[Talk-us] Route Tagging Consensus

Richard Welty rwelty at averillpark.net
Mon Oct 25 20:11:47 BST 2010

On 10/25/10 2:58 PM, Emilie Laffray wrote:
> On 25 October 2010 12:49, Mike N. <niceman at att.net 
> <mailto:niceman at att.net>> wrote:
>     > Multiple is_in=* tags.
>        How is this different from the normal argument that is_in is
>     obsolete because the object is contained within an admin boundary
>     and the applicable is_in can be derived during a geo-query?
> +1
> If a polygon exists, the is_in information can be inferred easily 
> through a small preprocessing.
it's not small preprocessing if you're trying to do some bulk operation.

computing geometric intersections/containment is no big deal for small
data sets, but scales damn poorly.


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