[GRASS-user] OSM, v.kernel, raster combination, id begint

[Christopher Braune]

Hello GRASS-Users,

I want to analyse the OSM data with GRASS (6.4.0RC5+39438) / Ubuntu 
10.04.4 LTS / PostGIS-database. I want to use the v.kernel function to 
create a density raster. In addition I want to combine this 
density-raster with a population density raster. I hope to find a 
correlation between the OSM density and the population density. There 
are anybody who have an idea to realize this raster-combination?

Another issue is the problem with the OSM object identifier in 
begint-dataype. GRASS only supports integer id's! Is it possible to 
modify GRASS?

Thank you!
Christopher