Mayamatam 6.10

6.10

dakṣiṇottaragaṃ sūtramevaṃ sūtradvayaṃ nyaset
udagādyaparāntāni paryantāni vinikṣipet

is the north-south line; thus one should lay out the two cords.
One should stretch out the cords from the north to the south,