def save(line):
if len(line.points) <= 2:
raise Exception("length of input or reference is below 3. Scale-Matching lines of size <3 is not possible.")
# only use dbline if to be committed by session/stored or retrieved from db
tobesaved = DBLine.from_numpy_array(line.to_numpy_array())
tobesaved.store()
log.info("created line id %d" % (tobesaved.id))
return tobesaved.id
