Please ignore this thread. I've finally figured out that it was an error in
code on my part. I thought that my code was reading the .map file, when in
fact it was reading the GeoTIFF file that had been converted from the .map/ozf2
earlier in the program. My humble apologies.
(I may post a new thread later regarding why the GeoTIFF is not georeferenced
correctly).
Thanks for your tolerance. :-)
Nik.
On 12/11/2012, at 12:45 PM, Nik Sands <nix...@nixanz.com> wrote:
> I still don't have any resolution to this issue, but thanks to feedback from
> one list reader, I've been prompted to find out some more information...
>
> gdalinfo produces the following output, which is contrary to what my
> application produces:
>
> Coordinate System is `LOCAL_CS[""Ozi" projection "(UTM) Universal
> Transverse Mercator"",UNIT["Meter",1]]'
>
> So I need to figure out why my application is not getting this from the same
> file.
>
> Note that my build of GDAL is from a recent version of the trunk (September,
> 2012):
>
> $ gdalinfo --version
> GDAL 2.0dev, released 2011/12/29
>
> And was built for Mac OS X using the following configure (which I noted at
> the time for future reference as it took me ages to get this to work :-):
>
> ./configure \
> --with-macosx-framework \
> --with-threads \
> --disable-static \
> --without-pg \
> --without-grass \
> --without-libgrass \
> --without-cfitsio \
> --without-pcraster \
> --without-netcdf \
> --without-ogdi \
> --without-fme \
> --without-hdf4 \
> --without-hdf5 \
> --without-jasper \
> --without-kakadu \
> --without-bsb \
> --without-grib \
> --without-mysql \
> --without-ingres \
> --without-xerces \
> --without-odbc \
> --without-curl \
> --without-sqlite3 \
> --without-idb \
> --without-sde \
> CFLAGS="-Os -arch i386 -arch x86_64" \
> CXXFLAGS="-Os -arch i386 -arch x86_64" \
> LDFLAGS="-arch i386 -arch x86_64"
>
>
>
> On 07/11/2012, at 11:11 AM, Nik Sands <nix...@nixanz.com> wrote:
>
>> Hi all,
>>
>> My application is reading in ozi file pairs (.ozf2/.map), warping them and
>> saving out as GeoTIFF or other file formats using GDAL. It works fine for
>> my own ozf files, but not for the files sent to me by one of my users (who
>> apparently has a large number of files they want to use).
>>
>> It has been unable to get a useful spatial reference system from the ozi
>> file pair (.ozf2/.map) sent to me (.map content below). The following code:
>>
>> ------------------
>> OGRSpatialReferenceH srcSRS = OSRNewSpatialReference(pszSrcWKT);
>> char *srcWKT;
>>
>> OSRExportToWkt(srcSRS, &srcWKT);
>> printf("\n%s\n\n", srcWKT);
>> ------------------
>>
>> produces the following output:
>>
>> ------------------
>> LOCAL_CS["unnamed",UNIT["unknown",1]]
>> ------------------
>>
>> Can somebody please help me to use GDAL to obtain a valid spatial reference
>> system from this .map file (content below)?
>>
>> Note that I'm using a fairly recent build of GDAL trunk that includes all
>> the ozi datums, etc, including "Australian Geodetic 1966" and it is able to
>> get a valid SRS from my own files that use the same ozi datum.
>>
>> The complete content of the ozi .map file in question is below.
>>
>> Thanks in anticipation,
>> Nik.
>>
>>
>> OziExplorer Map Data File Version 2.2
>> r2256.jgw
>> D:\Documents and Settings\nelsonp\My Documents\General
>> Admin\Personal\Tasmania 1 to 25,000\North West OZF2\r2256.ozf2
>> 1 ,Map Code,
>> Australian Geodetic 1966,WGS 84, 0.0000, 0.0000,WGS 84
>> Reserved 1
>> Reserved 2
>> Magnetic Variation,,,E
>> Map Projection,(UTM) Universal Transverse
>> Mercator,PolyCal,No,AutoCalOnly,No,BSBUseWPX,No
>> Point01,xy, 0, 0,in, deg, , ,, , ,, grid,
>> 55,219999.09067205,5570000.7412442,S
>> Point02,xy, 1000, 1000,in, deg, , ,, , ,, grid,
>> 55,223259.16350298,5566740.6684133,S
>> Point03,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point04,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point05,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point06,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point07,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point08,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point09,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point10,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point11,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point12,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point13,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point14,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point15,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point16,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point17,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point18,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point19,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point20,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point21,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point22,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point23,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point24,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point25,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point26,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point27,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point28,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point29,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Point30,xy, , ,in, deg, , ,, , ,, grid, ,
>> , ,
>> Projection Setup, 0.000000000, -120.000000000, 0.999600000,
>> 0.00, -4000000.00, 34.000000000, 40.500000000,,,
>> Map Feature = MF ; Map Comment = MC These follow if they exist
>> Track File = TF These follow if they exist
>> Moving Map Parameters = MM? These follow if they exist
>> MM0,Yes
>> MMPNUM,4
>> MMPXY,1,0,0
>> MMPXY,2,6136,0
>> MMPXY,3,6136,3069
>> MMPXY,4,0,3069
>> MMPLL,1, 143.721340, -39.973660
>> MMPLL,2, 143.955261, -39.980047
>> MMPLL,3, 143.951253, -40.070068
>> MMPLL,4, 143.717025, -40.063661
>> MM1B,3.251882
>> MOP,Map Open Position,0,0
>> IWH,Map Image Width/Height,6136,3069
>>
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>> gdal-dev@lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>
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