[mkgmap-dev] errors in routing

Mon Aug 3 11:49:56 BST 2009

garvan.maew at online.com.kh wrote:
> Quoting Mark Burton <markb at ordern.com>:
>
>   
>>> Should now be fixed.
>>>       
>> Err, that's only for OSM input.
>>
>> For Polish input it's not fixed - you have to fix your data instead.
>> Just make sure that no road is longer than 25Km between nodes. If
>> necessary, add extra nodes.
>>
>> I don't know what the distance constraint is here but with your sample
>> data, I limited the length of the way to 25Km and the problem went
>> away.
>>
>> Cheers,
>>
>> Mark
>>     
>
> Thanks for your work on this, I will test it on the full map at lunch  
> time or tonight. The problem is most evident when highways are added  
> to otherwise blank sections of the map. I checked the entire map of  
> the Netherlands yesterday to understand why others had not reported  
> the problem and I found that all the road segments are short, so the  
> problem did not show up.
>
> I may be able to use mkgmap to fix my road data automatically in a  
> once-off conversion, mp->osm->img->mp. I will need to check each step  
> to make sure nothing is lost.
>
>   
I tested the update on a full map, and it is working well.

Thanks

Garvan