On Dec 31, 2010, at 8:33 AM, Sisyphos wrote: > 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.
Mapnik will use the shapefile index automatically if it exists. > > So: > (1) Do I have to set a flag within my xml file to explain mapnik to > use that .index files? No. > (2) Or do I need to use the parameters "max tree depth" and/or "split > ratio"? No, defaults should be just fine. > But I'm very sorry. I have no what that means, and what could > help to improve rendering my files. > How are you rendering the tiles? What operating system? How much ram/cpus? How complex are your styles? > 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 >> >>> >>> ___________________________________________ >>> Mapnik-users mailing list >>> [email protected] >>> https://lists.berlios.de/mailman/listinfo/mapnik-users >> >> >> _______________________________________________ >> Mapnik-users mailing list >> [email protected] >> https://lists.berlios.de/mailman/listinfo/mapnik-users >> >> > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
