Layer Overviews

[Bruno Patini Furtado]

Thanks Ed, this information helps a lot. :)

On 8/7/06, Ed McNierney <ed at topozone.com> wrote:
>
>  Bruno -
>
> You don't configure it.  As long as your MapServer binary is using GDAL
> support to read GeoTIFF files, GDAL will look for and automatically use the
> overviews.  For a given map request there will be a certain input raster
> resolution desired.  GDAL will use the lowest-resolution overview that is
> not lower in resolution than the requested resolution.
>
>      - Ed
>
> Ed McNierney
> President and Chief Mapmaker
> TopoZone.com / Maps a la carte, Inc.
> 73 Princeton Street, Suite 305
> North Chelmsford, MA  01863
> Phone: +1 (978) 251-4242
> Fax: +1 (978) 251-1396
> ed at topozone.com
>
>  ------------------------------
> *From:* UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] *On
> Behalf Of *Bruno Patini Furtado
> *Sent:* Monday, August 07, 2006 3:06 PM
> *To:* MAPSERVER-USERS at LISTS.UMN.EDU
> *Subject:* [UMN_MAPSERVER-USERS] Layer Overviews
>
> Hi,
> I have successfully added internal overviews to a GeoTIFF image, which had
> its size increased from 270mb to 370mb, but I'm not finding where in the map
> file layer object where I configure this overviews.
>
> In order to create the internal overviews I've used the gdaladdo program.
>
> Any hint would be really appreciated!
>
> --
> "Minds are like parachutes, they work best when open."
>
> Bruno Patini Furtado
> Software Developer
> webpage: http://bpfurtado.net
> software development blog: http://bpfurtado.livejournal.com
>



-- 
"Minds are like parachutes, they work best when open."

Bruno Patini Furtado
Software Developer
webpage: http://bpfurtado.net
software development blog: http://bpfurtado.livejournal.com
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