Hi Matthias, Thanks a lot for your report, Seems you did a good job for OpenJUMP promotion.
About point 5 I see different approaches : 1) define the link and load the joined data 2) define a link and read the joined data through a dynamic link (means also dynamic featureschema) 3) load the data and join the layers inside OpenJUMP 1 : that's what our "join TXT table" plugin already does, in a very basic way. I can see several improvements like : - accept other formats (excel would be a good candidate, jdbc another one) - accept 1:n relations : not very difficult if we just want to duplicate features every time they match a table record another option can be to aggregate attributes from external table 2 : creating dynamic link to an external datasource is probably not the simplest task. 3 : if you can load data first, performing the join inside OJ can be done with the matching plugin To an attribute table OpenJUMP will need to add a geometry. This can easily be done from a text file 0, 0, building, owner or from a postgis database SELECT ST_Point(0.0, 0.0), building, owner from ownerTable Matching plugin can do purely semantic join (set geometric criteria to "match all") You can aggregate several owners on each building, it will appear as owners=[owner1, owner2, owner3] Michaël > Hi, > > here comes my small report from the german FOSSGIS conference in Dessau. > > 1. Some people had the feeling that OJ was dead. These doubts I could > eliminate :-) We make not the big, spectacular steps in development, but > OJ is alive. One consequence can be, that we make more and better > marketing for our "baby". > > 2. There was some questions about the WFS support in OJ. Especially the > "T" letter will be more and more important for the users. I hope I have > said nothing wrong, that the plugin have WFS-T support. At least that is > on the wiki page. > > 3. A few users gave me the confirmation that a german website especially > for the german speaking people is a good thing. On the www.openjump.de > website you can see a photo from the OJ booth. > > 4. As you can see I had a rollup and flyers. If anyone need flyers or > the rollup for a presentation, I can send him that. But both things are > in german! > > 5. One question I couldn't answer. Is there a possibility to make a > "Join" from an attribute to some external data? In the ArcGIS this is > possible (but i have never seen any Arc produkt). For examle you have a > shape file with a ID attribute column. This ID's are unique. And on the > other side you have a CSV or Excel file with some metadata for the > geometries in that shape file. In the external metadata file you have > the same ID's to join both. But this is a 1:n relation! As an example > you can imagine that you have a shape file with some buildings. Now you > get a CSV/Excel file with the owners of this buildings from a external > provider and you need to view or query all the owners for every building > in the map. There is no problem to convert this metadata in some other > formats or databases. But I see the problem to represent multiple > metadata for one geometry. Any idea????? > > 6. And finally i met Sascha and Björn from the Intevation company. We > had talked about some OJ stuff and possible or desirable works in the > future. Such as improvements in the rendering or a integrated print > function. > > Regards > > Matthias > > > > ------------------------------------------------------------------------------ > For Developers, A Lot Can Happen In A Second. > Boundary is the first to Know...and Tell You. > Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! > http://p.sf.net/sfu/Boundary-d2dvs2 > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
