Right. Good thing I wrote all these docs when I was trying to understand this stuff last month.
The referencing "Authority" stuff is focused on producing a CoordinateReferenceSystem from a code as you well know. To make one by hand you can use the referencing "Factory" stuff. I am sorry both these things have "factory" in the name it is really just a mistake. - http://docs.codehaus.org/display/GEOTDOC/10+Referencing+Factories The factories (real factories create methods) described on that page can be used to build your CoordianteReferenceSystem by hand. - CRSFactory.createFromWKT is the method you want. Although I have to ask? If you are not using EPSG codes - what are you using? WKT provided by your shapefile (or user?). If you are just using the "usual suspects" you may find that GeoTools already provides static constants for them. I will add to the description on this page to cover the static constants GeoTools provides: - http://docs.codehaus.org/display/GEOTDOC/03+CoordinateReferenceSystem Cheers, Jody Lareina Sun wrote: > Now I created CoordinateReferenceSystem via > CRSAuthorityFactory.createCoordinateReferenceSystem(String epsgCode). > What if the datum has no epsg code? If I only have a datum name can I > create a > CoordinateReferenceSystem? I'm trying to find a way not to use EPSG > code then I don't need to deal with epsg-hsql. > > Sun > Jody Garnett wrote: >> Hi Lareina - taking this over to the user list... >> >> The epsg-hsql plugin needs the ability to write to disk, depending on >> your application server it may not have that ability. Do you have any >> kind >> of logs you could look at in order to check? Note that GeoServer is a >> Java EE application and it uses epsg-hsql successfully so we know it >> can be done. >> >> Jody >>> This time I didn't use applet. I deployed the app onto the server >>> and it was called as a bean. I had geoapi-nogenerics-2.1-M2.jar, >>> gt2-referencing-2.3.2.jar, gt2-epsg-hsql-2.3.2.jar, >>> hsqldb-1.8.0.1.jar and >>> jsr108-0.01.jar in my class path. Before I deployed it worked well >>> locally but when I ran the web it reported that the epsg code >>> couldn't be found. Do I need do something on the server side? >>> >>> Thanks, >>> >>> Sun >>> >> >> >> > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
