[mapserver-users] MapCache and a transparent layer

[thomas bonfort]

James,
If you're accessing mapcache through untiled WMS calls (which is
probably the case), then the format used by mapcache for returning
images is defined in the wms service block
(https://github.com/mapserver/mapcache/blob/branch-1-2/mapcache.xml.sample#L819
, https://github.com/mapserver/mapcache/blob/branch-1-2/mapcache.xml.sample#L855
). You can set it to jpeg if you are serving data with no
transparency, or png in your case.

--
thomas

On 2 November 2013 03:58, James_in_Utah <James.Evans at hill.af.mil> wrote:
> Hi,
> I'm trying to get mapchache working, and I have one layer that I can not
> figure out.  I have a states boundaries layer, all vector data, and it works
> fine when reading from the WMS.  I added it as a layer in my mapcache.xml,
> and I can not get it to be transparent.  I've added
> <TRANSPARENT>true</TRANSPARENT> to the params in the source.  If I look at
> the .png files that are stored in the cache, they appear to be transparent,
> but when my client tries to display the boundaries, they have a black
> background and obscure the other layers.  If I look in the cache of my
> client, at the.dds files that it saves, they all have a black background.
> If I look at the.dds files the client saves when hitting the WMS directly,
> they appear to have a transparent background.  Below are my source, and
> tileset from the mapcache.xml.  Any help on this would be appreciated.
> Thanks!
> James
>
>    <source name="RADESWMS States" type="wms">
>       <http>
>          <url>http://127.0.0.1/cgi-bin/radeswms.exe</url>
>       </http>
>       <getmap>
>          <params>
>             <FORMAT>image/png</FORMAT>
>             <LAYERS>States</LAYERS>
>             <TRANSPARENT>true</TRANSPARENT>
>          </params>
>       </getmap>
>    </source>
>
>    <tileset name="States">
>       <source>RADESWMS States</source>
>       <cache>disk</cache>
>       <format>PNG_FAST</format>
>       <grid>WGS84</grid>
>    </tileset>
>
>
>
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.nabble.com/MapCache-and-a-transparent-layer-tp5087059.html
> Sent from the Mapserver - User mailing list archive at Nabble.com.
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users