Move to_vectors to Points

networks/geometry/Polyline.py

@@ -1,5 +1,4 @@
 from networks.geometry.Point2D import Point2D
-from networks.geometry.point_tools import coordinates_to_vectors
 
 from math import sqrt, inf
 import numpy as np
@@ -19,7 +18,7 @@ class Polyline:
 
         >>> Polyline((Point2D(0, 0), Point2D(0, 10), Point2D(50, 10), Point2D(20, 20)))
         """
-        self.points = coordinates_to_vectors(points)
+        self.points = Point2D.to_vectors(points)
         self.length_polyline = len(points)
 
         if self.length_polyline < 4:
@@ -37,6 +36,9 @@ class Polyline:
 
         self._alpha_assign(0, self.length_polyline-1)
 
+    def __repr__(self):
+        return str(self.alpha_radii)
+
     def _alpha_assign(self, start_index: int, end_index: int):
         """
         The alpha-assign procedure assigning radii based on a polyline.