[Geoserver-devel] Raster Symbolizer to set a range of values to transparent

I am sure this issue has come up before while using the mosaic plugin etc
(which assumes that the background value is 0.0). My particular issue is in
creating aerial imagery layer groups or even mosaics from ECW's.

Though I prefer not to use ECW's, sometimes I have to. ECW is lossy and has
imperfect black. I would like some mechanism to set a range of values near 0
(say 0-10) to transparent either via something in the mosaic plugin or the
rastersymbolizer.

Is there any SLD specification to make this possible ? If not I would like
some pointers for hacking the mosaicplugin. The corresponding issue is:
http://jira.codehaus.org/browse/GEOS-3654

Cheers,

what_nick.
--
View this message in context: http://old.nabble.com/Raster-Symbolizer-to-set-a-range-of-values-to-transparent-tp26346189p26346189.html
Sent from the GeoServer - Dev mailing list archive at Nabble.com.

Ciao,
notice that the background value can be configured, anyway check the
jira report to see my comment.

Simone.
-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Founder - Software Engineer
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax: +39 0584983027
mob: +39 333 8128928

http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------

On Sat, Nov 14, 2009 at 2:26 AM, whatnick
<tisham@anonymised.com> wrote:

I am sure this issue has come up before while using the mosaic plugin etc
(which assumes that the background value is 0.0). My particular issue is in
creating aerial imagery layer groups or even mosaics from ECW's.

Though I prefer not to use ECW's, sometimes I have to. ECW is lossy and has
imperfect black. I would like some mechanism to set a range of values near 0
(say 0-10) to transparent either via something in the mosaic plugin or the
rastersymbolizer.

Is there any SLD specification to make this possible ? If not I would like
some pointers for hacking the mosaicplugin. The corresponding issue is:
http://jira.codehaus.org/browse/GEOS-3654

Cheers,

what_nick.
--
View this message in context: http://old.nabble.com/Raster-Symbolizer-to-set-a-range-of-values-to-transparent-tp26346189p26346189.html
Sent from the GeoServer - Dev mailing list archive at Nabble.com.

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Geoserver-devel mailing list
Geoserver-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-devel