Hi Nils,
do you have any chance to share somehow with us the sample datasets which
raise this issue (or a reduced part of them) so we can better check the
mosaicking of them?
Daniele
On Thu, Oct 28, 2010 at 9:48 AM, Nils Weinander <[email protected]>wrote:
> I have created a set of image mosaics in GeoServer 1.7.7
> (using the GDAL method). The resulting layers are superimposed
> for viweing at different scales. In the WMS call, the layers
> are ordered with the most general at the bottom and the most
> detailed on top.
>
> Generally this works OK after I have set OutputTransparentColor
> and InputTransparentColor for the "upper" layers (since these
> do not cover the entire map extent, in general each layer covers
> less area than the next below).
>
> But, I run into problems with an intermediate layer where
> there is no data. If the GetMap request is for an extent where
> the intermediate layer GEM:SjokortSkar has data for at least
> a part, everything works fine. As soon as I issue a GetMap for
> and area where this layer has no data, I get a black image for
> GEM:SjokortSkar.
>
> Using Format=application/openlayers I can click the map and
> get some feature info. When there is partial cover for this
> layer I get
>
> PALETTE_INDEX 0.0
>
> for the area where there is data and
>
> GRAY_INDEX 0.0
> UNDEFINED 255.0
>
> where there is no data. On a map image where there is no
> data for this layer I get
>
> GRAY_INDEX 0.0
> UNDEFINED 255.0
>
> So, I guess the question is, how do I make GRAY_INDEX 0
> transparent alongside PALETTE_INDEX 0?
>
> --
> mogul | nils weinander |
> hudiksvallsgatan 4 113 30 stockholm sweden |
> +46 8 4100 6456 | +46 709 78 28 37 |
> [email protected] | skype: nils.weinander |
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>
>
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--
-------------------------------------------------------
Ing. Daniele Romagnoli
Software Engineer
GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584962313
fax: +39 0584962313
mob: +39 328 0559267
http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
-------------------------------------------------------
------------------------------------------------------------------------------
Nokia and AT&T present the 2010 Calling All Innovators-North America contest
Create new apps & games for the Nokia N8 for consumers in U.S. and Canada
$10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
http://p.sf.net/sfu/nokia-dev2dev
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