[pgrouting-users] problem with length geometries

[Bryan Hempen]

hello!

i would to know how osm2pgrouting calculates the length of geometries, i 
did not find it in the code.

the reason for that is that the column length of table ways shows a 
different value as postgis's ST_length(length). try this:

select ST_length(the_geom), length from ways

can anyone explain that to me?

thanks,
Bryan