Hi Andrea, Thanks, for your response. I'm not a geo-expert and I'm not sure if I've understood you very well. The area in which I'm trying to reproject is in the same region in both SRS's. Does this mean something to you?
By the way, what does the parameter "towgs84" mean?? Maybe I'm in the need of getting a bit more info about SRS definitions. Where can I find it? Perhaps Looking for "proj4"? Thanks for your help. Regards, David Alda Fernández de Lecea GIS Analista Programadorea / Analista Programador GIS KONTSULTORIA UNITATEA / UNIDAD DE CONSULTORÍA Granja Modelo s/n 01192 Arkaute Araba T 945 003 295 F 945 003 290 [email protected] | www.hazi.es <http://www.hazi.es/> <outbind://1-0000000089BDA47B3F8B8846B5B3606C6570421B0700224DBDAF88A6AC47BD22432815351BE00000070EAA6C0000224DBDAF88A6AC47BD22432815351BE0000009174BC20000/cid:465104911@09022012-2A8E> <blocked::http://www.hazi.es/> ********************* LEGE OHARRA ******************* AVISO LEGAL ******************* DISCLAIMER ****************** Mezu hau pertsonala eta isilpekoa da eta baimenik gabeko erabilera debekatua dago legalki. Jasotzailea ez bazara ezabatu mezua, bidali eta kontserbatu gabe. Este mensaje es personal y confidencial y su uso no autorizado está prohibido legalmente. Si usted no es el destinatario, proceda a borrarlo, sin reenviarlo ni conservarlo. This message is personal and confidential, unauthorised use is legally prohibited. If you are not the intended recipient, delete it without resending or backing it. ________________________________ De: [email protected] [mailto:[email protected]] En nombre de Andrea Aime Enviado el: viernes, 10 de febrero de 2012 14:08 Para: David Alda Fernandez de Lezea CC: [email protected] Asunto: Re: [Geoserver-users] Problems regarding layer reprojection On Thu, Feb 9, 2012 at 2:43 PM, David Alda Fernandez de Lezea <[email protected]> wrote: Hi list, I know this may be an old topic but I really would like to solve this little problem. My case: My layer is stored in Oracle Spatial and it's native SRS is EPSG:23030. I set the declared SRS to EPSG:23030 and then I set Force to declared in SRS management selection list. In my WMS configuration I've set that the available SRS's are EPSG:23030 and EPSG:25830. Finally I test the layer in my app and I found that the data is moved. See attached image. I'm using GeoServer 2.0.2. Does anybody know what could be happening?? You might be experiencing a datum shift issue. Both of the SRS you're mentioning are based on a datum other than wgs84, and have togwgs84 params attached to them. Normally there is a different set of towgs84 params depending on the area you're trying to reproject, for example, in Italy we have one for land, one for Sicily, one for Sardinia, and if you want improved accuracy (datum conversion error less than 4m) you need to write your custom ones depending on the particular area you're working in. GeoServer can only use one of those though, 2.0.2 picked it at random, the current version picks the one that covers the widest area instead. See http://docs.geoserver.org/stable/en/user/advanced/crshandling/customcrs.html for information on how to define your own custom parameters. You won't get info on how to pick the right values though, that's something you have to lookup on the internet by yourself Cheers Andrea -- ------------------------------------------------------- Ing. Andrea Aime GeoSolutions S.A.S. Tech lead Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 962313 mob: +39 339 8844549 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.youtube.com/user/GeoSolutionsIT http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf ------------------------------------------------------- ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
