[Mapserver-users] Dataset with 120'000 tiles

Paul Ramsey pramsey at refractions.net
Wed Jan 14 13:15:29 PST 2004


Probably the folks at Topozone have.
First, make sure you have a shapeindex file that provides a quick way 
for mapserver to figure out what tiles are useful for a particular map. 
Make sure you build an index file (.qix) for that shapeindex file.
Finally, formats like TIFF are way faster than formats like JPG/PNG/GIF. 
This is because TIFF can be partially accessed (give me the top 20% of 
the file) way faster than JPEG, which has to be completely decompressed 
before it can be accessed.
Paul

Flavio Hendry wrote:

> hi list
> 
> anybody worked with such a dataset (120'000 raster tiles) ? 
> are there any performance issues ?
> 
> thx.
> 
> Mit freundlichem Gruss / Best Regards
> Flavio Hendry
> 
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