That looks like it was probably the issue. Thanks!
-Brian
On Wed, Jun 15, 2011 at 10:46 AM, Gabriel Roldán <[email protected]>wrote:
> I guess if you want to keep the behaviour consistent with epsg-wkt
> you'll have to do CRS.decode("epsg:4326", true) instead.
>
> Note for the epsg-hsql case you're getting lat/lon axis order, while for
> the epsg-wkt case you're getting lon/lat.
>
> Cheers,
> Gabriel
> On Wed, 2011-06-15 at 10:14 -0500, Brian Clements wrote:
> > Hello, I've been using the epsg-wkt component for a few years and have
> > a decent amount of code written around it. I'm currently trying to
> > switch over to the epsg-hsql component since it has better support for
> > polar stereographic projections.
> >
> >
> > While doing this I ran into an issue with epsg:4326. I'll use the
> > following code to illustrate:
> >
> >
> >
> >
> > import org.geotools.referencing.CRS;
> > import org.junit.Assert;
> > import org.junit.Test;
> > import org.opengis.referencing.crs.CoordinateReferenceSystem;
> > import org.opengis.referencing.cs.CoordinateSystem;
> >
> >
> >
> >
> > public class EpsgTest {
> >
> >
> > @Test
> > public void CrsTest(){
> > try {
> > CoordinateReferenceSystem crs = CRS.decode("epsg:4326");
> > CoordinateSystem cs = crs.getCoordinateSystem();
> > System.out.println(cs);
> > } catch (Exception e) {
> > e.printStackTrace();
> > Assert.fail();
> > }
> > }
> >
> >
> > }
> >
> >
> > Case 1
> > pom.xml dependencies:
> > <dependency>
> > <groupId>org.geotools</groupId>
> > <artifactId>gt-referencing</artifactId>
> > <version>2.7.1</version>
> > <type>jar</type>
> > <scope>compile</scope>
> > </dependency>
> > <dependency>
> > <groupId>org.geotools</groupId>
> > <artifactId>gt-epsg-hsql</artifactId>
> > <version>2.7.1</version>
> > <type>jar</type>
> > <scope>compile</scope>
> > </dependency>
> >
> >
> > Output:
> > EllipsoidalCS["Ellipsoidal 2D CS. Axes: latitude, longitude.
> > Orientations: north, east. UoM: degree",
> > AXIS["Geodetic latitude", NORTH],
> > AXIS["Geodetic longitude", EAST],
> > AUTHORITY["EPSG","6422"]]
> >
> >
> > Case 2
> > pom.xml dependencies:
> > <dependency>
> > <groupId>org.geotools</groupId>
> > <artifactId>gt-referencing</artifactId>
> > <version>2.7.1</version>
> > <type>jar</type>
> > <scope>compile</scope>
> > </dependency>
> > <dependency>
> > <groupId>org.geotools</groupId>
> > <artifactId>gt-epsg-wkt</artifactId>
> > <version>2.7.1</version>
> > <type>jar</type>
> > <scope>compile</scope>
> > </dependency>
> >
> >
> > Output:
> > EllipsoidalCS["WGS 84",
> > AXIS["Geodetic longitude", EAST],
> > AXIS["Geodetic latitude", NORTH],
> > AUTHORITY["EPSG","4326"]]
> >
> >
> > I get different math transforms when converting epsg:4326 coordinates
> > to coordinates in a lambert conformal projected crs in the two cases.
> > The math transforms I get in case 1 produce NaN pairs instead of the
> > correct coordinates I get using the crs in case 2.
> >
> >
> > Please let me know if this is expected with the epsg-hsql component,
> > if I am doing something wrong or if you need more information. Thanks!
> >
> >
> > -Brian
> >
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> --
> Gabriel Roldan
> [email protected]
> Expert service straight from the developers
>
>
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