Hi Martin, I can confirm that the new specification of the projection works finie. Could you submit a fix to the GT snapshot, or how should we proceed? I have never done that... WOuld be interested to find out how to proceed. Thanks again, Martin
Martin Desruisseaux wrote: > 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 > > > > -- Martin Tomko Postdoctoral Research Assistant Geographic Information Systems Division Department of Geography University of Zurich - Irchel Winterthurerstr. 190 CH-8057 Zurich, Switzerland email: [EMAIL PROTECTED] site: http://www.geo.uzh.ch/~mtomko mob: +41-788 629 558 tel: +41-44-6355256 fax: +41-44-6356848 ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
