cmd=testSegCircleIntPts
cx=0 cy=0 cr=14 x1=-15 y1=5 x2=100 y2=6 # num_pts=2
cx=0 cy=0 cr=14 x1=-10 y1=5 x2=100 y2=6 # num_pts=1

cx=0 cy=0 cr=14 x1=-15 y1=5 x2=100 y2=5 # num_pts=2
cx=0 cy=0 cr=14 x1=-10 y1=5 x2=100 y2=5 # num_pts=1

cx=0 cy=0 cr=14 x1=-10 y1=5 x2=100 y2=5.00001 # num_pts=1