def addElement(self):
event = GrowthEvent(self)
self.notifyBeforeAddingElement(event)
element = self.newElement()
self.elts.append(element)
angle = Math.toDegrees(math.atan2(element.z.imag, element.z.real))
if (angle < 0.0):
angle = angle + 360.0
self.angles.append(angle)
if (len(self.angles) > 1):
divergence = angle - self.angles[-2]
if divergence < 0.0:
divergence = divergence + 360.0
self.divergences.append(divergence)
self.notifyAfterAddingElement(event)
