I see. Just for curiosity: why was png/gd dropped and wouldn't it be an
idea to add an option to generate automatically a palette for png 8?
Paletted output is still very useful for choropleth maps.
Jan
On 01/03/2012 04:05 PM, Lime, Steve D (DNR) wrote:
GD is for GIF only in 6.0+. To get paletted output you can set:
-IMAGETYPE GIF (GD-based)
-IMAGETYPE PNG (AGG 8-bit)
-Setup an output format with like Rich G. mentioned
-Setup an output format that forces use of a pre-defined palette
OUTPUTFORMAT
NAME png8
DRIVER "AGG/PNG"
MIMETYPE "image/png"
IMAGEMODE RGB
EXTENSION "png"
FORMATOPTION "INTERLACE=OFF"
FORMATOPTION "PALETTE_FORCE=TRUE"
FORMATOPTION
"PALETTE=/usr/local/mapserver/apps/mr/compass/compass.palette"
END
Steve
*From:*[email protected]
[mailto:[email protected]] *On Behalf Of *Jan
Hartmann
*Sent:* Monday, January 02, 2012 10:45 AM
*To:* [email protected]
*Subject:* [mapserver-users] Can't get 8-bit palette output
Happy New Year, all.
I'm porting my applications from MapServer 5.7 to 6.0.1, and I am
unable to get 8-bit palette output. The MapScript commands are:
$oMap->outputformat->set('driver','GD/PNG');
$oMap->outputformat->set('imagemode',MS_IMAGEMODE_PC256);
which give me the following warning, and no image:
*Warning*: mapObj::draw() [mapobj.draw
<http://mapserver.sara.nl/calligo/zl/maps/k1832/mapobj.draw>]:
[MapServer Error]: agg2CreateImage(): AGG2 driver only supports RGB or
RGBA pixel models
I tried every combination I coud think of, with GIF and GDAL, and got
always the same result. MapServer was compiled with gd-support:
MapServer version 6.0.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=ICONV
SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=THREADS SUPPORTS=GEOS
INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
Any idea, someone?
Jan
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