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<TITLE>[FWTools] PROJ.dll 4.4.6 vs. 4.5.0</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Hi,</FONT>
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<P><FONT SIZE=2 FACE="Arial">does anyone have a quick idea why using GDAL 1.4.2 and proj-4.5.0 gives different result on coordinate transformations as GDAL 1.4.2 with proj-4.4.6?</FONT></P>
<P><FONT SIZE=2 FACE="Arial">We're facing the problem that the newer release of the proj.dll does result in different (wrong) results on the coordinate transformation but we're not sure what causes this.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">In principle we're using WKT-files (based on ESRI) for the coordinate systems.</FONT>
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<P><FONT SIZE=2 FACE="Arial">We start with</FONT>
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<P><FONT SIZE=2 FACE="Arial">wgs84 / latlong</FONT>
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<P><FONT SIZE=2 FACE="Arial">GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]]</FONT></P>
<P><FONT SIZE=2 FACE="Arial">and go to sphere mercator</FONT>
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<P><FONT SIZE=2 FACE="Arial">PROJCS["Sphere_Mercator",GEOGCS["GCS_Sphere",DATUM["D_Sphere",SPHEROID["Sphere",6371000,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Mercator"],PARAMETER["False_Easting",0],PARAMETER["False_Northing",0],PARAMETER["Central_Meridian",0],PARAMETER["Standard_Parallel_1",0],UNIT["Meter",1]]</FONT></P>
<P><FONT SIZE=2 FACE="Arial">using a point with 8.403300/48.999240 the result should be 934404.3271/6267711.1464 but it isn't. The x-coordinate is correct but y is different.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Any help/ideas are appreciated.</FONT>
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<P><FONT SIZE=2 FACE="Arial">Martin</FONT>
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