[mkgmap-dev] routable tiles with visible seas

Tue Mar 2 22:14:09 GMT 2010

Hi Nick,

> I'm not so sure I understand - is there something wrong with my typ file if 
> it generates seas without flooding at any zoom level?
> I appreciate having to readup on creating routable styles.

If you are using --generate-sea=polygons (or no-mp, means the same) you
need to define a land type in your polygons style file, similar to this:

natural=land [0x010100 resolution 12]

I have used 0x010100 for the type but other people have used other
codes.

You also need to have an entry in the typ file for that polygon type
specifying a draw priority that is above the sea polygons otherwise you
won't get any visible land.

Mark