Garry,
> I have a large number of TIFF files that have MapINFO TAB files
> associated for georeferencing. Is there a way I can use FME to
> create TFW (for use with ESRI products)? I see there is a TFW
> keyword in the GeoTIFF writer, but I don't want to regenerate the
> images.
Well, TFW is essentially a text file (CSV) that has the following structure:
Line 1: Size of each pixel in the X dimension in map units.
Line 2: Image compression in the X dimension.
Line 3: Image compression in the Y dimension.
Line 4: Negative size of each pixel in the Y dimension in map units.
Line 5: X coordinate of centre of the top left corner (northwest) of the
image.
Line 6: Y coordinate of centre of the top left corner (northwest) of the
image.
Therefore a sample image reference file could be constructed as follows.
0.012773
0.0
0.0
-0.012773
108.343947
7.775275
Note that the X and Y coordinates are in lat long. If your image is not
in lat long you will be required to enter coordinates appropriate for
the projection system used in the image. These are likely to not be
decimal degree values.
All of this information should be relatively easy to generate using FME.
Just make a CSV writer, one column. Don't write out column names and
don't quote anything. That should do the trick.
Hope this helps.
--
Hans van der Maarel
Red Geographics
www.redgeographics.com / [EMAIL PROTECTED]
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