I have GPS data at 1 point per second for several weeks in WGS84 latitude/longitude form. It was collected using a UBLOX GPS in 2015 in Australia (Zone 55s)
Would it be correct to use Redfearn's formula to project WGS84 data to Northings/Eastings? (normally it seems that Redfearn's formula is used with GDA94 rather than with WGS84)http://www.ga.gov.au/geodesy/datums/redfearn_geo_to_grid.jsp
http://www.ga.gov.au/scientific-top...odesy/geodetic-techniques/calculation-methods (excel spreadsheet halfway down page)
I would like to get Northings/Eastings in meters. (The data is only accurate to 2-5m at the moment but don't want to make it worse so would need to use conversion that is accurate to within a few cm).
I could just used the ArcPy projection but since there is 1 point per second it is very slow. Therefore I'd rather put the formula directly into python. I'll probably use ArcPy later to check the results are the same.
The data is collected on animal collars at the moment (in Zone 55s). Eventually they could be used anywhere in Australia (or possibly overseas) so I'd like to use a formula that could be transferable to another part of Australia, though that could involve user input about which zone they are in.
[I've also been investigating how to convert WGS84 (presumably = ITRF2008?) into GDA94 and then to MGA, but this seems very complicated and I think it may be simpler just to work in WGS84 UTM since I don't really need it for an official map.]
Thanks!
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Would it be correct to use Redfearn's formula to project WGS84 data to Northings/Eastings? (normally it seems that Redfearn's formula is used with GDA94 rather than with WGS84)http://www.ga.gov.au/geodesy/datums/redfearn_geo_to_grid.jsp
http://www.ga.gov.au/scientific-top...odesy/geodetic-techniques/calculation-methods (excel spreadsheet halfway down page)
I would like to get Northings/Eastings in meters. (The data is only accurate to 2-5m at the moment but don't want to make it worse so would need to use conversion that is accurate to within a few cm).
I could just used the ArcPy projection but since there is 1 point per second it is very slow. Therefore I'd rather put the formula directly into python. I'll probably use ArcPy later to check the results are the same.
The data is collected on animal collars at the moment (in Zone 55s). Eventually they could be used anywhere in Australia (or possibly overseas) so I'd like to use a formula that could be transferable to another part of Australia, though that could involve user input about which zone they are in.
[I've also been investigating how to convert WGS84 (presumably = ITRF2008?) into GDA94 and then to MGA, but this seems very complicated and I think it may be simpler just to work in WGS84 UTM since I don't really need it for an official map.]
Thanks!
أكثر...