Hi Edgar,
It isn't the difficulty of doing transformations that I fear. Just
the difficulty of interfacing GT2 to OpenJump. I'm sure we are
willing to learn though if you're offering to teach. :-)
More seriously - are you saying that we can just add a GT2 jar, wrap
it in an interface like some of the guys have been kicking around, and
get instant transformation?
What would we do for a start? Add a Layer->reproject function?
regards,
Larry
On 9/13/07, Stefan Steiniger <[EMAIL PROTECTED]> wrote:
> probably rather to this list ;)
>
> -------- Original-Nachricht --------
> Betreff: [jump-devel] Projection with Geotools2 CRS
> Datum: Thu, 13 Sep 2007 21:00:44 +0200
> Von: Edgar Soldin <[EMAIL PROTECTED]>
> Antwort an: JUMP Developers <[EMAIL PROTECTED]>
> An: JUMP Developers <[EMAIL PROTECTED]>
>
> Hello All,
>
> because of all the comments related to projection (interfaces) , here is
> an example of the simplicity in using GT2 CRS for projection/transformation
>
> SNIPPET-->
> CoordinateOperationFactory coFactory =
> FactoryFinder.getCoordinateOperationFactory(null);
> MathTransform transform;
> src = FactoryFinder.getCRSFactory(null).createFromWKT("PROJCS[\"DHDN
> / Gauss-Kruger Zone 3\", GEOGCS[\"DHDN\", DATUM[\"Deutsches
> Hauptdreiecksnetz\", SPHEROID[\"Bessel 1841\", 6377397.155, 299.1528128,
> AUTHORITY[\"EPSG\",\"7004\"]], TOWGS84[598.1, 73.7, 418.2,
> 0.2019999999999998, 0.04499999999999995, -2.4549999999999974, 6.7],
> AUTHORITY[\"EPSG\",\"6314\"]], PRIMEM[\"Greenwich\", 0.0,
> AUTHORITY[\"EPSG\",\"8901\"]], UNIT[\"degree of
> angle\",0.017453292519943295], AXIS[\"Geodetic longitude\",EAST],
> AXIS[\"Geodetic latitude\",NORTH], AUTHORITY[\"EPSG\",\"4314\"]],
> PROJECTION[\"Transverse_Mercator\"], PARAMETER[\"semi_major\",
> 6377397.155], PARAMETER[\"semi_minor\", 6356078.962818189],
> PARAMETER[\"central_meridian\", 8.999999999999991],
> PARAMETER[\"latitude_of_origin\", 0.0], PARAMETER[\"scale_factor\",
> 1.0], PARAMETER[\"false_easting\", 3500000.0],
> PARAMETER[\"false_northing\", 0.0], UNIT[\"metre\",1.0],
> AXIS[\"Easting\",EAST], AXIS[\"Northing\",NORTH],
> AUTHORITY[\"EPSG\",\"31467\"]]");
> //src = FactoryFinder.getCRSAuthorityFactory("EPSG",
> null).createCoordinateReferenceSystem("EPSG:31467");
> trg = FactoryFinder.getCRSAuthorityFactory("EPSG",
> null).createCoordinateReferenceSystem("EPSG:4326");
> CoordinateOperation co = coFactory.createOperation(src, trg);
>
> transform = co.getMathTransform();
> <--SNIPPET
>
> the snippet is only rough cut out of my tests. It will not compile in
> this state, but still it shows how easy it is with GT2 to get a
> transformation (from WKT or EPSG ID, as you choose) for projecting
> coordinates. The EPSG entries of the factory are of course
> request-/listable by name(description).
>
> just trying to lobby for the GT2 library, as I get the impression the
> list is a bit afraid of it ;).
>
> regards ede
>
> --
> public class WhoDidIt{ // A comment. I love comments
> private static Person sender;
>
> public static void main (String[] foo){
>
> sender = new Person();
> sender.setName(new String[]{"Edgar", "Soldin"});
>
> Address address = new Address();
> address.setStreet("Stadtweg 119");
> address.setZip(39116);
> address.setCity("Magdeburg");
> address.setCountry("Germany");
>
> sender.setAddress(address);
>
> sender.setMobilePhone(" +49(0)171-2782880 ");
> sender.setWebSiteUrl(" http://www.soldin.de ");
> sender.setEmail(" [EMAIL PROTECTED] ");
> sender.setPGPPublicKey(" http://www.soldin.de/edgar_soldin.asc ");
> sender.setGender(true);
>
> System.out.println(sender.toString());
> }
> }
>
> _______________________________________________
> jump-devel mailing list
> [EMAIL PROTECTED]
> http://lists.refractions.net/mailman/listinfo/jump-devel
>
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Jump-pilot-devel mailing list
> Jump-pilot-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
>
--
http://amusingprogrammer.blogspot.com/
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Jump-pilot-devel mailing list
Jump-pilot-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
