- mkgmap-dev - The mkgmap lists

splitter r279
by GerdP 13 Jan '13

13 Jan '13

Hi, today I've merged the problem-list branch into trunk and committed r279. Major changes to r270: - keep-complete=true is now the default - new --precomp-sea parameter: estimate nodes that are added in mkgmap due to the equally named option, the parameter specifies the directory with the precompiled sea data - fixed potential problem with negative ids in XML writer - corrected mixed line endings for Windows systems: + all lines in areas.list, areas.poly, and template.args are written with \r\n + all lines in the kml file are written with \n only - improved throughput (a few percent) by avoiding auto-boxing - reduced memory needed in the "handle-problem-list" phase I'll update the wiki tomorrow. Ciao, Gerd -- View this message in context: http://gis.19327.n5.nabble.com/splitter-r279-tp5744035.html Sent from the Mkgmap Development mailing list archive at Nabble.com.

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Documentation
by Steve Ratcliffe 13 Jan '13

13 Jan '13

Hi The project needs a good set of documentation maintained along with the code that can be delivered as part of the distribution. We do have a reasonable amount of documentation with the built in help for all options, on the osm wiki and in the doc directory in the source. However it is scattered and there is no really clear place for a newcomer to start. So I think we need a tutorial document that takes you from "first map" and then gradually enhances it until you are in a position to build and distribute a complete map set. I have started on a separate document that will completely document the style system and language. The current drafts can be seen in pdf format here: http://www.mkgmap.org.uk/doc/pdf/style-manual.pdf So that shows the idea. I'll start on the tutorial, but I'm probably not the best person to write most of it, especially anything Windows related. So I will be looking for help with it. I would also like to collect some how-to type documents as well. I'm also going to start removing any out of date information in the mkgmap/doc directory too. ..Steve

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Commit: r2450: Remove information that is out of date, TODOs that
by svn commit 13 Jan '13

13 Jan '13

Version 2450 was committed by steve on Sun, 13 Jan 2013 Remove information that is out of date, TODOs that have not been done for the last 2-3 years, and the style documentation which is now superseded by the manual.

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Garmin Hack Weekend (1.-03.02.2013)
by Gehling Marc 13 Jan '13

13 Jan '13

Hello, in three weeks, the first Garmin Hack Weekend will be held in Essen, Germany (1.-03.02.2013). For creators a good opportunity to discuss with other garminmap developers and to work on his own or a common project. The Linuxhotel offers a great working environment and has enough space. More information and registration at http://wiki.openstreetmap.org/wiki/Garmin_Project

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Garmin Hack Weekend (1.-03.02.2013)
by Gehling Marc 13 Jan '13

13 Jan '13

Hello, in three weeks, the first Garmin Hack Weekend will be held in Essen, Germany (1.-03.02.2013). For creators a good opportunity to discuss with other garminmap developers and to work on his own or a common project. The Linuxhotel offers a great working environment and has enough space. More information and registration at http://wiki.openstreetmap.org/wiki/Garmin_Project

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Commit: r2448: Apply removeShortArcsByMergingNodes() to roads only. This fixes
by svn commit 13 Jan '13

13 Jan '13

Version 2448 was committed by gerd on Sun, 13 Jan 2013 Apply removeShortArcsByMergingNodes() to roads only. This fixes possible routing errors and allows the DouglasPeuckerFilter to reduce the details of shapes and other ways.

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Commit: r2447: Add manual for the style system.
by svn commit 12 Jan '13

12 Jan '13

Version 2447 was committed by steve on Sat, 12 Jan 2013 Add manual for the style system.

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SeaGenerator patch v1
by GerdP 12 Jan '13

12 Jan '13

Hi, the index for the precomp-sea method stores 131072 * 2 = 262.144 Strings with String.intern() in a HashMap (one instance for each job). Attached is a patch that changes the index to use a byte[512][256] array > 131072 bytes. It reduces run time and memory needs in mkgmap (when --precomp-sea is used) One problem: The unpatched version would allow to have different formats (*.o5m, *.osm.pbf, .osm.gz) in one sea directory. The patched version assumes that all files have the same prefix and extension. So, if you want to update a precompiled sea tile you have to make sure that you keep the name and format. I hope this small limit is no problem? Gerd seaGen_v1.patch <http://gis.19327.n5.nabble.com/file/n5743972/seaGen_v1.patch> -- View this message in context: http://gis.19327.n5.nabble.com/SeaGenerator-patch-v1-tp5743972.html Sent from the Mkgmap Development mailing list archive at Nabble.com.

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Commit: r2445: Reduce memory consumption when using precompiled sea
by svn commit 12 Jan '13

12 Jan '13

Version 2445 was committed by wanmil on Sat, 12 Jan 2013 Reduce memory consumption when using precompiled sea The index of the precompiled sea tiles is now a byte[][] with 512*256 = 131072 entries instead of a HashMap<String,String> with 131072 entries.

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reduce_peak_mem_v1.patch
by GerdP 12 Jan '13

12 Jan '13

Hi, attached is another patch to reduce peak memory usage in mkgmap. - reduce initial size of typically ArrayList instances which typically contain few entries - free way after it was converted in ElementSaver - free the precomp-sea index in SeaGenerator after usage (the related HashMap requires ~17Mb) for each job. I do not yet understand why this is index is a ThreadLocal. I guess it was planned to have a single thread just for the index? I think that would be good, but I don't want to change that part now because it will probably be changed in the mp_cut branch. Ciao, Gerd -- View this message in context: http://gis.19327.n5.nabble.com/reduce-peak-mem-v1-patch-tp5743803.html Sent from the Mkgmap Development mailing list archive at Nabble.com.

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