survey thesis_mine centreline extend start F9 data normal from to tape compass clino F2 F1 5.84 173 +2 F2 F3 4.86 233 +16 F4 F3 2.9 057 +9 F4 F5 7.89 309 -20 F6 F5 7.49 135 -3 F6 F7 2.75 249 +8 F8 F7 25.24 164 +2 F8 F9 3.95 068 +10 data dimensions station left right up down F1 .5 .3 1 0 F2 3.2 1.7 3.9 1.16 F4 3 .6 1.2 .5 F6 1.9 3.5 3.8 1.7 endcentreline endsurvey input thesis_mine.th2