Hi my suggestion is: 1) Import the data into postgis. 2) Create a view and adjust the offsets by using the ST_Translate [1] and random() [2] functions, eg:
select st_translate(wkb_geometry, random()*30, random()*30) from your_table This will translate the geometry with some pseudo randomized values (from 0 to 30). 3) Publish the view in GeoServer. [1]: http://postgis.refractions.net/documentation/manual-1.5/ST_Translate.html [2]: http://www.postgresql.org/docs/8.2/interactive/functions-math.html regards Stefan mit freundlichem Gruss Stefan Ziegler ----- Originalnachricht ----- Von: lv <[email protected]> Gesendet: Mit, 27.10.2010 12:27 An: [email protected] Betreff: [Geoserver-devel] How to change GIS data before publishing map I need to change the Geoserver source code to offset data before the map can be published on the web browser. My customer does not want to disclose precise GIS data and maps to the developers who are not on client site. My customer gives me a jar file which can randomly create data for offsetting. I can get these random data. What should I do is as follow: 1, I need to get data from database (Oracle or PostGIS). 2, get data from the jar file to offset all GIS data in the map. For example, 30% points of these data should be moved to south 100m. 30% points should be moved to north 10m. The rest of points should be moved to east 25m. 3, After getting data from step 2, Geoserver can create new maps that all points are not at their original place. 4, I use SLD (SLD with parameters) to offset maps but this solution is not acceptable. How to modify the source code of Geoserver 2.0.1? ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev_______________________________________________ Geoserver-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-devel ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ Geoserver-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-devel
