[mapserver-users] Split large tiffs (topos) like TopoZone
dems at terra.sdimaps.com
Fri Oct 19 08:36:10 EDT 2001
On Fri, 19 Oct 2001, Stephen Lime wrote:
> Ed is quite correct (he should be, it's his site). I did the same
> thing for Minnesota (maps.dnr.state.mn.us/tomo, ~300,000 images) and
> it works very well. That script is simple perl script that doesn't use
> MapServer. However, I did use perl and MapScript to compute the 300k
> images (I think I still have the script if anyone want to take a
> look). Took a day. Can MapServer and the TOMO server work together?
^^^^^^^^^^ I'd like a look!
> Possibly but you'd be bound by the non-MapServer application because
> of the nature of the underlying data.
> Again, TOMO and TopoZone are built to serve one layer very fast, but
> I've been using the exact same datasets (quad-based DRGs) that the
> little images were computed from in a tiled fashion to support a much
> broader range of scales and applications with great success and by
> managing a few thousand images instead of a few hundred thousand. I
> can only imagine what the TopoZone folks go through with 17 million
> images and all the projection headaches.
> Stephen Lime
> Data & Applications Manager
AM/FM/GIS Technical Support
Spatial Data Integrations, Inc.
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