[OSGeo-Discuss] Re: [AtlanticCanada] Help building a tile cache from a large dataset of orthophotos

Sam Vekemans acrosscanadatrails at gmail.com
Fri Jun 10 05:39:07 PDT 2011

Koordinates.com offers hosting of orthophotos on their servers (as
they do for Land Information New Zealand),
there is also an API option available.
I don't know the detils, you'll just need to ask the developers of it.


On 6/10/11, Connors, Bernie (SNB) <Bernie.Connors at snb.ca> wrote:
> We have a data set of orthophotos.  The specs are:
> ·         51,971 images, (1.92 Terabytes total)
> ·         30 cm GSD
> ·         Cut in 2km x 2km grid
> ·         No overlap between images
> We are an ESRI shop and we are using version 9.31 on the desktop and the
> server.  We do not have the ESRI Image server extension.  To build a tile
> cache from the orthophotos we need to store the orthophoto data in an ESRI
> Raster data set.  This is proving to be very slow and problematic.  We have
> done this successfully in the past but with an older and smaller dataset
> (2000 images, 200 GB, 1 m GSD).
> Can somebody suggest an open source tool that can produce a tile cache that
> can be consumed by ArcGIS server 9.3.1?
> Thanks,
> Bernie.
> --
> Bernie Connors, P.Eng
> Manager - Spatial Data Infrastructure
> Land Information Secretariat
> Service New Brunswick
> Tel: 506-444-2077 Fax: 506-453-3898
> 45°56'25.21"N, 66°38'53.65"W
> bernie.connors at snb.ca<mailto:bernie.connors at snb.ca>
> www.snb.ca/geonb/<http://www.snb.ca/geonb/>

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