On Wed, Nov 11, 2009 at 11:26 PM, Ian Dees <[email protected]> wrote: > On Wed, Nov 11, 2009 at 10:17 PM, Apollinaris Schoell <[email protected]> > wrote: >> >> On Wed, Nov 11, 2009 at 7:19 PM, Anthony <[email protected]> wrote: >>> >>> On the other hand, putting the information directly on the way would >>> be problematic for many reasons. Ranges might span multiple ways, and >>> right/left has to be reversed whenever the way is reversed being the >>> most troublesome. >>> >> this is enough reason to stay away from such a scheme. if it's too >> difficult no one will use it or they will break the data. >> > This scheme works for all of the places that I'm sourcing data from... they > have line segments that are tagged with the left/right-begin/end addresses. > Each road is broken up into line segments that have different address > values.
I'm not sure what your data is like, but the Tiger data inaccurately splits the address ranges when it needs to split a segment. In other words, if a road goes from 2 to 100, and it needs to be split in half, Tiger blindly splits the segments up as 2 - 48 and 50-100 *without even checking if this is correct*. _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
