Interesting, check to see if gt-epsg-hsql is unpacking the database to a temp
file, depending on your application server permissions it may fail at doing
something like that.
If not you are going to have to connect in with a debugger and step in and
watch the code fail :D
Note: uDig tried using H2 as an alternative, but it was never adopted by the
wider geotools community.
Jody
--
Jody Garnett
On Thursday, 20 June 2013 at 8:31 AM, dodid wrote:
> Hi Jody,
>
> Thank You for the samples, meanwhile I implemented something which works fine
> as standalone Maven program, but as soon as I integrate this into an EAR and
> deploy it on a JBoss server the CRS.lookupIdentifier fails (returns null) (I
> in one occasion it was successfull but next time with the same setup it
> failed again)
>
> I use the same dependencies (gt-referencing, gt-epsg-hsql, gt-shapefile) and
> try to import the same shapefile.
> I have no other gt-epsg-* dependency in the project
>
> Any idea where I could search?
>
> Best regards
> Andreas
>
>
>
>
>
> 2013/6/19 jody.garnett [via OSGeo.org (http://OSGeo.org)] <[hidden email]
> (/user/SendEmail.jtp?type=node&node=5061223&i=0)>
> > > When I load a shapefile and transform it to a shapefile with the same CRS
> > > everything is fine. But as soon as try to transform the shapefile with a
> > > different datum, the result is misplaced, or, if I turn of 'lenient',
> > > Geotools tells me that the Bursa Wolf parameters are missing.
> > >
> > >
> > >
> >
> >
> > Are you reading this from a prj file?
> >
> > The WKT syntax provided by some tools does not always provided enough
> > information for GeoTools
> > to accurately make the transform.
> >
> > What you can do is look up the "official" definition that matches, and then
> > proceed as normal.
> > > Is there a working example?
> > >
> > >
> > >
> >
> > The example works with the CoordinateReferenceSystem has enough information
> > :-)
> > > Can Geotools identify the required Bursa Wolf parameters?
> > >
> > >
> > >
> >
> > It cannot make up information for you, but it can come close - hunt down an
> > official definition that matches the information you do have.
> >
> > I was pretty sure I put an example in the docs - here it is:
> > -
> > http://docs.geotools.org/latest/userguide/library/referencing/crs.html#matching-a-coordinatereferencesystem
> >
> > > I'm using Geotools 9.1 and have the dependencies gt-shapefile,
> > > gt-referencing, gt-swing and gt-epsg-hsql
> > >
> > >
> > >
> >
> > So if you stitch those two examples together you should get what you want.
> > To be slightly more responsible you could either:
> > - output a warning so users of your application know you are making stuff up
> > - pop open the swing CRS Chooser and ask for user intervention
> >
> > All the best,
> > Jody
> >
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