text: # -*-- coding: utf-8 -*
  from numpy import angle, exp
  
  from pyleecan.Classes.Arc1 import Arc1
  from pyleecan.Classes.Segment import Segment
  
  
  def get_lines(self):
      """return the list of lines that delimits the PolarArc
  
      Parameters
      ----------
      self : PolarArc
          a PolarArc object
  
      Returns
      -------
      line_list: list
          List of line need to draw the slot (2 Segment + 2 Arc1)
      """
      # check if the PolarArc is correct
      self.check()
  
      Z_ref = self.point_ref
      center = Z_ref * exp(-1j * angle(Z_ref))
      H = self.height
      A = self.angle
      # the points of the PolarArc
      Z2 = (center - (H / 2)) * exp(1j * (-(A / 2))) * exp(1j * angle(Z_ref))
      Z3 = (center + (H / 2)) * exp(1j * (-(A / 2))) * exp(1j * angle(Z_ref))
      Z4 = (center + (H / 2)) * exp(1j * (A / 2)) * exp(1j * angle(Z_ref))
      Z1 = (center - (H / 2)) * exp(1j * (A / 2)) * exp(1j * angle(Z_ref))
  
      # Lines that delimit the PolarArc
      line1 = Arc1(Z1, Z2, -abs(Z1), is_trigo_direction=False)
      line2 = Segment(Z2, Z3)
      line3 = Arc1(Z3, Z4, abs(Z3))
      line4 = Segment(Z4, Z1)
  
      return [line1, line2, line3, line4]
  