[mapserver-users] mapserver produces interlaced PNGs even if I configured the map to output noninterlaced PNGs

[Rahkonen Jukka]

Hi,
 
It is possible that rendering does not go through agg.  I am not sure, but perhaps by adding
MIMETYPE "image/png2"
to outputformat and calling either &FORMAT=image/png2 or &FORMAT=image/png
you could do some comparisons.
 
-Jukka Rahkonen-


________________________________

	Lähettäjä: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-bounces at lists.osgeo.org] Puolesta Adrian Popa
	Lähetetty: 14. lokakuuta 2009 16:36
	Vastaanottaja: mapserver-users at lists.osgeo.org
	Aihe: [mapserver-users] mapserver produces interlaced PNGs even if I configured the map to output noninterlaced PNGs
	
	
	Hello all, 
	
	My goal is to setup tilecache (which is proving to be a real pain), and so far I've noticed that even if I configured my map to generate noninterlaced PNGs (instructions here: http://www.mapserver.org/faq.html#why-doesn-t-pil-python-imaging-library-open-my-pngs), it still generates interlaced PNGs.
	
	Here is my outputformat (the only one defined) in my map:
	OUTPUTFORMAT
	    NAME 'AGG'
	    DRIVER AGG/PNG
	    IMAGEMODE RGBA
	    TRANSPARENT ON
	    FORMATOPTION "INTERLACE=OFF"
	END
	
	The parameters that get sent to my mapserver instance are:
	
BBOX	 2896046.12635,5831228.011975,2935181.884825,5870363.77045	
EXCEPTIONS	 application/vnd.ogc.se_inimage	
FORMAT	 png	
HEIGHT	 256	
LAYERS	 Judete,RuralSate,Rural,Urban,roads,roads-buc,buildings,GranitaJudete	
MAP	 /var/www/html/map/rtc_base.map	
MAP_IMAGETYPE	 agg	
MAXEXTENT	 left-bottom=(20.26,43.16) right-top=(29.7,48.46)	
MAXRESOLUTION	 156543	
REQUEST	 GetMap	
SERVICE	 WMS	
SRS	 EPSG:900913	
STYLES	 
	
TRANSITIONEFFECT	 resize	
TRANSPARENT	 false	
UNITS	 m	
VERSION	 1.1.1	
WIDTH	 256	

	I'm not sure if MAP_IMAGETYPE=agg is the one which selects the outputformat or not, but the map seems to be rendered with AGG (I could be wrong, of course).
	
	So, what am I missing here? Is there another parameter that should be sent to mapserver to select the outputformat?
	
	By the way, the image file generated has these properties: img.png: PNG image, 256 x 256, 8-bit colormap, interlaced
	
	Thanks,
	Adrian
	
	

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