T1

T2

T3

T4

实际位置

(0.3, 1.2)

(13.2, 6.4)

(36.8, 20.7)

(59.7, 69.5)

测量位置

(0.8, 0.9)

(12.5, 7.0)

(35.4, 20.5)

(60.2, 68.9)