[OSM-talk] magical road detector to play with

Chris Browet cbro at semperpax.com
Mon Feb 14 15:13:22 GMT 2011


Wouldn't it be easier for clients to just return the querying values as
start and end node?

- Chris -

On Mon, Feb 14, 2011 at 15:26, John-Michael Wiley <jmwiley at microsoft.com>wrote:

>  I think they are actually the same, the return results are simply rounded
> to the nearest 10 millionth of a degree. We could keep more digits if
> needed. In my editor prototype I simply do a small delta comparison. We can
> modify the code to keep more significant digits if need be.
>
>
>
> J.M.
>
>
>
> *From:* christian.browet at gmail.com [mailto:christian.browet at gmail.com] *On
> Behalf Of *Chris Browet
> *Sent:* Monday, February 14, 2011 3:12 AM
> *To:* John-Michael Wiley
> *Cc:* talk at openstreetmap.org
>
> *Subject:* Re: [OSM-talk] magical road detector to play with
>
>
>
>
>
> On Mon, Feb 14, 2011 at 03:25, John-Michael Wiley <jmwiley at microsoft.com>
> wrote:
>
> Not sure that was helpful.
>
> Anyway, I updated the staging servers with a new build that hopefully
> addresses the issues. Give it a try and let me know if you any issue.
>        - modified osmchange to osmChange
>        - removed the bounds
>
> http://3667a17de9b94ccf8fd278f9de62dae4.cloudapp.net/
>
> Hi,
> The format looks fine, thanks.
>
> Now, I have a more bugging "functional" issue:
> None of the 2 set of coordinates I specify are part of the way which is
> returned.
>
> This can be see with just the example on the page: Click "Go" and none of
> the node returned = the input nodes.
>
> Assuming a workflow of:
> 1) create 2 nodes on existing distant roads
> 2) Run Bing detector with these 2 points to join the roads
>
> Result will be unconnected roads. The start and end nodes coordinates of
> the returned road do not match the input point.
> The difference is in the order of centimeters, but still, that would force
> to implement some "duplicate node in a given radius" logic quite
> unnecessarily...
>
> Possible solution: Assume that start and end of returned way correspond to
> the input coordinates.
> Is that right?
>
> - Chris -
>
>
>
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