To Sun, The short answer is no, geotools does not support NTV2 (or 1). If it did, the math transform would be in the referencing module, beside the NADCON transform (a similar NAD27 to NAD83 datum shift method used in the USA).
http://geotools.org/javadocs/org/geotools/referencing/operation/transform/NADCONTransform.html I looked into adding NTV2 many years ago (there may even be an email on the devel list about it somewhere), but while the people at Natural Resources Canada were very helpful, they were not at that time setup to license to an open source project. I think there is a fee to license the NTV2 files (which you are then allowed to distribute), and various agreements need to be signed to guarantee to them that your implementation is correct. Now that Geotools is under the OSGeo Foundation, getting this licensing sorted out should be much easier. Rueben On Mon, 2009-11-23 at 07:45 -0800, Li Sun wrote: > Hi, > does anybody know if geotools 2.3.2 or above support NTV1 and NTV2?I > couldn't find information about this. If it supports then which > classes are needed? > > > Thanks, > > > > Sun > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
