[mkgmap-dev] roadspeed in default style

Sun Mar 15 13:10:15 GMT 2015

Hi Bernd,

I agree that we can remove the extra lines to delete maxspeed.
I still see no reason to bother about railways.
Do you think that it has an influence on the img output
or do you tink that you improve throughput with this extra rule?

Gerd

Bernd Weigelt wrote
> Am Sonntag, 15. März 2015, 04:29:49 schrieb GerdP:
>> The tag mkgmap:road-speed-max is only used to 
>> recalculate the speed attribute of routable ways.
>> 
>> Do you think about a map that supports routing for trains?
> 
> Don't know a map with this feature, but there are many people out there.
> ;-)
> 
> The reason for my question is, you're removing maxspeed with 
> 
> maxspeed=signals { delete maxspeed }
> maxspeed=none    { delete maxspeed }
> 
> but i think this are nonnumeric values, which not passed mkgmap's function
> to 
> set 'maxspeedkmh()' in MaxSpeedFunction.java.
> 
> maxspeed=signal|none is removed with 
> maxspeed=* & maxspeedkmh()!=* { delete maxspeed }
> 
> But railway=* & maxspeed = * passes the filter, when maxspeed is a numeric 
> value.
> 
> This is my last line in inc/roadspeed, only to see if the rules are
> working
> 
> railway=* {echo '${mkgmap:road-speed-max}'}
> 
> I've got thousands of lines like this two lines
> 332637568: null
> 332637569: 4
> 
> first line railway without maxspeed, second with maxspeed
> 
> And the line 'maxspeed~'.*;.*' { set maxspeed='${maxspeed|part:}'; }' is
> more 
> or less useless, too. I use similar rules in lines or points to get usable 
> values if something like highway=path;track is set.
> 
> Maxspeed with ';' is a not solvable value, sometimes the first value is
> the 
> greatest, in other cases the second or third. IMHO this are tagging
> errors, 
> which should be corrected in the database.
> We should ignore the maxspeed values in this rarely cases and use the 
> road_speed from lines.
> 
> Bernd
> 
> 
> -- 
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> 
> 
> 
> 
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