[Gdal-dev] Transformation from UTM32 WGS84 (EPSG:32632) to latlong (EPSG:4326)

[Zhonghai Wang]

Hi there,

I am always using the FWTools to do some raster transformation from NUTM32
to WGS84, i didn't get any problems. Normally i do like this:

gdalwarp -s_srs "EPSG:32632" -t_srs "EPSG:4326" -of GTIFF -co TFW=YES
UTM32N_20.tif  WGS84_20.tif

I am using the version FWTools-1.3.4.

hope this helps.

Zhonghai

On 8/10/07, shortyII <sschantz at bfs.de> wrote:
>
>
>
> Frank Warmerdam-2 wrote:
> >
> > Hi,
> >
> > The above coordinates are not UTM 32 meter values.  The earth is only
> > roughly 40 million meters around at the equator, so an x offset of
> > 32 million meters is crazy.  Transverse Mercator rapidly degrees past
> > about
> > 10 degrees off the central meridian.
> >
> > So, I think the problem is that the input coordinate system is not UTM
> 32
> > *or* you have the units wrong or the file was essentially screwed up by
> > some previous attempt to convert it to utm 32.
> >
> >
>
> Hi,
> This coordinates are UTM 32. The first 2 numbers of the easting describe
> the
> UTM strip (32). This notation is quite common (at least at  german federal
> agency for cartography and geodesie).
> I could read about this problem quite often here in the mailing-archive,
> but
> I couldn't find any solution. Is there a possibility to correct the gtiff
> .
> The federal agenceny explains:
> "As download text files are offered that contain a definition of the
> georeferencing for use in the PROJECT command of ArcInfo Workstation. For
> the UTM projections the indication "xshift 3..." applies to a use of the
> parameters under OUTPUT. For a use under INPUT "xshift -3..." has to be
> applied or the accurate definition of your UTM coordinates has to be
> considered, respectively."
> Can gdalwarp do any "xshifts" ?
> Thanks for helping!
>
> --
> View this message in context:
> http://www.nabble.com/Transformation-from-UTM32-WGS84-%28EPSG%3A32632%29-to-latlong-%28EPSG%3A4326%29-tf4241391.html#a12086391
> Sent from the GDAL - Dev mailing list archive at Nabble.com.
>
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