# force-attach, single arc: when arc is added around P2, it collides with
# line so line is force-attached to P2 between P8 and P9
point_new P1  10 10  2 1
point_new P2  50 50  2 1
point_new P3  80 10  2 1



point_new P8  0  55  2 1
point_new P9  90 55  2 1



2net_new line 1 1  from P8 to P9
2net_new arc 1 1  from P1 ccw P2 to P3

#2net_del arc



