51#include "qgsgdalprovider.h"
67#include <QApplication>
75#include <QFontMetrics>
82#include <QRegularExpression>
86#define ERR(message) QGS_ERROR_MESSAGE(message,"Raster layer")
106 , QSTRING_NOT_SET( QStringLiteral(
"Not Set" ) )
107 , TRSTRING_NOT_SET( tr(
"Not Set" ) )
117 const QString &baseName,
118 const QString &providerKey,
122 , QSTRING_NOT_SET( QStringLiteral(
"Not Set" ) )
123 , TRSTRING_NOT_SET( tr(
"Not Set" ) )
134 QgsDataProvider::ReadFlags providerFlags = QgsDataProvider::ReadFlags();
140 setDataSource( uri, baseName, providerKey, providerOptions, providerFlags );
168 layer->mElevationProperties = mElevationProperties->
clone();
169 layer->mElevationProperties->setParent( layer );
173 for (
int i = 1; i < mPipe->size(); i++ )
175 if ( mPipe->at( i ) )
176 layer->
pipe()->
set( mPipe->at( i )->clone() );
187 if ( !mElevationProperties->
isEnabled() )
201 const bool myIsValid = QgsGdalProvider::isValidRasterFileName( fileNameQString, retErrMsg );
216 const QFileInfo fi(
name );
222 t = fi.lastModified();
249 if ( !mDataProvider )
return 0;
257 if ( !mDataProvider )
return QString();
265 if ( !mDataProvider )
274 if ( !mDataProvider )
278 for (
int bandNo = 1; bandNo <=
bandCount(); ++bandNo )
306 return mDataProvider;
313 return mDataProvider;
351 bool restoreOldResamplingStage =
false;
359 if ( mDataProvider !=
nullptr &&
364 restoreOldResamplingStage =
true;
373 drawer.
draw( theQPainter, rasterViewPort, qgsMapToPixel );
375 if ( restoreOldResamplingStage )
380 QgsDebugMsgLevel( QStringLiteral(
"total raster draw time (ms): %1" ).arg( time.elapsed(), 5 ), 4 );
395 if ( !mDataProvider )
399 QString myMetadata = QStringLiteral(
"<html><head></head>\n<body>\n" );
404 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Information from provider" ) + QStringLiteral(
"</h1>\n<hr>\n" ) + QStringLiteral(
"<table class=\"list-view\">\n" );
406 myMetadata += QStringLiteral(
"\n" ) %
408 QStringLiteral(
"<tr><td class=\"highlight\">" ) % tr(
"Extent" ) % QStringLiteral(
"</td><td>" ) %
extent().
toString() % QStringLiteral(
"</td></tr>\n" ) %
411 QStringLiteral(
"<tr><td class=\"highlight\">" ) % tr(
"Width" ) % QStringLiteral(
"</td><td>" );
413 myMetadata += QString::number(
width() );
415 myMetadata += tr(
"n/a" );
416 myMetadata += QStringLiteral(
"</td></tr>\n" ) %
419 QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Height" ) + QStringLiteral(
"</td><td>" );
421 myMetadata += QString::number(
height() );
423 myMetadata += tr(
"n/a" );
424 myMetadata += QStringLiteral(
"</td></tr>\n" ) %
427 QStringLiteral(
"<tr><td class=\"highlight\">" ) % tr(
"Data type" ) % QStringLiteral(
"</td><td>" );
432 myMetadata += tr(
"Byte - Eight bit unsigned integer" );
435 myMetadata += tr(
"UInt16 - Sixteen bit unsigned integer " );
438 myMetadata += tr(
"Int16 - Sixteen bit signed integer " );
441 myMetadata += tr(
"UInt32 - Thirty two bit unsigned integer " );
444 myMetadata += tr(
"Int32 - Thirty two bit signed integer " );
447 myMetadata += tr(
"Float32 - Thirty two bit floating point " );
450 myMetadata += tr(
"Float64 - Sixty four bit floating point " );
453 myMetadata += tr(
"CInt16 - Complex Int16 " );
456 myMetadata += tr(
"CInt32 - Complex Int32 " );
459 myMetadata += tr(
"CFloat32 - Complex Float32 " );
462 myMetadata += tr(
"CFloat64 - Complex Float64 " );
465 myMetadata += tr(
"Could not determine raster data type." );
467 myMetadata += QStringLiteral(
"</td></tr>\n" ) %
473 QStringLiteral(
"</table>\n<br><br>" );
479 myMetadata += QStringLiteral(
"<h1>" ) % tr(
"Identification" ) % QStringLiteral(
"</h1>\n<hr>\n" ) %
481 QStringLiteral(
"<br><br>\n" ) %
484 QStringLiteral(
"<h1>" ) % tr(
"Extent" ) % QStringLiteral(
"</h1>\n<hr>\n" ) %
486 QStringLiteral(
"<br><br>\n" ) %
489 QStringLiteral(
"<h1>" ) % tr(
"Access" ) % QStringLiteral(
"</h1>\n<hr>\n" ) %
491 QStringLiteral(
"<br><br>\n" ) %
494 QStringLiteral(
"</table>\n<br><br><h1>" ) % tr(
"Bands" ) % QStringLiteral(
"</h1>\n<hr>\n<table class=\"list-view\">\n" ) %
497 QStringLiteral(
"<tr><td class=\"highlight\">" ) % tr(
"Band count" ) % QStringLiteral(
"</td><td>" ) % QString::number(
bandCount() ) % QStringLiteral(
"</td></tr>\n" );
500 myMetadata += QStringLiteral(
"</table>\n<br><table width=\"100%\" class=\"tabular-view\">\n" ) %
501 QStringLiteral(
"<tr><th>" ) % tr(
"Number" ) % QStringLiteral(
"</th><th>" ) % tr(
"Band" ) % QStringLiteral(
"</th><th>" ) % tr(
"No-Data" ) % QStringLiteral(
"</th><th>" ) %
502 tr(
"Min" ) % QStringLiteral(
"</th><th>" ) % tr(
"Max" ) % QStringLiteral(
"</th></tr>\n" );
509 rowClass = QStringLiteral(
"class=\"odd-row\"" );
511 myMetadata += QStringLiteral(
"<tr " ) % rowClass % QStringLiteral(
"><td>" ) % QString::number( i ) % QStringLiteral(
"</td><td>" ) %
bandName( i ) % QStringLiteral(
"</td><td>" );
514 myMetadata += QString::number(
dataProvider()->sourceNoDataValue( i ) );
516 myMetadata += tr(
"n/a" );
517 myMetadata += QLatin1String(
"</td>" );
522 myMetadata += QStringLiteral(
"<td>" ) % QString::number( myRasterBandStats.
minimumValue,
'f', 10 ) % QStringLiteral(
"</td>" ) %
523 QStringLiteral(
"<td>" ) % QString::number( myRasterBandStats.
maximumValue,
'f', 10 ) % QStringLiteral(
"</td>" );
527 myMetadata += QStringLiteral(
"<td>" ) % tr(
"n/a" ) % QStringLiteral(
"</td><td>" ) % tr(
"n/a" ) % QStringLiteral(
"</td>" );
530 myMetadata += QLatin1String(
"</tr>\n" );
534 myMetadata += QStringLiteral(
"</table>\n<br><br>" ) %
537 QStringLiteral(
"<h1>" ) % tr(
"Contacts" ) % QStringLiteral(
"</h1>\n<hr>\n" ) %
539 QStringLiteral(
"<br><br>\n" ) %
542 QStringLiteral(
"<h1>" ) % tr(
"References" ) % QStringLiteral(
"</h1>\n<hr>\n" ) %
544 QStringLiteral(
"<br><br>\n" ) %
547 QStringLiteral(
"<h1>" ) % tr(
"History" ) % QStringLiteral(
"</h1>\n<hr>\n" ) %
549 QStringLiteral(
"<br><br>\n" ) %
551 QStringLiteral(
"\n</body>\n</html>\n" );
559 Qgis::MapLayerProperties res;
576 if ( mDataProvider &&
581 const QList<QgsColorRampShader::ColorRampItem> myColorRampItemList = mDataProvider->
colorTable( bandNumber );
582 if ( !myColorRampItemList.isEmpty() )
588 const int mySize = 100;
589 QPixmap myPalettePixmap( mySize, mySize );
590 QPainter myQPainter( &myPalettePixmap );
592 QImage myQImage = QImage( mySize, mySize, QImage::Format_RGB32 );
594 myPalettePixmap.fill();
596 const double myStep = (
static_cast< double >( myColorRampItemList.size() ) - 1 ) /
static_cast< double >( mySize * mySize );
597 double myValue = 0.0;
598 for (
int myRow = 0; myRow < mySize; myRow++ )
600 QRgb *myLineBuffer =
reinterpret_cast< QRgb *
>( myQImage.scanLine( myRow ) );
601 for (
int myCol = 0; myCol < mySize; myCol++ )
603 myValue = myStep *
static_cast< double >( myCol + myRow * mySize );
605 myShader.
shade( myValue, &c1, &c2, &c3, &c4 );
606 myLineBuffer[ myCol ] = qRgba( c1, c2, c3, c4 );
610 myQPainter.drawImage( 0, 0, myQImage );
611 return myPalettePixmap;
613 const QPixmap myNullPixmap;
619 const QPixmap myNullPixmap;
641 if ( mDataProvider &&
653 if ( mDataProvider &&
665 if ( !mPipe->renderer() || mPipe->renderer()->opacity() ==
opacity )
668 mPipe->renderer()->setOpacity(
opacity );
677 return mPipe->renderer() ? mPipe->renderer()->opacity() : 1.0;
680void QgsRasterLayer::init()
688 setRendererForDrawingStyle( Qgis::RasterDrawingStyle::Undefined );
703 mPipe = std::make_unique< QgsRasterPipe >();
704 mDataProvider =
nullptr;
718 std::unique_ptr< QgsScopedRuntimeProfile > profile;
720 profile = std::make_unique< QgsScopedRuntimeProfile >( tr(
"Create %1 provider" ).arg( provider ), QStringLiteral(
"projectload" ) );
723 if ( !mDataProvider )
730 mDataProvider->setParent(
this );
733 mPipe->set( mDataProvider );
734 if ( !mDataProvider->
isValid() )
744 QgsDebugMsgLevel( QStringLiteral(
"Set Data provider QgsLayerMetadata identifier[%1]" ).arg(
metadata().identifier() ), 4 );
747 if ( provider == QLatin1String(
"gdal" ) )
780 if ( ( mDataProvider->
bandCount() > 1 ) )
793 mRasterType = Qgis::RasterLayerType::MultiBand;
799 mRasterType = Qgis::RasterLayerType::SingleBandColorData;
814 QString errorMessage;
818 errorMessage.clear();
819 QgsDebugMsgLevel(
"Native Raster Raster Attribute Table read failed " + errorMessage, 2 );
820 if ( QFile::exists( mDataProvider->
dataSourceUri( ) +
".vat.dbf" ) )
822 std::unique_ptr<QgsRasterAttributeTable> rat = std::make_unique<QgsRasterAttributeTable>();
823 hasRat = rat->readFromFile( mDataProvider->
dataSourceUri( ) +
".vat.dbf", &errorMessage );
826 if ( rat->isValid( &errorMessage ) )
833 QgsDebugMsgLevel(
"DBF Raster Attribute Table is not valid, skipping: " + errorMessage, 2 );
838 QgsDebugMsgLevel(
"DBF Raster Attribute Table read failed " + errorMessage, 2 );
847 switch ( mRasterType )
849 case Qgis::RasterLayerType::SingleBandColorData:
852 setRendererForDrawingStyle( Qgis::RasterDrawingStyle::SingleBandColorData );
865 const QList<QgsColorRampShader::ColorRampItem> colorTable = mDataProvider->
colorTable( 1 );
884 case Qgis::RasterLayerType::MultiBand:
897 for (
int bandNo = 1; bandNo <= mDataProvider->
bandCount(); bandNo++ )
901 if (
auto *lRenderer = mPipe->renderer() )
903 lRenderer->setAlphaBand( bandNo );
924 QString resampling = settings.
value( QStringLiteral(
"/Raster/defaultZoomedInResampling" ), QStringLiteral(
"nearest neighbour" ) ).toString();
925 if ( resampling == QLatin1String(
"bilinear" ) )
930 else if ( resampling == QLatin1String(
"cubic" ) )
935 resampling = settings.
value( QStringLiteral(
"/Raster/defaultZoomedOutResampling" ), QStringLiteral(
"nearest neighbour" ) ).toString();
936 if ( resampling == QLatin1String(
"bilinear" ) )
942 const double maxOversampling = settings.
value( QStringLiteral(
"/Raster/defaultOversampling" ), 2.0 ).toDouble();
947 settings.
value( QStringLiteral(
"/Raster/defaultEarlyResampling" ),
false ).toBool() )
959 mPipe->set( projector );
967 identifyFormat = Qgis::RasterIdentifyFormat::Html;
971 identifyFormat = Qgis::RasterIdentifyFormat::Feature;
975 identifyFormat = Qgis::RasterIdentifyFormat::Text;
979 identifyFormat = Qgis::RasterIdentifyFormat::Value;
1003void QgsRasterLayer::setDataSourcePrivate(
const QString &dataSource,
const QString &baseName,
const QString &provider,
1008 const bool hadRenderer(
renderer() );
1010 QDomImplementation domImplementation;
1011 QDomDocumentType documentType;
1014 bool loadDefaultStyleFlag =
false;
1017 loadDefaultStyleFlag =
true;
1021 if ( hadRenderer && ! loadDefaultStyleFlag )
1023 documentType = domImplementation.createDocumentType(
1024 QStringLiteral(
"qgis" ), QStringLiteral(
"http://mrcc.com/qgis.dtd" ), QStringLiteral(
"SYSTEM" ) );
1026 QDomDocument doc = QDomDocument( documentType );
1027 QDomElement styleElem = doc.createElement( QStringLiteral(
"qgis" ) );
1028 styleElem.setAttribute( QStringLiteral(
"version" ),
Qgis::version() );
1030 if ( !
writeSymbology( styleElem, doc, errorMsg, writeContext ) )
1032 QgsDebugMsg( QStringLiteral(
"Could not store symbology for layer %1: %2" )
1038 doc.appendChild( styleElem );
1040 mOriginalStyleDocument = doc;
1041 mOriginalStyleElement = styleElem;
1045 if ( mDataProvider )
1046 closeDataProvider();
1050 for (
int i = mPipe->size() - 1; i >= 0; --i )
1060 if ( mDataProvider )
1066 bool defaultLoadedFlag =
false;
1067 bool restoredStyle =
false;
1068 if ( loadDefaultStyleFlag )
1072 else if ( !mOriginalStyleElement.isNull() )
1075 if ( !
readSymbology( mOriginalStyleElement, errorMsg, readContext ) )
1077 QgsDebugMsg( QStringLiteral(
"Could not restore symbology for layer %1: %2" )
1084 restoredStyle =
true;
1091 if ( !defaultLoadedFlag && !restoredStyle )
1098void QgsRasterLayer::writeRasterAttributeTableExternalPaths( QDomNode &layerNode, QDomDocument &doc,
const QgsReadWriteContext &context )
const
1104 QDomElement elem = doc.createElement( QStringLiteral(
"FileBasedAttributeTables" ) );
1105 for (
int bandNo = 1; bandNo <=
bandCount(); bandNo++ )
1109 QDomElement ratElem = doc.createElement( QStringLiteral(
"AttributeTable" ) );
1110 ratElem.setAttribute( QStringLiteral(
"band" ), bandNo );
1111 ratElem.setAttribute( QStringLiteral(
"path" ), context.
pathResolver().
writePath( rat->filePath( ) ) );
1112 elem.appendChild( ratElem );
1115 layerNode.appendChild( elem );
1119void QgsRasterLayer::readRasterAttributeTableExternalPaths(
const QDomNode &layerNode,
QgsReadWriteContext &context )
const
1121 const QDomElement ratsElement = layerNode.firstChildElement( QStringLiteral(
"FileBasedAttributeTables" ) );
1122 if ( !ratsElement.isNull() && ratsElement.childNodes().count() > 0 )
1124 const QDomNodeList ratElements { ratsElement.childNodes() };
1125 for (
int idx = 0; idx < ratElements.count(); idx++ )
1127 const QDomNode ratElement { ratElements.at( idx ) };
1128 if ( ratElement.attributes().contains( QStringLiteral(
"band" ) )
1129 && ratElement.attributes().contains( QStringLiteral(
"path" ) ) )
1132 const int band { ratElement.attributes().namedItem( QStringLiteral(
"band" ) ).nodeValue().toInt( &ok ) };
1135 if ( ! ok || band <= 0 || band >
bandCount() )
1137 QgsMessageLog::logMessage( tr(
"Error reading raster attribute table: invalid band %1." ).arg( band ), tr(
"Raster" ) );
1141 const QString path { context.
pathResolver().
readPath( ratElement.attributes().namedItem( QStringLiteral(
"path" ) ).nodeValue() ) };
1142 if ( ! QFile::exists( path ) )
1144 QgsMessageLog::logMessage( tr(
"Error loading raster attribute table, file not found: %1." ).arg( path ), tr(
"Raster" ) );
1148 std::unique_ptr<QgsRasterAttributeTable> rat = std::make_unique<QgsRasterAttributeTable>();
1149 QString errorMessage;
1150 if ( ! rat->readFromFile( path, &errorMessage ) )
1152 QgsMessageLog::logMessage( tr(
"Error loading raster attribute table from path %1: %2" ).arg( path, errorMessage ), tr(
"Raster" ) );
1163void QgsRasterLayer::closeDataProvider()
1168 mPipe->remove( mDataProvider );
1169 mDataProvider =
nullptr;
1172void QgsRasterLayer::computeMinMax(
int band,
1177 double &min,
double &max )
1181 min = std::numeric_limits<double>::quiet_NaN();
1182 max = std::numeric_limits<double>::quiet_NaN();
1183 if ( !mDataProvider )
1190 if ( myRasterBandStats.
statsGathered == QgsRasterBandStats::Stats::None )
1193 switch ( mDataProvider->
dataType( band ) )
1204 myRasterBandStats.
maximumValue = std::numeric_limits<uint16_t>::max();
1210 myRasterBandStats.
maximumValue = std::numeric_limits<uint32_t>::max();
1216 myRasterBandStats.
minimumValue = std::numeric_limits<int16_t>::lowest();
1217 myRasterBandStats.
maximumValue = std::numeric_limits<int16_t>::max();
1223 myRasterBandStats.
minimumValue = std::numeric_limits<int32_t>::lowest();
1224 myRasterBandStats.
maximumValue = std::numeric_limits<int32_t>::max();
1230 myRasterBandStats.
minimumValue = std::numeric_limits<float_t>::lowest();
1231 myRasterBandStats.
maximumValue = std::numeric_limits<float_t>::max();
1237 myRasterBandStats.
minimumValue = std::numeric_limits<double_t>::lowest();
1238 myRasterBandStats.
maximumValue = std::numeric_limits<double_t>::max();
1263 QgsDebugMsgLevel( QStringLiteral(
"myLower = %1 myUpper = %2" ).arg( myLower ).arg( myUpper ), 4 );
1266 QgsDebugMsgLevel( QStringLiteral(
"band = %1 min = %2 max = %3" ).arg( band ).arg( min ).arg( max ), 4 );
1274 return mDataProvider ? mDataProvider->
ignoreExtents() :
false;
1281 return mTemporalProperties;
1288 return mElevationProperties;
1299 generateLookupTableFlag,
1300 mPipe->renderer() );
1307 bool generateLookupTableFlag,
1313 if ( !rasterRenderer || !mDataProvider )
1319 QList<QgsContrastEnhancement *> myEnhancements;
1325 const QString rendererType = rasterRenderer->
type();
1326 if ( rendererType == QLatin1String(
"singlebandgray" ) )
1329 if ( !myGrayRenderer )
1333 myBands << myGrayRenderer->
grayBand();
1334 myRasterRenderer = myGrayRenderer;
1337 else if ( rendererType == QLatin1String(
"multibandcolor" ) )
1340 if ( !myMultiBandRenderer )
1345 myRasterRenderer = myMultiBandRenderer;
1348 else if ( rendererType == QLatin1String(
"singlebandpseudocolor" ) )
1351 if ( !myPseudoColorRenderer )
1355 myBands << myPseudoColorRenderer->
band();
1356 myRasterRenderer = myPseudoColorRenderer;
1357 myMinMaxOrigin = myPseudoColorRenderer->
minMaxOrigin();
1364 const auto constMyBands = myBands;
1365 for (
const int myBand : constMyBands )
1371 myEnhancement->setContrastEnhancementAlgorithm(
algorithm, generateLookupTableFlag );
1375 computeMinMax( myBand, myMinMaxOrigin, limits,
extent, sampleSize, min, max );
1377 if ( rendererType == QLatin1String(
"singlebandpseudocolor" ) )
1380 if ( ! myPseudoColorRenderer )
1388 bool minMaxChanged {
false };
1389 if ( ! std::isnan( min ) )
1392 minMaxChanged =
true;
1395 if ( ! std::isnan( max ) )
1398 minMaxChanged =
true;
1401 if ( minMaxChanged && myPseudoColorRenderer->
shader() )
1404 if ( colorRampShader )
1412 myEnhancement->setMinimumValue( min );
1413 myEnhancement->setMaximumValue( max );
1414 myEnhancements.append( myEnhancement.release() );
1419 myEnhancements.append(
nullptr );
1424 if ( rendererType == QLatin1String(
"singlebandgray" ) && myGrayRenderer )
1428 else if ( rendererType == QLatin1String(
"multibandcolor" ) && myMultiBandRenderer )
1436 qDeleteAll( myEnhancements );
1444 if ( myRasterRenderer )
1449 if ( rasterRenderer ==
renderer() )
1466 ce = singleBandRenderer->contrastEnhancement();
1505 if ( mDataProvider &&
1506 mLastRectangleUsedByRefreshContrastEnhancementIfNeeded !=
extent &&
1510 refreshRenderer( rasterRenderer,
extent );
1518 if ( mDataProvider )
1534 mLastRectangleUsedByRefreshContrastEnhancementIfNeeded =
extent;
1537 computeMinMax( sbpcr->
band(),
1547 if ( colorRampShader )
1560 if ( colorRampShader )
1575 mLastRectangleUsedByRefreshContrastEnhancementIfNeeded =
extent;
1585 if ( singleBandRenderer )
1587 else if ( multiBandRenderer )
1613 if ( !
isValid() || !mDataProvider )
1615 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider" ), 3 );
1616 return customProperty( QStringLiteral(
"storedSubsetString" ) ).toString();
1629 if ( !
isValid() || !mDataProvider )
1631 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider or while editing" ), 3 );
1669 QString defaultLimits;
1674 key = QStringLiteral(
"singleBand" );
1684 key = QStringLiteral(
"multiBandSingleByte" );
1692 key = QStringLiteral(
"multiBandMultiByte" );
1700 if ( key.isEmpty() )
1702 QgsDebugMsgLevel( QStringLiteral(
"No default contrast enhancement for this drawing style" ), 2 );
1709 const QString myAlgorithmString = mySettings.value(
"/Raster/defaultContrastEnhancementAlgorithm/" + key, defaultAlg ).toString();
1714 const QString myLimitsString = mySettings.value(
"/Raster/defaultContrastEnhancementLimits/" + key, defaultLimits ).toString();
1740 if ( mDataProvider )
1742 QgsDebugMsgLevel( QStringLiteral(
"About to mDataProvider->setLayerOrder(layers)." ), 4 );
1752 if ( mDataProvider )
1754 QgsDebugMsgLevel( QStringLiteral(
"About to mDataProvider->setSubLayerVisibility(name, vis)." ), 4 );
1763 if ( !mDataProvider )
1772 if (
auto *lRenderer = mPipe->renderer() )
1774 if ( !lRenderer->accept( visitor ) )
1785 Q_UNUSED( errorMessage )
1787 QVariantMap localProps = QVariantMap( props );
1797 QDomElement constraintElem = doc.createElement( QStringLiteral(
"sld:LayerFeatureConstraints" ) );
1798 node.appendChild( constraintElem );
1800 const QDomElement featureTypeConstraintElem = doc.createElement( QStringLiteral(
"sld:FeatureTypeConstraint" ) );
1801 constraintElem.appendChild( featureTypeConstraintElem );
1803 QDomElement userStyleElem = doc.createElement( QStringLiteral(
"sld:UserStyle" ) );
1804 node.appendChild( userStyleElem );
1806 if ( !
name().isEmpty() )
1808 QDomElement nameElem = doc.createElement( QStringLiteral(
"sld:Name" ) );
1809 nameElem.appendChild( doc.createTextNode(
name() ) );
1810 userStyleElem.appendChild( nameElem );
1815 QDomElement abstractElem = doc.createElement( QStringLiteral(
"sld:Abstract" ) );
1816 abstractElem.appendChild( doc.createTextNode(
abstract() ) );
1817 userStyleElem.appendChild( abstractElem );
1820 if ( !
title().isEmpty() )
1822 QDomElement titleElem = doc.createElement( QStringLiteral(
"sld:Title" ) );
1823 titleElem.appendChild( doc.createTextNode(
title() ) );
1824 userStyleElem.appendChild( titleElem );
1827 QDomElement featureTypeStyleElem = doc.createElement( QStringLiteral(
"sld:FeatureTypeStyle" ) );
1828 userStyleElem.appendChild( featureTypeStyleElem );
1838 QDomElement typeStyleNameElem = doc.createElement( QStringLiteral(
"sld:Name" ) );
1839 featureTypeStyleElem.appendChild( typeStyleNameElem );
1842 QDomElement typeStyleRuleElem = doc.createElement( QStringLiteral(
"sld:Rule" ) );
1843 featureTypeStyleElem.appendChild( typeStyleRuleElem );
1851 QDomElement minScaleElem = doc.createElement( QStringLiteral(
"sld:MinScaleDenominator" ) );
1852 minScaleElem.appendChild( doc.createTextNode( QString::number(
maximumScale() ) ) );
1853 typeStyleRuleElem.appendChild( minScaleElem );
1856 QDomElement maxScaleElem = doc.createElement( QStringLiteral(
"sld:MaxScaleDenominator" ) );
1857 maxScaleElem.appendChild( doc.createTextNode( QString::number(
minimumScale() ) ) );
1858 typeStyleRuleElem.appendChild( maxScaleElem );
1862 mPipe->renderer()->toSld( doc, typeStyleRuleElem, localProps );
1867 const QDomNodeList elements = typeStyleRuleElem.elementsByTagName( QStringLiteral(
"sld:RasterSymbolizer" ) );
1868 if ( elements.size() != 0 )
1871 QDomElement rasterSymbolizerElem = elements.at( 0 ).toElement();
1874 auto vendorOptionWriter = [&]( QString
name, QString value )
1876 QDomElement vendorOptionElem = doc.createElement( QStringLiteral(
"sld:VendorOption" ) );
1877 vendorOptionElem.setAttribute( QStringLiteral(
"name" ),
name );
1878 vendorOptionElem.appendChild( doc.createTextNode( value ) );
1879 rasterSymbolizerElem.appendChild( vendorOptionElem );
1884 vendorOptionWriter( QStringLiteral(
"invertColors" ), QString::number( 1 ) );
1894 property = QStringLiteral(
"lightness" );
1897 property = QStringLiteral(
"luminosity" );
1900 property = QStringLiteral(
"average" );
1906 if ( !property.isEmpty() )
1907 vendorOptionWriter( QStringLiteral(
"grayScale" ), property );
1913 vendorOptionWriter( QStringLiteral(
"colorizeOn" ), QString::number(
hueSaturationFilter()->colorizeOn() ) );
1914 vendorOptionWriter( QStringLiteral(
"colorizeRed" ), QString::number(
hueSaturationFilter()->colorizeColor().red() ) );
1915 vendorOptionWriter( QStringLiteral(
"colorizeGreen" ), QString::number(
hueSaturationFilter()->colorizeColor().green() ) );
1916 vendorOptionWriter( QStringLiteral(
"colorizeBlue" ), QString::number(
hueSaturationFilter()->colorizeColor().blue() ) );
1918 vendorOptionWriter( QStringLiteral(
"colorizeStrength" ), QString::number(
hueSaturationFilter()->colorizeStrength() / 100.0 ) );
1919 vendorOptionWriter( QStringLiteral(
"saturation" ), QString::number(
hueSaturationFilter()->colorizeColor().saturationF() ) );
1928 const double sF = ( s - ( -100.0 ) ) / ( 100.0 - ( -100.0 ) );
1929 vendorOptionWriter( QStringLiteral(
"saturation" ), QString::number( sF ) );
1938 const double bF = ( b - ( -255.0 ) ) / ( 255.0 - ( -255.0 ) );
1939 vendorOptionWriter( QStringLiteral(
"brightness" ), QString::number( bF ) );
1947 const double cF = (
c - ( -100.0 ) ) / ( 100.0 - ( -100.0 ) );
1948 vendorOptionWriter( QStringLiteral(
"contrast" ), QString::number( cF ) );
1962 if ( newProps.contains( QStringLiteral(
"contrast" ) ) )
1965 double contrast = newProps[ QStringLiteral(
"contrast" ) ].toDouble();
1966 double percentage = ( contrast - ( -100.0 ) ) / ( 100.0 - ( -100.0 ) );
1967 if ( percentage <= 0.5 )
1970 gamma = percentage / 0.5;
1977 QDomElement globalContrastEnhancementElem = doc.createElement( QStringLiteral(
"sld:ContrastEnhancement" ) );
1978 rasterSymolizerElem.appendChild( globalContrastEnhancementElem );
1980 QDomElement gammaValueElem = doc.createElement( QStringLiteral(
"sld:GammaValue" ) );
1981 gammaValueElem.appendChild( doc.createTextNode( QString::number( gamma ) ) );
1982 globalContrastEnhancementElem.appendChild( gammaValueElem );
2009 return mPipe->renderer();
2016 return mPipe->resampleFilter();
2023 return mPipe->brightnessFilter();
2030 return mPipe->hueSaturationFilter();
2048 if ( mDataProvider )
2057 if ( ! mDataProvider )
2058 return QStringList();
2068 QImage image( size, format );
2073 if ( image.format() == QImage::Format_Indexed8 )
2075 image.setColor( 0, bgColor.rgba() );
2080 image.fill( bgColor );
2085 double mapUnitsPerPixel;
2091 mapUnitsPerPixel =
extent.
width() / image.width();
2092 y = ( image.height() -
extent.
height() / mapUnitsPerPixel ) / 2;
2097 x = ( image.width() -
extent.
width() / mapUnitsPerPixel ) / 2;
2100 const double pixelWidth =
extent.
width() / mapUnitsPerPixel;
2101 const double pixelHeight =
extent.
height() / mapUnitsPerPixel;
2105 rasterViewPort->
mWidth = image.width();
2106 rasterViewPort->
mHeight = image.height();
2114 QPainter *painter =
new QPainter( &image );
2115 draw( painter, rasterViewPort, mapToPixel );
2116 delete rasterViewPort;
2130 Q_UNUSED( errorMessage )
2133 QDomElement rasterRendererElem;
2135 const QDomElement layerElement = layer_node.toElement();
2142 QDomNode pipeNode = layer_node.firstChildElement( QStringLiteral(
"pipe" ) );
2143 if ( pipeNode.isNull() )
2145 pipeNode = layer_node;
2149 if ( !layer_node.firstChildElement( QStringLiteral(
"rasterproperties" ) ).isNull() )
2152 QDomNode layerNodeCopy = layer_node.cloneNode();
2153 QDomDocument doc = layerNodeCopy.ownerDocument();
2154 QDomElement rasterPropertiesElem = layerNodeCopy.firstChildElement( QStringLiteral(
"rasterproperties" ) );
2157 rasterRendererElem = layerNodeCopy.firstChildElement( QStringLiteral(
"rasterrenderer" ) );
2162 rasterRendererElem = pipeNode.firstChildElement( QStringLiteral(
"rasterrenderer" ) );
2165 if ( !rasterRendererElem.isNull() )
2167 const QString rendererType = rasterRendererElem.attribute( QStringLiteral(
"type" ) );
2181 const QDomElement brightnessElem = pipeNode.firstChildElement( QStringLiteral(
"brightnesscontrast" ) );
2182 if ( !brightnessElem.isNull() )
2192 const QDomElement hueSaturationElem = pipeNode.firstChildElement( QStringLiteral(
"huesaturation" ) );
2193 if ( !hueSaturationElem.isNull() )
2203 const QDomElement resampleElem = pipeNode.firstChildElement( QStringLiteral(
"rasterresampler" ) );
2204 if ( !resampleElem.isNull() )
2210 if ( mDataProvider )
2212 const QDomElement providerElem = pipeNode.firstChildElement( QStringLiteral(
"provider" ) );
2213 if ( !providerElem.isNull() )
2215 mDataProvider->
readXml( providerElem );
2220 const QDomNode resamplingStageElement = pipeNode.namedItem( QStringLiteral(
"resamplingStage" ) );
2221 if ( !resamplingStageElement.isNull() )
2223 const QDomElement e = resamplingStageElement.toElement();
2224 if ( e.text() == QLatin1String(
"provider" ) )
2226 else if ( e.text() == QLatin1String(
"resamplingFilter" ) )
2231 const QDomNode blendModeNode = layer_node.namedItem( QStringLiteral(
"blendMode" ) );
2232 if ( !blendModeNode.isNull() )
2234 const QDomElement e = blendModeNode.toElement();
2238 const QDomElement elemDataDefinedProperties = layer_node.firstChildElement( QStringLiteral(
"pipe-data-defined-properties" ) );
2239 if ( !elemDataDefinedProperties.isNull() )
2242 if ( categories.testFlag(
MapTips ) )
2243 setMapTipTemplate( layer_node.namedItem( QStringLiteral(
"mapTip" ) ).toElement().text() );
2257 return readSymbology( node, errorMessage, context, categories );
2268 const QDomNode pkeyNode = layer_node.namedItem( QStringLiteral(
"provider" ) );
2270 if ( pkeyNode.isNull() )
2276 const QDomElement pkeyElt = pkeyNode.toElement();
2290 const QDomNode rpNode = layer_node.namedItem( QStringLiteral(
"rasterproperties" ) );
2296 if ( !
mDataSource.contains( QLatin1String(
"crs=" ) ) && !
mDataSource.contains( QLatin1String(
"format=" ) ) )
2298 QgsDebugMsgLevel( QStringLiteral(
"Old WMS URI format detected -> adding params" ), 4 );
2301 QDomElement layerElement = rpNode.firstChildElement( QStringLiteral(
"wmsSublayer" ) );
2302 while ( !layerElement.isNull() )
2307 uri.
setParam( QStringLiteral(
"layers" ), layerElement.namedItem( QStringLiteral(
"name" ) ).toElement().text() );
2310 uri.
setParam( QStringLiteral(
"styles" ), layerElement.namedItem( QStringLiteral(
"style" ) ).toElement().text() );
2312 layerElement = layerElement.nextSiblingElement( QStringLiteral(
"wmsSublayer" ) );
2316 uri.
setParam( QStringLiteral(
"format" ), rpNode.namedItem( QStringLiteral(
"wmsFormat" ) ).toElement().text() );
2320 uri.
setParam( QStringLiteral(
"crs" ),
crs().authid() );
2329 QgsDataProvider::ReadFlags
flags = QgsDataProvider::ReadFlags();
2341 const QDomNode extentNode = layer_node.namedItem( QStringLiteral(
"extent" ) );
2342 if ( !extentNode.isNull() )
2357 mOriginalStyleElement = layer_node.namedItem( QStringLiteral(
"originalStyle" ) ).firstChildElement();
2358 if ( mOriginalStyleElement.isNull() )
2359 mOriginalStyleElement = layer_node.toElement();
2360 mOriginalStyleDocument = layer_node.ownerDocument();
2362 if ( ! mDataProvider )
2377 setRendererForDrawingStyle( Qgis::RasterDrawingStyle::SingleBandColorData );
2386 QDomNode stampNode = layer_node.namedItem(
"timestamp" );
2387 if ( !stampNode.isNull() )
2389 QDateTime stamp = QDateTime::fromString( stampNode.toElement().text(), Qt::ISODate );
2391 if ( stamp < mDataProvider->dataTimestamp() )
2394 closeDataProvider();
2397 if ( !
isValid() )
return false;
2403 const QDomElement noDataElement = layer_node.firstChildElement( QStringLiteral(
"noData" ) );
2405 const QDomNodeList noDataBandList = noDataElement.elementsByTagName( QStringLiteral(
"noDataList" ) );
2407 for (
int i = 0; i < noDataBandList.size(); ++i )
2409 const QDomElement bandElement = noDataBandList.at( i ).toElement();
2411 const int bandNo = bandElement.attribute( QStringLiteral(
"bandNo" ) ).toInt( &ok );
2413 if ( ok && ( bandNo > 0 ) && ( bandNo <= mDataProvider->
bandCount() ) )
2415 mDataProvider->
setUseSourceNoDataValue( bandNo, bandElement.attribute( QStringLiteral(
"useSrcNoData" ) ).toInt() );
2418 const QDomNodeList rangeList = bandElement.elementsByTagName( QStringLiteral(
"noDataRange" ) );
2420 myNoDataRangeList.reserve( rangeList.size() );
2421 for (
int j = 0; j < rangeList.size(); ++j )
2423 const QDomElement rangeElement = rangeList.at( j ).toElement();
2424 const QgsRasterRange myNoDataRange( rangeElement.attribute( QStringLiteral(
"min" ) ).toDouble(),
2425 rangeElement.attribute( QStringLiteral(
"max" ) ).toDouble() );
2426 QgsDebugMsgLevel( QStringLiteral(
"min = %1 %2" ).arg( rangeElement.attribute(
"min" ) ).arg( myNoDataRange.
min() ), 4 );
2427 myNoDataRangeList << myNoDataRange;
2433 readRasterAttributeTableExternalPaths( layer_node, context );
2445 Q_UNUSED( errorMessage )
2448 QDomElement layerElement = layer_node.toElement();
2452 if ( categories.testFlag(
MapTips ) )
2454 QDomElement mapTipElem = document.createElement( QStringLiteral(
"mapTip" ) );
2455 QDomText mapTipText = document.createTextNode(
mapTipTemplate() );
2456 mapTipElem.appendChild( mapTipText );
2457 layer_node.toElement().appendChild( mapTipElem );
2462 QDomElement pipeElement = document.createElement( QStringLiteral(
"pipe" ) );
2464 for (
int i = 0; i < mPipe->size(); i++ )
2467 if ( !interface )
continue;
2468 interface->writeXml( document, pipeElement );
2471 QDomElement elemDataDefinedProperties = document.createElement( QStringLiteral(
"pipe-data-defined-properties" ) );
2473 layer_node.appendChild( elemDataDefinedProperties );
2475 QDomElement resamplingStageElement = document.createElement( QStringLiteral(
"resamplingStage" ) );
2477 resamplingStageElement.appendChild( resamplingStageText );
2478 pipeElement.appendChild( resamplingStageElement );
2480 layer_node.appendChild( pipeElement );
2482 if ( !
isValid() && !mOriginalStyleElement.isNull() )
2484 QDomElement originalStyleElement = document.createElement( QStringLiteral(
"originalStyle" ) );
2485 originalStyleElement.appendChild( mOriginalStyleElement );
2486 layer_node.appendChild( originalStyleElement );
2490 QDomElement blendModeElement = document.createElement( QStringLiteral(
"blendMode" ) );
2492 blendModeElement.appendChild( blendModeText );
2493 layer_node.appendChild( blendModeElement );
2503 return writeSymbology( node, doc, errorMessage, context, categories );
2507 QDomDocument &document,
2512 if ( !mDataProvider )
2517 QDomElement mapLayerNode = layer_node.toElement();
2519 if ( mapLayerNode.isNull() ||
"maplayer" != mapLayerNode.nodeName() )
2529 QDomElement provider = document.createElement( QStringLiteral(
"provider" ) );
2530 const QDomText providerText = document.createTextNode(
mProviderKey );
2531 provider.appendChild( providerText );
2532 layer_node.appendChild( provider );
2535 QDomElement noData = document.createElement( QStringLiteral(
"noData" ) );
2537 for (
int bandNo = 1; bandNo <= mDataProvider->
bandCount(); bandNo++ )
2539 QDomElement noDataRangeList = document.createElement( QStringLiteral(
"noDataList" ) );
2540 noDataRangeList.setAttribute( QStringLiteral(
"bandNo" ), bandNo );
2541 noDataRangeList.setAttribute( QStringLiteral(
"useSrcNoData" ), mDataProvider->
useSourceNoDataValue( bandNo ) );
2543 const auto constUserNoDataValues = mDataProvider->
userNoDataValues( bandNo );
2546 QDomElement noDataRange = document.createElement( QStringLiteral(
"noDataRange" ) );
2550 noDataRangeList.appendChild( noDataRange );
2553 noData.appendChild( noDataRangeList );
2556 if ( noData.hasChildNodes() )
2558 layer_node.appendChild( noData );
2562 writeRasterAttributeTableExternalPaths( layer_node, document, context );
2570 return writeSymbology( layer_node, document, errorMsg, context );
2574static bool _parseGpkgColons(
const QString &src, QString &filename, QString &tablename )
2579 QStringList lst = src.split(
':' );
2580 if ( lst.count() != 3 && lst.count() != 4 )
2583 tablename = lst.last();
2584 if ( lst.count() == 3 )
2589 else if ( lst.count() == 4 && lst[1].count() == 1 && ( lst[2][0] ==
'/' || lst[2][0] ==
'\\' ) )
2592 filename = lst[1] +
":" + lst[2];
2603 bool handled =
false;
2608 if ( src.startsWith( QLatin1String(
"NETCDF:" ) ) )
2612 const QRegularExpression netcdfEncodedRegExp( QRegularExpression::anchoredPattern(
"NETCDF:(.+):([^:]+)" ) );
2613 const QRegularExpressionMatch match = netcdfEncodedRegExp.match( src );
2614 if ( match.hasMatch() )
2616 QString filename = match.captured( 1 );
2617 if ( filename.startsWith(
'"' ) && filename.endsWith(
'"' ) )
2618 filename = filename.mid( 1, filename.length() - 2 );
2623 else if ( src.startsWith( QLatin1String(
"GPKG:" ) ) )
2626 QString filename, tablename;
2627 if ( _parseGpkgColons( src, filename, tablename ) )
2630 src = QStringLiteral(
"GPKG:%1:%2" ).arg( filename, tablename );
2634 else if ( src.startsWith( QLatin1String(
"HDF4_SDS:" ) ) )
2638 const QRegularExpression hdf4EncodedRegExp( QRegularExpression::anchoredPattern(
"HDF4_SDS:([^:]+):(.+):([^:]+)" ) );
2639 const QRegularExpressionMatch match = hdf4EncodedRegExp.match( src );
2640 if ( match.hasMatch() )
2642 QString filename = match.captured( 2 );
2643 if ( filename.startsWith(
'"' ) && filename.endsWith(
'"' ) )
2644 filename = filename.mid( 1, filename.length() - 2 );
2645 src =
"HDF4_SDS:" + match.captured( 1 ) +
":\"" + context.
pathResolver().
writePath( filename ) +
"\":" + match.captured( 3 );
2649 else if ( src.startsWith( QLatin1String(
"HDF5:" ) ) )
2653 const QRegularExpression hdf5EncodedRegExp( QRegularExpression::anchoredPattern(
"HDF5:(.+):([^:]+)" ) );
2654 const QRegularExpressionMatch match = hdf5EncodedRegExp.match( src );
2655 if ( match.hasMatch() )
2657 QString filename = match.captured( 1 );
2658 if ( filename.startsWith(
'"' ) && filename.endsWith(
'"' ) )
2659 filename = filename.mid( 1, filename.length() - 2 );
2664 else if ( src.contains( QRegularExpression(
"^(NITF_IM|RADARSAT_2_CALIB):" ) ) )
2668 const QRegularExpression nitfRadarsatEncodedRegExp( QRegularExpression::anchoredPattern(
"([^:]+):([^:]+):(.+)" ) );
2669 const QRegularExpressionMatch match = nitfRadarsatEncodedRegExp.match( src );
2670 if ( match.hasMatch() )
2672 src = match.captured( 1 ) +
':' + match.captured( 2 ) +
':' + context.
pathResolver().
writePath( match.captured( 3 ) );
2682 const QUrl srcUrl( uri.
param( QStringLiteral(
"url" ) ) );
2683 if ( srcUrl.isLocalFile() )
2688 uri.
setParam( QStringLiteral(
"url" ), QUrl::fromLocalFile( relSrcUrl ).toString() );
2717 if ( provider == QLatin1String(
"wms" ) )
2731 if ( !src.contains( QLatin1String(
"type=" ) ) &&
2732 !src.contains( QLatin1String(
"crs=" ) ) && !src.contains( QLatin1String(
"format=" ) ) )
2734 QgsDebugMsgLevel( QStringLiteral(
"Old WMS URI format detected -> converting to new format" ), 2 );
2736 if ( !src.startsWith( QLatin1String(
"http:" ) ) )
2738 const QStringList parts = src.split(
',' );
2739 QStringListIterator iter( parts );
2740 while ( iter.hasNext() )
2742 const QString item = iter.next();
2743 if ( item.startsWith( QLatin1String(
"username=" ) ) )
2747 else if ( item.startsWith( QLatin1String(
"password=" ) ) )
2751 else if ( item.startsWith( QLatin1String(
"tiled=" ) ) )
2757 QStringList params = item.mid( 6 ).split(
';' );
2759 if ( params.size() == 2 )
2761 uri.
setParam( QStringLiteral(
"maxWidth" ), params.takeFirst() );
2762 uri.
setParam( QStringLiteral(
"maxHeight" ), params.takeFirst() );
2764 else if ( params.size() > 2 )
2768 uri.
setParam( QStringLiteral(
"tileMatrixSet" ), QString() );
2771 else if ( item.startsWith( QLatin1String(
"featureCount=" ) ) )
2773 uri.
setParam( QStringLiteral(
"featureCount" ), item.mid( 13 ) );
2775 else if ( item.startsWith( QLatin1String(
"url=" ) ) )
2777 uri.
setParam( QStringLiteral(
"url" ), item.mid( 4 ) );
2779 else if ( item.startsWith( QLatin1String(
"ignoreUrl=" ) ) )
2781 uri.
setParam( QStringLiteral(
"ignoreUrl" ), item.mid( 10 ).split(
';' ) );
2787 uri.
setParam( QStringLiteral(
"url" ), src );
2798 const QUrl srcUrl( uri.
param( QStringLiteral(
"url" ) ) );
2799 if ( srcUrl.isLocalFile() )
2803 uri.
setParam( QStringLiteral(
"url" ), QUrl::fromLocalFile( absSrcUrl ).toString() );
2810 bool handled =
false;
2812 if ( provider == QLatin1String(
"gdal" ) )
2814 if ( src.startsWith( QLatin1String(
"NETCDF:" ) ) )
2818 const QRegularExpression netcdfDecodedRegExp( QRegularExpression::anchoredPattern(
"NETCDF:(.+):([^:]+)" ) );
2819 const QRegularExpressionMatch match = netcdfDecodedRegExp.match( src );
2820 if ( match.hasMatch() )
2822 QString filename = match.captured( 1 );
2823 if ( filename.startsWith(
'"' ) && filename.endsWith(
'"' ) )
2824 filename = filename.mid( 1, filename.length() - 2 );
2829 else if ( src.startsWith( QLatin1String(
"GPKG:" ) ) )
2832 QString filename, tablename;
2833 if ( _parseGpkgColons( src, filename, tablename ) )
2836 src = QStringLiteral(
"GPKG:%1:%2" ).arg( filename, tablename );
2840 else if ( src.startsWith( QLatin1String(
"HDF4_SDS:" ) ) )
2844 const QRegularExpression hdf4DecodedRegExp( QRegularExpression::anchoredPattern(
"HDF4_SDS:([^:]+):(.+):([^:]+)" ) );
2845 const QRegularExpressionMatch match = hdf4DecodedRegExp.match( src );
2846 if ( match.hasMatch() )
2848 QString filename = match.captured( 2 );
2849 if ( filename.startsWith(
'"' ) && filename.endsWith(
'"' ) )
2850 filename = filename.mid( 1, filename.length() - 2 );
2851 src =
"HDF4_SDS:" + match.captured( 1 ) +
":\"" + context.
pathResolver().
readPath( filename ) +
"\":" + match.captured( 3 );
2855 else if ( src.startsWith( QLatin1String(
"HDF5:" ) ) )
2859 const QRegularExpression hdf5DecodedRegExp( QRegularExpression::anchoredPattern(
"HDF5:(.+):([^:]+)" ) );
2860 const QRegularExpressionMatch match = hdf5DecodedRegExp.match( src );
2861 if ( match.hasMatch() )
2863 QString filename = match.captured( 1 );
2864 if ( filename.startsWith(
'"' ) && filename.endsWith(
'"' ) )
2865 filename = filename.mid( 1, filename.length() - 2 );
2870 else if ( src.contains( QRegularExpression(
"^(NITF_IM|RADARSAT_2_CALIB):" ) ) )
2874 const QRegularExpression niftRadarsatDecodedRegExp( QRegularExpression::anchoredPattern(
"([^:]+):([^:]+):(.+)" ) );
2875 const QRegularExpressionMatch match = niftRadarsatDecodedRegExp.match( src );
2876 if ( match.hasMatch() )
2878 src = match.captured( 1 ) +
':' + match.captured( 2 ) +
':' + context.
pathResolver().
readPath( match.captured( 3 ) );
2884 if ( provider == QLatin1String(
"virtualraster" ) )
2907 if ( !mDataProvider )
return 0;
2908 return mDataProvider->
xSize();
2915 if ( !mDataProvider )
return 0;
2916 return mDataProvider->
ySize();
2923 mPipe->setResamplingStage( stage );
2930 return mPipe->resamplingStage();
2933bool QgsRasterLayer::update()
2942 closeDataProvider();
2945 QgsDataProvider::ReadFlags
flags = QgsDataProvider::ReadFlags();
static QString version()
Version string.
@ IsBasemapLayer
Layer is considered a 'basemap' layer, and certain properties of the layer should be ignored when cal...
RasterResamplingStage
Stage at which raster resampling occurs.
@ Provider
Resampling occurs in Provider.
@ ResampleFilter
Resampling occurs in ResamplingFilter.
@ GrayOrUndefined
Gray or undefined.
@ IsBasemapSource
Associated source should be considered a 'basemap' layer. See Qgis::MapLayerProperty::IsBasemapLayer.
RasterDrawingStyle
Raster drawing styles.
@ SingleBandGray
A single band image drawn as a range of gray colors.
@ MultiBandColor
A layer containing 2 or more bands, mapped to RGB color space. In the case of a multiband with only t...
@ PalettedColor
A "Palette" image drawn using color table.
@ SingleBandPseudoColor
A single band image drawn using a pseudocolor algorithm.
DataType
Raster data types.
@ Float32
Thirty two bit floating point (float)
@ CFloat64
Complex Float64.
@ Int16
Sixteen bit signed integer (qint16)
@ ARGB32_Premultiplied
Color, alpha, red, green, blue, 4 bytes the same as QImage::Format_ARGB32_Premultiplied.
@ UInt16
Sixteen bit unsigned integer (quint16)
@ Byte
Eight bit unsigned integer (quint8)
@ UnknownDataType
Unknown or unspecified type.
@ ARGB32
Color, alpha, red, green, blue, 4 bytes the same as QImage::Format_ARGB32.
@ Int32
Thirty two bit signed integer (qint32)
@ Float64
Sixty four bit floating point (double)
@ CFloat32
Complex Float32.
@ UInt32
Thirty two bit unsigned integer (quint32)
@ AlphaBand
Alpha (0=transparent, 255=opaque)
@ PaletteIndex
Paletted (see associated color table)
@ ContinuousPalette
Continuous palette, QGIS addition, GRASS.
RasterIdentifyFormat
Raster identify formats.
Abstract base class for objects which generate elevation profiles.
static QgsRasterRendererRegistry * rasterRendererRegistry()
Returns the application's raster renderer registry, used for managing raster layer renderers.
static QgsRuntimeProfiler * profiler()
Returns the application runtime profiler.
Bilinear Raster Resampler.
Brightness/contrast and gamma correction filter pipe for rasters.
int contrast() const
Returns current contrast level.
int brightness() const
Returns current brightness level.
void readXml(const QDomElement &filterElem) override
Sets base class members from xml. Usually called from create() methods of subclasses.
A ramp shader will color a raster pixel based on a list of values ranges in a ramp.
bool shade(double value, int *returnRedValue, int *returnGreenValue, int *returnBlueValue, int *returnAlphaValue) const override
Generates and new RGB value based on one input value.
@ Interpolated
Interpolates the color between two class breaks linearly.
@ Discrete
Assigns the color of the higher class for every pixel between two class breaks.
void classifyColorRamp(int classes=0, int band=-1, const QgsRectangle &extent=QgsRectangle(), QgsRasterInterface *input=nullptr)
Classify color ramp shader.
void setColorRampItemList(const QList< QgsColorRampShader::ColorRampItem > &list)
Sets a custom colormap.
void setColorRampType(QgsColorRampShader::Type colorRampType)
Sets the color ramp type.
Manipulates raster or point cloud pixel values so that they enhanceContrast or clip into a specified ...
ContrastEnhancementAlgorithm
This enumerator describes the types of contrast enhancement algorithms that can be used.
@ StretchToMinimumMaximum
Linear histogram.
@ NoEnhancement
Default color scaling algorithm, no scaling is applied.
static QString contrastEnhancementAlgorithmString(ContrastEnhancementAlgorithm algorithm)
Returns a string to serialize ContrastEnhancementAlgorithm.
static ContrastEnhancementAlgorithm contrastEnhancementAlgorithmFromString(const QString &contrastEnhancementString)
Deserialize ContrastEnhancementAlgorithm.
ContrastEnhancementAlgorithm contrastEnhancementAlgorithm() const
This class represents a coordinate reference system (CRS).
@ WKT_PREFERRED
Preferred format, matching the most recent WKT ISO standard. Currently an alias to WKT2_2019,...
Contains information about the context in which a coordinate transform is executed.
Abstract base class for spatial data provider implementations.
virtual void setLayerOrder(const QStringList &layers)
Reorder the list of layer names to be rendered by this provider (in order from bottom to top)
@ FlagLoadDefaultStyle
Reset the layer's style to the default for the datasource.
@ FlagTrustDataSource
Trust datasource config (primary key unicity, geometry type and srid, etc). Improves provider load ti...
@ ForceReadOnly
Open layer in a read-only mode (since QGIS 3.28)
@ SkipGetExtent
Skip the extent from provider.
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
virtual Qgis::DataProviderFlags flags() const
Returns the generic data provider flags.
virtual QgsCoordinateReferenceSystem crs() const =0
Returns the coordinate system for the data source.
virtual QString subsetString() const
Returns the subset definition string (typically sql) currently in use by the layer and used by the pr...
virtual QgsLayerMetadata layerMetadata() const
Returns layer metadata collected from the provider's source.
virtual bool isValid() const =0
Returns true if this is a valid layer.
virtual void setDataSourceUri(const QString &uri)
Set the data source specification.
virtual QgsError error() const
Gets current status error.
virtual bool supportsSubsetString() const
Returns true if the provider supports setting of subset strings.
virtual QString dataSourceUri(bool expandAuthConfig=false) const
Gets the data source specification.
virtual bool setSubsetString(const QString &subset, bool updateFeatureCount=true)
Set the subset string used to create a subset of features in the layer.
virtual void reloadData()
Reloads the data from the source for providers with data caches to synchronize, changes in the data s...
virtual void setSubLayerVisibility(const QString &name, bool vis)
Set the visibility of the given sublayer name.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext)
Sets data coordinate transform context to transformContext.
Class for storing the component parts of a RDBMS data source URI (e.g.
QByteArray encodedUri() const
Returns the complete encoded URI as a byte array.
int removeParam(const QString &key)
Removes a generic parameter by key.
void setEncodedUri(const QByteArray &uri)
Sets the complete encoded uri.
void setUsername(const QString &username)
Sets the username for the URI.
QString param(const QString &key) const
Returns a generic parameter value corresponding to the specified key.
void setParam(const QString &key, const QString &value)
Sets a generic parameter value on the URI.
void setPassword(const QString &password)
Sets the password for the URI.
Color and saturation filter pipe for rasters.
bool invertColors() const
Returns true if the filter inverts colors.
void readXml(const QDomElement &filterElem) override
Sets base class members from xml. Usually called from create() methods of subclasses.
Base class for storage of map layer elevation properties.
static QString typeToString(QgsMapLayerType type)
Converts a map layer type to a string value.
static QgsMapLayerLegend * defaultRasterLegend(QgsRasterLayer *rl)
Create new legend implementation for raster layer.
Base class for utility classes that encapsulate information necessary for rendering of map layers.
void writeXml(QDomNode &layer_node, QDomDocument &document) const
Saves server properties to xml under the layer node.
Base class for storage of map layer temporal properties.
Base class for all map layer types.
void readStyleManager(const QDomNode &layerNode)
Read style manager's configuration (if any). To be called by subclasses.
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.
virtual QgsRectangle extent() const
Returns the extent of the layer.
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.
void setBlendMode(QPainter::CompositionMode blendMode)
Set the blending mode used for rendering a layer.
void configChanged()
Emitted whenever the configuration is changed.
QgsMapLayer::LayerFlags flags() const
Returns the flags for this layer.
QgsCoordinateReferenceSystem crs
QgsMapLayerServerProperties * serverProperties()
Returns QGIS Server Properties for the map layer.
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...
QString mLayerName
Name of the layer - used for display.
QString crsHtmlMetadata() const
Returns a HTML fragment containing the layer's CRS metadata, for use in the htmlMetadata() method.
QgsLayerMetadata metadata
QString abstract() const
Returns the abstract of the layer used by QGIS Server in GetCapabilities request.
QPainter::CompositionMode blendMode() const
Returns the current blending mode for a layer.
void statusChanged(const QString &status)
Emit a signal with status (e.g. to be caught by QgisApp and display a msg on status bar)
void readCustomProperties(const QDomNode &layerNode, const QString &keyStartsWith=QString())
Read custom properties from project file.
virtual void setMetadata(const QgsLayerMetadata &metadata)
Sets the layer's metadata store.
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...
void rendererChanged()
Signal emitted when renderer is changed.
QString title() const
Returns the title of the layer used by QGIS Server in GetCapabilities request.
virtual QgsError error() const
Gets current status error.
bool hasScaleBasedVisibility() const
Returns whether scale based visibility is enabled for the layer.
void opacityChanged(double opacity)
Emitted when the layer's opacity is changed, where opacity is a value between 0 (transparent) and 1 (...
void emitStyleChanged()
Triggers an emission of the styleChanged() signal.
void dataChanged()
Data of layer changed.
void willBeDeleted()
Emitted in the destructor when the layer is about to be deleted, but it is still in a perfectly valid...
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.
void appendError(const QgsErrorMessage &error)
Add error message.
QString mDataSource
Data source description string, varies by layer type.
@ FlagReadExtentFromXml
Read extent from xml and skip get extent from provider.
@ FlagTrustLayerMetadata
Trust layer metadata. Improves layer load time by skipping expensive checks like primary key unicity,...
@ FlagForceReadOnly
Force open as read only.
@ 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.
void setDataSource(const QString &dataSource, const QString &baseName, const QString &provider, bool loadDefaultStyleFlag=false)
Updates the data source of the layer.
double minimumScale() const
Returns the minimum map scale (i.e.
void repaintRequested(bool deferredUpdate=false)
By emitting this signal the layer tells that either appearance or content have been changed and any v...
void setMapTipTemplate(const QString &mapTipTemplate)
The mapTip is a pretty, html representation for feature information.
void setProviderType(const QString &providerType)
Sets the providerType (provider key)
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.
bool mShouldValidateCrs
true if the layer's CRS should be validated and invalid CRSes are not permitted.
void setCrs(const QgsCoordinateReferenceSystem &srs, bool emitSignal=true)
Sets layer's spatial reference system.
Perform transforms between map coordinates and device coordinates.
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).
Renderer for multiband images with the color components.
const QgsContrastEnhancement * greenContrastEnhancement() const
Returns the contrast enhancement to use for the green channel.
const QgsContrastEnhancement * blueContrastEnhancement() const
Returns the contrast enhancement to use for the blue channel.
void setGreenContrastEnhancement(QgsContrastEnhancement *ce)
Sets the contrast enhancement to use for the green channel.
void setBlueContrastEnhancement(QgsContrastEnhancement *ce)
Sets the contrast enhancement to use for the blue channel.
void setRedContrastEnhancement(QgsContrastEnhancement *ce)
Sets the contrast enhancement to use for the red channel.
const QgsContrastEnhancement * redContrastEnhancement() const
Returns the contrast enhancement to use for the red channel.
static QgsPainting::BlendMode getBlendModeEnum(QPainter::CompositionMode blendMode)
Returns a BlendMode corresponding to a QPainter::CompositionMode.
static QPainter::CompositionMode getCompositionMode(QgsPainting::BlendMode blendMode)
Returns a QPainter::CompositionMode corresponding to a BlendMode.
BlendMode
Blending modes enum defining the available composition modes that can be used when rendering a layer.
QString writePath(const QString &filename) const
Prepare a filename to save it to the project file.
QString readPath(const QString &filename) const
Turn filename read from the project file to an absolute path.
A class to represent a 2D point.
Encapsulates properties and constraints relating to fetching elevation profiles from different source...
static QgsProviderRegistry * instance(const QString &pluginPath=QString())
Means of accessing canonical single instance.
The QgsRasterAttributeTable class represents a Raster Attribute Table (RAT).
QString filePath() const
Returns the (possibly empty) path of the file-based RAT, the path is set when a RAT is read or writte...
The RasterBandStats struct is a container for statistics about a single raster band.
int statsGathered
Collected statistics.
double mean
The mean cell value for the band. NO_DATA values are excluded.
double stdDev
The standard deviation of the cell values.
double minimumValue
The minimum cell value in the raster band.
double maximumValue
The maximum cell value in the raster band.
static int typeSize(Qgis::DataType dataType) SIP_HOLDGIL
Returns the size in bytes for the specified dataType.
static QString printValue(double value)
Print double value with all necessary significant digits.
Base class for raster data providers.
static QString encodeVirtualRasterProviderUri(const VirtualRasterParameters &parts)
Encodes the URI starting from the struct .
virtual bool useSourceNoDataValue(int bandNo) const
Returns the source nodata value usage.
static QgsRasterDataProvider::VirtualRasterParameters decodeVirtualRasterProviderUri(const QString &uri, bool *ok=nullptr)
Decodes the URI returning a struct with all the parameters for QgsVirtualRasterProvider class.
Qgis::DataType sourceDataType(int bandNo) const override=0
Returns source data type for the band specified by number, source data type may be shorter than dataT...
virtual void setUseSourceNoDataValue(int bandNo, bool use)
Sets the source nodata value usage.
QgsRasterAttributeTable * attributeTable(int bandNumber) const
Returns the (possibly NULL) attribute table for the specified bandNumber.
void setAttributeTable(int bandNumber, QgsRasterAttributeTable *attributeTable)
Set the attribute table to attributeTable for the specified bandNumber, if the attributeTable is NULL...
void readXml(const QDomElement &filterElem) override
Sets base class members from xml. Usually called from create() methods of subclasses.
virtual QgsRasterDataProvider::ProviderCapabilities providerCapabilities() const
Returns flags containing the supported capabilities of the data provider.
virtual bool readNativeAttributeTable(QString *errorMessage=nullptr)
Reads the native attribute table, optionally reporting any error in errorMessage, returns true on suc...
QDateTime timestamp() const override
Time stamp of data source in the moment when data/metadata were loaded by provider.
QgsRectangle extent() const override=0
Returns the extent of the layer.
virtual bool ignoreExtents() const
Returns true if the extents reported by the data provider are not reliable and it's possible that the...
virtual bool setMaxOversampling(double factor)
Sets maximum oversampling factor for zoomed-out operations.
Qgis::DataType dataType(int bandNo) const override=0
Returns data type for the band specified by number.
QStringList subLayers() const override
Returns the sublayers of this layer - useful for providers that manage their own layers,...
@ ReadLayerMetadata
Provider can read layer metadata from data store. Since QGIS 3.0. See QgsDataProvider::layerMetadata(...
@ ProviderHintBenefitsFromResampling
Provider benefits from resampling and should apply user default resampling settings (since QGIS 3....
@ ProviderHintCanPerformProviderResampling
Provider can perform resampling (to be opposed to post rendering resampling) (since QGIS 3....
virtual Qgis::RasterColorInterpretation colorInterpretation(int bandNo) const
Returns data type for the band specified by number.
QDateTime dataTimestamp() const override
Current time stamp of data source.
virtual QString htmlMetadata()=0
Returns metadata in a format suitable for feeding directly into a subset of the GUI raster properties...
virtual QList< QgsColorRampShader::ColorRampItem > colorTable(int bandNo) const
void statusChanged(const QString &) const
Emit a message to be displayed on status bar, usually used by network providers (WMS,...
virtual QgsRasterRangeList userNoDataValues(int bandNo) const
Returns a list of user no data value ranges.
virtual bool setZoomedInResamplingMethod(ResamplingMethod method)
Set resampling method to apply for zoomed-in operations.
static QString identifyFormatName(Qgis::RasterIdentifyFormat format)
Converts a raster identify format to a string name.
QgsRasterDataProviderTemporalCapabilities * temporalCapabilities() override
Returns the provider's temporal capabilities.
@ Bilinear
Bilinear (2x2 kernel) resampling.
@ Cubic
Cubic Convolution Approximation (4x4 kernel) resampling.
virtual void setUserNoDataValue(int bandNo, const QgsRasterRangeList &noData)
virtual bool setZoomedOutResamplingMethod(ResamplingMethod method)
Set resampling method to apply for zoomed-out operations.
The drawing pipe for raster layers.
void draw(QPainter *p, QgsRasterViewPort *viewPort, const QgsMapToPixel *qgsMapToPixel, QgsRasterBlockFeedback *feedback=nullptr)
Draws raster data.
Base class for processing filters like renderers, reprojector, resampler etc.
virtual void cumulativeCut(int bandNo, double lowerCount, double upperCount, double &lowerValue, double &upperValue, const QgsRectangle &extent=QgsRectangle(), int sampleSize=0)
Find values for cumulative pixel count cut.
@ IdentifyValue
Numerical values.
@ IdentifyFeature
WMS GML -> feature.
@ Size
Original data source size (and thus resolution) is known, it is not always available,...
virtual int xSize() const
Gets raster size.
virtual QString generateBandName(int bandNumber) const
helper function to create zero padded band names
virtual int bandCount() const =0
Gets number of bands.
virtual QgsRasterBandStats bandStatistics(int bandNo, int stats=QgsRasterBandStats::All, const QgsRectangle &extent=QgsRectangle(), int sampleSize=0, QgsRasterBlockFeedback *feedback=nullptr)
Returns the band statistics.
virtual bool hasStatistics(int bandNo, int stats=QgsRasterBandStats::All, const QgsRectangle &extent=QgsRectangle(), int sampleSize=0)
Returns true if histogram is available (cached, already calculated).
virtual int capabilities() const
Returns a bitmask containing the supported capabilities.
virtual int ySize() const
virtual QgsRasterInterface * input() const
Current input.
Iterator for sequentially processing raster cells.
Raster layer specific subclass of QgsMapLayerElevationProperties.
bool isEnabled() const
Returns true if the elevation properties are enabled, i.e.
QgsRasterLayerElevationProperties * clone() const override
Creates a clone of the properties.
Implementation of QgsAbstractProfileGenerator for raster layers.
Implementation of threaded rendering for raster layers.
Implementation of map layer temporal properties for raster layers.
void setDefaultsFromDataProviderTemporalCapabilities(const QgsDataProviderTemporalCapabilities *capabilities) override
Sets the layers temporal settings to appropriate defaults based on a provider's temporal capabilities...
Represents a raster layer.
QString htmlMetadata() const override
Obtain a formatted HTML string containing assorted metadata for this layer.
bool defaultContrastEnhancementSettings(QgsContrastEnhancement::ContrastEnhancementAlgorithm &myAlgorithm, QgsRasterMinMaxOrigin::Limits &myLimits) const
Returns default contrast enhancement settings for that type of raster.
bool canCreateRasterAttributeTable()
Returns true if the raster renderer is suitable for creation of a raster attribute table.
void subsetStringChanged()
Emitted when the layer's subset string has changed.
Qgis::MapLayerProperties properties() const override
Returns the map layer properties of this 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...
Q_DECL_DEPRECATED QgsLegendColorList legendSymbologyItems() const
Returns a list with classification items (Text and color).
QgsMapLayerRenderer * createMapRenderer(QgsRenderContext &rendererContext) override
Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context.
void showStatusMessage(const QString &message)
QgsRasterAttributeTable * attributeTable(int bandNumber) const
Returns the (possibly NULL) raster attribute table for the given band bandNumber.
virtual bool setSubsetString(const QString &subset)
Sets the string (typically sql) used to define a subset of the layer.
QgsRasterResampleFilter * resampleFilter() const
Returns the raster's resample filter.
bool writeSymbology(QDomNode &, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const override
QgsRasterLayer * clone() const override
Returns a new instance equivalent to this one.
void setResamplingStage(Qgis::RasterResamplingStage stage)
Select which stage of the pipe should apply resampling.
Qgis::RasterResamplingStage resamplingStage() const
Returns which stage of the pipe should apply resampling.
void setContrastEnhancement(QgsContrastEnhancement::ContrastEnhancementAlgorithm algorithm, QgsRasterMinMaxOrigin::Limits limits=QgsRasterMinMaxOrigin::MinMax, const QgsRectangle &extent=QgsRectangle(), int sampleSize=QgsRasterLayer::SAMPLE_SIZE, bool generateLookupTableFlag=true)
Set contrast enhancement algorithm.
int attributeTableCount() const
Returns the number of attribute tables for the raster by counting the number of bands that have an as...
void refreshContrastEnhancement(const QgsRectangle &extent)
Refresh contrast enhancement with new extent.
int height() const
Returns the height of the (unclipped) raster.
void setOpacity(double opacity) FINAL
Sets the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1....
Q_DECL_DEPRECATED void setDataProvider(const QString &provider)
Set the data provider.
static const QgsContrastEnhancement::ContrastEnhancementAlgorithm MULTIPLE_BAND_SINGLE_BYTE_ENHANCEMENT_ALGORITHM
Default enhancement algorithm for multiple band raster of type Byte.
int bandCount() const
Returns the number of bands in this layer.
void refreshRendererIfNeeded(QgsRasterRenderer *rasterRenderer, const QgsRectangle &extent)
Refresh renderer with new extent, if needed.
QgsMapLayerTemporalProperties * temporalProperties() override
Returns the layer's temporal properties.
QgsRasterPipe * pipe()
Returns the raster pipe.
bool ignoreExtents() const
If the ignoreExtent flag is set, the layer will also render outside the bounding box reported by the ...
QString decodedSource(const QString &source, const QString &provider, const QgsReadWriteContext &context) const override
Called by readLayerXML(), used by derived classes to decode provider's specific data source from proj...
void setSubLayerVisibility(const QString &name, bool vis) override
Set the visibility of the given sublayer name.
virtual QString subsetString() const
Returns the string (typically sql) used to define a subset of the layer.
static const QgsRasterMinMaxOrigin::Limits SINGLE_BAND_MIN_MAX_LIMITS
Default enhancement limits for single band raster.
QgsAbstractProfileGenerator * createProfileGenerator(const QgsProfileRequest &request) override
Given a profile request, returns a new profile generator ready for generating elevation profiles.
QgsBrightnessContrastFilter * brightnessFilter() const
Returns the raster's brightness/contrast filter.
static const QgsRasterMinMaxOrigin::Limits MULTIPLE_BAND_MULTI_BYTE_MIN_MAX_LIMITS
Default enhancement limits for multiple band raster of type different from Byte.
bool writeXml(QDomNode &layer_node, QDomDocument &doc, const QgsReadWriteContext &context) const override
Called by writeLayerXML(), used by children to write state specific to them to project files.
bool writeStyle(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const override
double opacity() const FINAL
Returns the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1....
double rasterUnitsPerPixelX() const
Returns the number of raster units per each raster pixel in X axis.
void reload() override
Synchronises with changes in the datasource.
bool accept(QgsStyleEntityVisitorInterface *visitor) const override
Accepts the specified symbology visitor, causing it to visit all symbols associated with the layer.
QImage previewAsImage(QSize size, const QColor &bgColor=Qt::white, QImage::Format format=QImage::Format_ARGB32_Premultiplied)
Draws a preview of the rasterlayer into a QImage.
QStringList subLayers() const override
Returns the sublayers of this layer.
void setDefaultContrastEnhancement()
Sets the default contrast enhancement.
QgsRasterRenderer * renderer() const
Returns the raster's renderer.
static const double SAMPLE_SIZE
Default sample size (number of pixels) for estimated statistics/histogram calculation.
static const QgsRasterMinMaxOrigin::Limits MULTIPLE_BAND_SINGLE_BYTE_MIN_MAX_LIMITS
Default enhancement limits for multiple band raster of type Byte.
static const QgsContrastEnhancement::ContrastEnhancementAlgorithm MULTIPLE_BAND_MULTI_BYTE_ENHANCEMENT_ALGORITHM
Default enhancement algorithm for multiple band raster of type different from Byte.
bool readXml(const QDomNode &layer_node, QgsReadWriteContext &context) override
Called by readLayerXML(), used by children to read state specific to them from project files.
QString bandName(int bandNoInt) const
Returns the name of a band given its number.
QgsRasterDataProvider * dataProvider() override
Returns the source data provider.
static bool isValidRasterFileName(const QString &fileNameQString, QString &retError)
This helper checks to see whether the file name appears to be a valid raster file name.
bool isSpatial() const override
Returns true if the layer is considered a spatial layer, ie it has some form of geometry associated w...
double rasterUnitsPerPixelY() const
Returns the number of raster units per each raster pixel in Y axis.
QString providerType() const
[ data provider interface ] Which provider is being used for this Raster Layer?
int width() const
Returns the width of the (unclipped) raster.
QgsMapLayerElevationProperties * elevationProperties() override
Returns the layer's elevation properties.
bool readSymbology(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) override
void draw(QPainter *theQPainter, QgsRasterViewPort *myRasterViewPort, const QgsMapToPixel *qgsMapToPixel=nullptr)
This is an overloaded version of the draw() function that is called by both draw() and thumbnailAsPix...
bool writeSld(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props=QVariantMap()) const
Writes the symbology of the layer into the document provided in SLD 1.0.0 format.
static QDateTime lastModified(const QString &name)
Returns time stamp for given file name.
static const QgsContrastEnhancement::ContrastEnhancementAlgorithm SINGLE_BAND_ENHANCEMENT_ALGORITHM
Default enhancement algorithm for single band raster.
~QgsRasterLayer() override
QDateTime timestamp() const override
Time stamp of data source in the moment when data/metadata were loaded by provider.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext) override
Sets the coordinate transform context to transformContext.
void setRenderer(QgsRasterRenderer *renderer)
Sets the raster's renderer.
QgsRasterLayer()
Constructor. Provider is not set.
void setLayerOrder(const QStringList &layers) override
Reorders the previously selected sublayers of this layer from bottom to top.
QgsHueSaturationFilter * hueSaturationFilter() const
Returns the raster's hue/saturation filter.
bool readStyle(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) override
QPixmap paletteAsPixmap(int bandNumber=1)
Returns a 100x100 pixmap of the color palette.
This class describes the origin of min/max values.
void setExtent(QgsRasterMinMaxOrigin::Extent extent)
Sets the extent.
static QString limitsString(Limits limits)
Returns a string to serialize Limits.
double cumulativeCutLower() const
Returns the lower bound of cumulative cut method (between 0 and 1).
QgsRasterMinMaxOrigin::Limits limits() const
Returns the raster limits.
double stdDevFactor() const
Returns the factor f so that the min/max range is [ mean - f * stddev , mean + f * stddev ].
void setLimits(QgsRasterMinMaxOrigin::Limits limits)
Sets the limits.
@ UpdatedCanvas
Constantly updated extent of the canvas is used to compute statistics.
@ CurrentCanvas
Current extent of the canvas (at the time of computation) is used to compute statistics.
@ WholeRaster
Whole raster is used to compute statistics.
double cumulativeCutUpper() const
Returns the upper bound of cumulative cut method (between 0 and 1).
Limits
This enumerator describes the limits used to compute min/max values.
@ StdDev
Range is [ mean - stdDevFactor() * stddev, mean + stdDevFactor() * stddev ].
@ MinMax
Real min-max values.
@ CumulativeCut
Range is [ min + cumulativeCutLower() * (max - min), min + cumulativeCutUpper() * (max - min) ].
static Limits limitsFromString(const QString &limits)
Deserialize Limits.
QgsRasterMinMaxOrigin::Extent extent() const
Returns the raster extent.
Contains a pipeline of raster interfaces for sequential raster processing.
bool set(QgsRasterInterface *interface)
Inserts a new known interface in default place or replace interface of the same role if it already ex...
static QgsPropertiesDefinition propertyDefinitions()
Returns the definitions for data defined properties available for use in raster pipes.
void setDataDefinedProperties(const QgsPropertyCollection &collection)
Sets the pipe's property collection, used for data defined overrides.
QgsRasterProjector implements approximate projection support for it calculates grid of points in sour...
Q_DECL_DEPRECATED void setCrs(const QgsCoordinateReferenceSystem &srcCRS, const QgsCoordinateReferenceSystem &destCRS, int srcDatumTransform=-1, int destDatumTransform=-1)
Sets the source and destination CRS.
Raster values range container.
double min() const
Returns the minimum value for the range.
Raster renderer pipe that applies colors to a raster.
virtual QString type() const
Returns a unique string representation of the renderer type.
virtual bool canCreateRasterAttributeTable() const
Returns true if the renderer is suitable for attribute table creation.
void setMinMaxOrigin(const QgsRasterMinMaxOrigin &origin)
Sets origin of min/max values.
const QgsRasterMinMaxOrigin & minMaxOrigin() const
Returns const reference to origin of min/max values.
virtual QList< QPair< QString, QColor > > legendSymbologyItems() const
Returns symbology items if provided by renderer.
Resample filter pipe for rasters.
void setZoomedOutResampler(QgsRasterResampler *r)
Sets resampler for zoomed out scales. Takes ownership of the object.
void setMaxOversampling(double os)
void readXml(const QDomElement &filterElem) override
Sets base class members from xml. Usually called from create() methods of subclasses.
void setZoomedInResampler(QgsRasterResampler *r)
Sets resampler for zoomed in scales. Takes ownership of the object.
Interface for all raster shaders.
void setRasterShaderFunction(QgsRasterShaderFunction *function)
A public method that allows the user to set their own shader function.
QgsRasterShaderFunction * rasterShaderFunction()
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.
const QgsPathResolver & pathResolver() const
Returns path resolver for conversion between relative and absolute paths.
A rectangle specified with double values.
QString toString(int precision=16) const
Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the sp...
double height() const SIP_HOLDGIL
Returns the height of the rectangle.
double width() const SIP_HOLDGIL
Returns the width of the rectangle.
bool isEmpty() const
Returns true if the rectangle is empty.
Contains information about the context of a rendering operation.
This class is a composition of two QSettings instances:
QVariant value(const QString &key, const QVariant &defaultValue=QVariant(), Section section=NoSection) const
Returns the value for setting key.
Raster renderer pipe for single band gray.
const QgsContrastEnhancement * contrastEnhancement() const
void setContrastEnhancement(QgsContrastEnhancement *ce)
Takes ownership.
Raster renderer pipe for single band pseudocolor.
void setClassificationMin(double min)
int band() const
Returns the band used by the renderer.
void setShader(QgsRasterShader *shader)
Takes ownership of the shader.
void setClassificationMax(double max)
QgsRasterShader * shader()
Returns the raster shader.
An interface for classes which can visit style entity (e.g.
static void mergeScaleDependencies(double mScaleMinDenom, double mScaleMaxDenom, QVariantMap &props)
Merges the local scale limits, if any, with the ones already in the map, if any.
static QgsRectangle readRectangle(const QDomElement &element)
QgsMapLayerType
Types of layers that can be added to a map.
@ RasterLayer
Raster layer.
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 allowing algorithms to be written in pure substantial changes are required in order to port existing x Processing algorithms for QGIS x The most significant changes are outlined not GeoAlgorithm For algorithms which operate on features one by consider subclassing the QgsProcessingFeatureBasedAlgorithm class This class allows much of the boilerplate code for looping over features from a vector layer to be bypassed and instead requires implementation of a processFeature method Ensure that your algorithm(or algorithm 's parent class) implements the new pure virtual createInstance(self) call
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
QString qgsEnumValueToKey(const T &value, bool *returnOk=nullptr)
Returns the value for the given key of an enum.
bool qgsDoubleNear(double a, double b, double epsilon=4 *std::numeric_limits< double >::epsilon())
Compare two doubles (but allow some difference)
QgsSignalBlocker< Object > whileBlocking(Object *object)
Temporarily blocks signals from a QObject while calling a single method from the object.
#define QgsDebugMsgLevel(str, level)
QgsDataProvider * classFactoryFunction_t(const QString *, const QgsDataProvider::ProviderOptions &options)
QList< QPair< QString, QColor > > QgsLegendColorList
QList< QgsRasterRange > QgsRasterRangeList
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS
Setting options for creating vector data providers.
Struct that stores the information about the parameters that should be given to the QgsVirtualRasterP...
QList< QgsRasterDataProvider::VirtualRasterInputLayers > rInputLayers
Setting options for loading raster layers.
bool skipCrsValidation
Controls whether the layer is allowed to have an invalid/unknown CRS.
bool loadDefaultStyle
Sets to true if the default layer style should be loaded.
QgsCoordinateTransformContext transformContext
Coordinate transform context.
Registry for raster renderer entries.
QgsRasterRendererCreateFunc rendererCreateFunction
This class provides details of the viewable area that a raster will be rendered into.
qgssize mHeight
Height, number of rows to be rendered.
QgsCoordinateReferenceSystem mDestCRS
Target coordinate system.
QgsPointXY mBottomRightPoint
Coordinate (in output device coordinate system) of bottom right corner of the part of the raster that...
QgsPointXY mTopLeftPoint
Coordinate (in output device coordinate system) of top left corner of the part of the raster that is ...
QgsCoordinateReferenceSystem mSrcCRS
Source coordinate system.
QgsRectangle mDrawnExtent
Intersection of current map extent and layer extent.
QgsCoordinateTransformContext mTransformContext
Coordinate transform context.
qgssize mWidth
Width, number of columns to be rendered.