[mkgmap-dev] Attributes

Fri Dec 9 09:31:20 GMT 2016

Looking at the code/comment (I have no expertise whatsoever in these
extended attributes):

Try mkgmap:xt-style to set line attributes (style and colour).

mkgmap:xt-colour takes a colour name and looks as if it is only
applicable to buoys.

you can also supply a raw byte string as hex characters and it
overwrites all other attributes eg:

mkgmap:xt-extra-bytes="32a01f3d"

> To draw some traffic separation lines I tried:
>  
> seamark:type=separation_boundary {add mkgmap:xt-colour=0x05} [0x1060a
> resolution 22]
> seamark:type=separation_lane {add mkgmap:xt-colour=0x05} [0x10602
> resolution 22]
>  
> Those lines should be magenta. So I need to set colour attribute to
> 0x05. But it does not work. Lines are still black.
>  
> Marine line types 0x10600 – 0x10611 should support colour attributes
> as well as style attributes. Does anyone know how to set them for my
> example?