[geotk] Finding a CRS code/URN from a CoordinateReferenceSystem object

[Jon Blower]

Hi Martin,

Excellent!  Was that method present in GeoTools?  If so I must have
missed it.  We plan to migrate to Geotoolkit anyway when we have a
chance.

So I guess the WKT database doesn't support this?

Cheers, Jon

On Wed, Jun 17, 2009 at 8:25 PM, Martin
Desruisseaux<martin.desruisseaux at geomatys.fr> wrote:
> Hello Jon
>
> Jon Blower a écrit :
>>
>> Is there any way in which I can find out the corresponding CRS code
>> (e.g. the EPSG code), or better still, an OGC URN, from a
>> CoordinateReferenceSystem object?  That is, I want to do the reverse
>> of CRS.decode(String crsCode).
>
> Yes, the following method is there exactly for that. You need an EPSG
> database however, either the embedded JavaDB or a database on PostgreSQL, at
> your choice.
>
> http://www.geotoolkit.org/apidocs/org/geotoolkit/referencing/CRS.html#lookupIdentifier(org.opengis.referencing.IdentifiedObject,%20boolean)
>
> Please let me know if you have any issue.
>
>        Regards,
>
>                Martin
>



-- 
Dr Jon Blower
Technical Director, Reading e-Science Centre
Environmental Systems Science Centre
University of Reading
Harry Pitt Building, 3 Earley Gate
Reading RG6 6AL. UK
Tel: +44 (0)118 378 5213
Fax: +44 (0)118 378 6413
j.d.blower at reading.ac.uk
http://www.nerc-essc.ac.uk/People/Staff/Blower_J.htm