[mkgmap-dev] [PATCH v2] Black/Whitelist

Mon Jan 4 17:28:22 GMT 2010

Am 04.01.2010 11:18, schrieb Johann Gail:
>
>>
>> Could someone please commit or deny the patch. It is open for a long
>> time, no one has complained about it and I think it's a useful
>> enhancement.
>>
> Sorry, I don't see the use of a black/whitelist of tags.
> The information of used tags should be contained in the style files, so
> why should I have to manage another additional file?
> Is it for speed/resource reasons?
>
> Regards,
> Johann
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>

Johann,

yes it speeds up the map generation by magnitude of times in case the 
map uses only very few parameters. e.g. if you want to create a map that 
visualizes the maxspeed (or maxheight, maxweight....) tag only its 
useless to parse all other parameters.

You are right that this information is also contained in the style files 
and in future a better patch should automatically compile this 
information from the style files.

WanMil