On 6 March 2010 09:15, Ian Turton wrote: > It is *not* common in real geography (especially in the US) where we > tend to use a localised projection and WGS84 lat/lon. None of the > projections I (or my students) use is UTM, >
America always has to be different :) In Australia UTM is most commonly used but, of course, there is still plenty of room for confusion. Most of the field data in the organization that I work for were collected using UTM coordinates, but Australia swapped geodetic datums a few years ago so we have some data referenced to the AGD66 datum and some to GDA94 (and some where we just don't know). Also, when field use of GPS became common (showing my age here :) most people didn't know anything about geodesy so there are datasets recorded with old UTM coordinates (Australian Map Grid) but the GPS was probably running with WGS84. In short, it's a mess and converting these data between UTM and Lat-Lon using generic methods is hardly reliable. All that being said, I still think the general points that David (and others) makes about ease of use with GeoTools code are important to note. Michael ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
