Yes, it definitely looks like PROJ4. I wonder whether they use the same SRIDs as PostGIS? If not, that's yet another set of magic CRS number... sigh.
This is good from the point of view of Proj4J - the more projects that use PROJ4, the more reason there is to stay close to that codeline with a Java lib. Rahkonen Jukka wrote: > Hi, > > I would guess it is Proj4. And the table structure looks the same than in > PostGIS and transform queries behave in a similar way. > > http://www.gaia-gis.it/spatialite/spatialite-tutorial-2.3.1.html#t5 > > -Jukka- > > > -----Alkuperäinen viesti----- > Lähettäjä: Martin Davis [mailto:mbda...@refractions.net] > Lähetetty: ke 3.2.2010 18:38 > Vastaanottaja: OpenJump develop and use > Aihe: Re: [JPP-Devel] Proj4j - Martin steps ahead > > 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
