[Proj4j] Conversion issue

[P. Peterse (HDB)]

Hello,

here is the stack trace from my code:
===============
org.osgeo.proj4j.InvalidValueException: Unknown projection: sterea
    at
org.osgeo.proj4j.parser.Proj4Parser.parseProjection(Proj4Parser.java:71)
    at org.osgeo.proj4j.parser.Proj4Parser.parse(Proj4Parser.java:43)
    at org.osgeo.proj4j.CRSFactory.createFromParameters(CRSFactory.java:120)
    at org.osgeo.proj4j.CRSFactory.createFromParameters(CRSFactory.java:98)
    at com.hdb.tol.wms.RDConverter.convert2WGS84(RDConverter.java:114)
===============

What can I check?

Thanks for any reply.
Peter

Op 19-10-2012 10:40, P. Peterse (HDB) schreef:
> Hello Martin,
>
> It looks indeed that it's an initialisation issue. We are trying to
> trace the bug and for now we suspect that the issue is in the class
> Proj4Keyword
> This method checkUnsupported is throwing the error. The code thinks one
> of the params is not supported.
>
> If we find a sollution we will send it.
>
> Regards,
> Peter Peterse
>
>
> Op 17-10-2012 18:27, Martin Davis schreef:
>> I just tried this as well, and the code works fine for me.  But if the
>> problem is some kind of transient intialization error it's probably
>> not going to show up in simple one-off tests.
>>
>> All I can suggest is to try and see if you can catch the problem in a
>> debug session, and then have a look at why it might be occurring.
>>
>> Nice to see Proj4J is getting used!
>>
>> Martin
>>
>> On Wed, Oct 17, 2012 at 3:10 AM, P. Peterse (HDB)
>> <p.peterse at han-dataport.nl> wrote:
>>> Hello list,
>>>
>>> We are using org.osgeo.proj4j in our project and facing sometimes an
>>> issue while transforming an coordinate from lat/long format to EPSG:28992.
>>> Most times the conversion will work ok, but sometimes there comes an
>>> exception:
>>> towgs84 parameter is not supported
>>> The input coordinate is:
>>> LatLon[lat=52.11882666666666, lon=5.04316]
>>>
>>> The used code is as follows:
>>> ===============
>>>         CRSFactory csFactory = new CRSFactory();
>>>         final String EPSG28992_PARAM = "+proj=sterea
>>> +lat_0=52.15616055555555 +lon_0=5.38763888888889 +k=0.9999079
>>> +x_0=155000 +y_0=463000 +ellps=bessel
>>> +towgs84=565.417,50.3319,465.552,-0.398957,0.343988,-1.8774,4.0725
>>> +units=m +no_defs";
>>>         CoordinateReferenceSystem epsg28992 =
>>> csFactory.createFromParameters("EPSG:28992", EPSG28992_PARAM);
>>>
>>>         final String WGS84_PARAM = "+title=long/lat:WGS84 +proj=longlat
>>> +ellps=WGS84 +datum=WGS84 +units=degrees";
>>>         CoordinateReferenceSystem epsg4326 =
>>> csFactory.createFromParameters("WGS84",WGS84_PARAM);
>>>
>>>         CoordinateTransformFactory ctFactory = new
>>> CoordinateTransformFactory();
>>>         CoordinateTransform trans = ctFactory.createTransform(epsg4326,
>>> epsg28992);
>>>         ProjCoordinate inCoord = new ProjCoordinate();
>>>         ProjCoordinate outCoord = new ProjCoordinate();
>>>         inCoord.y = pos.getLat();
>>>         inCoord.x = pos.getLon();
>>>         //convert from lat/lon to RD.
>>>         trans.transform(inCoord, outCoord);
>>>         final double[] point = new double[2];
>>>         point[0]=outCoord.x;
>>>         point[1]=outCoord.y;
>>>
>>>         return point;
>>> ===============
>>>
>>> Does anyone have a clue what's going wrong over here?
>>>
>>> Thanks for your patience.
>>>
>>> Regards,
>>> Peter Peterse
>>> _______________________________________________
>>> Proj4j mailing list
>>> Proj4j at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/proj4j
> _______________________________________________
> Proj4j mailing list
> Proj4j at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/proj4j
>
>