Hello Martin Tomko
I finally had a chance to look at your issue. The issue is that the projection
you are using should be "Oblique_Mercator", not "Hotine_Oblique_Mercator" (this
is not the same). Actually the projection name are somewhat confusing:
What OGC calls "Oblique_Mercator", ESRI calls that
"Hotine_Oblique_Mercator_Azimuth_Center".
What OGC calls "Hotine_Oblique_Mercator", ESRI calls that
"Hotine_Oblique_Mercator_Azimuth_Natural_Origin"
There is the WKT that I got from the EPSG database (I included a TOWGS84 element
which was not in your original WKT):
PROJCS["CH1903 / LV03",
GEOGCS["CH1903",
DATUM["CH1903",
SPHEROID["Bessel 1841", 6377397.155, 299.1528128,
AUTHORITY["EPSG","7004"]],
TOWGS84[674.4, 15.1, 405.3, 0.0, 0.0, 0.0, 0.0],
AUTHORITY["EPSG","6149"]],
PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]],
UNIT["degree", 0.017453292519943295],
AXIS["Geodetic latitude", NORTH],
AXIS["Geodetic longitude", EAST],
AUTHORITY["EPSG","4149"]],
PROJECTION["Oblique Mercator", AUTHORITY["EPSG","9815"]],
PARAMETER["longitude_of_center", 7.439583333333333],
PARAMETER["latitude_of_center", 46.952405555555565],
PARAMETER["azimuth", 90.0],
PARAMETER["scale_factor", 1.0],
PARAMETER["false_easting", 600000.0],
PARAMETER["false_northing", 200000.0],
PARAMETER["rectified_grid_angle", 90.0],
UNIT["m", 1.0],
AXIS["Easting", EAST],
AXIS["Northing", NORTH],
AUTHORITY["EPSG","21781"]]
I added your test case to the test script which is run everytime geotidy is
built (to be ported to Geotools later, but they were no fundamental changes in
the formulas so Geotools 2.x should be okay). Scroll down at the bottom of that
page:
http://hg.geomatys.fr/geotidy/file/88c080fc48b5/modules/referencing/gt-referencing/src/test/resources/org/geotools/referencing/operation/test-data/ObliqueMercator.txt
Regards,
Martin
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