[mkgmap-dev] How do I get a blue sea?

Sun May 22 16:30:22 BST 2011

Thanks to a number of helpful suggestions, I now have a blue sea. The 
final change which worked was to get the options in mkgmap in the right 
order - so that '--generate-sea' came before the file names.

However, mkgmap now generates a series of errors on one source file (out 
of 33). An example is

SEVERE (MapSplitter): 60923011.osm.gz: Area too small to split at 
http://www.openstreetmap.org/?mlat=52.01198&mlon=0.94047&zoom=17 (reduce 
the density of points, length of lines, etc.)

A total of 10 of these appeared, all from the same input file (generated 
from a Great Britain download using splitter) and all in the same 
region. I have looked at two of them with Potlatch and Mapsource, and 
can see no anomalies. One is in blank space, the other in woodland. They 
did not appear (using the same data files) before I made changes to get 
the sea. I have re-downloaded the data files and run splitter/mkgmap 
again with the same results.

Any suggestions as to where these come from and how to get rid of them?

Many thanks,

Roger
------------------------------------------------------------------------

Roger Calvert
------------------------------------------------------------------------

On 19/05/2011 09:54, michael lohr wrote:
> i don't use mapTK, i use this online editor: 
> http://ati.land.cz/gps/typdecomp/editor.cgi
>
> Am 18.05.2011 22:12, schrieb Roger Calvert:
>> Thanks for suggestions. No luck so far - please could you advise on 
>> the points below.
>>
>> Many thanks,
>>
>> Roger
>>
>> On 18/05/2011 07:03, michael lohr wrote:
>>> style:
>>> natural=land { name 'land' } [0x10100 resolution 14]
>>> natural=sea { name 'sea' } [0x10f1d resolution 14]
>>>
>>> typ:
>>> both 0x10100 and 0x10f1d must be defined, with sea having the lower 
>>> drawing priority
>> Please can you advise me on the entries I should put in the MapTK prj 
>> file to incorporate these in the typ file - I haven't done much with 
>> these!
>>
>>>
>>> Am 17.05.2011 22:42, schrieb Carlos Dávila:
>>>> El 17/05/11 21:35, Roger Calvert escribió:
>>>>> I'm using mkgmap to install OSM on my Garmin GPS.
>>>>>
>>>>> Lakes and rivers come out in blue on both Mapsource and the GPS, 
>>>>> but the sea comes out white. The shoreline appears as a single 
>>>>> thin line.
>>>>>
>>>>> I am using pbf files of England, Scotland and Wales downloaded 
>>>>> from geofabrik Download-Bereich.
>>>>>
>>>>> I have the option 
>>>>> '--generate-sea=polygons,extend-sea-sectors,close-gaps=1000' in 
>>>>> the mkgmap command line. The 'polygons' file contains 'natural=sea 
>>>>> [0x32 resolution 18]'.
>>>>>
>>>>> Any suggestions as to how I might get a blue sea?
>>>> Are you using a .TYP file? Do you have 0x32 defined in it?
>> Yes, both 0x32 and 0x28 are included, with the entry in the MapTK prj 
>> file for 0x32 as
>>
>> [Polygon]
>> Type=0x32
>> DrawOrder=3
>> String=4,Sea
>> Color=0,0x0000ff
>> [END]
>>
>>>>
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