Sounds like we're all in agreement. @SS - JEQL now has Proj4J exposed for use. So this provides a command line tool that pretty much does what you're suggesting.
It's always nice for people to have a UI to use, though, so I'd still encourage one to be built in OJ. Stefan Steiniger wrote: > yep I agree here. > I would say OJ offers options for assigning projections and doing > transformations on a functional basis - i.e. no on the fly stuff? At > least this is the simple way to start with. > Though, we may think then about new measure tools. > > Sunburned Surveyor wrote: > >> I found the way UDig handled projections to be a nightmare. Never >> could get it to work right. Now I use FW Tools instead. I'd prefer to >> see projections handled on a per-instance basis. Let the user keep >> track of what projection each layer is in. That is likely something he >> is doing anyways. >> >> This approach will keep the code much simpler. >> >> I think even a stand-alone reprojection tool in Java packaged with >> OpenJUMP might even be the best way to go. >> >> Just my 2 cents. >> >> Landon >> >> On Wed, Feb 3, 2010 at 8:38 AM, Martin Davis <mbda...@refractions.net> wrote: >> >>> Jukka, >>> >>> Do you know what lib spatiallite uses for projections? Do you have a >>> reference to the doc for it? >>> >>> It seems like it would be nice to have projections built right in to >>> JUMP. Maybe Proj4J can meet this need, since it's fairly simple and >>> lightweight. >>> >>> People will need to think about how coordinate systems are exposed in >>> JUMP. Is it just a facility for one-time transformation, with all >>> params supplied by the user? The next level would keep CRS information >>> with each layer, and automatically reproject imported data. The ultimate >>> (maybe?) level might be to keep data internally in its native CRS and >>> reproject only for display and other purposes. I think this last might >>> be more complex than its worth, however. I know uDig spend a loooong >>> time getting this right, and it might still be problematic. >>> >>> By the way, something that's not currently in Proj4J is support for >>> mapping to/from the huge variety of CRS specification formats which are >>> out there. This is a large piece of work, and at this point I don't >>> know when or how it might be accomplished. >>> >>> Rahkonen Jukka wrote: >>> >>>> Hi, >>>> >>>> Projection support would be nice to have sometimes. By the way, the two >>>> new Spatialite plugins give now another alternatives. Spatialite >>>> databases which have been created with Spatialite-GUI contains support for >>>> more than 3000 projections by default. >>>> >>>> -Jukka- >>>> >>>> >>>> Stefan Steiniger wrote: >>>> >>>> >>>> So Guys - guess what: >>>> >>>> Martin revived Proj4j, i.e. Proj4 for Java >>>> >>>> http://lin-ear-th-inking.blogspot.com/2010/01/announcing-proj4j.html >>>> >>>> seems like we can start thinking about to seriously give OpenJUMP >>>> projection support (for those that don't use PostGIS - like me) ;) >>>> >>>> thank you Martin! >>>> >>>> stefan >>>> >>>> ------------------------------------------------------------------------------ >>>> The Planet: dedicated and managed hosting, cloud storage, colocation >>>> Stay online with enterprise data centers and the best network in the >>>> business >>>> Choose flexible plans and management services without long-term contracts >>>> Personal 24x7 support from experience hosting pros just a phone call away. >>>> http://p.sf.net/sfu/theplanet-com >>>> _______________________________________________ >>>> Jump-pilot-devel mailing list >>>> Jump-pilot-devel@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> The Planet: dedicated and managed hosting, cloud storage, colocation >>>> Stay online with enterprise data centers and the best network in the >>>> business >>>> Choose flexible plans and management services without long-term contracts >>>> Personal 24x7 support from experience hosting pros just a phone call away. >>>> http://p.sf.net/sfu/theplanet-com >>>> _______________________________________________ >>>> Jump-pilot-devel mailing list >>>> Jump-pilot-devel@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>>> >>>> >>>> >>> -- >>> Martin Davis >>> Senior Technical Architect >>> Refractions Research, Inc. >>> (250) 383-3022 >>> >>> >>> ------------------------------------------------------------------------------ >>> The Planet: dedicated and managed hosting, cloud storage, colocation >>> Stay online with enterprise data centers and the best network in the >>> business >>> Choose flexible plans and management services without long-term contracts >>> Personal 24x7 support from experience hosting pros just a phone call away. >>> http://p.sf.net/sfu/theplanet-com >>> _______________________________________________ >>> Jump-pilot-devel mailing list >>> Jump-pilot-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>> >>> >> ------------------------------------------------------------------------------ >> The Planet: dedicated and managed hosting, cloud storage, colocation >> Stay online with enterprise data centers and the best network in the business >> Choose flexible plans and management services without long-term contracts >> Personal 24x7 support from experience hosting pros just a phone call away. >> http://p.sf.net/sfu/theplanet-com >> _______________________________________________ >> Jump-pilot-devel mailing list >> Jump-pilot-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >> >> >> > > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > -- Martin Davis Senior Technical Architect Refractions Research, Inc. 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