Jan,<br><br>You need to assign not only the projection of the source file but also the geographical extents. The easiest way to do this is by adding GCPs to it using the -gcp option of gdal_translate to create a new tif file. Use the four corners of the image. Remember that the top left of the top left pixel is (0,0) and bottom right of the bottom right pixel is (width,height).<br>
<br><div class="gmail_quote">On Tue, Oct 25, 2011 at 3:33 PM, Jan Tappenbeck <span dir="ltr"><<a href="mailto:tappenbeck@widemann.de">tappenbeck@widemann.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br>
<br>
hi<br>
<br>
i try to transform a rasterimage with following command:<br>
<br>
gdalwarp -s_srs EPSG:25832 -t_srs EPSG:31466 [Path]\DOP_3905470.tif [Path]\DOP_3905470_trans.tif<br>
<br>
the message is ...<br>
<br>
C:\Program Files (x86)\FWTools2.4.7>gdalwarp -s_srs EPSG:25832 -t_srs EPSG:31466<br>
[Path]\DOP_3905470.tif [Path]\DOP_3905470_trans.tif<br>
ERROR 1: Unable to compute a transformation between pixel/line<br>
and georeferenced coordinates for [Path]\DOP_3905470.tif.<br>
There is no affine transformation and no GCPs.<br>
<br>
and the data of the source:....<br>
<br>
Driver: GTiff/GeoTIFF<br>
Files: [Path]\DOP_3905470.tif<br>
Size is 10000, 10000<br>
Coordinate System is `'<br>
Image Structure Metadata:<br>
INTERLEAVE=PIXEL<br>
Corner Coordinates:<br>
Upper Left ( 0.0, 0.0)<br>
Lower Left ( 0.0,10000.0)<br>
Upper Right (10000.0, 0.0)<br>
Lower Right (10000.0,10000.0)<br>
Center ( 5000.0, 5000.0)<br>
Band 1 Block=10000x1 Type=Byte, ColorInterp=Red<br>
Band 2 Block=10000x1 Type=Byte, ColorInterp=Green<br>
Band 3 Block=10000x1 Type=Byte, ColorInterp=Blue<br>
<br>
can anybody help me ?<br>
<br>
regards Jan .-)<br>
<br>
-- <br>
<br>
Freundliche Grüße<br>
i.A. Jan Tappenbeck<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Best regards,<br>Chaitanya kumar CH.<br><br>+91-9494447584<br>17.2416N 80.1426E<br>