def distanceFrom(self,other):
if self.pos:
try:
if type(other) is Transformer: #if transformer, return the smallest distance from all elements in the transformer.
return other.distanceFrom(self)
elif type(other) is Branch: #if the other is a line,
return DC.lineToLine(self.pos, other.pos)[0]
else:
return DC.pointToLine(self.pos, other.getPos())[0]
except NoneType:
return None
else:
return None
