[mkgmap-dev] Lake Geneva is dry - fixed

Mon Jan 5 18:16:57 GMT 2015

Hi Gert

I did it manually (downloaded rectangle after rectangle of the border line in josm, until I found the wrong part (see attachment)).

A better and faster approach would be a query on the osm data base.

Example script to use on overpass-turbo.eu - Execute this script with a partial view of lake geneva on the map:

/*

This shows the border line of lake geneva in overpass-turbo.eu

*/

[out:json];

(

  relation[name='Lac Léman']({{bbox}})->.cr;

);

out body;

>;

out skel qt;

Then you click inside and the area of the multipolygon will be filled (don't know how it looked before the fix ;-)

I don't understand the details of the query yet and did't things like this before, but I sure will use it in the future - while refining my map style

Regards, Hanspeter

Von: thesurveyor at wolke7.net [mailto:thesurveyor at wolke7.net] 
Gesendet: Montag, 5. Januar 2015 12:23
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] Lake Geneva is dry - fixed

Thank you very much, Hanspeter

I'll download the new file next night and rebuild my map. I'll keep you informed about the result.

One more question about that: how did you find the corrupt multipolygon?

I'm currently not able to find such things, but perhaps if I get some hints how to do that, I can learn it :-)

Regards,

Gert

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.mkgmap.org.uk/pipermail/mkgmap-dev/attachments/20150105/46db19cc/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: lakegeneva_bug_in_josm.jpg
Type: image/jpeg
Size: 29169 bytes
Desc: not available
URL: <http://www.mkgmap.org.uk/pipermail/mkgmap-dev/attachments/20150105/46db19cc/attachment-0001.jpg>