Hi, One reason is historical, OpenJUMP used to be totally unaware of projections and unable to do coordinate transformations until December 18, 2014 https://groups.google.com/forum/#!topic/openjump-users/IsoeEb5z3m4. Even OpenJUMP Plus now can transform vector data is still can't warp raster data which means that projects with rasters can't even theoretically support OTF.
I think that it is not only bad to miss on the fly transformation. Quick search from the QGIS issue tracker found about 90 issues with "OTF" or "on the fly". Most of them are corrected, but I am sure that we would have similar problems with OpenJUMP if users could edit on the fly transformed data, snap edited data to on the fly transformed layers, measure lengths and areas etc. But I do know that OTF is very nice and handy if there is a need to use different projections frequently. I clarify that the workflow I that I have doubts for is to open data that is natively in, let's say EPSG:4326, convert it OTF into something like EPSG:3067, and after edits, save data back to EPSG:4326 pushed through the OTF process once again. -Jukka Rahkonen- manf...@egger-gis.at wrote: Hi Michaël, why do you not use "on the fly transformation"? Is there a special reason? I developed this year a little Java-Tool to find and define a shapefiles projected coordinate system with geographic names automatically. I used GeoTools 2.7.0. and Netbeans IDE. Maybe i will try to develop a plugin for OPENJUMP. It would help users to use your transformation tool. At FOSS4G 2016 in Bonn it will be presented. Manfred Egger Web: http://egger-gis.at -----Original Message----- From: "Michaël Michaud" <m.michael.mich...@orange.fr> Sent: Saturday, June 25, 2016 7:13am To: jump-pilot-devel@lists.sourceforge.net Subject: Re: [JPP-Devel] on the fly transformation ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape_______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel Hi Manfred, You're right. There is no "on the fly transformation" in OpenJUMP. There is a coordinate transformation tool, but it's up to the user to define if he wants to transform the dataset or not. Michaël Le 25/06/2016 à 08:40, manf...@egger-gis.at a écrit : > Hello, > > i added Shapefiles in different coordinate systems with .prj files. > > Is there no automatic "on the fly transformation" in OPEN JUMP GIS? > > > Best regards, > > Manfred Egger > > Web: http://egger-gis.at > > > ---------------------------------------------------------------------- > -------- Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T > Park in San Francisco, CA to explore cutting-edge tech and listen to > tech luminaries present their vision of the future. This family event > has something for everyone, including kids. Get more information and > register today. > http://sdm.link/attshape > > > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
