void QgsRasterCalcDialog::insertAvailableRasterBands()
{
const QMap<QString, QgsMapLayer *> &layers = QgsProject::instance()->mapLayers();
QMap<QString, QgsMapLayer *>::const_iterator layerIt = layers.constBegin();
for ( ; layerIt != layers.constEnd(); ++layerIt )
{
QgsRasterLayer *rlayer = dynamic_cast<QgsRasterLayer *>( layerIt.value() );
if ( rlayer && rlayer->dataProvider() && rlayer->dataProvider()->name() == QLatin1String( "gdal" ) )
{
if ( !mExtentSizeSet ) //set bounding box / resolution of output to the values of the first possible input layer
{
setExtentSize( rlayer->width(), rlayer->height(), rlayer->extent() );
mCrsSelector->setCrs( rlayer->crs() );
}
//get number of bands
for ( int i = 0; i < rlayer->bandCount(); ++i )
{
QgsRasterCalculatorEntry entry;
entry.raster = rlayer;
entry.bandNumber = i + 1;
entry.ref = rlayer->name() + '@' + QString::number( i + 1 );
mAvailableRasterBands.push_back( entry );
mRasterBandsListWidget->addItem( entry.ref );
}
}
}
}
void QgsRasterCalcDialog::on_mCurrentLayerExtentButton_clicked()
{
QListWidgetItem* currentLayerItem = mRasterBandsListWidget->currentItem();
if ( currentLayerItem )
{
QgsRasterLayer* rlayer = nullptr;
QList<QgsRasterCalculatorEntry>::const_iterator rasterIt = mAvailableRasterBands.constBegin();
for ( ; rasterIt != mAvailableRasterBands.constEnd(); ++rasterIt )
{
if ( rasterIt->ref == currentLayerItem->text() )
{
rlayer = rasterIt->raster;
}
}
if ( !rlayer )
{
return;
}
QgsRectangle layerExtent = rlayer->extent();
mXMinSpinBox->setValue( layerExtent.xMinimum() );
mXMaxSpinBox->setValue( layerExtent.xMaximum() );
mYMinSpinBox->setValue( layerExtent.yMinimum() );
mYMaxSpinBox->setValue( layerExtent.yMaximum() );
mNColumnsSpinBox->setValue( rlayer->width() );
mNRowsSpinBox->setValue( rlayer->height() );
mCrsSelector->setCrs( rlayer->crs() );
}
}
bool QgsReclassifyAlgorithmBase::prepareAlgorithm( const QVariantMap ¶meters, QgsProcessingContext &context, QgsProcessingFeedback *feedback )
{
mDataType = QgsRasterAnalysisUtils::rasterTypeChoiceToDataType( parameterAsEnum( parameters, QStringLiteral( "DATA_TYPE" ), context ) );
QgsRasterLayer *layer = parameterAsRasterLayer( parameters, QStringLiteral( "INPUT_RASTER" ), context );
if ( !layer )
throw QgsProcessingException( invalidRasterError( parameters, QStringLiteral( "INPUT_RASTER" ) ) );
mBand = parameterAsInt( parameters, QStringLiteral( "RASTER_BAND" ), context );
if ( mBand < 1 || mBand > layer->bandCount() )
throw QgsProcessingException( QObject::tr( "Invalid band number for RASTER_BAND (%1): Valid values for input raster are 1 to %2" ).arg( mBand )
.arg( layer->bandCount() ) );
mInterface.reset( layer->dataProvider()->clone() );
mExtent = layer->extent();
mCrs = layer->crs();
mRasterUnitsPerPixelX = std::abs( layer->rasterUnitsPerPixelX() );
mRasterUnitsPerPixelY = std::abs( layer->rasterUnitsPerPixelY() );
mNbCellsXProvider = mInterface->xSize();
mNbCellsYProvider = mInterface->ySize();
mNoDataValue = parameterAsDouble( parameters, QStringLiteral( "NO_DATA" ), context );
mUseNoDataForMissingValues = parameterAsBool( parameters, QStringLiteral( "NODATA_FOR_MISSING" ), context );
int boundsType = parameterAsEnum( parameters, QStringLiteral( "RANGE_BOUNDARIES" ), context );
switch ( boundsType )
{
case 0:
mBoundsType = QgsReclassifyUtils::RasterClass::IncludeMax;
break;
case 1:
mBoundsType = QgsReclassifyUtils::RasterClass::IncludeMin;
break;
case 2:
mBoundsType = QgsReclassifyUtils::RasterClass::IncludeMinAndMax;
break;
case 3:
mBoundsType = QgsReclassifyUtils::RasterClass::Exclusive;
break;
}
return _prepareAlgorithm( parameters, context, feedback );
}
bool QgsZonalHistogramAlgorithm::prepareAlgorithm( const QVariantMap ¶meters, QgsProcessingContext &context, QgsProcessingFeedback * )
{
QgsRasterLayer *layer = parameterAsRasterLayer( parameters, QStringLiteral( "INPUT_RASTER" ), context );
if ( !layer )
throw QgsProcessingException( invalidRasterError( parameters, QStringLiteral( "INPUT_RASTER" ) ) );
mRasterBand = parameterAsInt( parameters, QStringLiteral( "RASTER_BAND" ), context );
mHasNoDataValue = layer->dataProvider()->sourceHasNoDataValue( mRasterBand );
mNodataValue = layer->dataProvider()->sourceNoDataValue( mRasterBand );
mRasterInterface.reset( layer->dataProvider()->clone() );
mRasterExtent = layer->extent();
mCrs = layer->crs();
mCellSizeX = std::abs( layer->rasterUnitsPerPixelX() );
mCellSizeY = std::abs( layer->rasterUnitsPerPixelX() );
mNbCellsXProvider = mRasterInterface->xSize();
mNbCellsYProvider = mRasterInterface->ySize();
return true;
}
void QgsRasterCalcDialog::insertAvailableRasterBands()
{
mAvailableRasterBands = QgsRasterCalculatorEntry::rasterEntries().toList();
mRasterBandsListWidget->clear();
for ( const auto &entry : qgis::as_const( mAvailableRasterBands ) )
{
QgsRasterLayer *rlayer = entry.raster;
if ( rlayer && rlayer->dataProvider() && rlayer->dataProvider()->name() == QLatin1String( "gdal" ) )
{
if ( !mExtentSizeSet ) //set bounding box / resolution of output to the values of the first possible input layer
{
setExtentSize( rlayer->width(), rlayer->height(), rlayer->extent() );
mCrsSelector->setCrs( rlayer->crs() );
}
QListWidgetItem *item = new QListWidgetItem( entry.ref, mRasterBandsListWidget );
item->setData( Qt::ToolTipRole, rlayer->publicSource() );
mRasterBandsListWidget->addItem( item );
}
}
}
void QgsBrowserLayerProperties::setItem( QgsDataItem* item )
{
QgsLayerItem *layerItem = qobject_cast<QgsLayerItem*>( item );
if ( !layerItem )
return;
mNoticeLabel->clear();
QgsMapLayer::LayerType type = layerItem->mapLayerType();
QString layerMetadata = tr( "Error" );
QgsCoordinateReferenceSystem layerCrs;
// temporarily override /Projections/defaultBehaviour to avoid dialog prompt
QSettings settings;
QString defaultProjectionOption = settings.value( "/Projections/defaultBehaviour", "prompt" ).toString();
if ( settings.value( "/Projections/defaultBehaviour", "prompt" ).toString() == "prompt" )
{
settings.setValue( "/Projections/defaultBehaviour", "useProject" );
}
// find root item
// we need to create a temporary layer to get metadata
// we could use a provider but the metadata is not as complete and "pretty" and this is easier
QgsDebugMsg( QString( "creating temporary layer using path %1" ).arg( layerItem->path() ) );
if ( type == QgsMapLayer::RasterLayer )
{
QgsDebugMsg( "creating raster layer" );
// should copy code from addLayer() to split uri ?
QgsRasterLayer* layer = new QgsRasterLayer( layerItem->uri(), layerItem->uri(), layerItem->providerKey() );
if ( layer )
{
if ( layer->isValid() )
{
layerCrs = layer->crs();
layerMetadata = layer->metadata();
}
delete layer;
}
}
else if ( type == QgsMapLayer::VectorLayer )
{
QgsDebugMsg( "creating vector layer" );
QgsVectorLayer* layer = new QgsVectorLayer( layerItem->uri(), layerItem->name(), layerItem->providerKey() );
if ( layer )
{
if ( layer->isValid() )
{
layerCrs = layer->crs();
layerMetadata = layer->metadata();
}
delete layer;
}
}
else if ( type == QgsMapLayer::PluginLayer )
{
// TODO: support display of properties for plugin layers
return;
}
// restore /Projections/defaultBehaviour
if ( defaultProjectionOption == "prompt" )
{
settings.setValue( "/Projections/defaultBehaviour", defaultProjectionOption );
}
mNameLabel->setText( layerItem->name() );
mUriLabel->setText( layerItem->uri() );
mProviderLabel->setText( layerItem->providerKey() );
QString myStyle = QgsApplication::reportStyleSheet();
mMetadataTextBrowser->document()->setDefaultStyleSheet( myStyle );
mMetadataTextBrowser->setHtml( layerMetadata );
// report if layer was set to to project crs without prompt (may give a false positive)
if ( defaultProjectionOption == "prompt" )
{
QgsCoordinateReferenceSystem defaultCrs =
QgisApp::instance()->mapCanvas()->mapSettings().destinationCrs();
if ( layerCrs == defaultCrs )
mNoticeLabel->setText( "NOTICE: Layer srs set from project (" + defaultCrs.authid() + ')' );
}
if ( mNoticeLabel->text().isEmpty() )
{
mNoticeLabel->hide();
}
}
void QgsBrowserDockWidget::showProperties( )
{
QgsDebugMsg( "Entered" );
QgsDataItem* dataItem = mModel->dataItem( mBrowserView->currentIndex() );
if ( dataItem != NULL && dataItem->type() == QgsDataItem::Layer )
{
QgsLayerItem *layerItem = qobject_cast<QgsLayerItem*>( dataItem );
if ( layerItem != NULL )
{
QgsMapLayer::LayerType type = layerItem->mapLayerType();
QString layerMetadata = tr( "Error" );
QgsCoordinateReferenceSystem layerCrs;
QString notice;
// temporarily override /Projections/defaultBehaviour to avoid dialog prompt
QSettings settings;
QString defaultProjectionOption = settings.value( "/Projections/defaultBehaviour", "prompt" ).toString();
if ( settings.value( "/Projections/defaultBehaviour", "prompt" ).toString() == "prompt" )
{
settings.setValue( "/Projections/defaultBehaviour", "useProject" );
}
// find root item
// we need to create a temporary layer to get metadata
// we could use a provider but the metadata is not as complete and "pretty" and this is easier
QgsDebugMsg( QString( "creating temporary layer using path %1" ).arg( layerItem->path() ) );
if ( type == QgsMapLayer::RasterLayer )
{
QgsDebugMsg( "creating raster layer" );
// should copy code from addLayer() to split uri ?
QgsRasterLayer* layer = new QgsRasterLayer( layerItem->uri(), layerItem->uri(), layerItem->providerKey() );
if ( layer != NULL )
{
layerCrs = layer->crs();
layerMetadata = layer->metadata();
delete layer;
}
}
else if ( type == QgsMapLayer::VectorLayer )
{
QgsDebugMsg( "creating vector layer" );
QgsVectorLayer* layer = new QgsVectorLayer( layerItem->uri(), layerItem->name(), layerItem->providerKey() );
if ( layer != NULL )
{
layerCrs = layer->crs();
layerMetadata = layer->metadata();
delete layer;
}
}
// restore /Projections/defaultBehaviour
if ( defaultProjectionOption == "prompt" )
{
settings.setValue( "/Projections/defaultBehaviour", defaultProjectionOption );
}
// initialize dialog
QDialog *dialog = new QDialog( this );
Ui::QgsBrowserLayerPropertiesBase ui;
ui.setupUi( dialog );
dialog->setWindowTitle( tr( "Layer Properties" ) );
ui.leName->setText( layerItem->name() );
ui.leSource->setText( layerItem->path() );
ui.leProvider->setText( layerItem->providerKey() );
QString myStyle = QgsApplication::reportStyleSheet();
ui.txtbMetadata->document()->setDefaultStyleSheet( myStyle );
ui.txtbMetadata->setHtml( layerMetadata );
// report if layer was set to to project crs without prompt (may give a false positive)
if ( defaultProjectionOption == "prompt" )
{
QgsCoordinateReferenceSystem defaultCrs =
QgisApp::instance()->mapCanvas()->mapRenderer()->destinationCrs();
if ( layerCrs == defaultCrs )
ui.lblNotice->setText( "NOTICE: Layer srs set from project (" + defaultCrs.authid() + ")" );
}
dialog->show();
}
}
}
QByteArray* QgsWCSServer::getCoverage()
{
QStringList wcsLayersId = mConfigParser->wcsLayers();
QList<QgsMapLayer*> layerList;
QStringList mErrors = QStringList();
//defining coverage name
QString coveName = "";
//read COVERAGE
QMap<QString, QString>::const_iterator cove_name_it = mParameters.find( "COVERAGE" );
if ( cove_name_it != mParameters.end() )
{
coveName = cove_name_it.value();
}
if ( coveName == "" )
{
QMap<QString, QString>::const_iterator cove_name_it = mParameters.find( "IDENTIFIER" );
if ( cove_name_it != mParameters.end() )
{
coveName = cove_name_it.value();
}
}
if ( coveName == "" )
{
mErrors << QString( "COVERAGE is mandatory" );
}
layerList = mConfigParser->mapLayerFromCoverage( coveName );
if ( layerList.size() < 1 )
{
mErrors << QString( "The layer for the COVERAGE '%1' is not found" ).arg( coveName );
}
bool conversionSuccess;
// BBOX
bool bboxOk = false;
double minx = 0.0, miny = 0.0, maxx = 0.0, maxy = 0.0;
// WIDTh and HEIGHT
int width = 0, height = 0;
// CRS
QString crs = "";
// read BBOX
QMap<QString, QString>::const_iterator bbIt = mParameters.find( "BBOX" );
if ( bbIt == mParameters.end() )
{
minx = 0; miny = 0; maxx = 0; maxy = 0;
}
else
{
bboxOk = true;
QString bbString = bbIt.value();
minx = bbString.section( ",", 0, 0 ).toDouble( &conversionSuccess );
if ( !conversionSuccess ) {bboxOk = false;}
miny = bbString.section( ",", 1, 1 ).toDouble( &conversionSuccess );
if ( !conversionSuccess ) {bboxOk = false;}
maxx = bbString.section( ",", 2, 2 ).toDouble( &conversionSuccess );
if ( !conversionSuccess ) {bboxOk = false;}
maxy = bbString.section( ",", 3, 3 ).toDouble( &conversionSuccess );
if ( !conversionSuccess ) {bboxOk = false;}
}
if ( !bboxOk )
{
mErrors << QString( "The BBOX is mandatory and has to be xx.xxx,yy.yyy,xx.xxx,yy.yyy" );
}
// read WIDTH
width = mParameters.value( "WIDTH", "0" ).toInt( &conversionSuccess );
if ( !conversionSuccess )
width = 0;
// read HEIGHT
height = mParameters.value( "HEIGHT", "0" ).toInt( &conversionSuccess );
if ( !conversionSuccess )
{
height = 0;
}
if ( width < 0 || height < 0 )
{
mErrors << QString( "The WIDTH and HEIGHT are mandatory and have to be integer" );
}
crs = mParameters.value( "CRS", "" );
if ( crs == "" )
{
mErrors << QString( "The CRS is mandatory" );
}
if ( mErrors.count() != 0 )
{
throw QgsMapServiceException( "RequestNotWellFormed", mErrors.join( ". " ) );
}
QgsCoordinateReferenceSystem requestCRS = QgsCRSCache::instance()->crsByAuthId( crs );
if ( !requestCRS.isValid() )
{
mErrors << QString( "Could not create request CRS" );
throw QgsMapServiceException( "RequestNotWellFormed", mErrors.join( ". " ) );
}
QgsRectangle rect( minx, miny, maxx, maxy );
QgsMapLayer* layer = layerList.at( 0 );
QgsRasterLayer* rLayer = dynamic_cast<QgsRasterLayer*>( layer );
if ( rLayer && wcsLayersId.contains( rLayer->id() ) )
{
// RESPONSE_CRS
QgsCoordinateReferenceSystem responseCRS = rLayer->crs();
crs = mParameters.value( "RESPONSE_CRS", "" );
if ( crs != "" )
{
responseCRS = QgsCRSCache::instance()->crsByAuthId( crs );
if ( !responseCRS.isValid() )
{
responseCRS = rLayer->crs();
}
}
// transform rect
if ( requestCRS != rLayer->crs() )
{
QgsCoordinateTransform t( requestCRS, rLayer->crs() );
rect = t.transformBoundingBox( rect );
}
QTemporaryFile tempFile;
tempFile.open();
QgsRasterFileWriter fileWriter( tempFile.fileName() );
// clone pipe/provider
QgsRasterPipe* pipe = new QgsRasterPipe();
if ( !pipe->set( rLayer->dataProvider()->clone() ) )
{
mErrors << QString( "Cannot set pipe provider" );
throw QgsMapServiceException( "RequestNotWellFormed", mErrors.join( ". " ) );
}
// add projector if necessary
if ( responseCRS != rLayer->crs() )
{
QgsRasterProjector * projector = new QgsRasterProjector;
projector->setCRS( rLayer->crs(), responseCRS );
if ( !pipe->insert( 2, projector ) )
{
mErrors << QString( "Cannot set pipe projector" );
throw QgsMapServiceException( "RequestNotWellFormed", mErrors.join( ". " ) );
}
}
QgsRasterFileWriter::WriterError err = fileWriter.writeRaster( pipe, width, height, rect, responseCRS );
if ( err != QgsRasterFileWriter::NoError )
{
mErrors << QString( "Cannot write raster error code: %1" ).arg( err );
throw QgsMapServiceException( "RequestNotWellFormed", mErrors.join( ". " ) );
}
delete pipe;
QByteArray* ba = 0;
ba = new QByteArray();
*ba = tempFile.readAll();
return ba;
}
return 0;
}
int QgsRasterCalculator::processCalculation( QProgressDialog* p )
{
//prepare search string / tree
QString errorString;
QgsRasterCalcNode* calcNode = QgsRasterCalcNode::parseRasterCalcString( mFormulaString, errorString );
if ( !calcNode )
{
//error
}
double targetGeoTransform[6];
outputGeoTransform( targetGeoTransform );
//open all input rasters for reading
QMap< QString, GDALRasterBandH > mInputRasterBands; //raster references and corresponding scanline data
QMap< QString, QgsRasterMatrix* > inputScanLineData; //stores raster references and corresponding scanline data
QVector< GDALDatasetH > mInputDatasets; //raster references and corresponding dataset
QVector<QgsRasterCalculatorEntry>::const_iterator it = mRasterEntries.constBegin();
for ( ; it != mRasterEntries.constEnd(); ++it )
{
if ( !it->raster ) // no raster layer in entry
{
return 2;
}
GDALDatasetH inputDataset = GDALOpen( TO8( it->raster->source() ), GA_ReadOnly );
if ( inputDataset == NULL )
{
return 2;
}
//check if the input dataset is south up or rotated. If yes, use GDALAutoCreateWarpedVRT to create a north up raster
double inputGeoTransform[6];
if ( GDALGetGeoTransform( inputDataset, inputGeoTransform ) == CE_None
&& ( inputGeoTransform[1] < 0.0
|| inputGeoTransform[2] != 0.0
|| inputGeoTransform[4] != 0.0
|| inputGeoTransform[5] > 0.0 ) )
{
GDALDatasetH vDataset = GDALAutoCreateWarpedVRT( inputDataset, NULL, NULL, GRA_NearestNeighbour, 0.2, NULL );
mInputDatasets.push_back( vDataset );
mInputDatasets.push_back( inputDataset );
inputDataset = vDataset;
}
else
{
mInputDatasets.push_back( inputDataset );
}
GDALRasterBandH inputRasterBand = GDALGetRasterBand( inputDataset, it->bandNumber );
if ( inputRasterBand == NULL )
{
return 2;
}
int nodataSuccess;
double nodataValue = GDALGetRasterNoDataValue( inputRasterBand, &nodataSuccess );
mInputRasterBands.insert( it->ref, inputRasterBand );
inputScanLineData.insert( it->ref, new QgsRasterMatrix( mNumOutputColumns, 1, new float[mNumOutputColumns], nodataValue ) );
}
//open output dataset for writing
GDALDriverH outputDriver = openOutputDriver();
if ( outputDriver == NULL )
{
return 1;
}
GDALDatasetH outputDataset = openOutputFile( outputDriver );
//copy the projection info from the first input raster
if ( mRasterEntries.size() > 0 )
{
QgsRasterLayer* rl = mRasterEntries.at( 0 ).raster;
if ( rl )
{
char* crsWKT = 0;
OGRSpatialReferenceH ogrSRS = OSRNewSpatialReference( NULL );
if ( OSRSetFromUserInput( ogrSRS, rl->crs().authid().toUtf8().constData() ) == OGRERR_NONE )
{
OSRExportToWkt( ogrSRS, &crsWKT );
GDALSetProjection( outputDataset, crsWKT );
}
else
{
GDALSetProjection( outputDataset, TO8( rl->crs().toWkt() ) );
}
OSRDestroySpatialReference( ogrSRS );
CPLFree( crsWKT );
}
}
GDALRasterBandH outputRasterBand = GDALGetRasterBand( outputDataset, 1 );
float outputNodataValue = -FLT_MAX;
GDALSetRasterNoDataValue( outputRasterBand, outputNodataValue );
float* resultScanLine = ( float * ) CPLMalloc( sizeof( float ) * mNumOutputColumns );
if ( p )
{
p->setMaximum( mNumOutputRows );
}
QgsRasterMatrix resultMatrix;
//read / write line by line
for ( int i = 0; i < mNumOutputRows; ++i )
{
if ( p )
{
p->setValue( i );
}
if ( p && p->wasCanceled() )
{
break;
}
//fill buffers
QMap< QString, QgsRasterMatrix* >::iterator bufferIt = inputScanLineData.begin();
for ( ; bufferIt != inputScanLineData.end(); ++bufferIt )
{
double sourceTransformation[6];
GDALRasterBandH sourceRasterBand = mInputRasterBands[bufferIt.key()];
GDALGetGeoTransform( GDALGetBandDataset( sourceRasterBand ), sourceTransformation );
//the function readRasterPart calls GDALRasterIO (and ev. does some conversion if raster transformations are not the same)
readRasterPart( targetGeoTransform, 0, i, mNumOutputColumns, 1, sourceTransformation, sourceRasterBand, bufferIt.value()->data() );
}
if ( calcNode->calculate( inputScanLineData, resultMatrix ) )
{
bool resultIsNumber = resultMatrix.isNumber();
float* calcData;
if ( resultIsNumber ) //scalar result. Insert number for every pixel
{
calcData = new float[mNumOutputColumns];
for ( int j = 0; j < mNumOutputColumns; ++j )
{
calcData[j] = resultMatrix.number();
}
}
else //result is real matrix
{
calcData = resultMatrix.data();
}
//replace all matrix nodata values with output nodatas
for ( int j = 0; j < mNumOutputColumns; ++j )
{
if ( calcData[j] == resultMatrix.nodataValue() )
{
calcData[j] = outputNodataValue;
}
}
//write scanline to the dataset
if ( GDALRasterIO( outputRasterBand, GF_Write, 0, i, mNumOutputColumns, 1, calcData, mNumOutputColumns, 1, GDT_Float32, 0, 0 ) != CE_None )
{
qWarning( "RasterIO error!" );
}
if ( resultIsNumber )
{
delete[] calcData;
}
}
}
if ( p )
{
p->setValue( mNumOutputRows );
}
//close datasets and release memory
delete calcNode;
QMap< QString, QgsRasterMatrix* >::iterator bufferIt = inputScanLineData.begin();
for ( ; bufferIt != inputScanLineData.end(); ++bufferIt )
{
delete bufferIt.value();
}
inputScanLineData.clear();
QVector< GDALDatasetH >::iterator datasetIt = mInputDatasets.begin();
for ( ; datasetIt != mInputDatasets.end(); ++ datasetIt )
{
GDALClose( *datasetIt );
}
if ( p && p->wasCanceled() )
{
//delete the dataset without closing (because it is faster)
GDALDeleteDataset( outputDriver, mOutputFile.toLocal8Bit().data() );
return 3;
}
GDALClose( outputDataset );
CPLFree( resultScanLine );
return 0;
}
