[mapserver-users] Reclassify raster cell values

[Brent Fraser]

If you just want to make the black disappear you could use

MAP
IMAGECOLOR 255 255 255  #    set map's background color to white

LAYER
     TYPE RASTER
     OFFSITE 0 0 0    # make this color (black) of the input raster file 
transparent

Best Regards,
Brent Fraser

On 12/10/2012 9:51 AM, ALT SHN wrote:
> Hello Everyone,
>
> First time Mapserver user here, and I would appreciate some advice 
> regarding this problem:
>
> I have a Tile Index of single band TIFF rasters (0-255). The rasters 
> are displayer fast, and accuratly. However these rasters cover a sea 
> shore area, this means that half the rasters are sea territory, wich 
> is represented in black (0 cell values)
>
> Is there way, in the Mapfile to reclassify the 0 cells to 255 in order 
> to turn them white? I know I can always pre process the rasters, but 
> I'm talking about forty + files...
>
> Thanks in advance,
>
> Cheers,
>
> André Mano
>
> -- 
> ---------------------------------------------------------------
> Associação Leonel Trindade
> SOCIEDADE DE HISTÓRIA NATURAL
>
> Apartado 25 2564-909 Torres Vedras Portugal
> Sede e Biblioteca: rua Cavaleiros da Espora Dourada, 27A 2560 Torres 
> Vedras
>
> Laboratório de Paleontologia e Paleoecologia: Polígono Industrial do 
> Alto do Ameal 2565-641 Ramalhal
> http://alt-shn.blogspot.com
> www.alt-shn.org <http://www.alt-shn.org>
>
>
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/mapserver-users/attachments/20121215/b7c4f561/attachment.htm>