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[mkgmap-dev] How to display administrative boundaries / shade them?

From Craig Durkin craigdurkin at gmail.com on Tue Jan 18 20:39:28 GMT 2022

Oh interesting, I wonder what the size difference is. I just uploaded my
version of the relation to https://files.mkgmap.org.uk/detail/545 -- it's
159.499 bytes, but it looks complete to me: it has the relation tags with
member way references, the constituent nodes (with latitude/longitude), the
ways themselves with node references, and tags for everything.

I created it by running the following query on Overpass Turbo (
https://overpass-turbo.eu ):
rel(id: 119584);
out body;
out skel qt;


*From* Gerd Petermann gpetermann_muenchen at hotmail.com
*on* *Tue Jan 18 20:05:16 GMT 2022*

Hi Craig,

it works for me when data.osm contains the complete relation. I just
downloaded just that relation with all its members in JOSM
and the file has 359.898 bytes.
What's the content of your data.osm?
Maybe upload it to https://files.mkgmap.org.uk/


On Tue, Jan 18, 2022 at 2:30 PM Craig Durkin <craigdurkin at gmail.com> wrote:

> That's what I would have thought too, but no luck. It seems like the
> "polygons" file maybe only deals with closed ways and not specifically
> relations?
> For what it's worth, my program is invoked with:
> java -jar mkgmap-r4586/mkgmap.jar --gmapsupp --gmapi --transparent
> --output-dir=gmap_output --style-file=mkgmap-r4586/new_style/ data.osm
> and the 'polygons' file in new_style/polygons has the following line in it:
> boundary=administrative [0x07 resolution 20]
> Craig
> *From* Gerd Petermann gpetermann_muenchen at hotmail.com
> <mkgmap-dev%40lists.mkgmap.org.uk?Subject=Re:%20Re%3A%20%5Bmkgmap-dev%5D%20How%20to%20display%20administrative%20boundaries%20/%20shade%0A%20them%3F&In-Reply-To=%3CAM0PR08MB541016A276CDB396533304559E589%40AM0PR08MB5410.eurprd08.prod.outlook.com%3E>
> *on* *Tue Jan 18 18:41:33 GMT 2022*
> Hi Craig,
> I think all you need is a rule in style file polygons to render the object.
> Gerd
> On Tue, Jan 18, 2022 at 1:33 PM Craig Durkin <craigdurkin at gmail.com>
> wrote:
>> Hi mkgmap folks -- sorry if this is kind of a beginning question, but I
>> can't for the life of me figure out how to get administrative boundaries
>> (or really any arbitrary polygon) to display with mkgmap. Ideally I'd be
>> able to lightly shade the inside of the boundary polygon, but even
>> displaying the polygon is eluding me.
>> An example OSM relation that I'm trying to display is Conyers, GA, USA
>> relation ID 119584.
>> I understand that there might be editing necessary to the style files,
>> but it's not really clear: do I edit relations, lines, or polygons? Or all
>> 3?
>> Can anyone offer any tips?
>> Thanks,
>> Craig
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