[mkgmap-dev] routing problems since r2448

Wed Apr 10 16:32:45 BST 2013

Hi,

for details see also 
http://gis.19327.n5.nabble.com/No-roads-near-target-bug-in-Schwabmunchen-tp5753364p5756068.html

For those that did not follow this thread:

I hope we found the explanation for some strange routing problems which
occur in combination
with styles that assign routable types to ways but do not set road_class or
road_speed.

It seems that this can cause problems when searching e.g. for POI .

If I got this right, the problem occurs when such a way is written to a sub
division in the img file
before any "real" road. It seems to confuse the algo in the device.

With r2448 up to r2564, it is much more likely that this problem occurs,
because the 
program always stores non-routable ways first, roads later. This was a side
effect of the change
in the short-arc-removal function.

I've created a patch for this, see 
http://gis.19327.n5.nabble.com/No-roads-near-target-bug-in-Schwabmunchen-tp5753364p5756490.html

Gerd

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