[mkgmap-dev] mkgmap and route restrictions

Thu Mar 20 17:15:35 GMT 2014

> Hi all,
>
> looking at the 4 node restrictions I think I found a general bug in mkgmap:
>
> Both with polish (.mp) format and with OSM data we compute the
> routing nodes for which the restriction shoud be applied.
> In a second step we compute the arcs between these nodes.
> In this 2nd step we ignore the information about roads given with
> TRAFFROADS in polish format or the from,via, and to roles in OSM data.
>
> In the mkgmap algo, we just select the first direct arc (means: peace of
> road) between the nodes.
> If the nodes are connected with multiple arcs on different roads, this
> probably is too lazy, although it will not fail very often.
>
> I have to rewrite most of the code reg. restrictions to correct this..
>
> Gerd

Hi Gerd,

can you give an example?

Thanks!
WanMil