def __init__(self, ell, m):
        self.setEll(ell)
        self.setM(m)
Extracts routing from the the 'routing' SVG layers of each PCB layer.
dataset/ETHPy150Open charanpald/APGL/apgl/generator/BarabasiAlbertGenerator.py/BarabasiAlbertGenerator.__init__--crossover with--dataset/ETHPy150Open boldport/pcbmode/pcbmode/utils/extract.py/extractRouting