QGIS API Documentation 3.41.0-Master (3440c17df1d)
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qgspointcloudlayer.cpp
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1/***************************************************************************
2 qgspointcloudlayer.cpp
3 --------------------
4 begin : October 2020
5 copyright : (C) 2020 by Peter Petrik
6 email : zilolv at gmail dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18#include "qgspointcloudlayer.h"
19#include "moc_qgspointcloudlayer.cpp"
21#include "qgspointcloudindex.h"
23#include "qgsrectangle.h"
25#include "qgsproviderregistry.h"
26#include "qgslogger.h"
29#include "qgsruntimeprofiler.h"
30#include "qgsapplication.h"
31#include "qgspainting.h"
34#include "qgsmaplayerlegend.h"
35#include "qgsxmlutils.h"
36#include "qgsmaplayerfactory.h"
39#include "qgsmessagelog.h"
40#include "qgstaskmanager.h"
41#include "qgsthreadingutils.h"
43#ifdef HAVE_COPC
45#endif
46
47#include <QUrl>
48
50 const QString &baseName,
51 const QString &providerLib,
53 : QgsMapLayer( Qgis::LayerType::PointCloud, baseName, uri )
54 , mElevationProperties( new QgsPointCloudLayerElevationProperties( this ) )
55 , mLayerOptions( options )
56{
57 if ( !uri.isEmpty() && !providerLib.isEmpty() )
58 {
59 const QgsDataProvider::ProviderOptions providerOptions { options.transformContext };
60 Qgis::DataProviderReadFlags providerFlags;
61 if ( options.loadDefaultStyle )
62 {
64 }
65 setDataSource( uri, baseName, providerLib, providerOptions, providerFlags );
66 }
67
70}
71
73{
74 if ( QgsTask *task = QgsApplication::taskManager()->task( mStatsCalculationTask ) )
75 {
76 mStatsCalculationTask = 0;
77 task->cancel();
78 task->waitForFinished();
79 }
80}
81
83{
85
86 QgsPointCloudLayer *layer = new QgsPointCloudLayer( source(), name(), mProviderKey, mLayerOptions );
87 QgsMapLayer::clone( layer );
88
89 if ( mRenderer )
90 layer->setRenderer( mRenderer->clone() );
91
92 layer->mElevationProperties = mElevationProperties->clone();
93 layer->mElevationProperties->setParent( layer );
94
95 layer->mLayerOptions = mLayerOptions;
96 layer->mSync3DRendererTo2DRenderer = mSync3DRendererTo2DRenderer;
97
98 return layer;
99}
100
102{
104
105 if ( !mDataProvider )
106 return QgsRectangle();
107
108 return mDataProvider->extent();
109}
110
112{
114
115 if ( mRenderer->type() != QLatin1String( "extent" ) )
116 loadIndexesForRenderContext( rendererContext );
117
118 return new QgsPointCloudLayerRenderer( this, rendererContext );
119}
120
127
129{
130 // BAD! 2D rendering of point clouds is NOT thread safe
132
133 return mDataProvider.get();
134}
135
137{
139
140 return mDataProvider.get();
141}
142
143bool QgsPointCloudLayer::readXml( const QDomNode &layerNode, QgsReadWriteContext &context )
144{
146
147 // create provider
148 const QDomNode pkeyNode = layerNode.namedItem( QStringLiteral( "provider" ) );
149 mProviderKey = pkeyNode.toElement().text();
150
152 {
153 const QgsDataProvider::ProviderOptions providerOptions { context.transformContext() };
155 // read extent
157 {
158 const QDomNode extentNode = layerNode.namedItem( QStringLiteral( "extent" ) );
159 if ( !extentNode.isNull() )
160 {
161 // get the extent
162 const QgsRectangle mbr = QgsXmlUtils::readRectangle( extentNode.toElement() );
163
164 // store the extent
165 setExtent( mbr );
166 }
167 }
168
170 const QDomNode subset = layerNode.namedItem( QStringLiteral( "subset" ) );
171 const QString subsetText = subset.toElement().text();
172 if ( !subsetText.isEmpty() )
173 setSubsetString( subsetText );
174 }
175
176 if ( !isValid() )
177 {
178 return false;
179 }
180
181 QString errorMsg;
182 if ( !readSymbology( layerNode, errorMsg, context ) )
183 return false;
184
185 readStyleManager( layerNode );
186 return true;
187}
188
189bool QgsPointCloudLayer::writeXml( QDomNode &layerNode, QDomDocument &doc, const QgsReadWriteContext &context ) const
190{
192
193 QDomElement mapLayerNode = layerNode.toElement();
194 mapLayerNode.setAttribute( QStringLiteral( "type" ), QgsMapLayerFactory::typeToString( Qgis::LayerType::PointCloud ) );
195
196 if ( !subsetString().isEmpty() )
197 {
198 QDomElement subset = doc.createElement( QStringLiteral( "subset" ) );
199 const QDomText subsetText = doc.createTextNode( subsetString() );
200 subset.appendChild( subsetText );
201 layerNode.appendChild( subset );
202 }
203 if ( mDataProvider )
204 {
205 QDomElement provider = doc.createElement( QStringLiteral( "provider" ) );
206 const QDomText providerText = doc.createTextNode( providerType() );
207 provider.appendChild( providerText );
208 layerNode.appendChild( provider );
209 }
210
211 writeStyleManager( layerNode, doc );
212
213 QString errorMsg;
214 return writeSymbology( layerNode, doc, errorMsg, context );
215}
216
217bool QgsPointCloudLayer::readSymbology( const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories )
218{
220
221 const QDomElement elem = node.toElement();
222
223 readCommonStyle( elem, context, categories );
224
225 readStyle( node, errorMessage, context, categories );
226
227 if ( categories.testFlag( CustomProperties ) )
228 readCustomProperties( node, QStringLiteral( "variable" ) );
229
230 return true;
231}
232
233bool QgsPointCloudLayer::readStyle( const QDomNode &node, QString &, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories )
234{
236
237 bool result = true;
238
239 if ( categories.testFlag( Symbology3D ) )
240 {
241 bool ok;
242 bool sync = node.attributes().namedItem( QStringLiteral( "sync3DRendererTo2DRenderer" ) ).nodeValue().toInt( &ok );
243 if ( ok )
245 }
246
247 if ( categories.testFlag( Symbology ) )
248 {
249 QDomElement rendererElement = node.firstChildElement( QStringLiteral( "renderer" ) );
250 if ( !rendererElement.isNull() )
251 {
252 std::unique_ptr< QgsPointCloudRenderer > r( QgsPointCloudRenderer::load( rendererElement, context ) );
253 if ( r )
254 {
255 setRenderer( r.release() );
256 }
257 else
258 {
259 result = false;
260 }
261 }
262 // make sure layer has a renderer - if none exists, fallback to a default renderer
263 if ( !mRenderer )
264 {
266 }
267 }
268
269 if ( categories.testFlag( Symbology ) )
270 {
271 // get and set the blend mode if it exists
272 const QDomNode blendModeNode = node.namedItem( QStringLiteral( "blendMode" ) );
273 if ( !blendModeNode.isNull() )
274 {
275 const QDomElement e = blendModeNode.toElement();
276 setBlendMode( QgsPainting::getCompositionMode( static_cast< Qgis::BlendMode >( e.text().toInt() ) ) );
277 }
278 }
279
280 // get and set the layer transparency and scale visibility if they exists
281 if ( categories.testFlag( Rendering ) )
282 {
283 const QDomNode layerOpacityNode = node.namedItem( QStringLiteral( "layerOpacity" ) );
284 if ( !layerOpacityNode.isNull() )
285 {
286 const QDomElement e = layerOpacityNode.toElement();
287 setOpacity( e.text().toDouble() );
288 }
289
290 const bool hasScaleBasedVisibiliy { node.attributes().namedItem( QStringLiteral( "hasScaleBasedVisibilityFlag" ) ).nodeValue() == '1' };
291 setScaleBasedVisibility( hasScaleBasedVisibiliy );
292 bool ok;
293 const double maxScale { node.attributes().namedItem( QStringLiteral( "maxScale" ) ).nodeValue().toDouble( &ok ) };
294 if ( ok )
295 {
296 setMaximumScale( maxScale );
297 }
298 const double minScale { node.attributes().namedItem( QStringLiteral( "minScale" ) ).nodeValue().toDouble( &ok ) };
299 if ( ok )
300 {
301 setMinimumScale( minScale );
302 }
303 }
304 return result;
305}
306
307bool QgsPointCloudLayer::writeSymbology( QDomNode &node, QDomDocument &doc, QString &errorMessage,
308 const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories ) const
309{
311
312 Q_UNUSED( errorMessage )
313
314 QDomElement elem = node.toElement();
315 writeCommonStyle( elem, doc, context, categories );
316
317 ( void )writeStyle( node, doc, errorMessage, context, categories );
318
319 return true;
320}
321
322bool QgsPointCloudLayer::writeStyle( QDomNode &node, QDomDocument &doc, QString &, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories ) const
323{
325
326 QDomElement mapLayerNode = node.toElement();
327
328 if ( categories.testFlag( Symbology3D ) )
329 {
330 mapLayerNode.setAttribute( QStringLiteral( "sync3DRendererTo2DRenderer" ), mSync3DRendererTo2DRenderer ? 1 : 0 );
331 }
332
333 if ( categories.testFlag( Symbology ) )
334 {
335 if ( mRenderer )
336 {
337 const QDomElement rendererElement = mRenderer->save( doc, context );
338 node.appendChild( rendererElement );
339 }
340 }
341
342 //save customproperties
343 if ( categories.testFlag( CustomProperties ) )
344 {
345 writeCustomProperties( node, doc );
346 }
347
348 if ( categories.testFlag( Symbology ) )
349 {
350 // add the blend mode field
351 QDomElement blendModeElem = doc.createElement( QStringLiteral( "blendMode" ) );
352 const QDomText blendModeText = doc.createTextNode( QString::number( static_cast< int >( QgsPainting::getBlendModeEnum( blendMode() ) ) ) );
353 blendModeElem.appendChild( blendModeText );
354 node.appendChild( blendModeElem );
355 }
356
357 // add the layer opacity and scale visibility
358 if ( categories.testFlag( Rendering ) )
359 {
360 QDomElement layerOpacityElem = doc.createElement( QStringLiteral( "layerOpacity" ) );
361 const QDomText layerOpacityText = doc.createTextNode( QString::number( opacity() ) );
362 layerOpacityElem.appendChild( layerOpacityText );
363 node.appendChild( layerOpacityElem );
364
365 mapLayerNode.setAttribute( QStringLiteral( "hasScaleBasedVisibilityFlag" ), hasScaleBasedVisibility() ? 1 : 0 );
366 mapLayerNode.setAttribute( QStringLiteral( "maxScale" ), maximumScale() );
367 mapLayerNode.setAttribute( QStringLiteral( "minScale" ), minimumScale() );
368 }
369 return true;
370}
371
373{
375
376 if ( mDataProvider )
377 mDataProvider->setTransformContext( transformContext );
379}
380
381void QgsPointCloudLayer::setDataSourcePrivate( const QString &dataSource, const QString &baseName, const QString &provider,
383{
385
386 if ( mDataProvider )
387 {
388 disconnect( mDataProvider.get(), &QgsPointCloudDataProvider::dataChanged, this, &QgsPointCloudLayer::dataChanged );
389 disconnect( mDataProvider.get(), &QgsPointCloudDataProvider::indexGenerationStateChanged, this, &QgsPointCloudLayer::onPointCloudIndexGenerationStateChanged );
390 }
391
392 setName( baseName );
393 mProviderKey = provider;
394 mDataSource = dataSource;
395
396 if ( mPreloadedProvider )
397 {
398 mDataProvider.reset( qobject_cast< QgsPointCloudDataProvider * >( mPreloadedProvider.release() ) );
399 }
400 else
401 {
402 std::unique_ptr< QgsScopedRuntimeProfile > profile;
403 if ( QgsApplication::profiler()->groupIsActive( QStringLiteral( "projectload" ) ) )
404 profile = std::make_unique< QgsScopedRuntimeProfile >( tr( "Create %1 provider" ).arg( provider ), QStringLiteral( "projectload" ) );
405 mDataProvider.reset( qobject_cast<QgsPointCloudDataProvider *>( QgsProviderRegistry::instance()->createProvider( provider, dataSource, options, flags ) ) );
406 }
407
408 if ( !mDataProvider )
409 {
410 QgsDebugError( QStringLiteral( "Unable to get point cloud data provider" ) );
411 setValid( false );
412 return;
413 }
414
415 mDataProvider->setParent( this );
416 QgsDebugMsgLevel( QStringLiteral( "Instantiated the point cloud data provider plugin" ), 2 );
417
418 setValid( mDataProvider->isValid() );
419 if ( !isValid() )
420 {
421 QgsDebugError( QStringLiteral( "Invalid point cloud provider plugin %1" ).arg( QString( mDataSource.toUtf8() ) ) );
422 setError( mDataProvider->error() );
423 return;
424 }
425
426 connect( mDataProvider.get(), &QgsPointCloudDataProvider::indexGenerationStateChanged, this, &QgsPointCloudLayer::onPointCloudIndexGenerationStateChanged );
427 connect( mDataProvider.get(), &QgsPointCloudDataProvider::dataChanged, this, &QgsPointCloudLayer::dataChanged );
428
429 // Load initial extent, crs and renderer
430 setCrs( mDataProvider->crs() );
432 {
433 setExtent3D( mDataProvider->extent3D() );
434 }
435
436 bool loadDefaultStyleFlag = false;
438 {
439 loadDefaultStyleFlag = true;
440 }
441
442 if ( !mLayerOptions.skipIndexGeneration &&
443 mDataProvider &&
445 mDataProvider->pointCount() > 0 )
446 {
447 mDataProvider->generateIndex();
448 }
449
450 if ( !mLayerOptions.skipStatisticsCalculation &&
451 mDataProvider &&
452 !mDataProvider->hasStatisticsMetadata() &&
454 mDataProvider->pointCount() > 0 )
455 {
456 calculateStatistics();
457 }
458
459 // Note: we load the statistics from the data provider regardless of it being an existing metadata (do not check for hasStatisticsMetadata)
460 // since the X, Y & Z coordinates will be in the header of the dataset
461 if ( mDataProvider && mDataProvider->isValid() && mStatistics.sampledPointsCount() == 0 && mDataProvider->indexingState() == QgsPointCloudDataProvider::Indexed )
462 {
463 mStatistics = mDataProvider->metadataStatistics();
464 }
465
466 if ( !mRenderer || loadDefaultStyleFlag )
467 {
468 std::unique_ptr< QgsScopedRuntimeProfile > profile;
469 if ( QgsApplication::profiler()->groupIsActive( QStringLiteral( "projectload" ) ) )
470 profile = std::make_unique< QgsScopedRuntimeProfile >( tr( "Load layer style" ), QStringLiteral( "projectload" ) );
471
472 bool defaultLoadedFlag = false;
473
474 if ( loadDefaultStyleFlag && isSpatial() && mDataProvider->capabilities() & QgsPointCloudDataProvider::CreateRenderer )
475 {
476 // first try to create a renderer directly from the data provider
477 std::unique_ptr< QgsPointCloudRenderer > defaultRenderer( mDataProvider->createRenderer() );
478 if ( defaultRenderer )
479 {
480 defaultLoadedFlag = true;
481 setRenderer( defaultRenderer.release() );
482 }
483 }
484
485 if ( !defaultLoadedFlag && loadDefaultStyleFlag )
486 {
487 loadDefaultStyle( defaultLoadedFlag );
488 }
489
490 if ( !defaultLoadedFlag )
491 {
492 // all else failed, create default renderer
494 }
495 }
496}
497
498QString QgsPointCloudLayer::encodedSource( const QString &source, const QgsReadWriteContext &context ) const
499{
501
503}
504
505QString QgsPointCloudLayer::decodedSource( const QString &source, const QString &dataProvider, const QgsReadWriteContext &context ) const
506{
508
510}
511
512void QgsPointCloudLayer::onPointCloudIndexGenerationStateChanged( QgsPointCloudDataProvider::PointCloudIndexGenerationState state )
513{
515
516 switch ( state )
517 {
519 {
520 resetRenderer();
521 break;
522 }
524 {
525 QgsError providerError = mDataProvider->error();
526 if ( !providerError.isEmpty() )
527 {
528 setError( providerError );
529 emit raiseError( providerError.summary() );
530 }
531 break;
532 }
534 break;
535 }
536}
537
538
539QString QgsPointCloudLayer::loadDefaultStyle( bool &resultFlag )
540{
542
543 if ( mDataProvider->capabilities() & QgsPointCloudDataProvider::CreateRenderer )
544 {
545 // first try to create a renderer directly from the data provider
546 std::unique_ptr< QgsPointCloudRenderer > defaultRenderer( mDataProvider->createRenderer() );
547 if ( defaultRenderer )
548 {
549 resultFlag = true;
550 setRenderer( defaultRenderer.release() );
551 return QString();
552 }
553 }
554
555 return QgsMapLayer::loadDefaultStyle( resultFlag );
556}
557
559{
561
562 const QgsLayerMetadataFormatter htmlFormatter( metadata() );
563 QString myMetadata = QStringLiteral( "<html>\n<body>\n" );
564
565 myMetadata += generalHtmlMetadata();
566
567 // Begin Provider section
568 myMetadata += QStringLiteral( "<h1>" ) + tr( "Information from provider" ) + QStringLiteral( "</h1>\n<hr>\n" );
569 myMetadata += QLatin1String( "<table class=\"list-view\">\n" );
570
571 // Extent
572 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Extent" ) + QStringLiteral( "</td><td>" ) + extent().toString() + QStringLiteral( "</td></tr>\n" );
573
574 // feature count
575 QLocale locale = QLocale();
576 locale.setNumberOptions( locale.numberOptions() &= ~QLocale::NumberOption::OmitGroupSeparator );
577 const qint64 pointCount = mDataProvider ? mDataProvider->pointCount() : -1;
578 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
579 + tr( "Point count" ) + QStringLiteral( "</td><td>" )
580 + ( pointCount < 0 ? tr( "unknown" ) : locale.toString( static_cast<qlonglong>( pointCount ) ) )
581 + QStringLiteral( "</td></tr>\n" );
582
583 if ( const QgsPointCloudDataProvider *provider = dataProvider() )
584 {
585 myMetadata += provider->htmlMetadata();
586 }
587
588 myMetadata += QLatin1String( "</table>\n<br><br>" );
589
590 // CRS
591 myMetadata += crsHtmlMetadata();
592
593 // provider metadata section
594 myMetadata += QStringLiteral( "<h1>" ) + tr( "Metadata" ) + QStringLiteral( "</h1>\n<hr>\n" ) + QStringLiteral( "<table class=\"list-view\">\n" );
595 const QVariantMap originalMetadata = mDataProvider ? mDataProvider->originalMetadata() : QVariantMap();
596
597 if ( originalMetadata.value( QStringLiteral( "creation_year" ) ).toInt() > 0 && originalMetadata.contains( QStringLiteral( "creation_doy" ) ) )
598 {
599 QDate creationDate( originalMetadata.value( QStringLiteral( "creation_year" ) ).toInt(), 1, 1 );
600 creationDate = creationDate.addDays( originalMetadata.value( QStringLiteral( "creation_doy" ) ).toInt() );
601
602 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
603 + tr( "Creation date" ) + QStringLiteral( "</td><td>" )
604 + creationDate.toString( Qt::ISODate )
605 + QStringLiteral( "</td></tr>\n" );
606 }
607 if ( originalMetadata.contains( QStringLiteral( "major_version" ) ) && originalMetadata.contains( QStringLiteral( "minor_version" ) ) )
608 {
609 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
610 + tr( "Version" ) + QStringLiteral( "</td><td>" )
611 + QStringLiteral( "%1.%2" ).arg( originalMetadata.value( QStringLiteral( "major_version" ) ).toString(),
612 originalMetadata.value( QStringLiteral( "minor_version" ) ).toString() )
613 + QStringLiteral( "</td></tr>\n" );
614 }
615
616 if ( !originalMetadata.value( QStringLiteral( "dataformat_id" ) ).toString().isEmpty() )
617 {
618 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
619 + tr( "Data format" ) + QStringLiteral( "</td><td>" )
620 + QStringLiteral( "%1 (%2)" ).arg( QgsPointCloudDataProvider::translatedDataFormatIds().value( originalMetadata.value( QStringLiteral( "dataformat_id" ) ).toInt() ),
621 originalMetadata.value( QStringLiteral( "dataformat_id" ) ).toString() ).trimmed()
622 + QStringLiteral( "</td></tr>\n" );
623 }
624
625 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
626 + tr( "Scale X" ) + QStringLiteral( "</td><td>" )
627 + QString::number( originalMetadata.value( QStringLiteral( "scale_x" ) ).toDouble() )
628 + QStringLiteral( "</td></tr>\n" );
629 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
630 + tr( "Scale Y" ) + QStringLiteral( "</td><td>" )
631 + QString::number( originalMetadata.value( QStringLiteral( "scale_y" ) ).toDouble() )
632 + QStringLiteral( "</td></tr>\n" );
633 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
634 + tr( "Scale Z" ) + QStringLiteral( "</td><td>" )
635 + QString::number( originalMetadata.value( QStringLiteral( "scale_z" ) ).toDouble() )
636 + QStringLiteral( "</td></tr>\n" );
637
638 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
639 + tr( "Offset X" ) + QStringLiteral( "</td><td>" )
640 + QString::number( originalMetadata.value( QStringLiteral( "offset_x" ) ).toDouble() )
641 + QStringLiteral( "</td></tr>\n" );
642 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
643 + tr( "Offset Y" ) + QStringLiteral( "</td><td>" )
644 + QString::number( originalMetadata.value( QStringLiteral( "offset_y" ) ).toDouble() )
645 + QStringLiteral( "</td></tr>\n" );
646 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
647 + tr( "Offset Z" ) + QStringLiteral( "</td><td>" )
648 + QString::number( originalMetadata.value( QStringLiteral( "offset_z" ) ).toDouble() )
649 + QStringLiteral( "</td></tr>\n" );
650
651 if ( !originalMetadata.value( QStringLiteral( "project_id" ) ).toString().isEmpty() )
652 {
653 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
654 + tr( "Project ID" ) + QStringLiteral( "</td><td>" )
655 + originalMetadata.value( QStringLiteral( "project_id" ) ).toString()
656 + QStringLiteral( "</td></tr>\n" );
657 }
658
659 if ( !originalMetadata.value( QStringLiteral( "system_id" ) ).toString().isEmpty() )
660 {
661 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
662 + tr( "System ID" ) + QStringLiteral( "</td><td>" )
663 + originalMetadata.value( QStringLiteral( "system_id" ) ).toString()
664 + QStringLiteral( "</td></tr>\n" );
665 }
666
667 if ( !originalMetadata.value( QStringLiteral( "software_id" ) ).toString().isEmpty() )
668 {
669 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" )
670 + tr( "Software ID" ) + QStringLiteral( "</td><td>" )
671 + originalMetadata.value( QStringLiteral( "software_id" ) ).toString()
672 + QStringLiteral( "</td></tr>\n" );
673 }
674
675 // End Provider section
676 myMetadata += QLatin1String( "</table>\n<br><br>" );
677
678 // identification section
679 myMetadata += QStringLiteral( "<h1>" ) + tr( "Identification" ) + QStringLiteral( "</h1>\n<hr>\n" );
680 myMetadata += htmlFormatter.identificationSectionHtml( );
681 myMetadata += QLatin1String( "<br><br>\n" );
682
683 // extent section
684 myMetadata += QStringLiteral( "<h1>" ) + tr( "Extent" ) + QStringLiteral( "</h1>\n<hr>\n" );
685 myMetadata += htmlFormatter.extentSectionHtml( isSpatial() );
686 myMetadata += QLatin1String( "<br><br>\n" );
687
688 // Start the Access section
689 myMetadata += QStringLiteral( "<h1>" ) + tr( "Access" ) + QStringLiteral( "</h1>\n<hr>\n" );
690 myMetadata += htmlFormatter.accessSectionHtml( );
691 myMetadata += QLatin1String( "<br><br>\n" );
692
693 // Attributes section
694 myMetadata += QStringLiteral( "<h1>" ) + tr( "Attributes" ) + QStringLiteral( "</h1>\n<hr>\n<table class=\"list-view\">\n" );
695
697
698 // count attributes
699 myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Count" ) + QStringLiteral( "</td><td>" ) + QString::number( attrs.count() ) + QStringLiteral( "</td></tr>\n" );
700
701 myMetadata += QLatin1String( "</table>\n<br><table width=\"100%\" class=\"tabular-view\">\n" );
702 myMetadata += QLatin1String( "<tr><th>" ) + tr( "Attribute" ) + QLatin1String( "</th><th>" ) + tr( "Type" ) + QLatin1String( "</th></tr>\n" );
703
704 for ( int i = 0; i < attrs.count(); ++i )
705 {
706 const QgsPointCloudAttribute attribute = attrs.at( i );
707 QString rowClass;
708 if ( i % 2 )
709 rowClass = QStringLiteral( "class=\"odd-row\"" );
710 myMetadata += QLatin1String( "<tr " ) + rowClass + QLatin1String( "><td>" ) + attribute.name() + QLatin1String( "</td><td>" ) + attribute.displayType() + QLatin1String( "</td></tr>\n" );
711 }
712
713 //close field list
714 myMetadata += QLatin1String( "</table>\n<br><br>" );
715
716
717 // Start the contacts section
718 myMetadata += QStringLiteral( "<h1>" ) + tr( "Contacts" ) + QStringLiteral( "</h1>\n<hr>\n" );
719 myMetadata += htmlFormatter.contactsSectionHtml( );
720 myMetadata += QLatin1String( "<br><br>\n" );
721
722 // Start the links section
723 myMetadata += QStringLiteral( "<h1>" ) + tr( "Links" ) + QStringLiteral( "</h1>\n<hr>\n" );
724 myMetadata += htmlFormatter.linksSectionHtml( );
725 myMetadata += QLatin1String( "<br><br>\n" );
726
727 // Start the history section
728 myMetadata += QStringLiteral( "<h1>" ) + tr( "History" ) + QStringLiteral( "</h1>\n<hr>\n" );
729 myMetadata += htmlFormatter.historySectionHtml( );
730 myMetadata += QLatin1String( "<br><br>\n" );
731
732 myMetadata += customPropertyHtmlMetadata();
733
734 myMetadata += QLatin1String( "\n</body>\n</html>\n" );
735 return myMetadata;
736}
737
744
746{
748
749 return mDataProvider ? mDataProvider->attributes() : QgsPointCloudAttributeCollection();
750}
751
753{
755
756 return mDataProvider ? mDataProvider->pointCount() : 0;
757}
758
765
767{
769
770 return mRenderer.get();
771}
772
774{
776
777 if ( renderer == mRenderer.get() )
778 return;
779
780 mRenderer.reset( renderer );
781 emit rendererChanged();
783
784 if ( mSync3DRendererTo2DRenderer )
786}
787
788bool QgsPointCloudLayer::setSubsetString( const QString &subset )
789{
791
792 if ( !isValid() || !mDataProvider )
793 {
794 QgsDebugMsgLevel( QStringLiteral( "invoked with invalid layer or null mDataProvider" ), 3 );
795 setCustomProperty( QStringLiteral( "storedSubsetString" ), subset );
796 return false;
797 }
798 else if ( subset == mDataProvider->subsetString() )
799 return true;
800
801 bool res = mDataProvider->setSubsetString( subset );
802 if ( res )
803 {
804 emit subsetStringChanged();
806 }
807 return res;
808}
809
811{
813
814 if ( !isValid() || !mDataProvider )
815 {
816 QgsDebugMsgLevel( QStringLiteral( "invoked with invalid layer or null mDataProvider" ), 3 );
817 return customProperty( QStringLiteral( "storedSubsetString" ) ).toString();
818 }
819 return mDataProvider->subsetString();
820}
821
823{
825
826 bool result = false;
828 if ( r )
829 {
830 result = r->convertFrom2DRenderer( renderer() );
831 setRenderer3D( r );
833 }
834 return result;
835}
836
838{
840
841 return mSync3DRendererTo2DRenderer;
842}
843
845{
847
848 mSync3DRendererTo2DRenderer = sync;
849 if ( sync )
851}
852
853void QgsPointCloudLayer::calculateStatistics()
854{
856
857 if ( !mDataProvider.get() || !mDataProvider->hasValidIndex() )
858 {
859 QgsMessageLog::logMessage( QObject::tr( "Failed to calculate statistics of the point cloud %1" ).arg( this->name() ) );
860 return;
861 }
862 if ( mStatsCalculationTask )
863 {
864 QgsMessageLog::logMessage( QObject::tr( "A statistics calculation task for the point cloud %1 is already in progress" ).arg( this->name() ) );
865 return;
866 }
867#ifdef HAVE_COPC
868 if ( mDataProvider && mDataProvider->index() && mDataProvider->index()->isValid() )
869 {
870 if ( QgsCopcPointCloudIndex *index = qobject_cast<QgsCopcPointCloudIndex *>( mDataProvider->index() ) )
871 {
872 mStatistics = index->readStatistics();
873 }
874 }
875#endif
876 if ( mStatistics.sampledPointsCount() != 0 )
877 {
879 emit statisticsCalculationStateChanged( mStatisticsCalculationState );
880 resetRenderer();
881 return;
882 }
883
884 QVector<QgsPointCloudAttribute> attributes = mDataProvider->attributes().attributes();
885 // Do not calculate stats for X, Y & Z since the point cloud index contains that
886 for ( int i = 0; i < attributes.size(); ++i )
887 {
888 if ( attributes[i].name() == QLatin1String( "X" ) || attributes[i].name() == QLatin1String( "Y" ) || attributes[i].name() == QLatin1String( "Z" ) )
889 {
890 attributes.remove( i );
891 --i;
892 }
893 }
894
895 QgsPointCloudStatsCalculationTask *task = new QgsPointCloudStatsCalculationTask( mDataProvider->index(), attributes, 1000000 );
896 connect( task, &QgsTask::taskCompleted, this, [this, task]()
897 {
898 mStatistics = task->calculationResults();
899
900 // fetch X, Y & Z stats directly from the index
901 QVector<QString> coordinateAttributes;
902 coordinateAttributes.push_back( QStringLiteral( "X" ) );
903 coordinateAttributes.push_back( QStringLiteral( "Y" ) );
904 coordinateAttributes.push_back( QStringLiteral( "Z" ) );
905
906 QMap<QString, QgsPointCloudAttributeStatistics> statsMap = mStatistics.statisticsMap();
907 QgsPointCloudIndex *index = mDataProvider->index();
908 for ( const QString &attribute : coordinateAttributes )
909 {
911 QVariant min = index->metadataStatistic( attribute, Qgis::Statistic::Min );
912 QVariant max = index->metadataStatistic( attribute, Qgis::Statistic::Max );
913 if ( !min.isValid() )
914 continue;
915 s.minimum = min.toDouble();
916 s.maximum = max.toDouble();
917 s.count = index->metadataStatistic( attribute, Qgis::Statistic::Count ).toInt();
918 s.mean = index->metadataStatistic( attribute, Qgis::Statistic::Mean ).toInt();
919 s.stDev = index->metadataStatistic( attribute, Qgis::Statistic::StDev ).toInt();
920 QVariantList classes = index->metadataClasses( attribute );
921 for ( const QVariant &c : classes )
922 {
923 s.classCount[ c.toInt() ] = index->metadataClassStatistic( attribute, c, Qgis::Statistic::Count ).toInt();
924 }
925 statsMap[ attribute ] = s;
926 }
927 mStatistics = QgsPointCloudStatistics( mStatistics.sampledPointsCount(), statsMap );
928 //
929
931 emit statisticsCalculationStateChanged( mStatisticsCalculationState );
932 resetRenderer();
933 mStatsCalculationTask = 0;
934#ifdef HAVE_COPC
935 if ( mDataProvider && mDataProvider->index() && mDataProvider->index()->isValid() && mDataProvider->name() == QLatin1String( "pdal" ) && mStatistics.sampledPointsCount() != 0 )
936 {
937 if ( QgsCopcPointCloudIndex *index = qobject_cast<QgsCopcPointCloudIndex *>( mDataProvider->index() ) )
938 {
939 index->writeStatistics( mStatistics );
940 }
941 }
942#endif
943 } );
944
945 // In case the statistics calculation fails, QgsTask::taskTerminated will be called
946 connect( task, &QgsTask::taskTerminated, this, [this]()
947 {
948 if ( mStatsCalculationTask )
949 {
950 QgsMessageLog::logMessage( QObject::tr( "Failed to calculate statistics of the point cloud %1" ).arg( this->name() ) );
951 mStatsCalculationTask = 0;
952 }
953 } );
954
955 mStatsCalculationTask = QgsApplication::taskManager()->addTask( task );
956
958 emit statisticsCalculationStateChanged( mStatisticsCalculationState );
959}
960
961void QgsPointCloudLayer::resetRenderer()
962{
964
965 mDataProvider->loadIndex();
966 if ( !mLayerOptions.skipStatisticsCalculation && !mDataProvider->hasStatisticsMetadata() && statisticsCalculationState() == QgsPointCloudLayer::PointCloudStatisticsCalculationState::NotStarted )
967 {
968 calculateStatistics();
969 }
970 if ( !mRenderer || mRenderer->type() == QLatin1String( "extent" ) )
971 {
973 }
975
976 emit rendererChanged();
977}
978
979void QgsPointCloudLayer::loadIndexesForRenderContext( QgsRenderContext &rendererContext ) const
980{
981 if ( mDataProvider->capabilities() & QgsPointCloudDataProvider::ContainSubIndexes )
982 {
983 QgsRectangle renderExtent;
984 try
985 {
986 renderExtent = rendererContext.coordinateTransform().transformBoundingBox( rendererContext.mapExtent(), Qgis::TransformDirection::Reverse );
987 }
988 catch ( QgsCsException & )
989 {
990 QgsDebugError( QStringLiteral( "Transformation of extent failed!" ) );
991 }
992
993 const QVector<QgsPointCloudSubIndex> subIndex = mDataProvider->subIndexes();
994 for ( int i = 0; i < subIndex.size(); ++i )
995 {
996 // no need to load as it's there
997 if ( subIndex.at( i ).index() )
998 continue;
999
1000 if ( subIndex.at( i ).extent().intersects( renderExtent ) &&
1001 renderExtent.width() < subIndex.at( i ).extent().width() )
1002 {
1003 mDataProvider->loadSubIndex( i );
1004 }
1005 }
1006 }
1007}
The Qgis class provides global constants for use throughout the application.
Definition qgis.h:54
@ StDev
Standard deviation of values.
@ Mean
Mean of values.
@ Max
Max of values.
@ Min
Min of values.
BlendMode
Blending modes defining the available composition modes that can be used when painting.
Definition qgis.h:4594
QFlags< DataProviderReadFlag > DataProviderReadFlags
Flags which control data provider construction.
Definition qgis.h:450
@ PointCloud
Point cloud layer. Added in QGIS 3.18.
@ LoadDefaultStyle
Reset the layer's style to the default for the datasource.
@ SkipGetExtent
Skip the extent from provider.
@ Reverse
Reverse/inverse transform (from destination to source)
Base class for point cloud 3D renderers.
virtual bool convertFrom2DRenderer(QgsPointCloudRenderer *renderer)=0
Updates the 3D renderer's symbol to match that of a given QgsPointCloudRenderer.
Abstract base class for objects which generate elevation profiles.
static QgsRuntimeProfiler * profiler()
Returns the application runtime profiler.
static QgsTaskManager * taskManager()
Returns the application's task manager, used for managing application wide background task handling.
Contains information about the context in which a coordinate transform is executed.
QgsRectangle transformBoundingBox(const QgsRectangle &rectangle, Qgis::TransformDirection direction=Qgis::TransformDirection::Forward, bool handle180Crossover=false) const
Transforms a rectangle from the source CRS to the destination CRS.
Custom exception class for Coordinate Reference System related exceptions.
void dataChanged()
Emitted whenever a change is made to the data provider which may have caused changes in the provider'...
A container for error messages.
Definition qgserror.h:81
bool isEmpty() const
Test if any error is set.
Definition qgserror.h:110
QString summary() const
Short error description, usually the first error in chain, the real error.
Definition qgserror.cpp:129
Class for metadata formatter.
Base class for storage of map layer elevation properties.
static QString typeToString(Qgis::LayerType type)
Converts a map layer type to a string value.
static QgsMapLayerLegend * defaultPointCloudLegend(QgsPointCloudLayer *layer)
Create new legend implementation for a point cloud layer.
Base class for utility classes that encapsulate information necessary for rendering of map layers.
Base class for all map layer types.
Definition qgsmaplayer.h:76
QString name
Definition qgsmaplayer.h:80
void readStyleManager(const QDomNode &layerNode)
Read style manager's configuration (if any). To be called by subclasses.
virtual bool isSpatial() const
Returns true if the layer is considered a spatial layer, ie it has some form of geometry associated w...
QgsAbstract3DRenderer * renderer3D() const
Returns 3D renderer associated with the layer.
void setError(const QgsError &error)
Sets error message.
void writeStyleManager(QDomNode &layerNode, QDomDocument &doc) const
Write style manager's configuration (if exists). To be called by subclasses.
QString source() const
Returns the source for the layer.
Q_INVOKABLE QVariant customProperty(const QString &value, const QVariant &defaultValue=QVariant()) const
Read a custom property from layer.
QString providerType() const
Returns the provider type (provider key) for this layer.
virtual void setExtent3D(const QgsBox3D &box)
Sets the extent.
void setBlendMode(QPainter::CompositionMode blendMode)
Set the blending mode used for rendering a layer.
void configChanged()
Emitted whenever the configuration is changed.
void trigger3DUpdate()
Will advise any 3D maps that this layer requires to be updated in the scene.
void setMinimumScale(double scale)
Sets the minimum map scale (i.e.
static Qgis::DataProviderReadFlags providerReadFlags(const QDomNode &layerNode, QgsMapLayer::ReadFlags layerReadFlags)
Returns provider read flag deduced from layer read flags layerReadFlags and a dom node layerNode that...
QgsMapLayer::LayerFlags flags() const
Returns the flags for this layer.
void writeCustomProperties(QDomNode &layerNode, QDomDocument &doc) const
Write custom properties to project file.
virtual QString loadDefaultStyle(bool &resultFlag)
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
void setDataSource(const QString &dataSource, const QString &baseName=QString(), const QString &provider=QString(), bool loadDefaultStyleFlag=false)
Updates the data source of the layer.
QString mLayerName
Name of the layer - used for display.
void triggerRepaint(bool deferredUpdate=false)
Will advise the map canvas (and any other interested party) that this layer requires to be repainted.
QString crsHtmlMetadata() const
Returns a HTML fragment containing the layer's CRS metadata, for use in the htmlMetadata() method.
void setMaximumScale(double scale)
Sets the maximum map scale (i.e.
QgsLayerMetadata metadata
Definition qgsmaplayer.h:82
QPainter::CompositionMode blendMode() const
Returns the current blending mode for a layer.
virtual void setOpacity(double opacity)
Sets the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1....
void readCustomProperties(const QDomNode &layerNode, const QString &keyStartsWith=QString())
Read custom properties from project file.
QFlags< StyleCategory > StyleCategories
Q_INVOKABLE void setCustomProperty(const QString &key, const QVariant &value)
Set a custom property for layer.
QString mProviderKey
Data provider key (name of the data provider)
QgsCoordinateTransformContext transformContext() const
Returns the layer data provider coordinate transform context or a default transform context if the la...
std::unique_ptr< QgsDataProvider > mPreloadedProvider
Optionally used when loading a project, it is released when the layer is effectively created.
void rendererChanged()
Signal emitted when renderer is changed.
void setScaleBasedVisibility(bool enabled)
Sets whether scale based visibility is enabled for the layer.
bool hasScaleBasedVisibility() const
Returns whether scale based visibility is enabled for the layer.
void emitStyleChanged()
Triggers an emission of the styleChanged() signal.
void dataChanged()
Data of layer changed.
virtual QgsMapLayer * clone() const =0
Returns a new instance equivalent to this one except for the id which is still unique.
void setName(const QString &name)
Set the display name of the layer.
virtual void setExtent(const QgsRectangle &rect)
Sets the extent.
QString mDataSource
Data source description string, varies by layer type.
@ FlagReadExtentFromXml
Read extent from xml and skip get extent from provider.
@ FlagDontResolveLayers
Don't resolve layer paths or create data providers for layers.
void setValid(bool valid)
Sets whether layer is valid or not.
void readCommonStyle(const QDomElement &layerElement, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories)
Read style data common to all layer types.
QgsMapLayer::ReadFlags mReadFlags
Read flags. It's up to the subclass to respect these when restoring state from XML.
double minimumScale() const
Returns the minimum map scale (i.e.
void setLegend(QgsMapLayerLegend *legend)
Assign a legend controller to the map layer.
double opacity
Definition qgsmaplayer.h:88
@ Symbology
Symbology.
@ Rendering
Rendering: scale visibility, simplify method, opacity.
@ Symbology3D
3D symbology
@ CustomProperties
Custom properties (by plugins for instance)
void setRenderer3D(QgsAbstract3DRenderer *renderer)
Sets 3D renderer for the layer.
QString customPropertyHtmlMetadata() const
Returns an HTML fragment containing custom property information, for use in the htmlMetadata() method...
QString generalHtmlMetadata() const
Returns an HTML fragment containing general metadata information, for use in the htmlMetadata() metho...
void writeCommonStyle(QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const
Write style data common to all layer types.
double maximumScale() const
Returns the maximum map scale (i.e.
void invalidateWgs84Extent()
Invalidates the WGS84 extent.
void setCrs(const QgsCoordinateReferenceSystem &srs, bool emitSignal=true)
Sets layer's spatial reference system.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true)
Adds a message to the log instance (and creates it if necessary).
static Qgis::BlendMode getBlendModeEnum(QPainter::CompositionMode blendMode)
Returns a Qgis::BlendMode corresponding to a QPainter::CompositionMode.
static QPainter::CompositionMode getCompositionMode(Qgis::BlendMode blendMode)
Returns a QPainter::CompositionMode corresponding to a Qgis::BlendMode.
Collection of point cloud attributes.
const QgsPointCloudAttribute & at(int index) const
Returns the attribute at the specified index.
int count() const
Returns the number of attributes present in the collection.
Attribute for point cloud data pair of name and size in bytes.
QString displayType() const
Returns the type to use when displaying this field.
QString name() const
Returns name of the attribute.
Base class for providing data for QgsPointCloudLayer.
@ CreateRenderer
Provider can create 2D renderers using backend-specific formatting information. See QgsPointCloudData...
@ ContainSubIndexes
Provider can contain multiple indexes. Virtual point cloud files for example.
static QMap< int, QString > translatedDataFormatIds()
Returns the map of LAS data format ID to translated string value.
void indexGenerationStateChanged(QgsPointCloudDataProvider::PointCloudIndexGenerationState state)
Emitted when point cloud generation state is changed.
PointCloudIndexGenerationState
Point cloud index state.
@ NotIndexed
Provider has no index available.
@ Indexing
Provider try to index the source data.
@ Indexed
The index is ready to be used.
Represents a indexed point clouds data in octree.
virtual QVariantList metadataClasses(const QString &attribute) const
Returns the classes of attribute.
virtual QVariant metadataStatistic(const QString &attribute, Qgis::Statistic statistic) const
Returns the statistic statistic of attribute.
virtual QVariant metadataClassStatistic(const QString &attribute, const QVariant &value, Qgis::Statistic statistic) const
Returns the statistic statistic of the class value of the attribute attribute.
Point cloud layer specific subclass of QgsMapLayerElevationProperties.
QgsPointCloudLayerElevationProperties * clone() const override
Creates a clone of the properties.
Implementation of QgsAbstractProfileGenerator for point cloud layers.
Implementation of threaded rendering for point cloud layers.
Represents a map layer supporting display of point clouds.
QString decodedSource(const QString &source, const QString &dataProvider, const QgsReadWriteContext &context) const override
Called by readLayerXML(), used by derived classes to decode provider's specific data source from proj...
QString htmlMetadata() const override
Obtain a formatted HTML string containing assorted metadata for this layer.
void setSync3DRendererTo2DRenderer(bool sync)
Sets whether this layer's 3D renderer should be automatically updated with changes applied to the lay...
QgsMapLayerElevationProperties * elevationProperties() override
Returns the layer's elevation properties.
@ Calculated
The statistics calculation task is done and statistics are available.
@ NotStarted
The statistics calculation task has not been started.
@ Calculating
The statistics calculation task is running.
bool sync3DRendererTo2DRenderer() const
Returns whether this layer's 3D renderer should be automatically updated with changes applied to the ...
bool writeXml(QDomNode &layerNode, QDomDocument &doc, const QgsReadWriteContext &context) const override
Called by writeLayerXML(), used by children to write state specific to them to project files.
QgsRectangle extent() const override
Returns the extent of the layer.
QString encodedSource(const QString &source, const QgsReadWriteContext &context) const override
Called by writeLayerXML(), used by derived classes to encode provider's specific data source to proje...
QgsPointCloudRenderer * renderer()
Returns the 2D renderer for the point cloud.
bool convertRenderer3DFromRenderer2D()
Updates the layer's 3D renderer's symbol to match that of the layer's 2D renderer.
qint64 pointCount() const
Returns the total number of points available in the layer.
bool writeSymbology(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const override
Write the style for the layer into the document provided.
void raiseError(const QString &msg)
Signals an error related to this point cloud layer.
PointCloudStatisticsCalculationState statisticsCalculationState() const
Returns the status of point cloud statistics calculation.
QgsPointCloudDataProvider * dataProvider() override
Returns the layer's data provider, it may be nullptr.
void statisticsCalculationStateChanged(QgsPointCloudLayer::PointCloudStatisticsCalculationState state)
Emitted when statistics calculation state has changed.
bool readSymbology(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) override
Read the symbology for the current layer from the DOM node supplied.
bool readXml(const QDomNode &layerNode, QgsReadWriteContext &context) override
Called by readLayerXML(), used by children to read state specific to them from project files.
QString subsetString() const
Returns the string used to define a subset of the layer.
QgsPointCloudLayer(const QString &uri=QString(), const QString &baseName=QString(), const QString &providerLib=QStringLiteral("pointcloud"), const QgsPointCloudLayer::LayerOptions &options=QgsPointCloudLayer::LayerOptions())
Constructor - creates a point cloud layer.
bool setSubsetString(const QString &subset)
Sets the string used to define a subset of the layer.
QgsPointCloudLayer * clone() const override
Returns a new instance equivalent to this one except for the id which is still unique.
bool readStyle(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) FINAL
Read the style for the current layer from the DOM node supplied.
bool writeStyle(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const FINAL
Write just the symbology information for the layer into the document.
void setRenderer(QgsPointCloudRenderer *renderer)
Sets the 2D renderer for the point cloud.
QString loadDefaultStyle(bool &resultFlag) FINAL
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
QgsPointCloudAttributeCollection attributes() const
Returns the attributes available from the layer.
void subsetStringChanged()
Emitted when the layer's subset string has changed.
void setTransformContext(const QgsCoordinateTransformContext &transformContext) override
Sets the coordinate transform context to transformContext.
QgsMapLayerRenderer * createMapRenderer(QgsRenderContext &rendererContext) override
Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context.
QgsAbstractProfileGenerator * createProfileGenerator(const QgsProfileRequest &request) override
Given a profile request, returns a new profile generator ready for generating elevation profiles.
static QgsPointCloudRenderer * defaultRenderer(const QgsPointCloudLayer *layer)
Returns a new default point cloud renderer for a specified layer.
Abstract base class for 2d point cloud renderers.
static QgsPointCloudRenderer * load(QDomElement &element, const QgsReadWriteContext &context)
Creates a renderer from an XML element.
Class used to store statistics of a point cloud dataset.
int sampledPointsCount() const
Returns the number of points used to calculate the statistics.
QMap< QString, QgsPointCloudAttributeStatistics > statisticsMap() const
Returns a map object containing all the statistics.
Encapsulates properties and constraints relating to fetching elevation profiles from different source...
QString absoluteToRelativeUri(const QString &providerKey, const QString &uri, const QgsReadWriteContext &context) const
Converts absolute path(s) to relative path(s) in the given provider-specific URI.
static QgsProviderRegistry * instance(const QString &pluginPath=QString())
Means of accessing canonical single instance.
QString relativeToAbsoluteUri(const QString &providerKey, const QString &uri, const QgsReadWriteContext &context) const
Converts relative path(s) to absolute path(s) in the given provider-specific URI.
The class is used as a container of context for various read/write operations on other objects.
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
A rectangle specified with double values.
Q_INVOKABLE QString toString(int precision=16) const
Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the sp...
Contains information about the context of a rendering operation.
QgsRectangle mapExtent() const
Returns the original extent of the map being rendered.
QgsCoordinateTransform coordinateTransform() const
Returns the current coordinate transform for the context.
long addTask(QgsTask *task, int priority=0)
Adds a task to the manager.
Abstract base class for long running background tasks.
void taskCompleted()
Will be emitted by task to indicate its successful completion.
void taskTerminated()
Will be emitted by task if it has terminated for any reason other then completion (e....
static QgsRectangle readRectangle(const QDomElement &element)
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
#define QgsDebugMsgLevel(str, level)
Definition qgslogger.h:39
#define QgsDebugError(str)
Definition qgslogger.h:38
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS_NON_FATAL
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS
Setting options for creating vector data providers.
Class used to store statistics of one attribute of a point cloud dataset.
Setting options for loading point cloud layers.
bool skipStatisticsCalculation
Set to true if the statistics calculation for this point cloud is disabled.
bool loadDefaultStyle
Set to true if the default layer style should be loaded.
bool skipIndexGeneration
Set to true if point cloud index generation should be skipped.
QgsCoordinateTransformContext transformContext
Coordinate transform context.