diff --git a/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_plugin.cpp b/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_plugin.cpp
index 672e4fb0f7a..d6025740c6a 100644
--- a/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_plugin.cpp
+++ b/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_plugin.cpp
@@ -5,19 +5,37 @@
 #include <QMessageBox>
 #include <QBitmap>
 #include <QTabBar>
+
 #include <CGAL/boost/graph/helpers.h>
 #include <CGAL/boost/graph/Euler_operations.h>
+
+#include <CGAL/subdivision_method_3.h>
+#include <CGAL/Kernel_traits.h>
+
+#include <CGAL/Polygon_mesh_processing/triangulate_hole.h>
+#include <CGAL/Polygon_mesh_processing/polygon_soup_to_polygon_mesh.h>
+
 #include <CGAL/Three/Scene_item.h>
 #include <CGAL/Three/Viewer_interface.h>
 #include <CGAL/Three/Polyhedron_demo_plugin_helper.h>
+#include <CGAL/Three/Three.h>
+
 #include "Scene_surface_mesh_item.h"
 #include "Scene_points_with_normal_item.h"
 #include "Scene_polylines_item.h"
-#include <CGAL/subdivision_method_3.h>
-#include <CGAL/Kernel_traits.h>
-#include <CGAL/Three/Three.h>
+
 #include "ui_Basic_generator_widget.h"
 
+struct Face : public std::array<int,3>
+{
+  Face(int i, int j, int k)
+  {
+    (*this)[0] = i;
+    (*this)[1] = j;
+    (*this)[2] = k;
+  }
+};
+
 class GeneratorWidget :
     public QDockWidget,
     public Ui::BasicGenerator
@@ -703,53 +721,85 @@ void Basic_generator_plugin::generateLines()
   }
   Q_FOREACH(QString s, list)
   {
-      if(!s.isEmpty())
+    if(!s.isEmpty())
+    {
+      double res = s.toDouble(&ok);
+      if(!ok)
       {
-          double res = s.toDouble(&ok);
-          if(!ok)
-          {
-              QMessageBox *msgBox = new QMessageBox;
-              msgBox->setWindowTitle("Error");
-              msgBox->setText("ERROR : Coordinates are invalid.");
-              msgBox->exec();
-              break;
-          }
-          else
-          {
-            coord[counter] = res;
-            counter++;
-          }
+        QMessageBox *msgBox = new QMessageBox;
+        msgBox->setWindowTitle("Error");
+        msgBox->setText("ERROR : Coordinates are invalid.");
+        msgBox->exec();
+        break;
       }
-      if(!dock_widget->polygon_checkBox->isChecked() && counter == 3)
+      else
       {
-          Scene_polylines_item::Point_3 p(coord[0], coord[1], coord[2]);
-          polyline.push_back(p);
-          counter =0;
-      }
-      else if(dock_widget->polygon_checkBox->isChecked() && counter == 2)
-      {
-          Scene_polylines_item::Point_3 p(coord[0], coord[1], 0);
-          polyline.push_back(p);
-          counter = 0;
+        coord[counter] = res;
+        counter++;
       }
+    }
+    if(!dock_widget->polygon_checkBox->isChecked() && counter == 3)
+    {
+      Scene_polylines_item::Point_3 p(coord[0], coord[1], coord[2]);
+      polyline.push_back(p);
+      counter =0;
+    }
+    else if(dock_widget->polygon_checkBox->isChecked() && counter == 2)
+    {
+      Scene_polylines_item::Point_3 p(coord[0], coord[1], 0);
+      polyline.push_back(p);
+      counter = 0;
+    }
   }
   if(dock_widget->polygon_checkBox->isChecked())
   {
     polyline.push_back(polyline.front()); //polygon_2 are not closed.
   }
-    if(ok)
+  if(ok)
+  {
+    dock_widget->line_textEdit->clear();
+    if(dock_widget->fill_checkBox->isChecked())
     {
-        dock_widget->line_textEdit->clear();
-        Scene_polylines_item* item = new Scene_polylines_item();
-        item->polylines = polylines;
-        item->invalidateOpenGLBuffers();
-        item->setName(dock_widget->name_lineEdit->text());
-        item->setColor(Qt::black);
-        item->setProperty("polylines metadata", polylines_metadata);
-        item->invalidateOpenGLBuffers();
-        Scene_interface::Item_id id = scene->addItem(item);
-        scene->setSelectedItem(id);
+      CGAL::Three::Three::CursorScopeGuard guard(Qt::WaitCursor);
+      QApplication::processEvents();
+      if(polyline.front() != polyline.back()) {
+        polyline.push_back(polyline.front());
+      }
+      if(polyline.size() < 4) { // no triangle, skip it (needs at least 3 + 1 repeat)
+        QMessageBox::warning(mw, "Warning", "Needs at least 3 points to triangulate. Aborting.");
+        return;
+      }
+      std::vector<Face> patch;
+      CGAL::Polygon_mesh_processing::triangulate_hole_polyline(polyline,
+                                                               std::back_inserter(patch),
+                                                               CGAL::Polygon_mesh_processing::parameters::use_delaunay_triangulation(true));
+
+      if(patch.empty()) {
+          QMessageBox::warning(mw, "Warning", "Triangulation failed.");
+          return;
+      }
+      SMesh* poly = new SMesh;
+      CGAL::Polygon_mesh_processing::polygon_soup_to_polygon_mesh(polyline,
+                                                                  patch,
+                                                                  *poly);
+
+      Scene_surface_mesh_item* poly_item = new Scene_surface_mesh_item(poly);
+      poly_item->setName(dock_widget->name_lineEdit->text());
+      poly_item->setRenderingMode(FlatPlusEdges);
+      scene->setSelectedItem(scene->addItem(poly_item));
     }
+    else
+    {
+      Scene_polylines_item* item = new Scene_polylines_item();
+      item->polylines = polylines;
+      item->invalidateOpenGLBuffers();
+      item->setName(dock_widget->name_lineEdit->text());
+      item->setColor(Qt::black);
+      item->setProperty("polylines metadata", polylines_metadata);
+      Scene_interface::Item_id id = scene->addItem(item);
+      scene->setSelectedItem(id);
+    }
+  }
 }
 
 struct Point_generator
diff --git a/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_widget.ui b/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_widget.ui
index 865622d53a5..5d276e0149d 100644
--- a/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_widget.ui
+++ b/Polyhedron/demo/Polyhedron/Plugins/PCA/Basic_generator_widget.ui
@@ -18,7 +18,7 @@
     <item>
      <widget class="QTabWidget" name="selector_tabWidget">
       <property name="currentIndex">
-       <number>2</number>
+       <number>0</number>
       </property>
       <widget class="QWidget" name="prismTab">
        <attribute name="title">
@@ -31,7 +31,7 @@
            <string/>
           </property>
           <property name="pixmap">
-           <pixmap>:/cgal/Polyhedron_3/resources/prism.png</pixmap>
+           <pixmap resource="../../Polyhedron_3.qrc">:/cgal/Polyhedron_3/resources/prism.png</pixmap>
           </property>
           <property name="scaledContents">
            <bool>false</bool>
@@ -223,7 +223,7 @@ QGroupBox::title {
            <string/>
           </property>
           <property name="pixmap">
-           <pixmap>:/cgal/Polyhedron_3/resources/icosphere.png</pixmap>
+           <pixmap resource="../../Polyhedron_3.qrc">:/cgal/Polyhedron_3/resources/icosphere.png</pixmap>
           </property>
          </widget>
         </item>
@@ -540,7 +540,7 @@ QGroupBox::title {
              <string/>
             </property>
             <property name="pixmap">
-             <pixmap>:/cgal/Polyhedron_3/resources/hexahedron.png</pixmap>
+             <pixmap resource="../../Polyhedron_3.qrc">:/cgal/Polyhedron_3/resources/hexahedron.png</pixmap>
             </property>
             <property name="scaledContents">
              <bool>false</bool>
@@ -750,7 +750,7 @@ QGroupBox::title {
            <string/>
           </property>
           <property name="pixmap">
-           <pixmap>:/cgal/Polyhedron_3/resources/tetrahedron.png</pixmap>
+           <pixmap resource="../../Polyhedron_3.qrc">:/cgal/Polyhedron_3/resources/tetrahedron.png</pixmap>
           </property>
          </widget>
         </item>
@@ -881,7 +881,7 @@ QGroupBox::title {
              <string/>
             </property>
             <property name="pixmap">
-             <pixmap>:/cgal/Polyhedron_3/resources/grid.png</pixmap>
+             <pixmap resource="../../Polyhedron_3.qrc">:/cgal/Polyhedron_3/resources/grid.png</pixmap>
             </property>
            </widget>
           </item>
@@ -1050,7 +1050,7 @@ QGroupBox::title {
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
 &lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Sans Serif'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
           </property>
           <property name="overwriteMode">
            <bool>false</bool>
@@ -1068,11 +1068,22 @@ p, li { white-space: pre-wrap; }
        </attribute>
        <layout class="QVBoxLayout" name="verticalLayout_6">
         <item>
-         <widget class="QCheckBox" name="polygon_checkBox">
-          <property name="text">
-           <string>From Polygon_2</string>
-          </property>
-         </widget>
+         <layout class="QHBoxLayout" name="horizontalLayout_23">
+          <item>
+           <widget class="QCheckBox" name="polygon_checkBox">
+            <property name="text">
+             <string>From Polygon_2</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="fill_checkBox">
+            <property name="text">
+             <string>Triangulate</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
         </item>
         <item>
          <widget class="QTextEdit" name="line_textEdit">
@@ -1087,7 +1098,7 @@ p, li { white-space: pre-wrap; }
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
 &lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Sans Serif'; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-size:10pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
           </property>
           <property name="overwriteMode">
            <bool>false</bool>
@@ -1172,6 +1183,9 @@ p, li { white-space: pre-wrap; }
    <header>CGAL_double_edit.h</header>
   </customwidget>
  </customwidgets>
- <resources/>
+ <resources>
+  <include location="../../Polyhedron_3.qrc"/>
+  <include location="../../Polyhedron_3.qrc"/>
+ </resources>
  <connections/>
 </ui>