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algorithm to create COPC files for input point clouds
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src/analysis/processing/pdal/qgsalgorithmpdalcreatecopc.cpp
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| /*************************************************************************** | ||
| qgsalgorithmpdalcreatecopc.cpp | ||
| --------------------- | ||
| begin : May 2023 | ||
| copyright : (C) 2023 by Alexander Bruy | ||
| email : alexander dot bruy 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. * | ||
| * * | ||
| ***************************************************************************/ | ||
|
|
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| #include "qgsalgorithmpdalcreatecopc.h" | ||
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| #include <QProcessEnvironment> | ||
| #include <QThread> | ||
| #include <QFileInfo> | ||
| #include <QDir> | ||
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| #include "QgisUntwine.hpp" | ||
| #include "qgsapplication.h" | ||
| #include "qgspointcloudlayer.h" | ||
|
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| ///@cond PRIVATE | ||
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| QString QgsPdalCreateCopcAlgorithm::name() const | ||
| { | ||
| return QStringLiteral( "createcopc" ); | ||
| } | ||
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| QString QgsPdalCreateCopcAlgorithm::displayName() const | ||
| { | ||
| return QObject::tr( "Create COPC" ); | ||
| } | ||
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| QString QgsPdalCreateCopcAlgorithm::group() const | ||
| { | ||
| return QObject::tr( "Point cloud data management" ); | ||
| } | ||
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| QString QgsPdalCreateCopcAlgorithm::groupId() const | ||
| { | ||
| return QStringLiteral( "pointclouddatamanagement" ); | ||
| } | ||
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| QStringList QgsPdalCreateCopcAlgorithm::tags() const | ||
| { | ||
| return QObject::tr( "pdal,lidar,copc,convert,format,translate" ).split( ',' ); | ||
| } | ||
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| QString QgsPdalCreateCopcAlgorithm::shortHelpString() const | ||
| { | ||
| return QObject::tr( "This algorithm creates a COPC file for each input point cloud file." ); | ||
| } | ||
|
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| QgsPdalCreateCopcAlgorithm *QgsPdalCreateCopcAlgorithm::createInstance() const | ||
| { | ||
| return new QgsPdalCreateCopcAlgorithm(); | ||
| } | ||
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| void QgsPdalCreateCopcAlgorithm::initAlgorithm( const QVariantMap & ) | ||
| { | ||
| addParameter( new QgsProcessingParameterMultipleLayers( QStringLiteral( "LAYERS" ), QObject::tr( "Input layers" ), QgsProcessing::TypePointCloud ) ); | ||
| addOutput( new QgsProcessingOutputMultipleLayers( QStringLiteral( "OUTPUT_LAYERS" ), QObject::tr( "Output layers" ) ) ); | ||
| } | ||
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| QVariantMap QgsPdalCreateCopcAlgorithm::processAlgorithm( const QVariantMap ¶meters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) | ||
| { | ||
| const QList< QgsMapLayer * > layers = parameterAsLayerList( parameters, QStringLiteral( "LAYERS" ), context, QgsProcessing::LayerOptionsFlag::SkipIndexGeneration ); | ||
| if ( layers.empty() ) | ||
| { | ||
| feedback->reportError( QObject::tr( "No layers selected" ), true ); | ||
| } | ||
|
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| QString untwineExecutable = QProcessEnvironment::systemEnvironment().value( QStringLiteral( "QGIS_UNTWINE_EXECUTABLE" ) ); | ||
| if ( untwineExecutable.isEmpty() ) | ||
| { | ||
| #if defined(Q_OS_WIN) | ||
| untwineExecutable = QgsApplication::libexecPath() + "untwine.exe"; | ||
| #else | ||
| untwineExecutable = QgsApplication::libexecPath() + "untwine"; | ||
| #endif | ||
| } | ||
| const QFileInfo executable( untwineExecutable ); | ||
| if ( !executable.isExecutable() ) | ||
| { | ||
| throw QgsProcessingException( QObject::tr( "Untwine executable not found %1" ).arg( untwineExecutable ) ); | ||
| } | ||
|
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| QgsProcessingMultiStepFeedback multiStepFeedback( layers.size(), feedback ); | ||
| QStringList outputLayers; | ||
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| int i = 0; | ||
| for ( QgsMapLayer *layer : layers ) | ||
| { | ||
| if ( feedback->isCanceled() ) | ||
| break; | ||
|
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| multiStepFeedback.setCurrentStep( i ); | ||
| i++; | ||
|
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| if ( !layer ) | ||
| continue; | ||
|
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| QgsPointCloudLayer *pcl = qobject_cast< QgsPointCloudLayer * >( layer ); | ||
| if ( !pcl ) | ||
| continue; | ||
|
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| feedback->pushInfo( QObject::tr( "Processing layer %1/%2: %3" ).arg( i ).arg( layers.count() ).arg( layer ? layer->name() : QString() ) ); | ||
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| const QFileInfo fi( pcl->source() ); | ||
| const QDir directory = fi.absoluteDir(); | ||
| const QString outputFile = QStringLiteral( "%1/%2.copc.laz" ).arg( directory.absolutePath() ).arg( fi.completeBaseName() ); | ||
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| const QFileInfo outputFileInfo( outputFile ); | ||
| if ( outputFileInfo.exists() ) | ||
| { | ||
| feedback->pushInfo( QObject::tr( "File %1 is already indexed" ).arg( pcl->source() ) ); | ||
| continue; | ||
| } | ||
| QString tmpDir = outputFile + QStringLiteral( "_tmp" ); | ||
| if ( QDir( tmpDir ).exists() ) | ||
| { | ||
| feedback->pushInfo( QObject::tr( "Another indexing process is running (or finished with crash) in directory %1" ).arg( tmpDir ) ); | ||
| continue; | ||
| } | ||
|
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| untwine::QgisUntwine untwineProcess( untwineExecutable.toStdString() ); | ||
| untwine::QgisUntwine::Options options; | ||
| // calculate stats for attributes | ||
| options.push_back( { "stats", std::string() } ); | ||
| // generate COPC files | ||
| options.push_back( { "single_file", std::string() } ); | ||
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| const std::vector<std::string> files = {pcl->source().toStdString()}; | ||
| untwineProcess.start( files, outputFile.toStdString(), options ); | ||
| const int lastPercent = 0; | ||
| while ( true ) | ||
| { | ||
| if ( feedback->isCanceled() ) | ||
| break; | ||
|
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| QThread::msleep( 100 ); | ||
| const int percent = untwineProcess.progressPercent(); | ||
| if ( lastPercent != percent ) | ||
| { | ||
| multiStepFeedback.setProgress( percent ); | ||
| } | ||
|
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| if ( !untwineProcess.running() ) | ||
| { | ||
| if ( !untwineProcess.errorMessage().empty() ) | ||
| { | ||
| feedback->pushWarning( QObject::tr( "Failed to index file %1: %2" ).arg( outputFile, QString::fromStdString( untwineProcess.errorMessage() ) ) ); | ||
| } | ||
| break; | ||
| } | ||
| } | ||
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| QDir( tmpDir ).removeRecursively(); | ||
|
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| outputLayers << outputFile; | ||
| } | ||
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| QVariantMap outputs; | ||
| outputs.insert( QStringLiteral( "OUTPUT_LAYERS" ), outputLayers ); | ||
| return outputs; | ||
| } | ||
|
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| ///@endcond |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| /*************************************************************************** | ||
| qgsalgorithmpdalcreatecopc.h | ||
| --------------------- | ||
| begin : May 2023 | ||
| copyright : (C) 2023 by Alexander Bruy | ||
| email : alexander dot bruy 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. * | ||
| * * | ||
| ***************************************************************************/ | ||
|
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| #ifndef QGSALGORITHMPDALCREATECOPC_H | ||
| #define QGSALGORITHMPDALCREATECOPC_H | ||
|
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| #define SIP_NO_FILE | ||
|
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| #include "qgis_sip.h" | ||
| #include "qgsprocessingalgorithm.h" | ||
|
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| ///@cond PRIVATE | ||
|
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| /** | ||
| * Native point cloud create COPC algorithm. | ||
| */ | ||
| class QgsPdalCreateCopcAlgorithm : public QgsProcessingAlgorithm | ||
| { | ||
|
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| public: | ||
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| QgsPdalCreateCopcAlgorithm() = default; | ||
| void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override; | ||
| QString name() const override; | ||
| QString displayName() const override; | ||
| QString group() const override; | ||
| QString groupId() const override; | ||
| QStringList tags() const override; | ||
| QString shortHelpString() const override; | ||
| QgsPdalCreateCopcAlgorithm *createInstance() const override SIP_FACTORY; | ||
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| protected: | ||
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| QVariantMap processAlgorithm( const QVariantMap ¶meters, | ||
| QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override; | ||
|
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| friend class TestQgsProcessingPdalAlgs; | ||
| }; | ||
|
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| ///@endcond PRIVATE | ||
|
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| #endif // QGSALGORITHMPDALCREATECOPC_H |
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