Re: [R-sig-Geo] Conversion of points from AGD66 to WGS84?

2012-04-03 Thread Michael Sumner
As far as I know, the EPSG 4202 init form is not sufficient, and you need to specify the datum parameters explicitly. Wherever in the database "aust_SA" is defined it is not getting the actual parameters for some reason - I don't know if that requires an install/build configuration, but I've just

[R-sig-Geo] Conversion of points from AGD66 to WGS84?

2012-04-03 Thread ADAM PETER CARDILINI
Dear All, I have a dataset of lon/lat coordinates with about two thirds in datum AGD66/84 and the other third in datum WGS84. From what I have read I think there is about a 200m different between these datum. I want to change all of the AGD66 coordinates to be correct in WGS84 to fix this diffe