1 files changed, 16 insertions, 2 deletions
diff --git a/path/point.ml b/path/point.ml
index d49d655..4c34899 100755
--- a/path/point.ml
+++ b/path/point.ml
@@ -1,8 +1,11 @@
+let internal_id = ref 0
+
 type t =
   { p: Gg.v2
   ; size : float
   ; angle: float
   ; stamp : float
+  ; id : int
   }
 
 let empty =
@@ -10,17 +13,23 @@ let empty =
   ; size = 0.
   ; angle = 0.
   ; stamp = 0.
+  ; id = 0
   }
 
 let create ~angle ~width ~stamp ~x ~y =
+
+  incr internal_id;
   { p = Gg.V2.v x y
   ; size = width
   ; angle = Gg.Float.rad_of_deg (180. -. angle )
   ; stamp
+  ; id = !internal_id
   }
 
 let copy point p =
-  { point with p }
+  { point with
+    p
+  }
 
 let set_angle p angle =
   { p with angle = Gg.Float.rad_of_deg (180. -. angle) }
@@ -49,6 +58,7 @@ let get_coord'
 let mix
   : float -> Gg.v2 -> t -> t -> t
   = fun f point p0 p1 ->
+    incr internal_id;
     let angle0 = p0.angle
     and angle1 = p1.angle
     and width0 = get_width p0
@@ -61,4 +71,8 @@ let mix
     { p = point
     ; size = width
     ; angle
-    ; stamp }
+    ; stamp
+    ; id = !internal_id
+    }
+
+let id { id; _} = id