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Hi,<br>
[yet another "funny" image problem. - yay]<br>
<br>
Using Ubuntu 9.10 Karmic with gdal 1.5.4-4 (I think - how can I check
for sure? --help doesn't help)<br>
<br>
I've tried various -t_srs permutations trying to convert a tiff ortho
from LATLONG to UTM34S but I keep ending up with PROJCS in the Northern
hemisphere, even though the Corner Coordinates show a latitude in the
South. The UTM coords are not in the expected value range, either.<br>
<br>
Note I am not using -s_srs as I am expecting that from the TIFF headers.<br>
<br>
<b>gdalwarp -t_srs 'epsg:32734' 3319bc23.tif bc23.tif</b><br>
Notice the UTM zone, Central Meridian and False Northing in the target
bc23.tif file.<br>
<br>
<br>
Here are gdalinfo outputs for the following 3 images: (Third being a
reference image that is slightly East of the bc23 image)<br>
<br>
-rw-rw-r-- 1 1001 geograph 376 2010-02-20 17:43 3319bc23.IF<br>
-rw-rw-r-- 1 1001 geograph 118 2010-02-19 09:57 3319bc23.tfw<br>
-rw-rw-r-- 1 1001 geograph 158072320 2010-02-19 09:57 3319bc23.tif<br>
<br>
-rw-r--r-- 1 1001 geograph 295016802 2010-02-25 11:02 bc23.tif<br>
<br>
-rw-r--r-- 1 1001 geograph 355 2010-02-24 09:19 worcester.IF<br>
-rw-r--r-- 1 1001 geograph 207421516 2010-02-24 09:22 worcester.MR<br>
-rw-r--r-- 1 1001 geograph 585550792 2010-02-24 09:11 worcester.tif<br>
<br>
<br>
<blockquote type="cite">zls@gl1:/home/gisortho/t4a/breederivier$
gdalinfo 3319bc23.tif<br>
Driver: GTiff/GeoTIFF<br>
Files: 3319bc23.tif<br>
Size is 7259, 7256<br>
Coordinate System is:<br>
GEOGCS["WGS 84",<br>
DATUM["WGS_1984",<br>
SPHEROID["WGS 84",6378137,298.2572235629972,<br>
AUTHORITY["EPSG","7030"]],<br>
AUTHORITY["EPSG","6326"]],<br>
PRIMEM["Greenwich",0],<br>
UNIT["degree",0.0174532925199433],<br>
AUTHORITY["EPSG","4326"]]<br>
Origin = (19.598375571136735,-33.448385541900883)<br>
Pixel Size = (0.000007335933852,-0.000007335933852)<br>
Metadata:<br>
AREA_OR_POINT=Area<br>
Image Structure Metadata:<br>
INTERLEAVE=PIXEL<br>
Corner Coordinates:<br>
Upper Left ( 19.5983756, -33.4483855) ( 19d35'54.15"E, 33d26'54.19"S)<br>
Lower Left ( 19.5983756, -33.5016151) ( 19d35'54.15"E, 33d30'5.81"S)<br>
Upper Right ( 19.6516271, -33.4483855) ( 19d39'5.86"E, 33d26'54.19"S)<br>
Lower Right ( 19.6516271, -33.5016151) ( 19d39'5.86"E, 33d30'5.81"S)<br>
Center ( 19.6250013, -33.4750003) ( 19d37'30.00"E, 33d28'30.00"S)<br>
Band 1 Block=7259x1 Type=Byte, ColorInterp=Red<br>
Band 2 Block=7259x1 Type=Byte, ColorInterp=Green<br>
Band 3 Block=7259x1 Type=Byte, ColorInterp=Blue<br>
zls@gl1:/home/gisortho/t4a/breederivier$ </blockquote>
<br>
<br>
<blockquote type="cite">zls@gl1:/home/gisortho/t4a/breederivier$
gdalinfo bc23.tif<br>
Driver: GTiff/GeoTIFF<br>
Files: bc23.tif<br>
Size is 9688, 10117<br>
Coordinate System is:<br>
PROJCS[<font color="#ff0000"><b>"UTM Zone -34, Northern Hemisphere"</b></font>,<br>
GEOGCS["WGS 84",<br>
DATUM["WGS_1984",<br>
SPHEROID["WGS 84",6378137,298.2572235629972,<br>
AUTHORITY["EPSG","7030"]],<br>
AUTHORITY["EPSG","6326"]],<br>
PRIMEM["Greenwich",0],<br>
UNIT["degree",0.0174532925199433],<br>
AUTHORITY["EPSG","4326"]],<br>
PROJECTION["Transverse_Mercator"],<br>
PARAMETER["latitude_of_origin",0],<br>
PARAMETER[<b><font color="#ff0000">"central_meridian",-387</font></b>],<br>
PARAMETER["scale_factor",0.9996],<br>
PARAMETER["false_easting",500000],<br>
PARAMETER["<font color="#ff0000"><b>false_northing",0</b></font>],<br>
UNIT["metre",1,<br>
AUTHORITY["EPSG","9001"]]]<br>
Origin = (4985652.260930398479104,-4864755.980756304226816)<br>
Pixel Size = (0.945609074139101,-0.945609074139101)<br>
Metadata:<br>
AREA_OR_POINT=Area<br>
Image Structure Metadata:<br>
INTERLEAVE=PIXEL<br>
Corner Coordinates:<br>
Upper Left ( 4985652.261,-4864755.981) ( 18d25'30.82"E, 33d43'5.31"S)<br>
Lower Left ( 4985652.261,-4874322.708) ( 18d26'54.45"E, 33d46'51.98"S)<br>
Upper Right ( 4994813.322,-4864755.981) ( 18d28'22.86"E, 33d41'23.95"S)<br>
Lower Right ( 4994813.322,-4874322.708) ( 18d29'45.37"E, 33d45'10.62"S)<br>
Center ( 4990232.791,-4869539.344) ( 18d27'38.64"E, 33d44'7.92"S)<br>
Band 1 Block=9688x1 Type=Byte, ColorInterp=Red<br>
Band 2 Block=9688x1 Type=Byte, ColorInterp=Green<br>
Band 3 Block=9688x1 Type=Byte, ColorInterp=Blue<br>
zls@gl1:/home/gisortho/t4a/breederivier$ </blockquote>
<br>
<br>
Reference image:<br>
<br>
<blockquote type="cite">zls@gl1:/home/gisortho/t4a/breederivier$
gdalinfo worcester.tif<br>
Driver: GTiff/GeoTIFF<br>
Files: worcester.tif<br>
Size is 15556, 12545<br>
Coordinate System is:<br>
PROJCS["WGS 84 / UTM zone 34S",<br>
GEOGCS["WGS 84",<br>
DATUM["WGS_1984",<br>
SPHEROID["WGS 84",6378137,298.2572235629972,<br>
AUTHORITY["EPSG","7030"]],<br>
AUTHORITY["EPSG","6326"]],<br>
PRIMEM["Greenwich",0],<br>
UNIT["degree",0.0174532925199433],<br>
AUTHORITY["EPSG","4326"]],<br>
PROJECTION["Transverse_Mercator"],<br>
PARAMETER["latitude_of_origin",0],<br>
PARAMETER["central_meridian",21],<br>
PARAMETER["scale_factor",0.9996],<br>
PARAMETER["false_easting",500000],<br>
PARAMETER["false_northing",10000000],<br>
UNIT["metre",1,<br>
AUTHORITY["EPSG","9001"]],<br>
AUTHORITY["EPSG","32734"]]<br>
Origin = (352199.486889008665457,6280000.033236353658140)<br>
Pixel Size = (0.597834417917855,-0.597834417917858)<br>
Metadata:<br>
AREA_OR_POINT=Area<br>
Image Structure Metadata:<br>
INTERLEAVE=PIXEL<br>
Corner Coordinates:<br>
Upper Left ( 352199.487, 6280000.033) ( 19d24'24.68"E, 33d36'34.29"S)<br>
Lower Left ( 352199.487, 6272500.200) ( 19d24'20.20"E, 33d40'37.72"S)<br>
Upper Right ( 361499.399, 6280000.033) ( 19d30'25.45"E, 33d36'38.79"S)<br>
Lower Right ( 361499.399, 6272500.200) ( 19d30'21.25"E, 33d40'42.23"S)<br>
Center ( 356849.443, 6276250.117) ( 19d27'22.89"E, 33d38'38.30"S)<br>
Band 1 Block=15556x1 Type=Byte, ColorInterp=Red<br>
Band 2 Block=15556x1 Type=Byte, ColorInterp=Green<br>
Band 3 Block=15556x1 Type=Byte, ColorInterp=Blue<br>
zls@gl1:/home/gisortho/t4a/breederivier$ </blockquote>
<br>
TIA,<br>
Zoltan<br>
<br>
<br>
<br>
<pre class="moz-signature" cols="72">--
===========================================
Zoltan Szecsei
Director
Geograph (Pty) Ltd.
P.O. Box 7, Muizenberg 7950, South Africa.
65 Main Road, Muizenberg 7945
Western Cape, South Africa.
34° 6'16.35"S 18°28'5.62"E
Tel: +27-21-7884897 Mobile: +27-83-6004028
Fax: +27-86-6115323 <a class="moz-txt-link-abbreviated" href="http://www.geograph.co.za">www.geograph.co.za</a>
===========================================</pre>
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