QgsLabelPosition(QgsFeatureId id, double r, const QVector< QgsPointXY > &corners, const QgsRectangle &rect, double w, double h, const QString &layer, const QString &labeltext, const QFont &labelfont, bool upside_down, bool diagram=false, bool pinned=false, const QString &providerId=QString(), const QgsGeometry &labelGeometry=QgsGeometry(), bool isUnplaced=false)
Constructor for QgsLabelPosition.