Thank you for the fast replay,

Sorry I meant 800 MB. not GB...

I indexed all of the files with the default values and made a test
without any significant difference (it takes with or without that
.index files around 39 minutes to render a smaller test area from
zoomlevel 0 to 15. This is including the same files I need to render
the bigger area. This seems to me that the .index files are useless by
the default parameters or not uses by mapnik anyway.

So:
(1) Do I have to set a flag within my xml file to explain mapnik to
use that .index files?
(2) Or do I need to use the parameters "max tree depth" and/or "split
ratio"? But I'm very sorry. I have no what that means, and what could
help to improve rendering my files.

Bye, Sisyphos
>
>
> On 28 December 2010 17:43, Benjamin Bruecker <[email protected]> wrote:
>>
>> Hi,
>>
>> I'm currently rendering Esri shape files containing the area of
>> Germany from zoom level 0 to 17. The result should be tiles like
>> OpenStreetMap, but I use other data...
>>
>> The computer is now rendering from zoom level 0 to 16 more than a
>> week... and its still not ready.. I renderd the same area with an OSM
>> dump from a PostGIS database within 60 hours (this time meets my
>> requirements).
>>
>> I guess for my data a spatial index is necessary for rendering. Some
>> files are 800 GB big. For all of this files I have an shx-index file,
>> but test didn't show any difference between rendering with mapnik with
>> or without those shx files. I'm not sure about that, but it seems to
>> me that mapnik doesn't use them.
>>
>> What would you suggest? Maybe importing those files to PostGIS? Or
>> would you recommend to use other databases with spatial indexes that
>> are good supported by Mapnik?
>>
>> Thx,
>> Sisyphos
>> ____
>
> Hi  Sisyphos,
> ESRI index files are not supported. I suggest you use 'shapeindex' utility
> which comes with Mapnik distro to create index files. Run with -h(--help) to
> see program options.
> In case of very large shapefiles consider moving data to postgresql. Did you
> mean 800GB or 800Mb?
> Regards,
> Artem
>
>>
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