diff --git a/src/draw_shds.h b/src/draw_shds.h
index 186d121e1acaf9e0af3f077bf5c87cd2ae30911a..0b83c89d80898af306c8191912a819a40645932b 100644
--- a/src/draw_shds.h
+++ b/src/draw_shds.h
@@ -306,8 +306,6 @@ protected:
     {
       m_shds.move_to_next(m_cur_she);
       displayMessage(QString("Cur halfedge move by next."));
-      std::cout<<"Dart: "<<m_shds.point(m_cur_she)<<", "
-          <<m_shds.point(m_shds.opposite(m_cur_she))<<std::endl;
       compute_elements();
       redraw();
     }
@@ -315,16 +313,12 @@ protected:
     {
       m_shds.move_to_previous(m_cur_she);
       displayMessage(QString("Cur halfedge move by previous."));
-      std::cout<<"Dart: "<<m_shds.point(m_cur_she)<<", "
-              <<m_shds.point(m_shds.opposite(m_cur_she))<<std::endl;
       compute_elements();
       redraw();
     }
     else if ((e->key()==::Qt::Key_D) && (modifiers==::Qt::ShiftModifier))
     {
       m_shds.move_to_opposite(m_cur_she);
-      std::cout<<"Dart: "<<m_shds.point(m_cur_she)<<", "
-              <<m_shds.point(m_shds.opposite(m_cur_she))<<std::endl;
       displayMessage(QString("Cur halfedge move by opposite."));
       compute_elements();
       redraw();