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

[Adrian Popa]

Thanks Jukka,

I added MIMETYPE "image/png2" to my OUTPUTFORMAT and I called with 
FORMAT=image/png2, and now, the PNGs are non-interlaced!

I don't really understand what the difference is, but  I'm glad it works.

Thanks again... now I only have to figure out why tilecache isn't 
working yet...

Rahkonen Jukka wrote:
> 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-
>
>     ------------------------------------------------------------------------
>     *L�hett�j�:* mapserver-users-bounces at lists.osgeo.org
>     [mailto:mapserver-users-bounces at lists.osgeo.org] *Puolesta *Adrian
>     Popa
>     *L�hetetty:* 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
>


-- 
--- 
Adrian Popa
NOC Division
Network Engineer
Divizia Centrul National de Operare Retea
Departament Transport IP & Metro
Compartiment IP Core & Backbone
Phone: +40 21 400 3099

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