[mkgmap-dev] found multiple points with equal coord.....

Sun May 2 09:46:09 BST 2021

Hi all,

the message
"Found multiple points with equal coords as CoordPOI at http://www.openstreetmap.org/?mlat=56.835675&mlon=37.404949&zoom=17"
is produced because the nodes
https://www.osm.org/node/2924385337
https://www.osm.org/node/2924351922
are so close together that mkgmap could not distinguish the position. No idea why someone maps a lift-gate less that close to the end of the road, but of course mkgmap should not fail with this.

The problem doesn't show up with the default style unless I add this line in points rules:
barrier=*{ addaccess no;}
after
barrier=* & access=* {addaccess '${access|subst:private=>no}'}
Without this change the default style doesn't create a route restriction for the barrier node https://www.openstreetmap.org/node/2924385337

I've created a patch to fix this problem for good by adding  a hashmap but GpsMapEdit doesn't like the result:
Unexpected format of input data. Unexpected NodeID=136381 in turn restriction at (56.835666 37.404950). The restriction will be ignored.

The old code didn't add the restriction, the new code does.
Now I am unsure if the "corrected" code causes more trouble than the old. Maybe I should somehow detect the special case that a barrier
is very close to an end of a way which is not connected to other ways? If I change the input data so that the end is a bit more away GpsMapEdit doesn't complain. Is it just a problem in GpsMapEdit?

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Thomas Morgenstern <webmaster at img2ms.de>
Gesendet: Samstag, 1. Mai 2021 08:56
An: Development list for mkgmap
Betreff: [mkgmap-dev] found multiple points with equal coord.....

Hi ,
yesterday mkgmap r4587 gives me following message : 'found multiple points with equal coord as CoordPOI at 56.835467 37.404949.......
The map seems okay. What shell I do with this message ?. Is this meassage only a hint for incorrect data ? Or what else ?

thomas

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