Cogo mag var error

zululuxzululux Global Mapper UserPosts: 39Trusted User
edited October 2014 in Projection Questions
Hello all,I am trying to do a COGO centred on an existing point. The Projection is -35S, Datum WGS 84. When I attempt to execute the COGO fom the point regardless of whether the measuring tool is set to Tryu or MAG North; it's always 23 deg off.I don't know what else to to. I know though that the average MAG VAR is 23 deg West in South Africa; and I suspect that it is somehow adding the MAG VAR to the desired COGO Bearing. Any input would be appreciated. I'm running version 4.2; and this has never happened before.Regards,Zululux


  • zululuxzululux Global Mapper User Posts: 39Trusted User
    edited October 2014
    ..Correction, I'm running version 14.2
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