[mkgmap-dev] Reported similar arcs are not so similar

Mon Jan 11 05:46:50 GMT 2016

Hi Carlos,

sorry for the late reaction and thanks for reporting. I think I fixed this problem now, please try r3658.

Gerd

________________________________________
Von: mkgmap-dev-bounces at lists.mkgmap.org.uk <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <cdavilam at orangecorreo.es>
Gesendet: Freitag, 8. Januar 2016 22:47
An: Development list for mkgmap
Betreff: [mkgmap-dev] Reported similar arcs are not so similar

Some osmers who work fixing errors in OSM data using the files I serve
have reported a lot of cases of supposed similar arcs which are not
errors, like the following examples:
(http://www.openstreetmap.org/browse/way/47972506) and
(http://www.openstreetmap.org/browse/way/21690948)
(http://www.openstreetmap.org/browse/way/152931346) and
(http://www.openstreetmap.org/browse/way/327519978)
(http://www.openstreetmap.org/browse/way/163137843) and
(http://www.openstreetmap.org/browse/way/297772507)
According to an old message from Mark Burton [1], ways with same start
point, end point and length are reported as similar arcs by
--report-similar-arcs option, even if they don't overlap. The ones above
may meet those conditions, but it would be nice if not overlapping ways
are omitted. Perhaps an extra check for a third point in common would help.
[1] http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2010q1/006709.html
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