diff --git a/GraphicsView/demo/Triangulation_2/Boolean_2.cpp b/GraphicsView/demo/Triangulation_2/Boolean_2.cpp
index b163eb14ad44..1b0c6c05d556 100644
--- a/GraphicsView/demo/Triangulation_2/Boolean_2.cpp
+++ b/GraphicsView/demo/Triangulation_2/Boolean_2.cpp
@@ -3,7 +3,7 @@
 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
 #include <CGAL/Polygon_2.h>
 #include <CGAL/point_generators_2.h>
-#include <CGAL/Triangulation_2/Boolean.h>
+#include <CGAL/Polygon_repair/Boolean.h>
 #include <boost/config.hpp>
 #include <boost/version.hpp>
 #include <CGAL/IO/WKT.h>
@@ -36,7 +36,7 @@ typedef CGAL::Polygon_2<K> Polygon2;
 typedef CGAL::Polygon_with_holes_2<K> Polygon_with_holes_2;
 typedef CGAL::Multipolygon_with_holes_2<K> Multipolygon_with_holes_2;
 
-typedef CGAL::Triangulations::Boolean<K> Boolean;
+typedef CGAL::Polygon_repair::Boolean<K> Boolean;
 typedef std::shared_ptr<Polygon2> PolygonPtr ;
 
 typedef std::vector<PolygonPtr> PolygonPtr_vector ;
@@ -211,6 +211,9 @@ MainWindow::on_actionClear_triggered()
 {
   pwhA.clear();
   mpwhA.clear();
+  pwhB.clear();
+  mpwhB.clear();
+  mpwhC.clear();
   clear();
   this->actionCreateInputPolygon->setChecked(true);
   Q_EMIT( changed());
diff --git a/Polygon_repair/examples/Polygon_repair/CMakeLists.txt b/Polygon_repair/examples/Polygon_repair/CMakeLists.txt
index 93722bb7c3ba..2f77af2afe7b 100644
--- a/Polygon_repair/examples/Polygon_repair/CMakeLists.txt
+++ b/Polygon_repair/examples/Polygon_repair/CMakeLists.txt
@@ -4,7 +4,7 @@
 cmake_minimum_required(VERSION 3.12...3.29)
 project(Polygon_repair_Examples)
 
-find_package(CGAL REQUIRED)
+find_package(CGAL  REQUIRED OPTIONAL_COMPONENTS Qt6)
 
 # create a target per cppfile
 file(
@@ -13,4 +13,9 @@ file(
   ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
 foreach(cppfile ${cppfiles})
   create_single_source_cgal_program("${cppfile}")
-endforeach()
\ No newline at end of file
+endforeach()
+
+
+if(CGAL_Qt6_FOUND)
+  target_link_libraries(repair_non_zero_polygon_2 PUBLIC CGAL::CGAL_Basic_viewer)
+endif()
diff --git a/Polygon_repair/examples/Polygon_repair/repair_non_zero_polygon_2.cpp b/Polygon_repair/examples/Polygon_repair/repair_non_zero_polygon_2.cpp
index 9856375f3e79..b87459e968d7 100644
--- a/Polygon_repair/examples/Polygon_repair/repair_non_zero_polygon_2.cpp
+++ b/Polygon_repair/examples/Polygon_repair/repair_non_zero_polygon_2.cpp
@@ -5,13 +5,13 @@
 #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
 #include <CGAL/Polygon_repair/repair.h>
 #include <CGAL/IO/WKT.h>
+#include <CGAL/draw_multipolygon_with_holes_2.h>
 
 using Kernel = CGAL::Exact_predicates_inexact_constructions_kernel;
 using Point_2 = Kernel::Point_2;
 using Polygon_2 = CGAL::Polygon_2<Kernel>;
 using Polygon_with_holes_2 = CGAL::Polygon_with_holes_2<Kernel>;
 using Multipolygon_with_holes_2 = CGAL::Multipolygon_with_holes_2<Kernel>;
-using Winding = CGAL::Polygon_repair::Winding<Kernel>;
 
 int main(int argc, char* argv[]) {
 
@@ -23,6 +23,8 @@ int main(int argc, char* argv[]) {
 
   Multipolygon_with_holes_2 mp = CGAL::Polygon_repair::repair(pin, CGAL::Polygon_repair::Non_zero_rule());
 
+  CGAL::draw(mp);
+
   if (mp.number_of_polygons_with_holes() > 1) {
     CGAL::IO::write_multi_polygon_WKT(std::cout, mp);
   } else {
diff --git a/Triangulation_2/include/CGAL/Triangulation_2/Boolean.h b/Polygon_repair/include/CGAL/Polygon_repair/Boolean.h
similarity index 97%
rename from Triangulation_2/include/CGAL/Triangulation_2/Boolean.h
rename to Polygon_repair/include/CGAL/Polygon_repair/Boolean.h
index 34215bd21202..b355bc6909ec 100644
--- a/Triangulation_2/include/CGAL/Triangulation_2/Boolean.h
+++ b/Polygon_repair/include/CGAL/Polygon_repair/Boolean.h
@@ -10,12 +10,10 @@
 //
 // Author(s)     : Andreas Fabri
 
-#ifndef CGAL_TRIANGULATION_2_BOOLEAN_H
-#define CGAL_TRIANGULATION_2_BOOLEAN_H
+#ifndef CGAL_POLYGON_REPAIR_BOOLEAN_H
+#define CGAL_POLYGON_REPAIR_BOOLEAN_H
 
-#include <CGAL/license/Triangulation_2.h>
-
-#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
+#include <CGAL/license/Polygon_repair.h>
 
 #include <CGAL/Polygon_with_holes_2.h>
 #include <CGAL/Multipolygon_with_holes_2.h>
@@ -31,7 +29,7 @@
 #include <boost/property_map/property_map.hpp>
 
 namespace CGAL {
-namespace Triangulations {
+namespace Polygon_repair {
 
 /*!
 \ingroup PkgTriangulation2Miscellaneous
@@ -404,7 +402,7 @@ access to the underlying constrained triangulation.
 };
 
 
-} // namespace Triangulations
+} // namespace Polygon_repair
 } //namespace CGAL
 
-#endif CGAL_TRIANGULATION_2_BOOLEAN_H
+#endif CGAL_POLYGON_REPAIR_BOOLEAN_H