[Proj4j] Conversion issue

[P. Peterse (HDB)]

Hello Gertjan,

I'm using the tile this weekend the most resent version.
The parameters  used in our code are valid.

Regards,
Peter

Op 19-10-2012 18:28, Gertjan Idema schreef:
> Hi Peter,
>
> The sterea projection got added in may 2011. See:
> http://trac.osgeo.org/proj4j/changeset/1995
> If you have a second (older) copy of proj4j somewhere in your
> classpath, that might explain your problems.
> There is for example a proj4j.jar that is an Openstreetmap plug-in.
> Maybe you have an old version of this jar somewhere in your project.
> The code could also be in an other library you use.
>
> Gertjan
>
> On Fri, 2012-10-19 at 15:14 +0200, P. Peterse (HDB) wrote:
>> 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 <mailto: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
>> >>> _______________________________________________
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