<HTML dir=ltr><HEAD><TITLE>Re: [Proj] Swiss CORINE: Bessel 1841 Hotine Oblique MercatorAzimuthNatural Origin?</TITLE>
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<DIV dir=ltr><FONT face="Times New Roman" color=#000000 size=2>Prof. Rosenmund cooked up his projection in 1910 for the national projection of Switzerland. Brigadier Martin Hotine cooked up his in 1948 for Malaya and Borneo.</FONT></DIV>
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<DIV dir=ltr><FONT size=2>C. Mugnier</FONT></DIV></DIV>
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<FONT face=Tahoma size=2><B>From:</B> proj-bounces@lists.maptools.org on behalf of Gerald I. Evenden<BR><B>Sent:</B> Fri 10-Jul-09 09:53<BR><B>To:</B> PROJ.4 and general Projections Discussions<BR><B>Subject:</B> Re: [Proj] Swiss CORINE: Bessel 1841 Hotine Oblique MercatorAzimuthNatural Origin?<BR></FONT><BR></DIV>
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<P><FONT size=2>On Friday 10 July 2009 9:35:59 am Clifford J Mugnier wrote:<BR>> Switzerland dropped the Rosenmund Oblique in favor of the Hotine Oblique<BR>> RSO?<BR>><BR>> Since when?<BR>><BR>> C. Mugnier<BR>> LOUISIANA STATE UNIVERSITY<BR><BR>Except for the false easting and northing, the other factors look similar to<BR>proj's proj=somerc projection parameters which brings up a point: I never saw<BR>a name declared anywhere for this projection which is basically a Gauss<BR>transformation to the sphere followed by coordinate shift on the shere. In<BR>the case of the Swiss usage the polar axis is shifted in the plane of the<BR>central meridian until the equator is at the central point:<BR><BR>lon_0=7d26'22.50"<BR>lat_0=46d57'08.66"<BR><BR>Hotine usage for Swiss projections keep comming up but I question that the<BR>Swiss ever used Hotine for anything domestic.<BR><BR>><BR>> ________________________________<BR>><BR>> From: proj-bounces@lists.maptools.org on behalf of Markus Neteler<BR>> Sent: Fri 10-Jul-09 07:59<BR>> To: PROJ.4 and general Projections Discussions<BR>> Subject: Re: [Proj] Swiss CORINE: Bessel 1841 Hotine Oblique<BR>> MercatorAzimuth Natural Origin?<BR>><BR>><BR>><BR>> Dear list members,<BR>><BR>> I was earlier sending this message to the gdal-dev list without<BR>> answer. trying here now:<BR>><BR>> On Mon, Jun 8, 2009 at 5:24 PM, Markus Neteler<neteler@osgeo.org> wrote:<BR>> > hi,<BR>> ><BR>> > I am trying to reproject the Swiss CORINE data CLC90 [1] into LAEA.<BR>> > The .prj file is attached. Unfortunately the transformation fails:<BR>> ><BR>> > ogr2ogr -t_srs eu_etrs89_laea.prj /tmp/clc90_eu_laea.shp<BR>> > /geodata/clcbn85p.shp ERROR 6: Failed to initialize PROJ.4 with<BR>> > `+proj=omerc<BR>> > +lat_0=46.95240555555556 +lonc=7.439583333333333 +alpha=90 +k=1<BR>> > +x_0=-9419820.590700001 +y_0=200000 +ellps=bessel +units=m +no_defs '.<BR>> > lat_0 = 0 or 90 or alpha = 90<BR>> > Failed to create coordinate transformation between the<BR>> > following coordinate systems. This may be because they<BR>> > are not transformable, or because projection services<BR>> > (PROJ.4 DLL/.so) could not be loaded.<BR>> > Source:<BR>> > PROJCS["Bessel_1841_Hotine_Oblique_Mercator_Azimuth_Natural_Origin",<BR>> > GEOGCS["GCS_Bessel_1841",<BR>> > DATUM["Not_specified_based_on_Bessel_1841_ellipsoid",<BR>> > SPHEROID["Bessel_1841",6377397.155,299.1528128]],<BR>> > PRIMEM["Greenwich",0.0],<BR>> > UNIT["Degree",0.0174532925199433]],<BR>> > PROJECTION["Hotine_Oblique_Mercator"],<BR>> > PARAMETER["False_Easting",-9419820.5907],<BR>> > PARAMETER["False_Northing",200000.0],<BR>> > PARAMETER["Scale_Factor",1.0],<BR>> > PARAMETER["Azimuth",90.0],<BR>> > PARAMETER["Longitude_Of_Center",7.439583333333333],<BR>> > PARAMETER["Latitude_Of_Center",46.95240555555556],<BR>> > UNIT["Meter",1.0]]<BR>> > Target:<BR>> > PROJCS["ETRS89 / ETRS-LAEA",<BR>> > GEOGCS["ETRS89",<BR>> > DATUM["European_Terrestrial_Reference_System_1989",<BR>> > SPHEROID["GRS 1980",6378137,298.2572221010042,<BR>> > AUTHORITY["EPSG","7019"]],<BR>> > AUTHORITY["EPSG","6258"]],<BR>> > PRIMEM["Greenwich",0],<BR>> > UNIT["degree",0.0174532925199433],<BR>> > AUTHORITY["EPSG","4258"]],<BR>> > UNIT["metre",1,<BR>> > AUTHORITY["EPSG","9001"]],<BR>> > AUTHORITY["EPSG","3035"]]<BR>> ><BR>> > Suggestions welcome to reproject this data set...<BR>> ><BR>> > thanks<BR>> > Markus<BR>> ><BR>> > [1]<BR>> > <A href="http://www.bfs.admin.ch/bfs/portal/de/index/dienstleistungen/geostat/date">http://www.bfs.admin.ch/bfs/portal/de/index/dienstleistungen/geostat/date</A><BR>> >nbeschreibung/corine_land_cover.html Data: -> GIS-Daten CORINE Land Cover<BR>> > Schweiz 1990 (ZIP file)<BR>><BR>> Is there a way to enable PROJ4 to support this projection?<BR>><BR>> thank in advance,<BR>> Markus<BR><BR>--<BR>The whole religious complexion of the modern world is due<BR>to the absence from Jerusalem of a lunatic asylum.<BR>-- Havelock Ellis (1859-1939) British psychologist<BR>_______________________________________________<BR>Proj mailing list<BR>Proj@lists.maptools.org<BR><A href="http://lists.maptools.org/mailman/listinfo/proj">http://lists.maptools.org/mailman/listinfo/proj</A><BR></FONT></P></DIV></BODY></HTML>