[MapServer-users] Mapserver>=8.0: Layer Composite Opacity

[Jörg Thomsen (WhereGroup)]

Hello Dieter,

this works with MS 8 on debian:

LAYER
     NAME 'buildings'
     TYPE POLYGON

     CONNECTIONTYPE postgis
     CONNECTION '...'
     DATA '...'

     METADATA
       'ows_title' 'buildings'
       'ows_srs'   'EPSG:4326'
     END

     COMPOSITE
         OPACITY 50
     END

     CLASS
       NAME 'Gebäude'
        STYLE
          WIDTH 1
          OUTLINECOLOR 0 0 0
          COLOR 255 150 50
        END
     END
END

http://schulung.foss.academy/cgi-bin/mapserv?map=opacity&layers=buildings&mode=map&map_imagetype=png&mapext=413024+5318200+414246+5319422

Can you show your layer definition?

regards, Jörg




Am 07.08.24 um 14:53 schrieb GOGIS Dieter Zuberbühler via MapServer-users:
> What happend to the 'Layer Composite Opacity' in Mapserver>=8.0? I
> tried several versions of Mapserver 8.x on Ubuntu 22.04 and 24.04 and
> had always the same result: 'Opacity on Layer Level' is ignored and the
> background layers are not visible.
> 
> I tried with map2img and phpng (swig), same result.
> 
> In the documentation it is still available and the mapfile is parsed
> correctly. I can get and set the opacity with php and it will be
> written down (save to mapfile) correctly.
> 
> Any hint, is this removed or a known problem?
> 
> Thank you in advance,
> 
> Dieter
> 
> 

-- 
Viele Grüße,
Jörg Thomsen

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Jörg Thomsen
WhereGroup GmbH
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joerg.thomsen at wheregroup.com
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