[gdal-dev] Re: [WISY-Spam]Re: Problems with transform raster image

[Chaitanya kumar CH]

Jan,

[1]: http://www.gdal.org/frmt_various.html#WLD

On Mon, Oct 31, 2011 at 8:39 PM, Jan Tappenbeck <osm at tappenbeck.net> wrote:

>
>
> Hi !
>
> this is a very strange way - i have tfw-file for the images.
>
> is there a possibility to integrate this information to the
> gdalwarp-command.
>
GDAL should automatically check for .tfw file. Check if the .tfw file is
according to the specified format[1].


>

in the web i only found the additional command -co tfw=yes - but then only
> a list of possible options will list !!!!!
>
The TFW=YES creation option is used to 'create' the world file while
creating new files.


> please help !
>
> regards Jan :-)
>
> Am 25.10.2011 14:40, schrieb Chaitanya kumar CH:
>
>> Jan,
>>
>> 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).
>>
>> On Tue, Oct 25, 2011 at 3:33 PM, Jan Tappenbeck <tappenbeck at widemann.de
>> <mailto:tappenbeck at widemann.de**>> wrote:
>>
>>
>>
>>      hi
>>
>>    i try to transform a rasterimage with following command:
>>
>>    gdalwarp -s_srs EPSG:25832 -t_srs EPSG:31466 [Path]\DOP_3905470.tif
>>    [Path]\DOP_3905470_trans.tif
>>
>>    the message is ...
>>
>>    C:\Program Files (x86)\FWTools2.4.7>gdalwarp -s_srs EPSG:25832
>>    -t_srs EPSG:31466
>>      [Path]\DOP_3905470.tif [Path]\DOP_3905470_trans.tif
>>    ERROR 1: Unable to compute a transformation between pixel/line
>>    and georeferenced coordinates for [Path]\DOP_3905470.tif.
>>    There is no affine transformation and no GCPs.
>>
>>    and the data of the source:....
>>
>>    Driver: GTiff/GeoTIFF
>>    Files: [Path]\DOP_3905470.tif
>>    Size is 10000, 10000
>>    Coordinate System is `'
>>    Image Structure Metadata:
>>      INTERLEAVE=PIXEL
>>    Corner Coordinates:
>>    Upper Left  (    0.0,    0.0)
>>    Lower Left  (    0.0,10000.0)
>>    Upper Right (10000.0,    0.0)
>>    Lower Right (10000.0,10000.0)
>>    Center      ( 5000.0, 5000.0)
>>    Band 1 Block=10000x1 Type=Byte, ColorInterp=Red
>>    Band 2 Block=10000x1 Type=Byte, ColorInterp=Green
>>    Band 3 Block=10000x1 Type=Byte, ColorInterp=Blue
>>
>>    can anybody help me ?
>>
>>    regards Jan .-)
>>
>>    --
>>
>>    Freundliche Grüße
>>    i.A. Jan Tappenbeck
>>
>>    Dipl. Vermessungsingenieur
>>    CAD-Systemberater&  AutoCAD-Support
>>
>>    Widemann Systeme GmbH
>>    CAD- und GIS-Systemhaus
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>>
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>>    Fon: 040 / 229477-22
>>    Fax: 040 / 229477-29
>>    tappenbeck at widemann.de <mailto:tappenbeck at widemann.de**>
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>>
>>
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>>
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>> >
>>
>>
>>    Widemann Systeme - aktuell:
>>
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>>    ... für Straßenbau, Bauwesen, ....
>>
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>>
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>>
>> --
>> Best regards,
>> Chaitanya kumar CH.
>>
>> +91-9494447584
>> 17.2416N 80.1426E
>>
>>
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>
>
>


-- 
Best regards,
Chaitanya kumar CH.

+91-9494447584
17.2416N 80.1426E
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