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1 files changed, 21 insertions, 0 deletions

diff --git a/tools/utils.mli b/tools/utils.mli
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+(** Return a normalize angle *)
+val norm_angle 
+  : Gg.v2 -> float
+
+(** return the interesction for two segments *)
+val intersection
+  : (Gg.v2 * Gg.v2) -> (Gg.v2 * Gg.v2) -> Gg.v2 option
+
+(** Return the center of the cercle for three points  
+    None if the point cannot be evaluated
+*)
+val center
+  : Gg.v2 -> Gg.v2 -> Gg.v2 -> Gg.v2 option
+
+(** Rotate the vector by the given angle *)
+val rotate
+  : Gg.v2 -> float -> Gg.v2
+
+(** Test equality between two points *)
+val equal_point
+  : float -> Gg.v2 -> Gg.v2 -> bool