March 2021 - mkgmap-dev - The mkgmap lists

Removal of floodblocker generate-sea option
by Ticker Berkin 17 Mar '21

17 Mar '21

Hi all I think it is time that that the floodblocker logic is removed. I doubt if anyone uses it. The recommended way to have sea is to use --precomp-sea and floodblocker is irrelevant to this. Using the coastline data from the normal OSM input, the common sea problems are in tiles that extend beyond the extracted region, where coastline is incomplete (not reaching tile edges, or has gaps where there are estuaries) and floodblocker is no use in this case. This could be done as part of the "faster-mp" branch as it removes an interface into MultiPolygonRelation, reducing the effort to restructure this. Ticker

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Error in mkgmaps logging class?
by Gerd Petermann 15 Mar '21

15 Mar '21

Hi Steve, Please review: I've noticed that log.isLoggable(Level.WARNING) always returns true when I don't use the -Dconfig.logging option for JRE . This is unexpected as calls to log.warn(...) don't produce any output in this case. The attached simple patch seems to fix this but I don't really understand the code. Maybe you forgot this change in http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=233 ? In class MultiPolygonRelation we have quite a lot of methods which is meant to be skipped if logging is not enabled but because of this bug(?) the code is executed sometimes, maybe with side effects that I don't yet fully understand. Gerd

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Flooded islands
by 7770 15 Mar '21

15 Mar '21

Hi. I noted that many of the islands in the Åland archipalago (between Sweden and Finland) are flooded. On a GPS unit (gpsmap 66st) the land looks like land, but when howering the pointer over the area it shows the name of the sea, not the name if the island. In qmapshack the islands look flooded. I checked one of the islands (Eckerö, which is westernmost) in JOSM, i could not find any disconnected section nor any self crossing lines or similar issues. I do use the pre-made sea data when i run mkgmap. I also tried running without the pre-made sea data, but it did not change the flooding of these islands. Two screenshots from qmapshack added to the file upload: http://files.mkgmap.org.uk/detail/503 http://files.mkgmap.org.uk/detail/504 What could be the reason for the flooding? regards Karl

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Commit r4608: Improve handling of invalid option file, CommandArgsReader.patch by Mike Baggaley
by svn commit 10 Mar '21

10 Mar '21

Version mkgmap-r4608 was committed by gerd on Wed, 10 Mar 2021 Improve handling of invalid option file, CommandArgsReader.patch by Mike Baggaley - fixes a crash if you inadvertently specify a .o5m file after the -c command line argument. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4608

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Commit r4607: fix typo in MultiPolygonRelation code
by svn commit 09 Mar '21

09 Mar '21

Version mkgmap-r4607 was committed by gerd on Tue, 09 Mar 2021 fix typo in MultiPolygonRelation code - hasStyleRelevantTags() always returned true http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4607

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removal of parallel lines
by Mike Baggaley 09 Mar '21

09 Mar '21

Hi all, At low resolutions I would like to be able to remove parallel lines so that (for example) only a single motorway carriageway or railway track is shown instead of two or (in the case of the West Coast Main Line) four lines, which due to different Douglas Peucker line simplifications end up crossing each other, look messy and add unnecessary lines to the overview. Has anyone done this before or have any ideas about how I might go about it? Cheers, Mike

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-c option crash
by Mike Baggaley 08 Mar '21

08 Mar '21

Hi Gerd, The attached patch fixes a crash if you inadvertently specify a .o5m file after the -c command line argument. Cheers, Mike

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omit items from overview
by Mike Baggaley 08 Mar '21

08 Mar '21

Hi Gerd, Please find attached a patch that causes objects that have mkgmap:nooverview=yes to be omitted from the overview map. Cheers, Mike

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Commit r4606: Improve handling of "too big" maps and --keep-going option
by svn commit 06 Mar '21

06 Mar '21

Version mkgmap-r4606 was committed by gerd on Sat, 06 Mar 2021 Improve handling of "too big" maps and --keep-going option OverviewTooBig5.patch by Mike Baggaley - show detailed sub file or file where possible including the limit that was hit - allow to go closer to that limit (old code might have stopped 128K below the limit) - stop if this limit was hit or another MapFailedException is produced unless --keep-going is used http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4606

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Overview Too Big
by Mike Baggaley 03 Mar '21

03 Mar '21

Hi Gerd, The error message that mkgmap outputs when the overview map is too big is not helpful. Please find attached a patch that improves this. Cheers, Mike

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