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[mkgmap-dev] precomp sea test environment

From Carlos Dávila carlos at alternativaslibres.org on Thu Sep 10 17:49:15 BST 2020

I also face wrong sea from time to time. I agree a pre-check would be 
much useful. Also your sea-check style+empty tiles, thanks Gerd.

El 10/9/20 a las 11:27, Joris Bo escribió:
> Hi Gerd
> I recently (24-8-2020) had the same problem. The bad sea.zip was about 14Mb smaller then usual.
> A pre-check and warning would be great.
> Kind Regards
> Joris
> -----Oorspronkelijk bericht-----
> Van: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> Namens Gerd Petermann
> Verzonden: donderdag 10 september 2020 11:16
> Aan: mkgmap-dev at lists.mkgmap.org.uk
> Onderwerp: [mkgmap-dev] precomp sea test environment
> Hi all,
> today I stumbled over a bad sea.zip file that was created in 2019-11-08. Most of the two Americas was flooded.
> I wondered if I should add some code to mkgmap to detect this case?  Eg. mkgmap could check some points which are clearly inside continents.
> Besides that it is rather simple to produce a test style for the sea which just creates an overview map. I've created some empty tiles which cover full planet and used them to create an overview map containing only sea polygons. This compilation takes ~1 minute. A quick glance at osmmap.img should show the familiar shapes of the continents, if not something is wrong and that probably means that the precomp-sea data is bad.
> I've attached this, maybe it is of some help.
> Gerd
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