[mkgmap-dev] [PATCH v1] Thin out builtin-tag-list

Tue Apr 12 23:31:07 BST 2011


On 12.04.2011 22:51, WanMil wrote:
>>> Actually, one question related to this patch.
>>>
>>> I currently delete all motorcar, motorcycle, emergency, and so on tags
>>> via the style-file. Could I instead just remove them from the built-in
>>> tag list and thereby make the map quicker to build?
>>> (I will set new values for them, but would prefer them not to be read in
>>> at all)
>> I am not sure if it's really the same. At least the HighwayHook that
>> runs before the style is applied use these tags to configure the road
>> exceptions. So if you remove it via style the exceptions seems to be
>> already set.
>>
>> If you don't want to have it, you could better remove the tags from the
>> built-in-tag list file but you must ensure that these tags are not
>> referenced in one of your style file.
>>
> There is also an extra mkgmap option:
> --delete-tags-file=FILENAME
>           Names a file that should contain one or more lines of the form
>           TAG=VALUE or TAG=*. Blank lines and lines that start with
>           # or ; are ignored. All tag/value pairs in the OSM input are
>           compared with these patterns and those that match are deleted.
>
> This is the best way to be sure that a specific tag is not loaded from file.
>
> WanMil
> _______________________________________________
>
This extra mkgmap option is broken since a very very long time. I 
reported this once more than a year ago on the list.
It got broken when the mkgmap speed branch got merged if I remember 
correctly.