[mkgmap-dev] Problems with SeaGenerator

Thu Oct 14 16:15:29 BST 2021

Hi Thorsten,

okay, I see error messages for the downloaded shapes:
Generation took 620720 ms
Preforming quick check against reference for index file.
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 60.820313,31.289063, index key is 2818048_1441792
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 60.820313,31.992188, index key is 2818048_1474560
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 48.164063,-87.539063, index key is 2228224_-4096000
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 48.164063,-86.835938, index key is 2228224_-4063232
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 47.460938,-89.648438, index key is 2195456_-4194304
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 47.460938,-86.835938, index key is 2195456_-4063232
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 47.460938,-86.132813, index key is 2195456_-4030464
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 47.460938,-85.429688, index key is 2195456_-3997696
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 44.648438,-82.617188, index key is 2064384_-3866624
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, land-only tile is flooded around 42.539063,-86.835938, index key is 1966080_-4063232
SCHWERWIEGEND (SeaGenerator): Precomp sea data seems to be wrong, sea-only tile is now land around -35.507813,-56.601563, index key is -1671168_-2654208
Precomp sea data seems to be wrong. Use option --x-check-precomp-sea=0 to continue risking bad sea data.
Please don't publish this data

I'll try to find out if a recent change in mkgmap causes this.
Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Thorsten Kukuk <kukuk at suse.de>
Gesendet: Donnerstag, 14. Oktober 2021 17:11
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] Problems with SeaGenerator

On Thu, Oct 14, Gerd Petermann wrote:

> Hi Thorsten,
>
> did not see a warning for tile 2654208_-163840 in my quick check, running full creation now.
> Seems the shapes were refreshed today. The README says:
> Date of the data used is 2021-10-14T00:00:00Z
>
> Did you use that as input or an older version?

I use the OSM data from today (2021-10-14, 01:53 CEST)
and build my own shapes from it.

  Thorsten

> Gerd
>
> ________________________________________
> Von: Gerd Petermann <gpetermann_muenchen at hotmail.com>
> Gesendet: Donnerstag, 14. Oktober 2021 16:39
> An: Development list for mkgmap
> Betreff: AW: [mkgmap-dev] Problems with SeaGenerator
>
> Hi Thorsten,
>
> seems you missed the changes in r4689?
> See https://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4689
>
> reg. compile: I think these hints are still correct:
> https://wiki.openstreetmap.org/wiki/Mkgmap/help/options#generating_precompiled_sea_yourself
>
> I use open jdk (from AdoptOpenJDK) to build. openjdk version "1.8.0_272" and mkgmap works fine with it.
>
> I'll try to download latest data from https://osmdata.openstreetmap.de/data/land-polygons.html to check if the index file
> sea-check.txt needs to be changed or what else is wrong.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Thorsten Kukuk <kukuk at suse.de>
> Gesendet: Donnerstag, 14. Oktober 2021 16:26
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: [mkgmap-dev] Problems with SeaGenerator
>
>
> Hi,
>
> Some users reported problems with my sea data, they get error messages
> since about a week like:
> Precomp sea data seems to be wrong, land-only tile is flooded around 57.304688,-3.164063, index key is 2654208_-163840
>
> All coordinates are in Great Britain, and this error and build aborts
> also happens if the data they try to compile is far outside the UK and
> does not contain it.
>
> Since I don't get that with my one year old mkgmap version, I run into
> the first challange: building the current mkgmap version with SeaGenerator
> enabled...
> Is there any chance to update mkgmap and all dependencies to use a newer
> java version?
> I need openjdk-1.8 to build mkgmap and Oracle jre-1.8 to run it...
> mkgmap will not work with openjdk-1.8 and it looks like Oracle does not
> really provide a jdk-1.8 anymore...
>
> Now with mkgmap r4808 I get the same errors already when generating the
> precomp sea data. But I cannot find any problems with tje OSM data: no
> coastline checker reports any problems in the UK area...
>
> Any idea how to solve this correct?
>
>   Thanks,
>     Thorsten
>
> --
> Thorsten Kukuk, Distinguished Engineer, Senior Architect SLES & MicroOS
> SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nuernberg, Germany
> Managing Director: Felix Imendoerffer (HRB 36809, AG Nürnberg)
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--
Thorsten Kukuk, Distinguished Engineer, Senior Architect SLES & MicroOS
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nuernberg, Germany
Managing Director: Felix Imendoerffer (HRB 36809, AG Nürnberg)
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