purge + pep8

src/Model/Geometry/PointXYZ.py

@@ -229,6 +229,18 @@ class PointXYZ(Point, SQLSubModel):
         s = (a + b + c) / 2
         return (s*(s-a) * (s-b)*(s-c)) ** 0.5
 
+    def dist_from_seg(self, p1, p2):
+        a2 = pow(PointXYZ.distance(self, p1), 2)
+        b2 = pow(PointXYZ.distance(self, p2), 2)
+        c2 = pow(PointXYZ.distance(p1, p2), 2)
+        if c2 < 0.00000001:
+            # si les deux points sont confondus
+            d = 0.0
+        else:
+            d = np.sqrt(abs(a2 - pow((c2 - b2 + a2) / (2*np.sqrt(c2)), 2)))
+
+        return d
+
     def copy(self):
         p = PointXYZ(self.x,
                      self.y,