[mkgmap-dev] [PATCH v1] - handle "anti-islands"

Tue Jan 26 13:24:36 GMT 2010


On 26.01.2010 14:12, Mark Burton wrote:
> Felix,
>
>    
>> Does not work 100% for me yet, but in principle it seems to work.
>>
>> --generate-sea=polygons,extend-sea-sectors,close-gaps=1000
>>
>> Square tagged with
>> natural=coastline
>> a) direction of way: anticlockwise     == Correctly map is flooded,
>> inside is dry
>>      
> Good.
>
>    
>> b) direction of way: clockwise           == Map neither flooded nor is
>> background polygon drawn, map therefore behaves as if not --generate-sea
>> would have been parsed. (hence need for another typfile).
>>      
> When you say background polygon, do you mean the 0x4b poly or poly with
> the land tag or natural=sea?
>
>    
I mean the poly with the land tag. (actually as I already said, I think 
we could drop 0x4b completly when everything is covered by either land 
poly or sea poly - there are people that replaced 0x4b by other types).
> Also, what about the inside of the anti-island? That should be
> natural=water.
>
>    
That worked as far as I could understand your definition of anti-island.
> Mark
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