[mkgmap-dev] Re: Reproducible inter-tile routing error

Thu Apr 9 22:38:48 BST 2009

You're right: The routing problems occur even with everything in one tile.

I don't know if this is caused by bad data or just general routing
weirdness. What would be the best way to analyze this?

Cheers.

On Thursday, April 9, 2009, Mark Burton <markb at ordern.com> wrote:
>
> Hi Clinton,
>
>> I have found a reproducible routing error, which occurs when I split
>> and compile the Italy extract from Geofabrik.de.
>>
>> - The error occurs when routing on the A1 from Modena to Parma. (I
>> have only tested this in MapSource so far.) If I route in the opposite
>> direction (South-East), the problem does not occur.
>>
>> - As soon the route crosses the tile boundary, the route starts
>> jumping back and forth over a very large area.
>
> Can you route successfully if the roads in question are contained in a
> single tile? I'm just wondering if it is a general routing issue or
> specifically an inter-tile routing issue.
>
> I only wonder because I have an example map that has broken routing so
> I know that there still exists problems with intra-tile routing.
>
> Cheers,
>
> Mark
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