On Wed, Apr 20, 2011 at 8:18 AM, Robert Buckley
<robertdbuck...@yahoo.com> wrote:
> Hi,
>
> There are many threads which explain how to create an imagemosaic or
> pyramid, but not so many regarding the preparation of the raw data.
>
> I have ~1300 orthophotos which have been bought for desktop use in ArcGIS.
>
> Resolution (X,Y) =  0,4m, 0,4m
> columngs/rows = 5003 x 5003
> total Area = 2km x 2km (4km²)
> Format = TIFF
> Size = ~70mb
>
> total size of region: 5000km²
>
> I have been asked if I can serve these with geoserver. The alternative seems
> to be the purchase of ArcServer which is a cop-out in my view!
>
> My first problem is the preparation.
>
> 1. Transform all photos into wgs84
> 2. Convert to geoTIFFs
>
> and now i´m a bit lost! what are my choices to take this further?
> 1. Do I have to convert 1300 photos using the gdal_retile and upload them
> into geoserver?

5000x5000 is "small", not worth doing a pyramid, stick with geotiffs
with overviews (if they are too big just slice them in a few parts so that
they don't become bigtiffs and have GeoServer treat them as a mosaic).

> I can´t image having to upload 1300 pyramid stores into geoserver!

I've seen deploys with 160000 layers, they appear to be working fine
They take quite a bit of time to start up of course, and people organized
the data in different workspaces so that they can use virtual services
to avoid serving back a caps document with 160000 layer descriptions
inside, plus they have an associated OGC catalog to ease search
for a layer in the server.

That said, these images, are they in some way associated with each other?
Like same area different times?

Cheers
Andrea

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Ing. Andrea Aime
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