diff --git a/SH3D/object/coordtable/coord.cpp b/SH3D/object/coordtable/coord.cpp
index c230469..4a41eb2 100644
--- a/SH3D/object/coordtable/coord.cpp
+++ b/SH3D/object/coordtable/coord.cpp
@@ -5,7 +5,7 @@ bool operator==(Coord const& a, Coord const& b)
 bool operator!=(Coord const& a, Coord const& b)
 {return !(a==b);}
 
-Coord::Coord() : x(0), y(0), z(0)
+Coord::Coord() : x(0), y(0), z(0), nx(0), ny(0), nz(0), m_lastFrame(-1)
 {}
 
 Coord::Coord(const Coord& coord)
@@ -13,6 +13,7 @@ Coord::Coord(const Coord& coord)
 	x=coord.x;
 	y=coord.y;
 	z=coord.z;
+    m_lastFrame=coord.m_lastFrame;
 }
 
 Coord& Coord::operator=(const Coord& a)
@@ -26,4 +27,20 @@ Coord operator+(Coord const& a, Coord const& b)
 	Coord copie(a);
 	copie+=b;
 	return copie;
-}
\ No newline at end of file
+}
+
+void Coord::calc()
+{
+    if (Userview::getFrame()==m_lastFrame)
+      return;
+    m_lastFrame=Userview::getFrame();
+  
+    // todo fonction de translation despoints
+}
+
+  
+  
+  
+  
+  
+  
\ No newline at end of file