encoding  utf-8
survey BeyondZebraAven -title "East Passage BZA"

centreline
  # Export stations
  equate START         START@BZA_Pony

  # Join surveys
  equate 1.18@AwolAven1.AwolAven    1.18@BZA_DistoX
  equate 1.1@CrossRift2        61@BZA_Pony

  # Jan-2012 DistoX survey re-used some existing stations.  Let's try to tie them in.
  equate 1.19@BZA_DistoX     44@BZA_Pony
  equate 1.24@BZA_DistoX    39@BZA_Pony
  #equate 1.30@BZA_DistoX    24@BZA_Pony  # , an original station mark on South wall
  # - possibly 24@EP, except 24 is recorded as a North wall.  
  # - possibly D14@CL, but clino data suggests CL took high-level route.  Conundrum.  
  #let's try 25 and 28, whose vertical allignment and LRDUD agree.
  equate 1.28@BZA_DistoX    25@BZA_Pony  # , an original station mark on South wall
  equate 1.35@BZA_DistoX    20@BZA_Pony

  # Let's try to rescue something from the fauly BeyondZebraAven survey, but equating it to the Tim/Richard survey
  # Take a copy of the Tim/Richard survey from E12 to E32, and call it D12 to D32, and use that
  #equate D16@BZA_CL      42@BZA_Pony # approx Y-junction
  equate D21@BZA_CL           48@BZA_Pony # approx Tube to muddy crawl
  equate D26@BZA_CL           54@BZA_Pony # approx Tube sharp bend
  equate D32@BZA_CL           70@BZA_Pony # approx Tube sharp bend
  equate 60@BZA_Pony      1.0@CrossRift2 # Resurveyed existing stations.
endcentreline

  input BZA_Pony.th
  input BZA_DistoX.th
  input BZA_CL.th
  
  input CrossRift2/CrossRift2.th
  input CrossRift2/CrossRift2.th2

  input AWOLAven/AwolAven.th
  
  input BeyondZebraAven_s1_165.th2
  input BeyondZebraAven_s2_165.th2  # Liquid Mud Tube
  input BeyondZebraAven_s3.th2    # Crystal Pool Aven

  map BeyondZebraAven_map
    AwolAven_m1@AwolAven
    break
    BZA_m1
    LowerEastPassage_m1 [65 -40 m] below
  endmap

  map BZA_m1
    BeyondZebraAven_s3
    break
    BeyondZebraAven_s1
  endmap
  
  map LowerEastPassage_m1
    BeyondZebraAven_s2
    CrossRift2_s1
  endmap
endsurvey