work on norm matrix

[moebius3.git] / moebius.py

diff --git a/moebius.py b/moebius.py
index d9e452d4d70105da8b537106ddc984bd2830fd45..3cea68d4f6c2b2145dc89496077ac8a0e0a96f37 100644 (file)
--- a/moebius.py
+++ b/moebius.py
@@ -15,6 +15,9 @@ unit_x = np.array((1,0,0))
 unit_y = np.array((0,1,0))
 unit_z = np.array((0,0,1))
 
+def unit_v(v):
+  return v / np.linalg.norm(v)
+
 class DoubleCubicBezier():
   def __init__(db, cp):
     single = BezierSegment(cp)