Hi,
In FME/Data Interop, the intersectors/topology operations have *no tolerance*, which means that they operate using exact math, which means that they will work just fine with decimal degrees on the coordinates. Now, the intersections will be computed directly on lat/long values, not in any way considering that they earth is round. In local areas I don't think this should matter much, but if you were intersecting lines that covered large areas and were concerned about the effect of the curvature of the earth, maybe it would be better to project. But this has never come up before. Anyone out there have any further ideas on this? Interesting question. Dale ---------------------------------------------------------------------- Dale Lutz Safe Software Inc. [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> VP Development Surrey, BC, CANADA phone: (604) 501-9985 http://www.safe.com <http://www.safe.com> fax: (604) 501-9965 ----------------------------------------------------------------------
