[mkgmap-dev] Sea Detection

Tue Nov 9 10:07:36 GMT 2010

I find that 

--generate-sea:multipolygon,extend-sea-sectors,close-gaps=6000 

always works for me or

--generate-sea=polygons,extend-sea-sectors,close-gaps=6000 

Most times works.

Just remember to include in the polygons file for the style  

natural=sea [0x32 resolution 12]
natural=land [0x27 resolution 12]

Markus_g

-----Original Message-----
From: mkgmap-dev-bounces at lists.mkgmap.org.uk
[mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk] On Behalf Of
charlie at cferrero.net
Sent: Tuesday, 9 November 2010 7:40 PM
To: mkgmap-dev at lists.mkgmap.org.uk
Subject: Re: [mkgmap-dev] Sea Detection

Chris66 (chris66nrw at gmx.de) wrote:

> Am 09.11.2010 09:56, schrieb charlie at cferrero.net:
>
>>> I created a map of a cutout of the europe geofabrik extract
>>> including generate sea option.
>>>
>>> All is OK, but one tile is white instead of blue because
>>> it's completely in the sea and contains no coastline.
>>>
>>> How to detect such tiles?
>>>
>>> I think this is easy: It contains no or very few
>>> data (only some ferry lines).
>>>
>>> An option for detecting such sea tiles and filling
>>> with a sea polygon would be nice.
>
>> I'm sure there is an sub-option to --generate-sea that created sea
>> tiles like this.  I think it might be extend-sea-sectors.  You might
>> have to use the polygons version of generate-sea for it to work though
>> (at least, I don't use mp version of generate-sea so I don't know
>> either way).
>
> I'm using generate-sea=extend-sea-sectors.
>
> Chris

Maybe it's no-sea-sectors then...?

-- 
Charlie

_______________________________________________
mkgmap-dev mailing list
mkgmap-dev at lists.mkgmap.org.uk
http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev