[mapserver-users] Fwd: Examples using tiffs

[Lowell Filak]

I think there are quite a few sites out there that use tiff's. If you end up needing a sample just ask, but I think your problem may be in the data somewhere. If you have ImageMagick available do 'display <tiff_file_name>' and then Miscellany->Image Info and look under the Image: portion for colors: if it is over 256 then do 'convert -colors 256 <in_tiff_file_name> <out_tiff_file_name>'.
We had a similar problem where our images where specified as 8-bit but were not classified down to 256 colors and the raster layer would not display. The best part about it was that we could not detect ANY visual difference between images but yet the reclassified image was 1/3 the size of the original (which was nice after starting out at 38GB).
Hope that helps.
Lowell F.

The following message was sent by "Steve Lime" <steve.lime at dnr.state.mn.us> on Fri, 12 Apr 2002 10:36:27 -0500.

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> Subject: Examples using tiffs
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>    1.)  	I read about an example called landsat (that uses tiffs), but I
> can't find a link to it anywhere.
>             Can anybody tell me where I can get it or send a zipped copy of
> it to my mail adress?
> 
>    2.)     Are there other examples using tiffs available? I need a tiff and
> a corresponding word file
>             that is known to work with mapserver.
> 
>    3.)     	I have the problem that my tiff does not show up.
>      	It is an 8 Bit uncompressed tiff with size 600 x 600.
> 
> 	I used a world file like this:
> 	0.6
> 	0.0000000000
> 	0.0000000000
> 	-0.6
> 	400000.00
> 	5255555.00
> 
> 	To try it, I replaces the background layer of the itasca example by this
> layer definition:
> 	LAYER
> 	  NAME ctybdpy2
> 	  TYPE RASTER
> 	  STATUS DEFAULT
> 	  DATA test.tif
> 	END
> 
> 	Has anybody an idear what I can do?
> 
>     Thanks, Nicole.
> 
> ----------------------------------------------------------------------------
> ------------------------------------------------------------------
> 
>     Nicole Bömeke
>     IVV Aachen
>     Germany
>     bon at ivv-aachen.de
>