Don't select clipped points

Polyhedron/demo/Polyhedron/Plugins/PCA/Clipping_box_plugin.cpp

@@ -85,8 +85,6 @@ void Clipping_box_plugin::init(QMainWindow* mainWindow, CGAL::Three::Scene_inter
   connect(dock_widget->pushButton, SIGNAL(toggled(bool)),
           this, SLOT(clip(bool)));
   
-  CGAL::QGLViewer* viewer = *CGAL::QGLViewer::QGLViewerPool().begin();  
-  
   item = NULL;
   visualizer = NULL;
   shift_pressing = false;
@@ -126,7 +124,6 @@ void Clipping_box_plugin::clipbox()
           this, &Clipping_box_plugin::tab_change);
   item->setName("Clipping box");
   item->setRenderingMode(FlatPlusEdges);
-  CGAL::QGLViewer* viewer = *CGAL::QGLViewer::QGLViewerPool().begin();
   scene->addItem(item);
   actionClipbox->setEnabled(false);
 

Polyhedron/demo/Polyhedron/Plugins/Point_set/Point_set_selection_plugin.cpp

@@ -568,6 +568,31 @@ protected:
   }
 
 protected Q_SLOTS:
+
+  bool is_inside(QVector4D* box, const Kernel::Point_3& p)
+  {
+    if(!static_cast<CGAL::Three::Viewer_interface*>(CGAL::QGLViewer::QGLViewerPool().first())->isClipping()){
+      return true;
+    }
+    double x = p.x(),
+        y = p.y(),
+        z = p.z();
+
+      if(box[0][0]*x+box[0][1]*y+box[0][2]*z+box[0][3]>0)
+        return false;
+      if(box[1][0]*x+box[1][1]*y+box[1][2]*z+box[1][3]>0)
+        return false;
+      if(box[2][0]*x+box[2][1]*y+box[2][2]*z+box[2][3]>0)
+        return false;
+      if(box[3][0]*x+box[3][1]*y+box[3][2]*z+box[3][3]>0)
+        return false;
+      if(box[4][0]*x+box[4][1]*y+box[4][2]*z+box[4][3]>0)
+        return false;
+      if(box[5][0]*x+box[5][1]*y+box[5][2]*z+box[5][3]>0)
+        return false;
+      return true;
+  }
+  
   void select_points()
   {
     Scene_points_with_normal_item* point_set_item = getSelectedItem<Scene_points_with_normal_item>();
@@ -604,6 +629,15 @@ protected Q_SLOTS:
                        [&] (const Point_set::Index& idx) -> bool
                        { return !selected_bitmap[idx]; }));
     
+    QVector4D* clipbox = static_cast<CGAL::Three::Viewer_interface*>(viewer)->clipBox();
+       for(Point_set::iterator it = points->first_selected();
+           it != points->end();
+           ++it)
+       {
+         if(!is_inside(clipbox, points->point(*it)))
+           points->unselect(*it);
+       }
+       
     point_set_item->invalidateOpenGLBuffers();
     point_set_item->itemChanged();
   }

Polyhedron/demo/Polyhedron/Viewer.cpp

@@ -1683,5 +1683,15 @@ void Viewer::setGlPointSize(const GLfloat &p) { d->gl_point_size = p; }
 
 const GLfloat& Viewer::getGlPointSize() const { return d->gl_point_size; }
 
+QVector4D* Viewer::clipBox() const
+{
+  return d->clipbox;
+}
+
+bool Viewer::isClipping() const
+{
+  return d->clipping;
+}
+
 #include "Viewer.moc"
 

Polyhedron/demo/Polyhedron/Viewer.h

@@ -154,6 +154,8 @@ public:
    float total_pass()Q_DECL_OVERRIDE;
    const GLfloat& getGlPointSize()const Q_DECL_OVERRIDE;
    void setGlPointSize(const GLfloat& p) Q_DECL_OVERRIDE;
+   QVector4D* clipBox() const Q_DECL_OVERRIDE;
+   bool isClipping() const Q_DECL_OVERRIDE;
 }; // end class Viewer
 
 

Three/include/CGAL/Three/Viewer_interface.h

@@ -276,6 +276,8 @@ public:
   virtual int currentPass()const = 0;
   virtual bool isDepthWriting()const = 0;
   virtual QOpenGLFramebufferObject* depthPeelingFbo() = 0;
+  virtual QVector4D* clipBox() const =0;
+  virtual bool isClipping() const = 0;
 }; // end class Viewer_interface
 }
 }