anchor.diff:  FK6,280700,682600,56.02149,-3.91423,Stoneywood,Falkirk,Scotland,SCT,Scotland
   FK7,280800,691000,56.09695,-3.91636,,Stirling,Scotland,SCT,Scotland
   FK8,272600,695000,56.13075,-4.05001,,Stirling,Scotland,SCT,Scotland
  -FK9,279500,696100,56.14242,-3.93955,Bridge Of Allan,Stirling,Scotland,SCT,Scotland
  +FK9,279500,696100,56.14242,-3.93955,Bridge of Allan,Stirling,Scotland,SCT,Scotland
   FY1,331200,436000,53.81551,-3.04509,,Blackpool,North West England,ENG,England
   FY2,331700,439300,53.84524,-3.03823,,Blackpool,North West England,ENG,England
   FY3,332800,436600,53.82111,-3.02092,,Blackpool,North West England,ENG,England
  
positive.code: PH21,277500,801500,57.08834,-4.02169,,Highland,Scotland,SCT,Scotland
  PH22,290900,813400,57.19857,-3.80587,Aviemore,Highland,Scotland,SCT,Scotland
  PH23,291500,823300,57.28761,-3.80028,,Highland,Scotland,SCT,Scotland
  PH24,294500,819500,57.25419,-3.74891,Boat Of Garten,Highland,Scotland,SCT,Scotland
  PH25,300700,820200,57.26187,-3.64646,Nethy Bridge,Highland,Scotland,SCT,Scotland
  PH26,303400,827700,57.3298,-3.60464,Grantown-on-Spey,Highland,Scotland,SCT,Scotland
  PH3,294600,713500,56.30228,-3.70355,Auchterarder,Perth and Kinross,Scotland,SCT,Scotland
  
negative.code: PO21,491900,99100,50.78362,-0.69622,Aldwick,West Sussex,South East England,ENG,England
  PO22,495300,100800,50.79835,-0.64756,Felpham,West Sussex,South East England,ENG,England
  PO3,466300,102300,50.81589,-1.05877,,Portsmouth,South East England,ENG,England
  PO30,448500,88200,50.69085,-1.3133,Newport,Isle of Wight,South East England,ENG,England
  PO31,449000,95100,50.75286,-1.30531,Cowes,Isle of Wight,South East England,ENG,England
  PO32,450800,94900,50.75091,-1.27982,Newport,Isle of Wight,South East England,ENG,England
  PO33,458600,91700,50.72139,-1.16976,Newport,Isle of Wight,South East England,ENG,England
  PO34,462700,91100,50.71557,-1.11178,Nettlestone,Isle of Wight,South East England,ENG,England
  PO35,464700,87900,50.68657,-1.08401,Bembridge,Isle of Wight,South East England,ENG,England
  PO36,459200,84600,50.65748,-1.1624,Sandown,Isle of Wight,South East England,ENG,England
  PO37,458200,81700,50.63151,-1.177,Shanklin,Isle of Wight,South East England,ENG,England
  PO38,453700,78600,50.60406,-1.24108,Ventnor,Isle of Wight,South East England,ENG,England
  PO39,432600,86900,50.68027,-1.53853,Totland,Isle of Wight,South East England,ENG,England
  PO4,466100,99400,50.78983,-1.06213,,Portsmouth,South East England,ENG,England
  PO40,433900,87100,50.68199,-1.52011,Freshwater,Isle of Wight,South East England,ENG,England
  PO41,436900,89100,50.69979,-1.47744,Yarmouth,Isle of Wight,South East England,ENG,England
  PO5,464500,99200,50.78821,-1.08486,,Portsmouth,South East England,ENG,England
  PO6,465600,105600,50.84564,-1.06811,,Portsmouth,South East England,ENG,England
  PO7,467700,109700,50.88227,-1.03753,Southwick,Hampshire,South East England,ENG,England
  