void QgsMeshDatasetGroupTreeView::extractGroups() { // TODO replace with MDAL groups when introduced mGroups.clear(); if ( !mMeshLayer || !mMeshLayer->dataProvider() ) return; for ( int i = 0; i < mMeshLayer->dataProvider()->datasetCount(); ++i ) { const QgsMeshDatasetMetadata meta = mMeshLayer->dataProvider()->datasetMetadata( i ); QString name = meta.extraOptions()["name"]; if ( mGroups.constFind( name ) == mGroups.constEnd() ) { QVector<int> datasets; datasets.append( i ); mGroups[name] = datasets; } else { mGroups[name].append( i ); } } }