Hi,
Just want to know if this is a known problem or an incompatibility with
some other software we use.
I can display geotiff's we have created but the geotiff tags don't seem
to be read completely.
The image is in WGS UTM Zone 39. Below is the result from listgeo
listgeo uae_50m_dem_csh.tif
Geotiff_Information:
Version: 1
Key_Revision: 1.0
Tagged_Information:
ModelTiepointTag (2,3):
0 0 0
623250 2702250 0
ModelPixelScaleTag (1,3):
50 50 0
End_Of_Tags.
Keyed_Information:
GTModelTypeGeoKey (Short,1): ModelTypeProjected
GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
GTCitationGeoKey (Ascii,257): "IMAGINE GeoTIFF Support
Copyright 1991 - 2005 by Leica Geosystems Geospatial Imaging, LLC.
All Rights Reserved
@(#)$RCSfile: egtf.c $ IMAGINE 9.0 $Revision: 10.0 $ $Date:
2005/07/26 15:10:00 EST $
Projection Name = UTM
Units = meters
GeoTIFF Units = meters"
GeogGeodeticDatumGeoKey (Short,1): Datum_WGS84
GeogEllipsoidGeoKey (Short,1): Ellipse_WGS_84
ProjectedCSTypeGeoKey (Short,1): PCS_WGS84_UTM_zone_39N
PCSCitationGeoKey (Ascii,27): "Processed by Photosat LTD."
ProjCoordTransGeoKey (Short,1): CT_TransverseMercator
ProjLinearUnitsGeoKey (Short,1): Linear_Meter
ProjNatOriginLongGeoKey (Double,1): 51
ProjNatOriginLatGeoKey (Double,1): 0
ProjFalseEastingGeoKey (Double,1): 500000
ProjFalseNorthingGeoKey (Double,1): 0
ProjScaleAtNatOriginGeoKey (Double,1): 0.9996
End_Of_Keys.
End_Of_Geotiff.
PCS = 32639 (name unknown)
Projection = 16039 ()
Projection Method: CT_TransverseMercator
ProjNatOriginLatGeoKey: 0.000000 ( 0d 0' 0.00"N)
ProjNatOriginLongGeoKey: 51.000000 ( 51d 0' 0.00"E)
ProjScaleAtNatOriginGeoKey: 0.999600
ProjFalseEastingGeoKey: 500000.000000
ProjFalseNorthingGeoKey: 0.000000
GCS: 4326/WGS 84
Datum: 6326/World Geodetic System 1984
Ellipsoid: 7030/WGS 84 (6378137.00,6356752.31)
Prime Meridian: 8901/Greenwich (0.000000/ 0d 0' 0.00"E)
Projection Linear Units: 9001/metre (1.000000m)
Corner Coordinates:
Upper Left ( 623250.000,2702250.000)
Lower Left ( 623250.000,2511800.000)
Upper Right ( 847450.000,2702250.000)
Lower Right ( 847450.000,2511800.000)
Center ( 735350.000,2607025.000)
When I load this image into a uDig map the CRS indicated is WGS84 with
no projection.
The coordinates reported in the map window are EN and not Lat Long.
Is uDig attempting to reproject the image on the fly?
Do our geotiff's need some further tag to be recognized properly?
Any help would be appreciated,
Thanks,
Hugh
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