[mkgmap-dev] PATCH v1: highwayCount

Fri Feb 8 11:39:47 GMT 2013

yes I'm still using that one. I think I can drop the --x , which I used 
because sometimes it was broken on the commandline check, but working 
below the hood. Never noticed any routing problems due to it.
I probably don't have any time over the next 3 days though...

Area to small to split, is not my aim. My aim is to make the map faster 
to draw on GPS. 6 is the highest value that leads to very small visible 
changes, therefore I use it over the default.
On 08.02.2013 10:48, GerdP wrote:
> oops, seems I was trapped by some caching in BaseCamp.
>
> --x-reduce-point-density-polygon=6 doesn't break routing.
>
> Gerd
>
>
> GerdP wrote
>> Hi Felix,
>> Felix Hartmann-2 wrote
>>> Routing over long distances is not working at all anymore (much much
>>> worse to before).
>>> Don't have time (need to sleep) to find out if any roads become
>>> unroutable though...
>> please check: Are you still using this option?
>> --x-reduce-point-density-polygon=6
>>
>> 1) It seems to be the reason for the broken routing (also in the trunk
>> version)
>> 2) althrough not documented, it is interpreted as
>> --reduce-point-density-polygon=6
>> The help file for this option says that the recommended value is 8, but if
>> the value is
>> not specified, it uses the value from reduce-point-density.
>> If both are not specified, the default for both is 2.6
>>
>> I assume that you use the higher values because you see the
>> severe "Area to small to split at ..." messages. Please ignore them
>> as long as you don't see empty img files or try the
>> MapArea_v1.patch
>> http://gis.19327.n5.nabble.com/Why-do-we-have-the-Area-too-small-to-split-at-message-tp5744612p5744766.html
>>
>> @Steve:
>> I have no good idea why this option breaks routing over long distances.
>> It just changes the way how DouglasPeucker works for shapes.
>> The higher the value, the more points of shapes are removed.
>> Maybe fewer shapes are written, maybe more sub divisions are empty.
>> Any hints?
>>
>> Gerd
>
>
>
>
> --
> View this message in context: http://gis.19327.n5.nabble.com/PATCH-v1-highwayCount-tp5748554p5748593.html
> Sent from the Mkgmap Development mailing list archive at Nabble.com.
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev

-- 
keep on biking and discovering new trails

Felix
openmtbmap.org & www.velomap.org