMeshDatasetGroupMetadata::DataType dataType = datasetGroupMetadata( index ).dataType();
if ( dataType == QgsMeshDatasetGroupMetadata::DataOnVolumes )
{
const int faceIndex = baseTriangularMesh->faceIndexForPoint_v2( point );
if ( faceIndex >= 0 )
{
const int nativeFaceIndex = baseTriangularMesh->trianglesToNativeFaces().at( faceIndex );
block3d = dataset3dValues( index, nativeFaceIndex, 1 );
}
}
}
return block3d;
}
QgsMeshDatasetValue QgsMeshLayer::dataset1dValue( const QgsMeshDatasetIndex &index, const QgsPointXY &point, double searchRadius ) const
{
QgsMeshDatasetValue value;
QgsPointXY projectedPoint;
const int selectedIndex = closestEdge( point, searchRadius, projectedPoint );
const QgsTriangularMesh *mesh = triangularMesh();
if ( selectedIndex >= 0 )
{
const QgsMeshDatasetGroupMetadata::DataType dataType = datasetGroupMetadata( index ).dataType();
switch ( dataType )
{
case QgsMeshDatasetGroupMetadata::DataOnEdges:
{
value = datasetValue( index, selectedIndex );
}
break;
case QgsMeshDatasetGroupMetadata::DataOnVertices:
{
const QgsMeshEdge &edge = mesh->edges()[selectedIndex];
const int v1 = edge.first, v2 = edge.second;
const QgsPoint p1 = mesh->vertices()[v1], p2 = mesh->vertices()[v2];
const QgsMeshDatasetValue val1 = datasetValue( index, v1 );
const QgsMeshDatasetValue val2 = datasetValue( index, v2 );
const double edgeLength = p1.distance( p2 );
const double dist1 = p1.distance( projectedPoint.x(), projectedPoint.y() );
value = QgsMeshLayerUtils::interpolateFromVerticesData( dist1 / edgeLength, val1, val2 );
}
break;
default:
break;
}
}
return value;
}
void QgsMeshLayer::setTransformContext( const QgsCoordinateTransformContext &transformContext )
{
if ( mDataProvider )
mDataProvider->setTransformContext( transformContext );
invalidateWgs84Extent();
}
QgsMeshDatasetIndex QgsMeshLayer::datasetIndexAtTime( const QgsDateTimeRange &timeRange, int datasetGroupIndex ) const
{
if ( ! mTemporalProperties->isActive() )
return QgsMeshDatasetIndex( datasetGroupIndex, -1 );
const QDateTime layerReferenceTime = mTemporalProperties->referenceTime();
QDateTime utcTime = timeRange.begin();
if ( utcTime.timeSpec() != Qt::UTC )
utcTime.setTimeSpec( Qt::UTC );
const qint64 startTime = layerReferenceTime.msecsTo( utcTime );
return mDatasetGroupStore->datasetIndexAtTime( startTime, datasetGroupIndex, mTemporalProperties->matchingMethod() );
}
QgsMeshDatasetIndex QgsMeshLayer::datasetIndexAtRelativeTime( const QgsInterval &relativeTime, int datasetGroupIndex ) const
{
qint64 usedRelativeTime = relativeTime.seconds() * 1000;
//adjust relative time if layer reference time is different from provider reference time
if ( mTemporalProperties->referenceTime().isValid() &&
mDataProvider &&
mDataProvider->isValid() &&
mTemporalProperties->referenceTime() != mDataProvider->temporalCapabilities()->referenceTime() )
usedRelativeTime = usedRelativeTime + mTemporalProperties->referenceTime().msecsTo( mDataProvider->temporalCapabilities()->referenceTime() );
return mDatasetGroupStore->datasetIndexAtTime( relativeTime.seconds() * 1000, datasetGroupIndex, mTemporalProperties->matchingMethod() );
}
void QgsMeshLayer::applyClassificationOnScalarSettings( const QgsMeshDatasetGroupMetadata &meta, QgsMeshRendererScalarSettings &scalarSettings ) const
{
if ( meta.extraOptions().contains( QStringLiteral( "classification" ) ) )
{
QgsColorRampShader colorRampShader = scalarSettings.colorRampShader();
QgsColorRamp *colorRamp = colorRampShader.sourceColorRamp();
const QStringList classes = meta.extraOptions()[QStringLiteral( "classification" )].split( QStringLiteral( ";;" ) );
QString units;
if ( meta.extraOptions().contains( QStringLiteral( "units" ) ) )
units = meta.extraOptions()[ QStringLiteral( "units" )];
QVector<QVector<double>> bounds;
for ( const QString &classe : classes )
{
const QStringList boundsStr = classe.split( ',' );
QVector<double> bound;
for ( const QString &boundStr : boundsStr )
bound.append( boundStr.toDouble() );
bounds.append( bound );
}
if ( ( bounds.count() == 1 && bounds.first().count() > 2 ) || // at least a class with two value
( bounds.count() > 1 ) ) // or at least two classes
{
const QVector<double> firstClass = bounds.first();
const QVector<double> lastClass = bounds.last();
const double minValue = firstClass.count() > 1 ? ( firstClass.first() + firstClass.last() ) / 2 : firstClass.first();
const double maxValue = lastClass.count() > 1 ? ( lastClass.first() + lastClass.last() ) / 2 : lastClass.first();
const double diff = maxValue - minValue;
QList<QgsColorRampShader::ColorRampItem> colorRampItemlist;
for ( int i = 0; i < bounds.count(); ++i )
{
const QVector<double> &boundClass = bounds.at( i );
QgsColorRampShader::ColorRampItem item;
item.value = i + 1;
if ( !boundClass.isEmpty() )
{
const double scalarValue = ( boundClass.first() + boundClass.last() ) / 2;
item.color = colorRamp->color( ( scalarValue - minValue ) / diff );
if ( i != 0 && i < bounds.count() - 1 ) //The first and last labels are treated after
{
item.label = QString( ( "%1 - %2 %3" ) ).
arg( QString::number( boundClass.first() ) ).
arg( QString::number( boundClass.last() ) ).
arg( units );
}
}
colorRampItemlist.append( item );
}
//treat first and last labels
if ( firstClass.count() == 1 )
colorRampItemlist.first().label = QObject::tr( "below %1 %2" ).
arg( QString::number( firstClass.first() ) ).
arg( units );
else
{
colorRampItemlist.first().label = QString( ( "%1 - %2 %3" ) ).
arg( QString::number( firstClass.first() ) ).
arg( QString::number( firstClass.last() ) ).
arg( units );
}
if ( lastClass.count() == 1 )
colorRampItemlist.last().label = QObject::tr( "above %1 %2" ).
arg( QString::number( lastClass.first() ) ).
arg( units );
else
{
colorRampItemlist.last().label = QString( ( "%1 - %2 %3" ) ).
arg( QString::number( lastClass.first() ) ).
arg( QString::number( lastClass.last() ) ).
arg( units );
}
colorRampShader.setMinimumValue( 0 );
colorRampShader.setMaximumValue( colorRampItemlist.count() - 1 );
scalarSettings.setClassificationMinimumMaximum( 0, colorRampItemlist.count() - 1 );
colorRampShader.setColorRampItemList( colorRampItemlist );
colorRampShader.setColorRampType( QgsColorRampShader::Exact );
colorRampShader.setClassificationMode( QgsColorRampShader::EqualInterval );
}
scalarSettings.setColorRampShader( colorRampShader );
scalarSettings.setDataResamplingMethod( QgsMeshRendererScalarSettings::None );
}
}
QgsMeshDatasetIndex QgsMeshLayer::activeScalarDatasetAtTime( const QgsDateTimeRange &timeRange ) const
{
if ( mTemporalProperties->isActive() )
return datasetIndexAtTime( timeRange, mRendererSettings.activeScalarDatasetGroup() );
else
return QgsMeshDatasetIndex( mRendererSettings.activeScalarDatasetGroup(), mStaticScalarDatasetIndex );
}
QgsMeshDatasetIndex QgsMeshLayer::activeVectorDatasetAtTime( const QgsDateTimeRange &timeRange ) const
{
if ( mTemporalProperties->isActive() )
return datasetIndexAtTime( timeRange, mRendererSettings.activeVectorDatasetGroup() );
else
return QgsMeshDatasetIndex( mRendererSettings.activeVectorDatasetGroup(), mStaticVectorDatasetIndex );
}
void QgsMeshLayer::fillNativeMesh()
{
Q_ASSERT( !mNativeMesh );
mNativeMesh.reset( new QgsMesh() );
if ( !( dataProvider() && dataProvider()->isValid() ) )
return;
dataProvider()->populateMesh( mNativeMesh.get() );
}
void QgsMeshLayer::onDatasetGroupsAdded( const QList<int> &datasetGroupIndexes )
{
// assign default style to new dataset groups
for ( int i = 0; i < datasetGroupIndexes.count(); ++i )
assignDefaultStyleToDatasetGroup( datasetGroupIndexes.at( i ) );
temporalProperties()->setIsActive( mDatasetGroupStore->hasTemporalCapabilities() );
emit rendererChanged();
}
void QgsMeshLayer::onMeshEdited()
{
mRendererCache.reset( new QgsMeshLayerRendererCache() );
emit layerModified();
triggerRepaint();
trigger3DUpdate();
}
QgsMeshDatasetGroupTreeItem *QgsMeshLayer::datasetGroupTreeRootItem() const
{
return mDatasetGroupStore->datasetGroupTreeItem();
}
void QgsMeshLayer::setDatasetGroupTreeRootItem( QgsMeshDatasetGroupTreeItem *rootItem )
{
mDatasetGroupStore->setDatasetGroupTreeItem( rootItem );
updateActiveDatasetGroups();
}
int QgsMeshLayer::closestEdge( const QgsPointXY &point, double searchRadius, QgsPointXY &projectedPoint ) const
{
const QgsRectangle searchRectangle( point.x() - searchRadius, point.y() - searchRadius, point.x() + searchRadius, point.y() + searchRadius );
const QgsTriangularMesh *mesh = triangularMesh();
// search for the closest edge in search area from point
const QList<int> edgeIndexes = mesh->edgeIndexesForRectangle( searchRectangle );
int selectedIndex = -1;
if ( mesh->contains( QgsMesh::Edge ) &&
mDataProvider->isValid() )
{
double sqrMaxDistFromPoint = pow( searchRadius, 2 );
for ( const int edgeIndex : edgeIndexes )
{
const QgsMeshEdge &edge = mesh->edges().at( edgeIndex );
const QgsMeshVertex &vertex1 = mesh->vertices()[edge.first];
const QgsMeshVertex &vertex2 = mesh->vertices()[edge.second];
QgsPointXY projPoint;
const double sqrDist = point.sqrDistToSegment( vertex1.x(), vertex1.y(), vertex2.x(), vertex2.y(), projPoint );
if ( sqrDist < sqrMaxDistFromPoint )
{
selectedIndex = edgeIndex;
projectedPoint = projPoint;
sqrMaxDistFromPoint = sqrDist;
}
}
}
return selectedIndex;
}
QgsMeshDatasetIndex QgsMeshLayer::staticVectorDatasetIndex() const
{
return QgsMeshDatasetIndex( mRendererSettings.activeVectorDatasetGroup(), mStaticVectorDatasetIndex );
}
void QgsMeshLayer::setReferenceTime( const QDateTime &referenceTime )
{
if ( auto *lDataProvider = dataProvider() )
mTemporalProperties->setReferenceTime( referenceTime, lDataProvider->temporalCapabilities() );
else
mTemporalProperties->setReferenceTime( referenceTime, nullptr );
}
void QgsMeshLayer::setTemporalMatchingMethod( const QgsMeshDataProviderTemporalCapabilities::MatchingTemporalDatasetMethod &matchingMethod )
{
mTemporalProperties->setMatchingMethod( matchingMethod );
}
QgsPointXY QgsMeshLayer::snapOnVertex( const QgsPointXY &point, double searchRadius )
{
const QgsTriangularMesh *mesh = triangularMesh();
QgsPointXY exactPosition;
if ( !mesh )
return exactPosition;
const QgsRectangle rectangle( point.x() - searchRadius, point.y() - searchRadius, point.x() + searchRadius, point.y() + searchRadius );
double maxDistance = searchRadius;
//attempt to snap on edges's vertices
const QList<int> edgeIndexes = mesh->edgeIndexesForRectangle( rectangle );
for ( const int edgeIndex : edgeIndexes )
{
const QgsMeshEdge &edge = mesh->edges().at( edgeIndex );
const QgsMeshVertex &vertex1 = mesh->vertices()[edge.first];
const QgsMeshVertex &vertex2 = mesh->vertices()[edge.second];
const double dist1 = point.distance( vertex1 );
const double dist2 = point.distance( vertex2 );
if ( dist1 < maxDistance )
{
maxDistance = dist1;
exactPosition = vertex1;
}
if ( dist2 < maxDistance )
{
maxDistance = dist2;
exactPosition = vertex2;
}
}
//attempt to snap on face's vertices
const QList<int> faceIndexes = mesh->faceIndexesForRectangle( rectangle );
for ( const int faceIndex : faceIndexes )
{
const QgsMeshFace &face = mesh->triangles().at( faceIndex );
for ( int i = 0; i < 3; ++i )
{
const QgsMeshVertex &vertex = mesh->vertices()[face.at( i )];
const double dist = point.distance( vertex );
if ( dist < maxDistance )
{
maxDistance = dist;
exactPosition = vertex;
}
}
}
return exactPosition;
}
QgsPointXY QgsMeshLayer::snapOnEdge( const QgsPointXY &point, double searchRadius )
{
QgsPointXY projectedPoint;
closestEdge( point, searchRadius, projectedPoint );
return projectedPoint;
}
QgsPointXY QgsMeshLayer::snapOnFace( const QgsPointXY &point, double searchRadius )
{
const QgsTriangularMesh *mesh = triangularMesh();
QgsPointXY centroidPosition;
if ( !mesh )
return centroidPosition;
const QgsRectangle rectangle( point.x() - searchRadius, point.y() - searchRadius, point.x() + searchRadius, point.y() + searchRadius );
double maxDistance = std::numeric_limits<double>::max();
const QList<int> faceIndexes = mesh->faceIndexesForRectangle( rectangle );
for ( const int faceIndex : faceIndexes )
{
const int nativefaceIndex = mesh->trianglesToNativeFaces().at( faceIndex );
if ( nativefaceIndex < 0 && nativefaceIndex >= mesh->faceCentroids().count() )
continue;
const QgsPointXY centroid = mesh->faceCentroids()[nativefaceIndex];
const double dist = point.distance( centroid );
if ( dist < maxDistance )
{
maxDistance = dist;
centroidPosition = centroid;
}
}
return centroidPosition;
}
void QgsMeshLayer::resetDatasetGroupTreeItem()
{
mDatasetGroupStore->resetDatasetGroupTreeItem();
updateActiveDatasetGroups();
}
QgsInterval QgsMeshLayer::firstValidTimeStep() const
{
if ( !mDataProvider )
return QgsInterval();
const int groupCount = mDataProvider->datasetGroupCount();
for ( int i = 0; i < groupCount; ++i )
{
const qint64 timeStep = mDataProvider->temporalCapabilities()->firstTimeStepDuration( i );
if ( timeStep > 0 )
return QgsInterval( timeStep, QgsUnitTypes::TemporalMilliseconds );
}
return QgsInterval();
}
QgsInterval QgsMeshLayer::datasetRelativeTime( const QgsMeshDatasetIndex &index )
{
const qint64 time = mDatasetGroupStore->datasetRelativeTime( index );
if ( time == INVALID_MESHLAYER_TIME )
return QgsInterval();
else
return QgsInterval( time, QgsUnitTypes::TemporalMilliseconds );
}
qint64 QgsMeshLayer::datasetRelativeTimeInMilliseconds( const QgsMeshDatasetIndex &index )
{
return mDatasetGroupStore->datasetRelativeTime( index );
}
bool QgsMeshLayer::startFrameEditing( const QgsCoordinateTransform &transform )
{
if ( !supportsEditing() )
{
QgsMessageLog::logMessage( QObject::tr( "Mesh layer \"%1\" not support mesh editing" ).arg( name() ) );
return false;
}
if ( mMeshEditor )
{
QgsMessageLog::logMessage( QObject::tr( "Mesh layer \"%1\" already in editing mode" ).arg( name() ) );
return false;
}
updateTriangularMesh( transform );
mMeshEditor = new QgsMeshEditor( this );
const QgsMeshEditingError error = mMeshEditor->initialize();
if ( error.errorType != Qgis::MeshEditingErrorType::NoError )
{
mMeshEditor->deleteLater();
mMeshEditor = nullptr;
QgsMessageLog::logMessage( QObject::tr( "Unable to start editing of mesh layer \"%1\"." ).arg( name() ), QString(), Qgis::MessageLevel::Critical );
return false;
}
// During editing, we don't need anymore the provider data. Mesh frame data is stored in the mesh editor.
mDataProvider->close();
// All dataset group are removed and replace by a unique virtual dataset group that provide vertices elevation value.
mExtraDatasetUri.clear();
mDatasetGroupStore.reset( new QgsMeshDatasetGroupStore( this ) );
mDatasetGroupStore->addDatasetGroup( new QgsMeshVerticesElevationDatasetGroup( tr( "vertices Z value" ), mNativeMesh.get() ) );
resetDatasetGroupTreeItem();
connect( mMeshEditor, &QgsMeshEditor::meshEdited, this, &QgsMeshLayer::onMeshEdited );
emit editingStarted();
return true;
}
bool QgsMeshLayer::commitFrameEditing( const QgsCoordinateTransform &transform, bool continueEditing )
{
if ( !mMeshEditor->checkConsistency() )
return false;
stopFrameEditing( transform );
if ( !mDataProvider )
return false;
const bool res = mDataProvider->saveMeshFrame( *mNativeMesh.get() );
if ( continueEditing )
{
mMeshEditor->initialize();
emit layerModified();
return res;
}
mMeshEditor->deleteLater();
mMeshEditor = nullptr;
emit editingStopped();
mDataProvider->reloadData();
mDataProvider->populateMesh( mNativeMesh.get() );
mDatasetGroupStore.reset( new QgsMeshDatasetGroupStore( this ) );
mDatasetGroupStore->setPersistentProvider( mDataProvider, QStringList() );
resetDatasetGroupTreeItem();
return true;
}
bool QgsMeshLayer::rollBackFrameEditing( const QgsCoordinateTransform &transform, bool continueEditing )
{
stopFrameEditing( transform );
if ( !mDataProvider )
return false;
mDataProvider->reloadData();
mDataProvider->populateMesh( mNativeMesh.get() );
updateTriangularMesh( transform );
if ( continueEditing )
{
return mMeshEditor->initialize() == QgsMeshEditingError();
}
else
{
mMeshEditor->deleteLater();
mMeshEditor = nullptr;
emit editingStopped();
mDatasetGroupStore.reset( new QgsMeshDatasetGroupStore( this ) );
mDatasetGroupStore->setPersistentProvider( mDataProvider, QStringList() );
resetDatasetGroupTreeItem();
return true;
}
}
void QgsMeshLayer::stopFrameEditing( const QgsCoordinateTransform &transform )
{
if ( !mMeshEditor )
return;