[mkgmap-dev] additional arcs patch

Thu Feb 20 20:53:56 GMT 2014

Hi WanMil,

the indirect links should help the device to find a route with many nodes.
I'd expect either longer possible routes or faster calculation,
but I didn't notice them on my Oregon. Maybe it helps only on
devices with small memory capacities.

Gerd

WanMil wrote
> Hi Gerd,
> 
> which difference do you expect regarding the indirect links? I want to 
> get an idea what I should check on my device.
> 
> I have compiled a map using the patch and it seems that distances are 
> slightly underestimated.
> One example: The distance between Hambug, An der Alster and Munich, 
> Maximiliansplatz:
> MapSource: 776km
> Google Maps: 788km
> Both use the same route.
> 
> I didn't notice it before.
> 
> WanMil
> 
>> Hi all,
>>
>> attached is a patch for r3065 in the high-prec-coord branch.
>>
>> It should improve long distance routing, as it adds additional
>> arcs from minor roads to major roads (so called indirect links).
>> Maybe the improvement is only seen on the device.
>>
>> It would be great to hear some test results (good or bad),
>> compared to trunk r3057 and compared to r3065.
>>
>> A compiled binary is here:
>> |http://files.mkgmap.org.uk/download/179/mkgmap.jar
>>
>> |Gerd
>>
>>
>>
>>
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>> 

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>>
> 
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