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] <
[email protected]>
> 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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