[Tagging] Micro Mapping, was Race track

Roy Wallace waldo000000 at gmail.com
Thu Feb 4 00:04:08 GMT 2010


On Thu, Feb 4, 2010 at 8:32 AM, John Smith <deltafoxtrot256 at gmail.com> wrote:
> On 4 February 2010 07:22, Roy Wallace <waldo000000 at gmail.com> wrote:
>> It is one option for tagging width, but users would then still need to
>> make some assumption about the direction in which width is measured
>> (probably the bisection of the angle between previous/following nodes)
>> and interpolate between nodes (probably linearly).
>
> If you assume the node is the mid point of the way, width at that
> point is simply the width, and the width at the surrounding points is
> that width and the rest is just vector math.

I have no idea what you're talking about. This is my interpretation of
your idea, as it stands: http://www.myimgs.net/images/plxo.gif
If I've got the wrong idea, please draw a diagram of what you mean :)

>> It's also (at first glance) a very big change to the OSM data model.
>> There may be other problems, but that's the main one I can think of.
>
> Bigger than relations?

No idea.




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