50 const QString &baseName,
51 const QString &providerKey,
61 QgsDataProvider::ReadFlags
flags = QgsDataProvider::ReadFlags();
74 QgsMeshLayer::setDataSourcePrivate( meshLayerPath, baseName, providerKey, providerOptions,
flags );
87void QgsMeshLayer::createSimplifiedMeshes()
91 if ( mSimplificationSettings.
isEnabled() && !hasSimplifiedMeshes() )
93 const double reductionFactor = mSimplificationSettings.
reductionFactor();
95 QVector<QgsTriangularMesh *> simplifyMeshes =
96 mTriangularMeshes[0]->simplifyMesh( reductionFactor );
98 for (
int i = 0; i < simplifyMeshes.count() ; ++i )
100 mTriangularMeshes.emplace_back( simplifyMeshes[i] );
105bool QgsMeshLayer::hasSimplifiedMeshes()
const
110 return ( mTriangularMeshes.size() > 1 );
115 delete mDataProvider;
122 return mDataProvider;
129 return mDataProvider;
144 layer->mElevationProperties = mElevationProperties->
clone();
145 layer->mElevationProperties->setParent( layer );
155 return mMeshEditor->
extent();
158 return mDataProvider->
extent();
178 if ( !mDataProvider )
195 for (
const int index : groupsList )
196 assignDefaultStyleToDatasetGroup( index );
200 if ( !groupsList.isEmpty() )
206 if ( meta.
maximum() == std::numeric_limits<double>::quiet_NaN() &&
207 meta.
minimum() == std::numeric_limits<double>::quiet_NaN() )
218 for (
const int i : groupsList )
220 assignDefaultStyleToDatasetGroup( i );
239 applyClassificationOnScalarSettings( meta, scalarSettings );
244 if ( !groupsList.isEmpty() )
258 if ( mDatasetGroupStore->addPersistentDatasets( path ) )
260 mExtraDatasetUri.append( path );
262 if ( !isTemporalBefore &&
dataProvider()->temporalCapabilities()->hasTemporalCapabilities() )
269 QDateTime referenceTime = defaultReferenceTime;
270 if ( !defaultReferenceTime.isValid() )
271 referenceTime = QDateTime( QDate::currentDate(), QTime( 0, 0, 0 ), Qt::UTC );
288 if ( mDatasetGroupStore->addDatasetGroup( datasetGroup ) )
300 return mDatasetGroupStore->saveDatasetGroup( path, datasetGroupIndex, driver );
307 return mNativeMesh.get();
314 return mNativeMesh.get();
321 for (
const std::unique_ptr<QgsTriangularMesh> &lod : mTriangularMeshes )
323 if ( lod && lod->averageTriangleSize() > minimumTriangleSize )
327 if ( !mTriangularMeshes.empty() )
328 return mTriangularMeshes.back().get();
337 return mTriangularMeshes.size();
344 if ( mTriangularMeshes.empty() )
347 return mTriangularMeshes.front().get();
349 if ( lodIndex >=
int( mTriangularMeshes.size() ) )
350 return mTriangularMeshes.back().get();
352 return mTriangularMeshes.at( lodIndex ).get();
367 if ( mTriangularMeshes.empty() )
370 mTriangularMeshes.emplace_back( baseMesh );
373 if ( mTriangularMeshes[0].get()->update( mNativeMesh.get(), transform ) )
374 mTriangularMeshes.resize( 1 );
376 createSimplifiedMeshes();
383 return mRendererCache.get();
390 return mRendererSettings;
399 mRendererSettings = settings;
415 return mTimeSettings;
422 mTimeSettings = settings;
431 return QgsMeshLayerUtils::formatTime( hours, mTemporalProperties->
referenceTime(), mTimeSettings );
433 return QgsMeshLayerUtils::formatTime( hours, QDateTime(), mTimeSettings );
440 return mDatasetGroupStore->datasetGroupCount();
447 return mDatasetGroupStore->extraDatasetGroupCount();
454 return mDatasetGroupStore->datasetGroupIndexes();
461 return mDatasetGroupStore->enabledDatasetGroupIndexes();
468 return mDatasetGroupStore->datasetGroupMetadata( index );
475 return mDatasetGroupStore->datasetCount( index.
group() );
482 return mDatasetGroupStore->datasetMetadata( index );
489 return mDatasetGroupStore->datasetValue( index, valueIndex );
496 return mDatasetGroupStore->datasetValues( index, valueIndex, count );
503 return mDatasetGroupStore->dataset3dValues( index, faceIndex, count );
510 return mDatasetGroupStore->areFacesActive( index, faceIndex, count );
517 return mDatasetGroupStore->isFaceActive( index, faceIndex );
529 if (
contains( QgsMesh::ElementType::Edge ) )
531 const QgsRectangle searchRectangle( point.
x() - searchRadius, point.
y() - searchRadius, point.
x() + searchRadius, point.
y() + searchRadius );
535 if ( faceIndex >= 0 )
552 const int v1 = face[0], v2 = face[1], v3 = face[2];
557 const double x = QgsMeshLayerUtils::interpolateFromVerticesData( p1, p2, p3, val1.
x(), val2.
x(), val3.
x(), point );
558 double y = std::numeric_limits<double>::quiet_NaN();
561 y = QgsMeshLayerUtils::interpolateFromVerticesData( p1, p2, p3, val1.
y(), val2.
y(), val3.
y(), point );
576 value = block2d.
value( 0 );
606 if ( faceIndex >= 0 )
622 const int selectedIndex = closestEdge( point, searchRadius, projectedPoint );
624 if ( selectedIndex >= 0 )
638 const int v1 = edge.first, v2 = edge.second;
642 const double edgeLength = p1.
distance( p2 );
643 const double dist1 = p1.
distance( projectedPoint.
x(), projectedPoint.
y() );
644 value = QgsMeshLayerUtils::interpolateFromVerticesData( dist1 / edgeLength, val1, val2 );
668 if ( ! mTemporalProperties->
isActive() )
671 const QDateTime layerReferenceTime = mTemporalProperties->
referenceTime();
672 QDateTime utcTime = timeRange.begin();
673 if ( utcTime.timeSpec() != Qt::UTC )
674 utcTime.setTimeSpec( Qt::UTC );
675 const qint64 startTime = layerReferenceTime.msecsTo( utcTime );
677 return mDatasetGroupStore->datasetIndexAtTime( startTime, datasetGroupIndex, mTemporalProperties->
matchingMethod() );
684 return mDatasetGroupStore->datasetIndexAtTime( relativeTime.
seconds() * 1000, datasetGroupIndex, mTemporalProperties->
matchingMethod() );
691 qint64 usedRelativeTime1 = startRelativeTime.
seconds() * 1000;
692 qint64 usedRelativeTime2 = endRelativeTime.
seconds() * 1000;
704 return mDatasetGroupStore->datasetIndexInTimeInterval( usedRelativeTime1, usedRelativeTime2, datasetGroupIndex );
711 if ( meta.
extraOptions().contains( QStringLiteral(
"classification" ) ) )
715 const QStringList classes = meta.
extraOptions()[QStringLiteral(
"classification" )].split( QStringLiteral(
";;" ) );
718 if ( meta.
extraOptions().contains( QStringLiteral(
"units" ) ) )
719 units = meta.
extraOptions()[ QStringLiteral(
"units" )];
721 QVector<QVector<double>> bounds;
722 for (
const QString &classe : classes )
724 const QStringList boundsStr = classe.split(
',' );
725 QVector<double> bound;
726 for (
const QString &boundStr : boundsStr )
727 bound.append( boundStr.toDouble() );
728 bounds.append( bound );
731 if ( ( bounds.count() == 1 && bounds.first().count() > 2 ) ||
732 ( bounds.count() > 1 ) )
734 const QVector<double> firstClass = bounds.first();
735 const QVector<double> lastClass = bounds.last();
736 const double minValue = firstClass.count() > 1 ? ( firstClass.first() + firstClass.last() ) / 2 : firstClass.first();
737 const double maxValue = lastClass.count() > 1 ? ( lastClass.first() + lastClass.last() ) / 2 : lastClass.first();
738 const double diff = maxValue - minValue;
739 QList<QgsColorRampShader::ColorRampItem> colorRampItemlist;
740 for (
int i = 0; i < bounds.count(); ++i )
742 const QVector<double> &boundClass = bounds.at( i );
745 if ( !boundClass.isEmpty() )
747 const double scalarValue = ( boundClass.first() + boundClass.last() ) / 2;
748 item.
color = colorRamp->
color( ( scalarValue - minValue ) / diff );
749 if ( i != 0 && i < bounds.count() - 1 )
751 item.
label = QString( (
"%1 - %2 %3" ) ).
752 arg( QString::number( boundClass.first() ) ).
753 arg( QString::number( boundClass.last() ) ).
757 colorRampItemlist.append( item );
760 if ( firstClass.count() == 1 )
761 colorRampItemlist.first().label = QObject::tr(
"below %1 %2" ).
762 arg( QString::number( firstClass.first() ) ).
766 colorRampItemlist.first().label = QString( (
"%1 - %2 %3" ) ).
767 arg( QString::number( firstClass.first() ) ).
768 arg( QString::number( firstClass.last() ) ).
772 if ( lastClass.count() == 1 )
773 colorRampItemlist.last().label = QObject::tr(
"above %1 %2" ).
774 arg( QString::number( lastClass.first() ) ).
778 colorRampItemlist.last().label = QString( (
"%1 - %2 %3" ) ).
779 arg( QString::number( lastClass.first() ) ).
780 arg( QString::number( lastClass.last() ) ).
801 if ( mTemporalProperties->
isActive() )
811 if ( mTemporalProperties->
isActive() )
817void QgsMeshLayer::fillNativeMesh()
821 Q_ASSERT( !mNativeMesh );
823 mNativeMesh.reset(
new QgsMesh() );
831void QgsMeshLayer::onDatasetGroupsAdded(
const QList<int> &datasetGroupIndexes )
836 for (
int datasetGroupIndex : datasetGroupIndexes )
838 if ( !mRendererSettings.
hasSettings( datasetGroupIndex ) )
839 assignDefaultStyleToDatasetGroup( datasetGroupIndex );
846void QgsMeshLayer::onMeshEdited()
850 mRendererCache.reset(
new QgsMeshLayerRendererCache() );
860 return mDatasetGroupStore->datasetGroupTreeItem();
867 mDatasetGroupStore->setDatasetGroupTreeItem( rootItem );
868 updateActiveDatasetGroups();
871int QgsMeshLayer::closestEdge(
const QgsPointXY &point,
double searchRadius,
QgsPointXY &projectedPoint )
const
875 const QgsRectangle searchRectangle( point.
x() - searchRadius, point.
y() - searchRadius, point.
x() + searchRadius, point.
y() + searchRadius );
879 int selectedIndex = -1;
883 double sqrMaxDistFromPoint = pow( searchRadius, 2 );
884 for (
const int edgeIndex : edgeIndexes )
890 const double sqrDist = point.
sqrDistToSegment( vertex1.
x(), vertex1.
y(), vertex2.
x(), vertex2.
y(), projPoint, 0 );
891 if ( sqrDist < sqrMaxDistFromPoint )
893 selectedIndex = edgeIndex;
894 projectedPoint = projPoint;
895 sqrMaxDistFromPoint = sqrDist;
900 return selectedIndex;
915 mTemporalProperties->
setReferenceTime( referenceTime, lDataProvider->temporalCapabilities() );
934 return exactPosition;
935 const QgsRectangle rectangle( point.
x() - searchRadius, point.
y() - searchRadius, point.
x() + searchRadius, point.
y() + searchRadius );
936 double maxDistance = searchRadius;
938 const QList<int> edgeIndexes = mesh->edgeIndexesForRectangle( rectangle );
939 for (
const int edgeIndex : edgeIndexes )
941 const QgsMeshEdge &edge = mesh->edges().at( edgeIndex );
944 const double dist1 = point.
distance( vertex1 );
945 const double dist2 = point.
distance( vertex2 );
946 if ( dist1 < maxDistance )
949 exactPosition = vertex1;
951 if ( dist2 < maxDistance )
954 exactPosition = vertex2;
959 const QList<int> faceIndexes = mesh->faceIndexesForRectangle( rectangle );
960 for (
const int faceIndex : faceIndexes )
962 const QgsMeshFace &face = mesh->triangles().at( faceIndex );
963 for (
int i = 0; i < 3; ++i )
966 const double dist = point.
distance( vertex );
967 if ( dist < maxDistance )
970 exactPosition = vertex;
975 return exactPosition;
983 closestEdge( point, searchRadius, projectedPoint );
985 return projectedPoint;
995 return centroidPosition;
996 const QgsRectangle rectangle( point.
x() - searchRadius, point.
y() - searchRadius, point.
x() + searchRadius, point.
y() + searchRadius );
997 double maxDistance = std::numeric_limits<double>::max();
999 const QList<int> faceIndexes = mesh->faceIndexesForRectangle( rectangle );
1000 for (
const int faceIndex : faceIndexes )
1002 const int nativefaceIndex = mesh->trianglesToNativeFaces().at( faceIndex );
1003 if ( nativefaceIndex < 0 && nativefaceIndex >= mesh->faceCentroids().count() )
1007 if ( dist < maxDistance )
1014 return centroidPosition;
1021 mDatasetGroupStore->resetDatasetGroupTreeItem();
1022 updateActiveDatasetGroups();
1029 if ( !mDataProvider )
1032 for (
int i = 0; i < groupCount; ++i )
1046 const qint64 time = mDatasetGroupStore->datasetRelativeTime( index );
1058 return mDatasetGroupStore->datasetRelativeTime( index );
1070 message = QObject::tr(
"Face %1 invalid" ).arg( error.
elementIndex );
1073 message = QObject::tr(
"Too many vertices for face %1" ).arg( error.
elementIndex );
1076 message = QObject::tr(
"Face %1 is flat" ).arg( error.
elementIndex );
1079 message = QObject::tr(
"Vertex %1 is a unique shared vertex" ).arg( error.
elementIndex );
1082 message = QObject::tr(
"Vertex %1 is invalid" ).arg( error.
elementIndex );
1085 message = QObject::tr(
"Face %1 is manifold" ).arg( error.
elementIndex );
1124 mRendererCache.reset();
1132 mMeshEditor->deleteLater();
1133 mMeshEditor =
nullptr;
1136 arg(
name(), detailsErrorMessage(
error ) ), QString(), Qgis::MessageLevel::Critical );
1141 mDataProvider->
close();
1144 mExtraDatasetUri.clear();
1148 if ( mDatasetGroupStore->addDatasetGroup( zValueDatasetGroup.get() ) )
1149 zValueDatasetGroup.release();
1166 QString detailsError;
1170 detailsError = tr(
"Unknown inconsistent mesh error" );
1175 detailsError = detailsErrorMessage(
error );
1178 if ( !detailsError.isEmpty() )
1181 arg(
name(), detailsError ), QString(), Qgis::MessageLevel::Critical );
1187 if ( !mDataProvider )
1190 const bool res = mDataProvider->
saveMeshFrame( *mNativeMesh.get() );
1192 if ( continueEditing )
1199 mMeshEditor->deleteLater();
1200 mMeshEditor =
nullptr;
1206 mDatasetGroupStore->setPersistentProvider( mDataProvider, QStringList() );
1217 if ( !mDataProvider )
1220 mTriangularMeshes.clear();
1224 mRendererCache.reset(
new QgsMeshLayerRendererCache() );
1227 if ( continueEditing )
1234 mMeshEditor->deleteLater();
1235 mMeshEditor =
nullptr;
1239 mDatasetGroupStore->setPersistentProvider( mDataProvider, QStringList() );
1254 mTriangularMeshes.at( 0 )->update( mNativeMesh.get(), transform );
1255 mRendererCache.reset(
new QgsMeshLayerRendererCache() );
1265 if ( !mMeshEditor->
reindex( renumber ) )
1268 mTriangularMeshes.clear();
1270 mTriangularMeshes.at( 0 )->update( mNativeMesh.get(), transform );
1271 mRendererCache.reset(
new QgsMeshLayerRendererCache() );
1300 case QgsMesh::ElementType::Vertex:
1302 case QgsMesh::ElementType::Edge:
1304 case QgsMesh::ElementType::Face:
1316 else if ( mDataProvider )
1327 else if ( mDataProvider )
1337 return mNativeMesh->edgeCount();
1338 else if ( mDataProvider )
1343void QgsMeshLayer::updateActiveDatasetGroups()
1349 if ( !mDatasetGroupStore->datasetGroupTreeItem() )
1359 if ( !activeScalarItem && treeItem->childCount() > 0 && oldActiveScalar != -1 )
1360 activeScalarItem = treeItem->
child( 0 );
1362 if ( activeScalarItem && !activeScalarItem->
isEnabled() )
1364 for (
int i = 0; i < treeItem->childCount(); ++i )
1366 activeScalarItem = treeItem->
child( i );
1370 activeScalarItem =
nullptr;
1374 if ( activeScalarItem )
1382 if ( !( activeVectorItem && activeVectorItem->
isEnabled() ) )
1393void QgsMeshLayer::setDataSourcePrivate(
const QString &dataSource,
const QString &baseName,
const QString &provider,
const QgsDataProvider::ProviderOptions &options, QgsDataProvider::ReadFlags flags )
1401 if ( !
mDataSource.isEmpty() && !provider.isEmpty() )
1402 setDataProvider( provider, options,
flags );
1409 switch ( elementType )
1412 return snapOnVertex( point, searchRadius );
1414 return snapOnEdge( point, searchRadius );
1416 return snapOnFace( point, searchRadius );
1439 context.
lastScope()->
setVariable( QStringLiteral(
"_mesh_layer" ), QVariant::fromValue(
this ) );
1441 expression.
prepare( &context );
1443 for (
int i = 0; i < mNativeMesh->vertexCount(); ++i )
1447 if ( expression.
evaluate( &context ).toBool() )
1472 context.
lastScope()->
setVariable( QStringLiteral(
"_mesh_layer" ), QVariant::fromValue(
this ) );
1474 expression.
prepare( &context );
1476 for (
int i = 0; i < mNativeMesh->faceCount(); ++i )
1480 if ( expression.
evaluate( &context ).toBool() )
1524 return mSimplificationSettings;
1531 mSimplificationSettings = simplifySettings;
1542 props[
"color1"] =
"13,8,135,255";
1543 props[
"color2"] =
"240,249,33,255";
1545 "0.0196078;27,6,141,255:0.0392157;38,5,145,255:0.0588235;47,5,150,255:0.0784314;56,4,154,255:0.0980392;65,4,157,255:"
1546 "0.117647;73,3,160,255:0.137255;81,2,163,255:0.156863;89,1,165,255:0.176471;97,0,167,255:0.196078;105,0,168,255:"
1547 "0.215686;113,0,168,255:0.235294;120,1,168,255:0.254902;128,4,168,255:0.27451;135,7,166,255:0.294118;142,12,164,255:"
1548 "0.313725;149,17,161,255:0.333333;156,23,158,255:0.352941;162,29,154,255:0.372549;168,34,150,255:0.392157;174,40,146,255:"
1549 "0.411765;180,46,141,255:0.431373;186,51,136,255:0.45098;191,57,132,255:0.470588;196,62,127,255:0.490196;201,68,122,255:"
1550 "0.509804;205,74,118,255:0.529412;210,79,113,255:0.54902;214,85,109,255:0.568627;218,91,105,255:0.588235;222,97,100,255:"
1551 "0.607843;226,102,96,255:0.627451;230,108,92,255:0.647059;233,114,87,255:0.666667;237,121,83,255:0.686275;240,127,79,255:"
1552 "0.705882;243,133,75,255:0.72549;245,140,70,255:0.745098;247,147,66,255:0.764706;249,154,62,255:0.784314;251,161,57,255:"
1553 "0.803922;252,168,53,255:0.823529;253,175,49,255:0.843137;254,183,45,255:0.862745;254,190,42,255:0.882353;253,198,39,255:"
1554 "0.901961;252,206,37,255:0.921569;251,215,36,255:0.941176;248,223,37,255:0.960784;246,232,38,255:0.980392;243,240,39,255";
1558void QgsMeshLayer::assignDefaultStyleToDatasetGroup(
int groupIndex )
1563 const double groupMin =
metadata.minimum();
1564 const double groupMax =
metadata.maximum();
1567 fcn.classifyColorRamp( 5, -1,
QgsRectangle(),
nullptr );
1596 createSimplifiedMeshes();
1599 if ( !mRendererCache )
1600 mRendererCache.reset(
new QgsMeshLayerRendererCache() );
1612void QgsMeshLayer::checkSymbologyConsistency()
1616 const QList<int> groupIndexes = mDatasetGroupStore->datasetGroupIndexes();
1619 if ( !groupIndexes.empty() )
1636 Q_UNUSED( errorMessage )
1639 const QDomElement elem = node.toElement();
1643 const QDomElement elemRendererSettings = elem.firstChildElement(
"mesh-renderer-settings" );
1644 if ( !elemRendererSettings.isNull() )
1645 mRendererSettings.
readXml( elemRendererSettings, context );
1647 checkSymbologyConsistency();
1649 const QDomElement elemSimplifySettings = elem.firstChildElement(
"mesh-simplify-settings" );
1650 if ( !elemSimplifySettings.isNull() )
1651 mSimplificationSettings.
readXml( elemSimplifySettings, context );
1654 const QDomNode blendModeNode = node.namedItem( QStringLiteral(
"blendMode" ) );
1655 if ( !blendModeNode.isNull() )
1657 const QDomElement e = blendModeNode.toElement();
1664 const QDomNode layerOpacityNode = node.namedItem( QStringLiteral(
"layerOpacity" ) );
1665 if ( !layerOpacityNode.isNull() )
1667 const QDomElement e = layerOpacityNode.toElement();
1680 Q_UNUSED( errorMessage )
1683 QDomElement elem = node.toElement();
1687 const QDomElement elemRendererSettings = mRendererSettings.
writeXml( doc, context );
1688 elem.appendChild( elemRendererSettings );
1690 const QDomElement elemSimplifySettings = mSimplificationSettings.
writeXml( doc, context );
1691 elem.appendChild( elemSimplifySettings );
1694 QDomElement blendModeElement = doc.createElement( QStringLiteral(
"blendMode" ) );
1696 blendModeElement.appendChild( blendModeText );
1697 node.appendChild( blendModeElement );
1702 QDomElement layerOpacityElem = doc.createElement( QStringLiteral(
"layerOpacity" ) );
1703 const QDomText layerOpacityText = doc.createTextNode( QString::number(
opacity() ) );
1704 layerOpacityElem.appendChild( layerOpacityText );
1705 node.appendChild( layerOpacityElem );
1715 return writeSymbology( node, doc, errorMessage, context, categories );
1722 return readSymbology( node, errorMessage, context, categories );
1732 if ( uriParts.contains( QStringLiteral(
"path" ) ) )
1734 QString filePath = uriParts.value( QStringLiteral(
"path" ) ).toString();
1736 uriParts.insert( QStringLiteral(
"path" ), filePath );
1749 if ( uriParts.contains( QStringLiteral(
"path" ) ) )
1751 QString filePath = uriParts.value( QStringLiteral(
"path" ) ).toString();
1753 uriParts.insert( QStringLiteral(
"path" ), filePath );
1766 const QDomNode pkeyNode = layer_node.namedItem( QStringLiteral(
"provider" ) );
1768 if ( pkeyNode.isNull() )
1774 const QDomElement pkeyElt = pkeyNode.toElement();
1784 QgsDataProvider::ReadFlags
flags = QgsDataProvider::ReadFlags();
1790 const QDomElement elemExtraDatasets = layer_node.firstChildElement( QStringLiteral(
"extra-datasets" ) );
1791 if ( !elemExtraDatasets.isNull() )
1793 QDomElement elemUri = elemExtraDatasets.firstChildElement( QStringLiteral(
"uri" ) );
1794 while ( !elemUri.isNull() )
1797 mExtraDatasetUri.append( uri );
1798 elemUri = elemUri.nextSiblingElement( QStringLiteral(
"uri" ) );
1802 if ( pkeyNode.toElement().hasAttribute( QStringLiteral(
"time-unit" ) ) )
1803 mTemporalUnit =
static_cast<QgsUnitTypes::TemporalUnit>( pkeyNode.toElement().attribute( QStringLiteral(
"time-unit" ) ).toInt() );
1806 const QDomElement elemDatasetGroupsStore = layer_node.firstChildElement( QStringLiteral(
"mesh-dataset-groups-store" ) );
1807 if ( elemDatasetGroupsStore.isNull() )
1810 mDatasetGroupStore->readXml( elemDatasetGroupsStore, context );
1821 const QDomElement elemStaticDataset = layer_node.firstChildElement( QStringLiteral(
"static-active-dataset" ) );
1822 if ( elemStaticDataset.hasAttribute( QStringLiteral(
"scalar" ) ) )
1824 mStaticScalarDatasetIndex = elemStaticDataset.attribute( QStringLiteral(
"scalar" ) ).toInt();
1826 if ( elemStaticDataset.hasAttribute( QStringLiteral(
"vector" ) ) )
1828 mStaticVectorDatasetIndex = elemStaticDataset.attribute( QStringLiteral(
"vector" ) ).toInt();
1839 QDomElement mapLayerNode = layer_node.toElement();
1841 if ( mapLayerNode.isNull() || ( QLatin1String(
"maplayer" ) != mapLayerNode.nodeName() ) )
1850 if ( mDataProvider )
1852 QDomElement provider = document.createElement( QStringLiteral(
"provider" ) );
1853 const QDomText providerText = document.createTextNode(
providerType() );
1854 provider.appendChild( providerText );
1855 layer_node.appendChild( provider );
1858 const QStringList extraDatasetUris = mDataProvider->
extraDatasets();
1859 QDomElement elemExtraDatasets = document.createElement( QStringLiteral(
"extra-datasets" ) );
1860 for (
const QString &uri : extraDatasetUris )
1863 QDomElement elemUri = document.createElement( QStringLiteral(
"uri" ) );
1864 elemUri.appendChild( document.createTextNode( path ) );
1865 elemExtraDatasets.appendChild( elemUri );
1867 layer_node.appendChild( elemExtraDatasets );
1870 QDomElement elemStaticDataset = document.createElement( QStringLiteral(
"static-active-dataset" ) );
1871 elemStaticDataset.setAttribute( QStringLiteral(
"scalar" ), mStaticScalarDatasetIndex );
1872 elemStaticDataset.setAttribute( QStringLiteral(
"vector" ), mStaticVectorDatasetIndex );
1873 layer_node.appendChild( elemStaticDataset );
1877 layer_node.appendChild( mDatasetGroupStore->writeXml( document, context ) );
1881 return writeSymbology( layer_node, document, errorMsg, context );
1888 if ( !mMeshEditor && mDataProvider && mDataProvider->
isValid() )
1891 mDatasetGroupStore->setPersistentProvider( mDataProvider, QStringList() );
1895 mNativeMesh.reset(
new QgsMesh );
1903 mTriangularMeshes.clear();
1906 mRendererCache.reset(
new QgsMeshLayerRendererCache() );
1908 checkSymbologyConsistency();
1918 if ( mDataProvider )
1921 return QStringList();
1929 QString myMetadata = QStringLiteral(
"<html>\n<body>\n" );
1934 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Information from provider" ) + QStringLiteral(
"</h1>\n<hr>\n" );
1935 myMetadata += QLatin1String(
"<table class=\"list-view\">\n" );
1938 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Extent" ) + QStringLiteral(
"</td><td>" ) +
extent().
toString() + QStringLiteral(
"</td></tr>\n" );
1941 QLocale locale = QLocale();
1942 locale.setNumberOptions( locale.numberOptions() &= ~QLocale::NumberOption::OmitGroupSeparator );
1946 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" )
1947 + tr(
"Vertex count" ) + QStringLiteral(
"</td><td>" )
1949 + QStringLiteral(
"</td></tr>\n" );
1950 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" )
1951 + tr(
"Face count" ) + QStringLiteral(
"</td><td>" )
1952 + ( locale.toString(
static_cast<qlonglong
>(
meshFaceCount() ) ) )
1953 + QStringLiteral(
"</td></tr>\n" );
1954 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" )
1955 + tr(
"Edge count" ) + QStringLiteral(
"</td><td>" )
1956 + ( locale.toString(
static_cast<qlonglong
>(
meshEdgeCount() ) ) )
1957 + QStringLiteral(
"</td></tr>\n" );
1958 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" )
1959 + tr(
"Dataset groups count" ) + QStringLiteral(
"</td><td>" )
1961 + QStringLiteral(
"</td></tr>\n" );
1965 myMetadata += QLatin1String(
"</table>\n<br><br>" );
1971 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Identification" ) + QStringLiteral(
"</h1>\n<hr>\n" );
1972 myMetadata += htmlFormatter.identificationSectionHtml( );
1973 myMetadata += QLatin1String(
"<br><br>\n" );
1976 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Extent" ) + QStringLiteral(
"</h1>\n<hr>\n" );
1977 myMetadata += htmlFormatter.extentSectionHtml(
isSpatial() );
1978 myMetadata += QLatin1String(
"<br><br>\n" );
1981 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Access" ) + QStringLiteral(
"</h1>\n<hr>\n" );
1982 myMetadata += htmlFormatter.accessSectionHtml( );
1983 myMetadata += QLatin1String(
"<br><br>\n" );
1986 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Contacts" ) + QStringLiteral(
"</h1>\n<hr>\n" );
1987 myMetadata += htmlFormatter.contactsSectionHtml( );
1988 myMetadata += QLatin1String(
"<br><br>\n" );
1991 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Links" ) + QStringLiteral(
"</h1>\n<hr>\n" );
1992 myMetadata += htmlFormatter.linksSectionHtml( );
1993 myMetadata += QLatin1String(
"<br><br>\n" );
1996 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"History" ) + QStringLiteral(
"</h1>\n<hr>\n" );
1997 myMetadata += htmlFormatter.historySectionHtml( );
1998 myMetadata += QLatin1String(
"<br><br>\n" );
2000 myMetadata += QLatin1String(
"\n</body>\n</html>\n" );
2008 return mMeshEditor !=
nullptr;
2015 mDatasetGroupStore->setPersistentProvider(
nullptr, QStringList() );
2017 delete mDataProvider;
2023 if ( !mDataProvider )
2025 QgsDebugMsgLevel( QStringLiteral(
"Unable to get mesh data provider" ), 2 );
2029 mDataProvider->setParent(
this );
2030 QgsDebugMsgLevel( QStringLiteral(
"Instantiated the mesh data provider plugin" ), 2 );
2039 if ( !mTemporalProperties->
isValid() )
2046 mDatasetGroupStore->setPersistentProvider( mDataProvider, mExtraDatasetUri );
2050 if ( provider == QLatin1String(
"mesh_memory" ) )
2059 int globalIndex = mDatasetGroupStore->globalDatasetGroupIndexInSource( mDataProvider, i );
2060 if ( globalIndex != -1 &&
2062 assignDefaultStyleToDatasetGroup( globalIndex );
2077 return mTemporalProperties;
2084 return mElevationProperties;
@ TooManyVerticesInFace
A face has more vertices than the maximum number supported per face.
@ InvalidFace
An error occurs due to an invalid face (for example, vertex indexes are unordered)
@ UniqueSharedVertex
A least two faces share only one vertices.
@ ManifoldFace
ManifoldFace.
@ InvalidVertex
An error occurs due to an invalid vertex (for example, vertex index is out of range the available ver...
@ FlatFace
A flat face is present.
QgsVertexIterator vertices() const
Returns a read-only, Java-style iterator for traversal of vertices of all the geometry,...
Abstract base class for objects which generate elevation profiles.
A ramp shader will color a raster pixel based on a list of values ranges in a ramp.
@ EqualInterval
Uses equal interval.
QgsColorRamp * sourceColorRamp() const
Returns the source color ramp.
@ Exact
Assigns the color of the exact matching value in the color ramp item list.
void setClassificationMode(ClassificationMode classificationMode)
Sets classification mode.
void setColorRampItemList(const QList< QgsColorRampShader::ColorRampItem > &list)
Sets a custom colormap.
void setColorRampType(QgsColorRampShader::Type colorRampType)
Sets the color ramp type.
Abstract base class for color ramps.
virtual QColor color(double value) const =0
Returns the color corresponding to a specified value.
Contains information about the context in which a coordinate transform is executed.
bool hasTemporalCapabilities() const
Returns true if the provider has temporal capabilities available.
@ 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)
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
virtual QgsCoordinateReferenceSystem crs() const =0
Returns the coordinate system for the data source.
void dataChanged()
Emitted whenever a change is made to the data provider which may have caused changes in the provider'...
virtual bool isValid() const =0
Returns true if this is a valid layer.
virtual QStringList subLayers() const
Sub-layers handled by this provider, in order from bottom to top.
virtual void reloadData()
Reloads the data from the source for providers with data caches to synchronize, changes in the data s...
virtual QgsRectangle extent() const =0
Returns the extent of the layer.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext)
Sets data coordinate transform context to transformContext.
void setVariable(const QString &name, const QVariant &value, bool isStatic=false)
Convenience method for setting a variable in the context scope by name name and value.
static QgsExpressionContextScope * meshExpressionScope(QgsMesh::ElementType elementType)
Creates a new scope which contains functions relating to mesh layer element elementType.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
QgsExpressionContextScope * lastScope()
Returns the last scope added to the context.
void appendScope(QgsExpressionContextScope *scope)
Appends a scope to the end of the context.
Class for parsing and evaluation of expressions (formerly called "search strings").
bool prepare(const QgsExpressionContext *context)
Gets the expression ready for evaluation - find out column indexes.
QVariant evaluate()
Evaluate the feature and return the result.
static QgsColorRamp * create(const QVariantMap &properties=QVariantMap())
Creates a new QgsColorRamp from a map of properties.
Class defining color to render mesh datasets.
Represents a simple line renderer with width and color varying depending on values.
Represents a width than can vary depending on values.
void setMaximumValue(double maximumValue)
Sets the maximum value used to defined the variable width.
void setMinimumValue(double minimumValue)
Sets the minimum value used to defined the variable width.
A representation of the interval between two datetime values.
double seconds() const
Returns the interval duration in seconds.
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 * defaultMeshLegend(QgsMeshLayer *ml)
Create new legend implementation for mesh layer.
Base class for utility classes that encapsulate information necessary for rendering of map layers.
Base class for storage of map layer temporal properties.
virtual void setDefaultsFromDataProviderTemporalCapabilities(const QgsDataProviderTemporalCapabilities *capabilities)=0
Sets the layers temporal settings to appropriate defaults based on a provider's temporal capabilities...
Base class for all map layer types.
virtual bool isSpatial() const
Returns true if the layer is considered a spatial layer, ie it has some form of geometry associated w...
void editingStopped()
Emitted when edited changes have been successfully written to the data provider.
QString source() const
Returns the source for the layer.
void setBlendMode(QPainter::CompositionMode blendMode)
Set the blending mode used for rendering a layer.
void trigger3DUpdate()
Will advise any 3D maps that this layer requires to be updated in the scene.
QgsMapLayer::LayerFlags flags() const
Returns the flags for this layer.
void editingStarted()
Emitted when editing on this layer has started.
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.
void triggerRepaint(bool deferredUpdate=false)
Will advise the map canvas (and any other interested party) that this layer requires to be repainted.
QString crsHtmlMetadata() const
Returns a HTML fragment containing the layer's CRS metadata, for use in the htmlMetadata() method.
QgsLayerMetadata metadata
QPainter::CompositionMode blendMode() const
Returns the current blending mode for a layer.
virtual void setOpacity(double opacity)
Sets the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1....
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.
virtual QgsError error() const
Gets current status error.
void dataSourceChanged()
Emitted whenever the layer's data source has been changed.
void emitStyleChanged()
Triggers an emission of the styleChanged() signal.
void dataChanged()
Data of layer changed.
virtual QgsMapLayer * clone() const =0
Returns a new instance equivalent to this one except for the id which is still unique.
QString mDataSource
Data source description string, varies by layer type.
@ 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 setLegend(QgsMapLayerLegend *legend)
Assign a legend controller to the map layer.
@ Rendering
Rendering: scale visibility, simplify method, opacity.
void layerModified()
Emitted when modifications has been done on layer.
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.
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.
Abstract class to interpolate 3d stacked mesh data to 2d data.
QgsMeshDataBlock calculate(const QgsMesh3dDataBlock &block3d, QgsFeedback *feedback=nullptr) const
Calculated 2d block values from 3d stacked mesh values.
QgsMesh3dDataBlock is a block of 3d stacked mesh data related N faces defined on base mesh frame.
QgsMeshDataBlock is a block of integers/doubles that can be used to retrieve: active flags (e....
QgsMeshDatasetValue value(int index) const
Returns a value represented by the index For active flag the behavior is undefined.
bool isValid() const
Whether the block is valid.
QgsUnitTypes::TemporalUnit temporalUnit() const
Returns the temporal unit used to read data by the data provider.
QDateTime referenceTime() const
Returns the reference time.
MatchingTemporalDatasetMethod
Method for selection of temporal mesh dataset from a range time.
qint64 firstTimeStepDuration(int group) const
Returns the duration of the first time step of the dataset group with index group.
Base class for providing data for QgsMeshLayer.
virtual QgsMeshDriverMetadata driverMetadata() const
Returns the mesh driver metadata of the provider.
QgsMeshDataProviderTemporalCapabilities * temporalCapabilities() override
Returns the provider's temporal capabilities.
void setTemporalUnit(QgsUnitTypes::TemporalUnit unit)
Sets the temporal unit of the provider and reload data if it changes.
virtual void close()=0
Closes the data provider and free every resources used.
virtual int vertexCount() const =0
Returns number of vertices in the native mesh.
virtual void populateMesh(QgsMesh *mesh) const =0
Populates the mesh vertices, edges and faces.
virtual bool saveMeshFrame(const QgsMesh &mesh)=0
Saves the mesh frame to the source.
virtual int edgeCount() const =0
Returns number of edges in the native mesh.
virtual int faceCount() const =0
Returns number of faces in the native mesh.
Class used to register and access all the dataset groups related to a mesh layer.
void datasetGroupsAdded(QList< int > indexes)
Emitted after dataset groups are added.
Tree item for display of the mesh dataset groups.
int datasetGroupIndex() const
QgsMeshDatasetGroupTreeItem * childFromDatasetGroupIndex(int index)
Returns the child with dataset group index Searches as depper as needed on the child hierarchy.
QgsMeshDatasetGroupTreeItem * child(int row) const
Returns a child.
Abstract class that represents a dataset group.
QgsMeshDatasetIndex is index that identifies the dataset group (e.g.
bool isValid() const
Returns whether index is valid, ie at least groups is set.
int group() const
Returns a group index.
int dataset() const
Returns a dataset index within group()
virtual int datasetGroupCount() const =0
Returns number of datasets groups loaded.
virtual QStringList extraDatasets() const =0
Returns list of additional dataset file URIs added using addDataset() calls.
QgsMeshDatasetValue represents single dataset value.
double y() const
Returns y value.
double x() const
Returns x value.
Class that represents an error during mesh editing.
Qgis::MeshEditingErrorType errorType
Class that makes edit operation on a mesh.
QgsMeshEditingError initialize()
Initializes the mesh editor and returns first error if the internal native mesh has topological error...
int validFacesCount() const
Returns the count of valid faces, that is non void faces in the mesh.
bool checkConsistency(QgsMeshEditingError &error) const
Return true if the edited mesh is consistent.
QgsRectangle extent() const
Returns the extent of the edited mesh.
QgsMeshEditingError initializeWithErrorsFix()
Initializes the mesh editor.
int maximumVerticesPerFace() const
Returns the maximum count of vertices per face that the mesh can support.
void stopEditing()
Stops editing.
void meshEdited()
Emitted when the mesh is edited.
void resetTriangularMesh(QgsTriangularMesh *triangularMesh)
Resets the triangular mesh.
bool isModified() const
Returns whether the mesh has been modified.
int validVerticesCount() const
Returns the count of valid vertices, that is non void vertices in the mesh.
bool reindex(bool renumbering)
Reindexes the mesh, that is remove unusued index of face and vertices, this operation void the undo/r...
QgsMeshDatasetGroup * createZValueDatasetGroup()
Creates and returns a scalar dataset group with value on vertex that is can be used to access the Z v...
Mesh layer specific subclass of QgsMapLayerElevationProperties.
QgsMeshLayerElevationProperties * clone() const override
Creates a clone of the properties.
Implementation of QgsAbstractProfileGenerator for mesh layers.
Implementation of threaded rendering for mesh layers.
Implementation of map layer temporal properties for mesh layers.
QDateTime referenceTime() const
Returns the reference time.
bool isValid() const
Returns whether the instance is valid.
void setMatchingMethod(const QgsMeshDataProviderTemporalCapabilities::MatchingTemporalDatasetMethod &matchingMethod)
Sets the method used to match dataset from temporal capabilities.
QgsMeshDataProviderTemporalCapabilities::MatchingTemporalDatasetMethod matchingMethod() const
Returns the method used to match dataset from temporal capabilities.
void setReferenceTime(const QDateTime &referenceTime, const QgsDataProviderTemporalCapabilities *capabilities)
Sets the reference time and update the time extent from the temporal capabilities,...
void setDefaultsFromDataProviderTemporalCapabilities(const QgsDataProviderTemporalCapabilities *capabilities) override
Sets the layers temporal settings to appropriate defaults based on a provider's temporal capabilities...
bool alwaysLoadReferenceTimeFromSource() const
Returns whether the time proporties are automatically reloaded from provider when project is opened o...
QgsDateTimeRange timeExtent() const
Returns the time extent.
Represents a mesh layer supporting display of data on structured or unstructured meshes.
QList< int > selectVerticesByExpression(QgsExpression expression)
Returns a list of vertex indexes that meet the condition defined by expression with the context expre...
void setMeshSimplificationSettings(const QgsMeshSimplificationSettings &meshSimplificationSettings)
Sets mesh simplification settings.
int datasetCount(const QgsMeshDatasetIndex &index) const
Returns the dataset count in the dataset groups.
QList< int > datasetGroupsIndexes() const
Returns the list of indexes of dataset groups handled by the layer.
void stopFrameEditing(const QgsCoordinateTransform &transform)
Stops editing of the mesh, re-indexes the faces and vertices, rebuilds the triangular mesh and its sp...
QgsRectangle extent() const override
Returns the extent of the layer.
void setStaticVectorDatasetIndex(const QgsMeshDatasetIndex &staticVectorDatasetIndex)
Sets the static vector dataset index that is rendered if the temporal properties is not active.
void setStaticScalarDatasetIndex(const QgsMeshDatasetIndex &staticScalarDatasetIndex)
Sets the static scalar dataset index that is rendered if the temporal properties is not active.
bool contains(const QgsMesh::ElementType &type) const
Returns whether the mesh contains at mesh elements of given type.
QgsMeshRendererSettings rendererSettings() const
Returns renderer settings.
QgsMesh3dDataBlock dataset3dValues(const QgsMeshDatasetIndex &index, int faceIndex, int count) const
Returns N vector/scalar values from the face index from the dataset for 3d stacked meshes.
QList< QgsMeshDatasetIndex > datasetIndexInRelativeTimeInterval(const QgsInterval &startRelativeTime, const QgsInterval &endRelativeTime, int datasetGroupIndex) const
Returns a list of dataset indexes from datasets group that are in a interval time from the layer refe...
void activeScalarDatasetGroupChanged(int index)
Emitted when active scalar group dataset is changed.
int datasetGroupCount() const
Returns the dataset groups count handle by the layer.
void updateTriangularMesh(const QgsCoordinateTransform &transform=QgsCoordinateTransform())
Gets native mesh and updates (creates if it doesn't exist) the base triangular mesh.
bool addDatasets(const QString &path, const QDateTime &defaultReferenceTime=QDateTime())
Adds datasets to the mesh from file with path.
bool isModified() const override
Returns whether the mesh frame has been modified since the last save.
void activeVectorDatasetGroupChanged(int index)
Emitted when active vector group dataset is changed.
void reload() override
Synchronises with changes in the datasource.
QgsMeshDatasetIndex activeScalarDatasetAtTime(const QgsDateTimeRange &timeRange) const
Returns dataset index from active scalar group depending on the time range.
QgsPointXY snapOnElement(QgsMesh::ElementType elementType, const QgsPointXY &point, double searchRadius)
Returns the position of the snapped point on the mesh element closest to point intersecting with the ...
bool readXml(const QDomNode &layer_node, QgsReadWriteContext &context) override
Called by readLayerXML(), used by children to read state specific to them from project files.
QStringList subLayers() const override
Returns the sublayers of this layer.
QgsMeshEditor * meshEditor()
Returns a pointer to the mesh editor own by the mesh layer.
void setDatasetGroupTreeRootItem(QgsMeshDatasetGroupTreeItem *rootItem)
Sets the root items of the dataset group tree item.
QgsMeshDatasetValue dataset1dValue(const QgsMeshDatasetIndex &index, const QgsPointXY &point, double searchRadius) const
Returns the value of 1D mesh dataset defined on edge that are in the search area defined by point ans...
QgsMesh * nativeMesh()
Returns native mesh (nullptr before rendering or calling to updateMesh)
QString loadDefaultStyle(bool &resultFlag) FINAL
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
QgsTriangularMesh * triangularMeshByLodIndex(int lodIndex) const
Returns triangular corresponding to the index of level of details.
QString htmlMetadata() const override
Obtain a formatted HTML string containing assorted metadata for this layer.
int meshFaceCount() const
Returns the faces count of the mesh frame.
QList< int > selectFacesByExpression(QgsExpression expression)
Returns a list of faces indexes that meet the condition defined by expression with the context expres...
QgsMesh3dDataBlock dataset3dValue(const QgsMeshDatasetIndex &index, const QgsPointXY &point) const
Returns the 3d values of stacked 3d mesh defined by the given point.
QgsMapLayerElevationProperties * elevationProperties() override
Returns the layer's elevation properties.
QgsMeshLayer * clone() const override
Returns a new instance equivalent to this one except for the id which is still unique.
void timeSettingsChanged()
Emitted when time format is changed.
QList< int > enabledDatasetGroupsIndexes() const
Returns the list of indexes of enables dataset groups handled by the layer.
void resetDatasetGroupTreeItem()
Reset the dataset group tree item to default from provider.
int triangularMeshLevelOfDetailCount() const
Returns the count of levels of detail of the mesh simplification.
bool rollBackFrameEditing(const QgsCoordinateTransform &transform, bool continueEditing=true)
Rolls Back editing of the mesh frame.
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...
QgsMeshDatasetIndex staticVectorDatasetIndex() const
Returns the static vector dataset index that is rendered if the temporal properties is not active.
QgsMeshDatasetIndex datasetIndexAtRelativeTime(const QgsInterval &relativeTime, int datasetGroupIndex) const
Returns dataset index from datasets group depending on the relative time from the layer reference tim...
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 commitFrameEditing(const QgsCoordinateTransform &transform, bool continueEditing=true)
Commits editing of the mesh frame, Rebuilds the triangular mesh and its spatial index with transform,...
QgsAbstractProfileGenerator * createProfileGenerator(const QgsProfileRequest &request) override
Given a profile request, returns a new profile generator ready for generating elevation profiles.
QgsMeshDataBlock datasetValues(const QgsMeshDatasetIndex &index, int valueIndex, int count) const
Returns N vector/scalar values from the index from the dataset.
bool writeStyle(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const override
Write just the symbology information for the layer into the document.
void setTransformContext(const QgsCoordinateTransformContext &transformContext) override
Sets the coordinate transform context to transformContext.
int meshEdgeCount() const
Returns the edges count of the mesh frame.
QgsMeshSimplificationSettings meshSimplificationSettings() const
Returns mesh simplification settings.
QgsMapLayerRenderer * createMapRenderer(QgsRenderContext &rendererContext) override
Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context.
QgsMeshDatasetIndex activeVectorDatasetAtTime(const QgsDateTimeRange &timeRange) const
Returns dataset index from active vector group depending on the time range If the temporal properties...
bool isEditable() const override
Returns true if the layer can be edited.
QgsMeshDataBlock areFacesActive(const QgsMeshDatasetIndex &index, int faceIndex, int count) const
Returns whether the faces are active for particular dataset.
QgsMeshDatasetIndex staticScalarDatasetIndex() const
Returns the static scalar dataset index that is rendered if the temporal properties is not active.
bool isFaceActive(const QgsMeshDatasetIndex &index, int faceIndex) const
Returns N vector/scalar values from the face index from the dataset for 3d stacked meshes.
QgsMeshDatasetMetadata datasetMetadata(const QgsMeshDatasetIndex &index) const
Returns the dataset metadata.
bool saveDataset(const QString &path, int datasetGroupIndex, QString driver)
Saves datasets group on file with the specified driver.
bool supportsEditing() const override
Returns whether the layer supports editing or not.
QgsMeshDataProvider * dataProvider() override
Returns the layer's data provider, it may be nullptr.
QgsInterval firstValidTimeStep() const
Returns the first valid time step of the dataset groups, invalid QgInterval if no time step is presen...
QgsInterval datasetRelativeTime(const QgsMeshDatasetIndex &index)
Returns the relative time of the dataset from the reference time of its group.
QgsMeshDatasetIndex datasetIndexAtTime(const QgsDateTimeRange &timeRange, int datasetGroupIndex) const
Returns dataset index from datasets group depending on the time range.
Q_DECL_DEPRECATED bool startFrameEditing(const QgsCoordinateTransform &transform)
Starts editing of the mesh frame.
bool reindex(const QgsCoordinateTransform &transform, bool renumber)
Re-indexes the faces and vertices, and renumber the indexes if renumber is true.
QgsMeshDatasetValue datasetValue(const QgsMeshDatasetIndex &index, int valueIndex) const
Returns vector/scalar value associated with the index from the dataset To read multiple continuous va...
QgsMeshTimeSettings timeSettings() const
Returns time format settings.
QgsMapLayerTemporalProperties * temporalProperties() override
Returns the layer's temporal properties.
bool writeSymbology(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const override
int meshVertexCount() const
Returns the vertices count of the mesh frame.
void setReferenceTime(const QDateTime &referenceTime)
Sets the reference time of the layer.
bool readStyle(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) override
Read the style for the current layer from the DOM node supplied.
int extraDatasetGroupCount() const
Returns the extra dataset groups count handle by the layer.
void setRendererSettings(const QgsMeshRendererSettings &settings)
Sets new renderer settings.
qint64 datasetRelativeTimeInMilliseconds(const QgsMeshDatasetIndex &index)
Returns the relative time (in milliseconds) of the dataset from the reference time of its group.
QgsTriangularMesh * triangularMesh(double minimumTriangleSize=0) const
Returns triangular mesh (nullptr before rendering or calling to updateMesh).
void setTemporalMatchingMethod(const QgsMeshDataProviderTemporalCapabilities::MatchingTemporalDatasetMethod &matchingMethod)
Sets the method used to match the temporal dataset from a requested time, see activeVectorDatasetAtTi...
QgsMeshDatasetGroupTreeItem * datasetGroupTreeRootItem() const
Returns the root items of the dataset group tree item.
bool readSymbology(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) override
QString providerType() const
Returns the provider type for this layer.
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 reloaded()
Emitted when the mesh layer is reloaded, see reload()
QString formatTime(double hours)
Returns (date) time in hours formatted to human readable form.
QgsMeshDatasetGroupMetadata datasetGroupMetadata(const QgsMeshDatasetIndex &index) const
Returns the dataset groups metadata.
QgsMeshLayerRendererCache * rendererCache()
Returns native mesh (nullptr before rendering)
void setTimeSettings(const QgsMeshTimeSettings &settings)
Sets time format settings.
QgsMeshLayer(const QString &path=QString(), const QString &baseName=QString(), const QString &providerLib=QStringLiteral("mesh_memory"), const QgsMeshLayer::LayerOptions &options=QgsMeshLayer::LayerOptions())
Constructor - creates a mesh layer.
Represents a mesh renderer settings for mesh object.
void setEnabled(bool enabled)
Sets whether mesh structure rendering is enabled.
Represents a mesh renderer settings for scalar datasets.
void setClassificationMinimumMaximum(double minimum, double maximum)
Sets min/max values used for creation of the color ramp shader.
void setColorRampShader(const QgsColorRampShader &shader)
Sets color ramp shader function.
QgsColorRampShader colorRampShader() const
Returns color ramp shader function.
@ None
Does not use resampling.
@ NeighbourAverage
Does a simple average of values defined for all surrounding faces/vertices.
void setEdgeStrokeWidth(const QgsInterpolatedLineWidth &strokeWidth)
Sets the stroke width used to render edges scalar dataset.
void setDataResamplingMethod(const DataResamplingMethod &dataResamplingMethod)
Sets data interpolation method.
Represents all mesh renderer settings.
void setActiveVectorDatasetGroup(int activeVectorDatasetGroup)
Sets the active vector dataset group.
QgsMeshRendererScalarSettings scalarSettings(int groupIndex) const
Returns renderer settings.
int activeVectorDatasetGroup() const
Returns the active vector dataset group.
bool hasSettings(int datasetGroupIndex) const
Returns whether the group with index has render settings (scalar or vector)
int activeScalarDatasetGroup() const
Returns the active scalar dataset group.
QgsMesh3dAveragingMethod * averagingMethod() const
Returns averaging method for conversion of 3d stacked mesh data to 2d data.
void setActiveScalarDatasetGroup(int activeScalarDatasetGroup)
Sets the active scalar dataset group.
void readXml(const QDomElement &elem, const QgsReadWriteContext &context=QgsReadWriteContext())
Reads configuration from the given DOM element.
void setVectorSettings(int groupIndex, const QgsMeshRendererVectorSettings &settings)
Sets new renderer settings.
QDomElement writeXml(QDomDocument &doc, const QgsReadWriteContext &context=QgsReadWriteContext()) const
Writes configuration to a new DOM element.
void setScalarSettings(int groupIndex, const QgsMeshRendererScalarSettings &settings)
Sets new renderer settings.
void setNativeMeshSettings(const QgsMeshRendererMeshSettings &settings)
Sets new native mesh renderer settings, triggers repaint.
Represents a renderer settings for vector datasets.
void setColorRampShader(const QgsColorRampShader &colorRampShader)
Returns the color ramp shader used to render vector datasets.
Represents an overview renderer settings.
QDomElement writeXml(QDomDocument &doc, const QgsReadWriteContext &context) const
Writes configuration to a new DOM element.
void setEnabled(bool isEnabled)
Sets if the overview is active.
double reductionFactor() const
Returns the reduction factor used to build simplified mesh.
bool isEnabled() const
Returns if the overview is active.
void readXml(const QDomElement &elem, const QgsReadWriteContext &context)
Reads configuration from the given DOM element.
Represents a mesh time settings for mesh datasets.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true)
Adds a message to the log instance (and creates it if necessary).
static 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.
double distance(double x, double y) const SIP_HOLDGIL
Returns the distance between this point and a specified x, y coordinate.
double sqrDistToSegment(double x1, double y1, double x2, double y2, QgsPointXY &minDistPoint, double epsilon=DEFAULT_SEGMENT_EPSILON) const SIP_HOLDGIL
Returns the minimum distance between this point and a segment.
Point geometry type, with support for z-dimension and m-values.
double distance(double x, double y) const SIP_HOLDGIL
Returns the Cartesian 2D distance between this point and a specified x, y coordinate.
Encapsulates properties and constraints relating to fetching elevation profiles from different source...
QVariantMap decodeUri(const QString &providerKey, const QString &uri)
Breaks a provider data source URI into its component paths (e.g.
static QgsProviderRegistry * instance(const QString &pluginPath=QString())
Means of accessing canonical single instance.
QString encodeUri(const QString &providerKey, const QVariantMap &parts)
Reassembles a provider data source URI from its component paths (e.g.
virtual void setMaximumValue(double value)
Sets the maximum value for the raster shader.
virtual void setMinimumValue(double value)
Sets the minimum value for the raster shader.
The class is used as a container of context for various read/write operations on other objects.
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...
void setMinimal() SIP_HOLDGIL
Set a rectangle so that min corner is at max and max corner is at min.
Contains information about the context of a rendering operation.
QgsCoordinateTransform coordinateTransform() const
Returns the current coordinate transform for the context.
static QgsStyle * defaultStyle()
Returns default application-wide style.
QgsColorRamp * colorRamp(const QString &name) const
Returns a new copy of the specified color ramp.
bool isActive() const
Returns true if the temporal property is active.
void setIsActive(bool active)
Sets whether the temporal property is active.
static QgsMeshEditingError checkTopology(const QgsMesh &mesh, int maxVerticesPerFace)
Checks the topology of the mesh mesh, if error occurs, this mesh can't be edited.
Triangular/Derived Mesh is mesh with vertices in map coordinates.
const QVector< QgsMeshFace > & triangles() const
Returns triangles.
QList< int > edgeIndexesForRectangle(const QgsRectangle &rectangle) const
Finds indexes of edges intersecting given bounding box It uses spatial indexing.
const QVector< QgsMeshVertex > & vertices() const
Returns vertices in map coordinate system.
const QVector< QgsMeshEdge > & edges() const
Returns edges.
bool contains(const QgsMesh::ElementType &type) const
Returns whether the mesh contains mesh elements of given type.
const QVector< int > & trianglesToNativeFaces() const
Returns mapping between triangles and original faces.
int faceIndexForPoint_v2(const QgsPointXY &point) const
Finds index of triangle at given point It uses spatial indexing and don't use geos to be faster.
TemporalUnit
Temporal units.
@ TemporalMilliseconds
Milliseconds.
QgsMapLayerType
Types of layers that can be added to a map.
@ MeshLayer
Mesh layer. Added in QGIS 3.2.
CORE_EXPORT QgsMeshVertex centroid(const QgsMeshFace &face, const QVector< QgsMeshVertex > &vertices)
Returns the centroid of the face.
#define QgsDebugMsgLevel(str, level)
QVector< int > QgsMeshFace
List of vertex indexes.
QPair< int, int > QgsMeshEdge
Edge is a straight line seqment between 2 points.
#define INVALID_MESHLAYER_TIME
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS
Setting options for creating vector data providers.
Setting options for loading mesh layers.
QgsCoordinateTransformContext transformContext
Coordinate transform context.
bool loadDefaultStyle
Set to true if the default layer style should be loaded.
bool skipCrsValidation
Controls whether the layer is allowed to have an invalid/unknown CRS.
Mesh - vertices, edges and faces.
ElementType
Defines type of mesh elements.