Complete Qt6 migration: full clean build green across groups G1-G12 incl. runtime plugin set

new_docker_build.sh gains Group 12 (212 GUI/Data plugins); fixes LtsUtilsGuiDds visibility (LTO-stripped exports), LtsProjectionWorkstation unity name shadow, 6 unity-off dirs (dup file-scope statics, ddsftc INTERFACE sources) and reconfigures BUILD_FILTERMANAGEMENT/BUILD_PLUGINS_SERVICEMONITOR=ON

qt6-after/qt6-migrated-legatus/Lts/Viewer/SituationMap/MapImpl/measurement_impl.h

@@ -0,0 +1,66 @@
+/**
+  * @RDE_HEADER@
+  * Interface-Implementation of DangerArea
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+// Own
+#include <Map/measurement.h> // Interface
+#include "map_impl.h"
+#include "Rubberbands/rubberband_multi_point_feature.h"
+
+// Qt
+
+
+//----------------------------------------------------------------------------
+namespace SituationMap
+{
+
+class MeasurementImpl : public QObject, public virtual Measurement
+{
+  Q_OBJECT
+
+public:
+  explicit MeasurementImpl(SituationMap::MapImpl *mapImpl);
+  virtual ~MeasurementImpl();
+
+  MeasurementImpl(const MeasurementImpl &other)     = delete;
+  MeasurementImpl &operator=(MeasurementImpl &other) = delete;
+
+  long measureLength() override;
+  void clear() override;
+
+  bool displayPolyline();
+  bool displayVertices();
+  bool displayTotalLength();
+  bool calculateLength(const QVector<Point3D> &mapCoords);
+
+protected Q_SLOTS:
+  void onRbAbort(RB::RubberbandBase *rbnd);
+  void onRbInterimResultsChanged(RB::RubberbandBase *rbnd);
+  void onRbApply(RB::RubberbandBase *rbnd);
+  void onCurrentCursorPositionChanged(const Point3D &mapCoord);
+
+private:
+  void init();
+  bool startRubberband();
+  RB::RubberbandMultiPointFeature *createRubberband();
+
+  LOGGER_T m_logger;      ///< Interface of the Logging-Facility
+
+  class Private;
+  /**
+      * The private d->pointer to not break BC when changing internals of this class
+     */
+  Private *d = nullptr;
+
+};
+
+
+
+} // namespace SituationMap
+