[mkgmap-dev] Creating identical copies of a way - Overlays file

Sun Jan 4 20:53:23 GMT 2009

Following up again on Multiple tag parsing style rules and the overlays 
file.

Would it be possible to use the copying command for lines without the 
need to specify the exact way copy in overlays file?
Example: oneway=yes is given to many different types of highways. I 
would like to copy each way that includes oneway=yes without needing to 
give any more specifications. Currently to do this I have to create two 
maptiles and join them via tdb to display an overlay of oneway in 
mapsource, or load it onto the gps with one map being transparent.

Felix

Steve Ratcliffe wrote:
>  
>
>
>
> It uses the new 'overlays' file in the style.
>
> Example:
>
> <<<version>>>
> 0
>
> <<<lines>>>
> highway=path & mtb:scale=0 [ 0x140 ]
> highway=path & mtb:scale=1 [ 0x141 ]
>
> <<<overlays>>>
> 0x140: 0x7, 0x18
> 0x141: 0x7, 0x19
>
> So for a path of scale 0, you would get two lines drawn on top
> of each other with types 7 and 18.  For scale 1, 7 and 19.
>
> You can have more than two.
>
> The good thing is that if mkgmap ever supports large type numbers, you can
> just remove the overlays file and use 0x140 and 0x141 etc directly.
>
> .Steve <http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev>
>
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