[Mapserver-users] 24Bit tiff images displayed in greyscale (no bug 270) and no png files are displayed

[Pericles S. Nacionales]

Have you tried specifying "IMAGETYPE PNG24" instead of defining the
outputformat?  Or try changing the driver to "GD/PNG24"?

Try the first option and see it it works for you.  I don't know if the
driver bit is correct or not as I never have to do it.

Good luck!
-Perry N.

On Fri, 2003-08-22 at 03:47, Michael Härtel wrote:
> Hello World!
> 
> GIVEN:
> 
> precompiled MAPSERVER on WINDOWS XP
> (from mapserver-4.0-win32-php4.3.2.zip):
> 
> MapServer version 4.0 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
> OUTPUT=PDF OUTPUT=SWF SUPPORTS=PROJ SUPPORTS=FREETYPE
> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
> SUPPORTS=WFS_CLIENT INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
> 
> MAPSCRIPT:
> ($Revision: 1.177 $ $Date: 2003/07/30 19:01:31 $)
> 
> GD2 LIBRARY (from phpinfo()):
> GD Support enabled
> GD Version bundled (2.0.12 compatible)
> 
> MAPFILE:
> ---
> OUTPUTFORMAT
>       NAME png
>       DRIVER "GD/PNG"
>       MIMETYPE "image/png"
>       IMAGEMODE RGB
>       TRANSPARENT OFF
>       EXTENSION "png"
> END
> 
> - snip!-
> 
> LAYER
> 	PROJECTION
> 		proj=longlat
> 		ellps=WGS84
> 		datum=WGS84
> 		no_defs
> 	END
> 	
> 	NAME "test"
> 	STATUS OFF
> 	data "test.png" ### a 24Bit PNG or tif image with world file
> 	TYPE RASTER
> 	GROUP "raster background"
> 		CLASS
> 			NAME "test" // only to generate legend entry
> 		END
> END
> ---
> 
> PROBLEMS:
> 
> 1.) 24Bit tiff images are displayed in grayscale although output is RGB
> PNG and GD2 is obviously used. I know about "bug" No 270
> (http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=270) but even if i
> leave out the class defining lines within the mapfile no image is
> produced (empty map).
> 
> 2.) PNG files are not displayed (24 and 8 bit), they are simply empty, a
> white image returns.
> They seem to be drawn (the legend has an entry for that raster layer),
> no error messages available.
> My reference map is a png image and the entire map output works fine
> with png images as long as no png images are included in layer definitions.
> 
> QUESTION:
> 
> How can i convince mapserver to display 24Bit images (tiff or png)?
> 
> 
> 
> 
> _______________________________________________
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> Mapserver-users at lists.gis.umn.edu
> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
-- 
Pericles S. Nacionales <nacional at cbs.umn.edu>
University of Minnesota