[mkgmap-dev] Proof of concept for better sea in overview map

Sat Jun 12 11:38:57 BST 2021

oh sorry did not see your message. But yeah I hope you can solve that
trimming problem. It should not happen that mkgmap (or is it splitter)
deletes part of the map on the borders (I guess it is all related). Just
play around with australia-oceania and try to get something useful... I
feel this is way more disturbing than the tiny white stripes (though they
in some versions were really annoying to - but that was rarer than those
huge white blocks).

On Sat, 12 Jun 2021 at 13:33, Felix Hartmann <extremecarver at gmail.com>
wrote:

> Hi Gerd
>
> hmm - maybe I should keep it... Without it I know get a
> SEVERE (global): The RGN section of the map or tile is too big. The
> maximum size is 16777215 bytes. Try splitting the map into smaller tiles or
> reducing the amount of information included in the map.
>
> error. I guess that means the address search will be partly broken? That
> error message is a bit confusing.
>
>
> And I get the following problem - mkgmap trims to aggressively actually
> deleting part of the map. Something in this whole process is seriously
> broken... Same process as above, not using --improve-overview yet. Just
> without precomp-sea
>
> On Sat, 12 Jun 2021 at 12:42, Felix Hartmann <extremecarver at gmail.com>
> wrote:
>
>> I also do not know anymore. I guess I should drop it. I tried googling it
>> - but could not find anything. Well I am going to drop it now.
>> I still get 268 tiles however - and not 88
>>
>> On Sat, 12 Jun 2021 at 12:19, Gerd Petermann <
>> gpetermann_muenchen at hotmail.com> wrote:
>>
>>> Hi Felix,
>>>
>>> I don't remember exactly why the --precom-sea option was added to
>>> splitter, but I think it makes no sense to use that option in combination
>>> with trimming.
>>> What's your reason to use this combination?
>>>
>>> Gerd
>>>
>>>
>>>
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
>>> Gerd Petermann <gpetermann_muenchen at hotmail.com>
>>> Gesendet: Samstag, 12. Juni 2021 10:30
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> Hi Felix,
>>>
>>> r602 and r604 should do the same.
>>> looking at the splitter log I see
>>> Exact map coverage read from input file(s) is
>>> (-57.16482639312744,44.65547561645508) to
>>> (26.46477699279785,179.99469995498657)
>>> Rounded map coverage is (-57.1728515625,44.6484375) to
>>> (26.4990234375,180.0)
>>>
>>> This covers parts of India and Africa, but for sure not Mexico. I assume
>>> that your australia-oceania.areas.list was not produced with a file
>>> downloaded from geofabrik, maybe you updated it with a bad tool?
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
>>> Felix Hartmann <extremecarver at gmail.com>
>>> Gesendet: Samstag, 12. Juni 2021 10:14
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> I`m still using splitter 602. I did not know 604 would behave
>>> differently - I will try it out because those tiny tiles without much
>>> information in australia-oceana are not that helpful. But the problem is
>>> not directly related to the version. Those gaps have been there a long time
>>> (well and the 4 missing/empty) tiles did not happen before using
>>> --improve-overview. As this surely is somehow related - and fits in the
>>> topic of improving the overview map - great that you are looking for a
>>> solution.
>>>
>>> Well everywhere on my screenshot where you see something red - (national
>>> border - I think level2) there is some content. That australia-oceana map
>>> has some parts of data kinda anywhere...
>>>
>>> Trimming the sea on one hand is nice - because the sea/land area using
>>> --precomp-sea is a bit confusing too - as when you zoom into some areas -
>>> they will not contain data. But I think that is less of a problem then the
>>> gaps - and it should be clear an australia-oceania map does not have
>>> detailed map data of Asia...
>>>
>>> On Sat, 12 Jun 2021 at 11:03, Gerd Petermann <
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>
>>> wrote:
>>> Hi Felix,
>>>
>>> I've just used splitter r604 with a freshly downloaded sea.zip and
>>> australia-oceania-latest.osm.pbf and your options and I get a completely
>>> different areas.list with only 88 tiles, but it also has gaps. They
>>> disappear when I remove the --precomp-sea option, so that's one big
>>> difference to my test environment.
>>> No idea why you get 274 tiles, and they cover a completely different
>>> area, even parts of Mexico.
>>>
>>> I try to find out why splitter creates those gaps now...
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>> im Auftrag von Felix Hartmann <
>>> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>
>>> Gesendet: Samstag, 12. Juni 2021 09:34
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> highlighted = pink. maybe that confused you. I should have explained
>>> better. But in general ll those gaps should not be there.
>>>
>>> On Sat, 12 Jun 2021 at 10:31, Felix Hartmann <extremecarver at gmail.com
>>> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>> wrote:
>>> I use
>>> C:\openmtbmap\osmconvert.exe --drop-author --drop-version
>>> D:\openmtbmap\osmpbf_geofabrik\australia-oceania-latest.osm.pbf
>>> -o=C:\openmtbmap\osmpbf_geofabrik\australia-oceania.o5m
>>> then
>>> start /low /b /wait java -XX:+AggressiveHeap -Xms15000m -Xmx54000m -jar
>>> C:\openmtbmap\splitter.jar "--precomp-sea=C:\openmtbmap\maps\sea.zip"
>>> --max-nodes=1000000 --max-threads=8 --output=pbf "--keep-complete"
>>> --route-rel-values=mtb,bicycle,foot,hiking --max-areas=4000
>>> --geonames-file=C:\OpenMTBMap\maps\cities5000.zip
>>> --description=australia-oceania --mapid=65340000
>>> C:\openmtbmap\osmpbf_geofabrik\australia-oceania.o5m
>>>
>>>
>>> The highlighted tiles selected in Mapsource for sending to GPS device -
>>> are empty using improve-overview - but they are filled with sea without
>>> using it. They are only empty in overview map. I think those gaps also
>>> should not be there - so it is a wider problem that existed before already.
>>> For overview map mkgmap should use all the sea/land area for the full
>>> coverage - and not cut out areas. Actually cutting for sea/land should also
>>> not happen in the normal map. The reason for trimming is to have to maps
>>> not overlap itself with empty content - because mkgmap/splitter only cuts
>>> rectangles - not polygons. But sea/land will be identical in two country
>>> maps - so should not be trimmed
>>>
>>> On Sat, 12 Jun 2021 at 10:24, Felix Hartmann <extremecarver at gmail.com
>>> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>> wrote:
>>> the problem is - using improve-overview some tiles in the overview map
>>> miss sea. I am pretty sure this happens on default style too. But likely
>>> not if you use --no-trim and / or keep-complete for splitting.
>>> Attached is the areas.list
>>>
>>> On Sat, 12 Jun 2021 at 09:40, Gerd Petermann <
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>>> wrote:
>>> Hi Felix,
>>>
>>> I don't yet understand what's going on. Please provide a link to your
>>> areas.list
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>> im Auftrag von Felix Hartmann
>>> <extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
>>> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>
>>> Gesendet: Freitag, 11. Juni 2021 12:14
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> Nope - that did not help. And I think the problem is a bit unrelated.
>>> Mkgmap with your new version and --improve-overview assumes there is an
>>> empty map - and puts those three square areas of missing anything. Maybe
>>> you give it a try and analyse what happens.
>>>
>>> I actually think this bug has been there before already - and it
>>> happened to me with contourlines only maps. Meaning mkgmap cuts the map
>>> area way too aggressively, and removes part of the map that actually even
>>> have content - or was it splitter. I think for contourlines only maps I had
>>> to use splitter with --keep-complete and --no-trim else there would be
>>> missing. areas in the map. (not on the outside but right in the middle in
>>> the ocean usually - but sometimes also e.g. northernmost parts of Norway in
>>> an Europe contourlines only map).
>>>
>>> So I split australia-oceania WITHOUT --no-trim. Are you assuming to
>>> split with --no-trim? Actually those grey boxes are each of its own
>>> separate tiles (with nearly no content - e.g. one has a riff polygon only).
>>> I guess there is lots of openseamap stuff so splitter creates those tiny
>>> tiles...
>>> Mkgmap should never trip on the overview map. The normal map should be
>>> trimmed aggressively - as we still cannot cut according to a bounding
>>> polygon and only using rectangles. But the overview map sea creation should
>>> not cut out sea or anything.
>>>
>>> I guess you never noticed that working on Norway - but it would be a
>>> good start to play around with australia-oceania (it is nice to work with -
>>> because it is relatively small in size so compiles fast). See attached
>>> screenshot of overview map. All the selected tiles were before showing sea
>>> (and do so once past the overview map too). The high DP filter was not the
>>> problem. For Australia-Oceania the --improve-overview right now is not a
>>> good example. The map was better before. Oh yeah - and
>>> --polygon-size-limits="24:12, 23:14, 22:14, 21:20, 20:20, 19:20, 18:20,
>>> 17:20, 16:20, 15:20, 14:20, 13:20, 12:20, 11:20, 10:20
>>> looks better than small values. Actually I think even to rather increase
>>> more. Maybe that is why I had less problems right from the start - because
>>> I cut away tiny islands.
>>>
>>> C:\openmtbmap\maps>if yes NEQ no start /low /b /wait java -jar
>>> -XX:+AggressiveHeap -XX:StringTableSize=1000003 -Xms15000M -Xmx29000M
>>> C:\openmtbmap\mkgmap.jar --max-jobs=8 --order-by-decreasing-area
>>> "--generate-sea" --code-page=1252
>>> "--precomp-sea=C:\openmtbmap\maps\sea.zip"
>>> "--style-file=C:\openmtbmap\openmtbmap_style" --improve-overview
>>> --add-boundary-nodes-at-admin-boundaries --drive-on=detect
>>> --allow-reverse-merge
>>> --line-types-with-direction=0x18,0x1f,0x10016,0x10101,0x10105,0x10401,0x10403,0x10405,0x10408,0x10409,0x1040b,0x1040d,0x1040e,0x10500,0x10501,0x10502,0x10503,0x10504,0x10505,0x10506,0x10507,0x10607,0x10609,0x1060b,0x10702,0x10703,0x10704,0x10705,0x10706,0x10707,0x10a00,0x10a02,0x10a04,0x10a05,0x10e1e,0x10e0f,0x10e0e,0x10e1e,0x10f0a,0x10f1c,0x10e1d
>>> --nsis --index --levels="0:24, 1:23, 2:22, 3:21, 4:20, 5:19, 6:18"
>>> --overview-levels="7:17, 8:16, 9:15, 10:14, 11:13, 12:12"
>>> --add-pois-to-areas
>>> --pois-to-areas-placement=entrance=main;entrance=yes;building=entrance;barrier=
>>>  entrance
>>> --x-simplify-filter-line-errors=23:2.6,22:4.2,21:5.4,20:6,19:7,18:7.5,17:6,14:6
>>> --x-simplify-filter-polygon-errors=23:3.6,22:7,21:6,20:9,17:2.6
>>> --add-boundary-nodes-at-admin-boundaries=2
>>> --poi-excl-index=0x6405,0x4316,0x2f00
>>> --copyright-file="C:\openmtbmap\openmtbmap_svn\copyrightopm.txt"
>>> --license-file="C:\openmtbmap\openmtbmap_svn\licenseopm.txt" --cycle-map
>>> --ignore-fixme-values --housenumbers
>>> --road-name-config=C:\openmtbmap\openmtbmap_svn\roadNameConfig.txt
>>> --split-name-index --link-pois-to-ways --ignore-turn-restrictions
>>> --polygon-size-limits="24:12, 23:14, 22:14, 21:20, 20:20, 19:20, 18:20,
>>> 17:20, 16:20, 15:20, 14:20, 13:20, 12:20, 11:20, 10:20"
>>> --description=omtb_auo --show-profiles=1
>>> --location-autofill=bounds,is_in,nearest
>>> --bounds=C:\openmtbmap\maps\bounds.zip
>>> --mdr7-del=pri;sec;ter;cw;min;unsf,uncl;living;pdstrn;trk;pth;ft;fp;brdlw;rd;byw;ser;cw;mrt;crt;Bklane;Bktrk;opp;Opptrk;g0;g1;g2;g3;g4;g5;g6;t1;t2;t3;t4;t5;t6;xbk;cr;mr;hr;mr0;mr1;mr2;mr3;mr4;mr5;mr0.;mr1
>>>  .;mr2.;mr3.;mr4.;mr5.;mr6.;mr00;mr01;mr02;mr03;mr04;mr05;mr06;mr11;mr12;mr13;mr14;mr15;mr16;mr20;mr21;mr22;mr23;mr24;mr25;mr26;mr30;mr31;mr32;mr33;mr34;mr35;mr35;mr40;mr41;mr41;mr43;mr44;mr45;mr46;mr50;mr51;mr52;mr53;mr54;mr55;mr56;mr60;mr61;mr62;mr63;mr64;mr65;mr66;m0;m1;m2;m3;m4;m5;m0.;m1.;m2.;m3.;m4.;m5.;m6.;m00;m01;m02;m03;m04;m05;m06;m11;m12;m13;m14;m15;m16;m20;m21;m22;m23;m24;m25;m26;m30;m31;m32;m33;m34;m35;m35;m40;m41;m41;m43;m44;m45;m46;m50;m51;m52;m53;m54;m55;m56;m60;m61;m62;m63;m64;m65;m66;mr.0;mr.1;mr.2;mr.3;mr.4;mr.5;mr.6;m.0;m.1;m.2;m.3;m.4;m.5;m.6;m1.;m2.;m3.;m4.;m5.;m6.;lmr;mrx0;mrx1;mrx2;mrx3;mrx4;mrx5;mrx6;mx0;mx1;mx2;mx3;mx4;mx5;mx6;bridge;swing;aqueduct;viaduct;"ntnl
>>> bndry";admin_lv=4;"ntnl
>>> park";weir;dam;waterfall;rapids;stream;river;drain;ditch;"huge
>>> river";"hugest river";"medium river";"small river";"wide river";"hugest
>>> canal";"huge canal";"medium canal";"small canal";"big
>>> canal";canal;snowpark;Skitour-descent;Skipiste;Skislope;illuminated;Nordic-Skiing;skitour
>>>  ;platter;ropetow;tbar;chairlift;goods_lift;runway;taxiway;apron;VFS0;VFS1;VFS2;VFS3;VFS4;VFS5;VFS6;VFS7;usf;cstrn;steps;parking_aisle;res;cob;cobstn;public_footway;public_footpath
>>> --mdr7-excl=pri;sec;ter;cw;min;unsf,uncl;pdstrn;trk;pth;ft;fp;brdlw;rd;byw;ser;cw;mrt;crt;Bklane;Bktrk;opp;Opptrk;g0;g1;g2;g3;g4;g5;g6;t1;t2;t3;t4;t5;t6;xbk;cr;mr;hr;mr0;mr1;mr2;mr3;mr4;mr5;mr0.;mr1.;mr2.;mr3.;mr4.;mr5.;mr6.;mr00;mr01;mr02;mr03;mr04;mr05;mr06;mr11;mr12;mr13;mr14;mr15;mr16;mr20;mr21;mr22;mr23;mr24;mr25;mr26;mr30;mr31;mr32;mr33;mr34;mr35;mr35;mr40;mr41;mr41;mr43;mr44;mr45;mr46;mr50;mr51;mr52;mr53;mr54;mr55;mr56;mr60;mr61;mr62;mr63;mr64;mr65;mr66;m0;m1;m2;m3;m4;m5;m0.;m1.;m2.;m3.;m4.;m5.;m6.;m00;m01;m02;m03;m04;m05;m06;m11;m12;m13;m14;m15;m16;m20;m21;m22;m23;m24;m25;m26;m30;m31;m32;m33;m34;m35;m35;m40;m41;m41;m43;m44;m45;m46;m50;m51;m52;m53;m54;m55;m56;m60;m61;m62;m63;m64;m65;m66;mr.0;mr.1;mr.2;mr.3;mr.4;mr.5;mr.6;m.0;m.1;m.2;m.3;m.4;m.5;m.6;m1.;m2.;m3.;m4.;m5.;m6.;lmr;mrx0;mrx1;mrx2;mrx3;mrx
>>>  4;mrx5;mrx6;mx0;mx1;mx2;mx3;mx4;mx5;mx6;"ntnl bndry";admin_lv=4;"ntnl
>>> park";"huge river";"hugest river";"medium river";"small river";"wide
>>> river";"hugest canal";"huge canal";"medium canal";"small canal";"big
>>> canal";canal;snowpark;Skitour-descent;illuminated;Nordic-Skiing;skitour;platter;ropetow;tbar;goods_lift;runway;taxiway;apron;VFS0;VFS1;VFS2;VFS3;VFS4;VFS5;VFS6;VFS7;usf;cstrn;steps;parking_aisle;res;cob;cobstn;public_footway;public_footpath
>>> --route --country-abbr=auo --country-name=australia-oceania
>>> --mapname=65340000 --family-id=6534 --product-id=1
>>> --series-name=omtb_australia-oceania_11.06.2021
>>> --family-name=mtb_auo_11.06.2021 --tdbfile --gmapi
>>> --overview-mapname=mapsetc --keep-going
>>> --area-name="australia-oceania_11.06.2021_omtb" -c
>>> D:\openmtbmap\maps\template.australia-oceania
>>> C:\OpenMTBMap\contourlines20\australia-oceania\7*.img typauo.TYP
>>>
>>> On Fri, 11 Jun 2021 at 12:25, Felix Hartmann <extremecarver at gmail.com
>>> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>>> wrote:
>>> yes I was using:
>>>
>>> --x-simplify-filter-line-errors=23:2.6,22:4.2,21:5.4,20:6,19:7,18:7.5,16:8,14:9
>>> --x-simplify-filter-polygon-errors=23:3.6,22:7,21:6,20:9
>>> --polygon-size-limits="24:12, 23:14, 22:14, 21:20, 20:20, 19:20, 18:20,
>>> 17:20, 16:20, 15:20, 14:20, 13:20, 12:20, 11:20, 10:20"
>>>
>>> levels = 0:24, 1:22, 2:21, 3:20, 4:19, 5:18
>>> overview-levels = 6:17, 7:16, 8:15, 9:14, 10:13
>>>
>>> As this only affects the overview map - I guess I should change it to:
>>> --x-simplify-filter-polygon-errors=23:3.6,22:7,21:6,20:9,17:2.6 ??
>>>
>>> The polygon-size-limits should not matter as I have the skip-size filter
>>> set for sea.
>>>
>>> I had worked quite a long time to optimize those settings with the old
>>> behaviour.
>>>
>>>
>>> On Fri, 11 Jun 2021 at 11:50, Gerd Petermann <
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>>>
>>> wrote:
>>> Hi Felix,
>>>
>>> Maybe you are using large values for the Douglas-Peucker filter at low
>>> resolutions? That's probably a bad idea with the new option. I always
>>> tested with the default 2.6 for all levels.
>>> The effect of the new option is that DP really can do its work.
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>> im Auftrag von Felix
>>> Hartmann <extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> ><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> >><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> ><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>
>>> Gesendet: Freitag, 11. Juni 2021 10:23
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> --generate-sea --precomp-sea=C:\openmtbmap\maps\sea.zip
>>> --order-by-decreasing-area  --allow-reverse-merge
>>> I thought using precomp-sea is fine (I did not update the precomp-sea in
>>> between)
>>>
>>>
>>> On Fri, 11 Jun 2021 at 11:10, Felix Hartmann <extremecarver at gmail.com
>>> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>>>> wrote:
>>> compilation time includes splitting, and some other stuff. Loads of
>>> countries (9:34 / 9:21 (sorry dumb error 9:19) for all european single
>>> countries and a few continents (but not Europe continent) in hours.
>>>
>>> On Fri, 11 Jun 2021 at 11:08, Felix Hartmann <extremecarver at gmail.com
>>> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>>>> wrote:
>>> I just compiled the australia-oceania map with that option, and I think
>>> I must be missing something. It got substantially worse (it is identical
>>> until the overview map kicks in) - then I get some huge squares of sea
>>> missing. Compile time for all maps until that point before
>>> Compilation time is not up a lot:
>>> 0:12 - 9:46 = 9:34
>>> one week before (except older mapdata no changes in compilation
>>> procedure and older mkgmap) 20:17 - 5:38 = 9:19
>>>
>>> Anything I could be missing? I use the newest low-res branch build and
>>> added --improve-overview to the compilation process.
>>>
>>> in my polygons file I have:
>>> natural=sea  { add mkgmap:skipSizeFilter=true; set mkgmap:drawLevel=2 }
>>> [0x10f1d resolution 10]
>>>
>>>
>>> On Fri, 11 Jun 2021 at 07:12, Gerd Petermann <
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> >>><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>>>>> wrote:
>>> Hi all,
>>>
>>> I hoped for some positive feedback on this but got none so far. Did I
>>> miss something important?
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>> im Auftrag von Gerd
>>> Petermann <gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpeterm
>>>  ann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com>>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> >>>>>
>>> Gesendet: Montag, 7. Juni 2021 21:05
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> Hi Felix,
>>>
>>> the map contained was without routing or index, so for a normal map the
>>> difference should be even smaller.
>>> There is no need to change sea.zip. You just have to use
>>> --improve-overview for now.
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>> im Auftrag von Felix
>>> Hartmann <extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> ><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> >><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> ><mailto:extremecarver at g
>>>  mail.com<mailto:extremecarver at gmail.com>>><mailto:
>>> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
>>> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
>>> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
>>> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>>
>>> Gesendet: Montag, 7. Juni 2021 21:02
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> I guess that is a time for a full Norway map based on default style - so
>>> that is quite okay. Not a sea only Norway map... Well I hope that Thorsten
>>> Kukuk can adapt his sea files in the near future then...
>>>
>>> On Mon, 7 Jun 2021 at 19:37, Gerd Petermann <
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> >>><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>>>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> >>><ma
>>>  ilto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>>>>>> wrote:
>>> OK, I think found a good solution. Speed is quite OK, I see  9 min 48
>>> secs for map of norway and instead of 8 min 44 secs with  r4756, and I
>>> consider Norway to be a worst case.
>>>
>>> See
>>> https://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4761
>>> for the details.
>>>
>>> Gerd
>>>
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mail
>>>  to:mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>>> im Auftrag von Gerd
>>> Petermann <gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpeterm<mailto:gpeterm>
>>>  ann_muenchen at hotmail.com<mailto:ann_muenchen at hotmail.com>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>>>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> >>><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
>>> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
>>> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
>>> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
>>> gpetermann_muenchen at hotmail.com>>>>>>
>>> Gesendet: Montag, 7. Juni 2021 12:11
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> With the provided patch the speed is very poor for areas like Norway,
>>> probably twice the time.
>>> It is much slower because it does the complex multipolygon cutting for
>>> each level in the overview map. Probably too slow for complex coastal areas.
>>> This time will be the same for precomp-sea unless we can store sea
>>> polygons for each resolution.
>>>
>>> Performance will be no problem if I find a way to use Douglas-Peucker or
>>> similar before cutting. That was my original idea but DP produces self
>>> intersecting polygons and the MultipolygonCutter cannot cope with that.
>>>
>>> Gerd
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mail
>>>  to:mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>>> im Auftrag von Felix
>>> Hartmann <extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> ><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> >><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> ><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> >>><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> ><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
>>> >><mailto:extremecarver at g<mailto:extremecarver at g>
>>>  mail.com<http://mail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
>>> extremecarver at gmail.com>>>>>>
>>> Gesendet: Montag, 7. Juni 2021 11:55
>>> An: Development list for mkgmap
>>> Betreff: Re: [mkgmap-dev] Proof of concept for better sea in overview map
>>>
>>> Is it only much slower because of not using precomp sea? Or will it be
>>> much slower in general? And what is much slower for say Europe continent
>>> map? If a modern 4core/8thread processor needs 30 minutes more I would
>>> prefer the old way knowing it is worse (if the time difference is
>>> negligible with precomp-sea then that would be great).
>>>
>>> On Mon, 7 Jun 2021 at 12:26, Ticker Berkin <rwb-mkgmap at jagit.co.uk
>>> <mailto:rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>>>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailt
>>>  o:rwb-mkgmap at jagit.co.uk>>>>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>>>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk>><mailto:rwb-mkgmap at jagit.co.uk<mailto:
>>> rwb-mkgmap at jagit.co.uk><mailt
>>>  o:rwb-mkgmap at jagit.co.uk<mailto:o%3Arwb-mkgmap at jagit.co.uk>>>>>>>
>>> wrote:
>>> Hi Gerd
>>>
>>> This is going to take some studying to work out the implications. Can't
>>> do much for the next few days however, but will look carefully at the
>>> end of the week.
>>>
>>> Ticker
>>>
>>> On Sun, 2021-06-06 at 14:02 +0000, Gerd Petermann wrote:
>>> > Hi,
>>> >
>>> > the attached patch improves the overview map, but so far only when
>>> > precomp-sea is NOT used.
>>> > I tested it with --generate-sea=multipolygon,floodblocker  so that
>>> > mkgmap really has a multipolygon with the natual=sea data.
>>> >
>>> > For each level in the overview map it uses the original multipolygon
>>> > data to compute the rings which will might visible at the given
>>> > resolution. This requires more time compared to the current code but
>>> > the result is much better and some fine tuning is possible.
>>> >
>>> > To be able to use this also with --precomp-sea we need some changes
>>> > in the code which generates sea.zip so that one multipolygon relation
>>> > for each tile is stored.
>>> >
>>> > I've uploaded the results here:
>>> > https://files.mkgmap.org.uk/download/511/compare.7z
>>> > What do you think?
>>> >
>>> > Gerd
>>> >
>>> >
>>> > _______________________________________________
>>> > mkgmap-dev mailing list
>>> > mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.
>>>  org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap<mailto:mkgmap-dev at list
>>>  s.mkgmap>.
>>>  org.uk<http://org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>>>>>
>>> > https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.or
>>>  g.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.or<mailto:mkgmap-dev at lis
>>>  ts.mkgmap.or>
>>>  g.uk<http://g.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>>>>>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.or
>>>  g.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>>>>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.or
>>>  g.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>>>>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>>>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>>>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk>>>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
>>> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
>>> mkgmap-dev at lists.mkgmap.org.uk>>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk>
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>>
>>> --
>>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk
>>> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>
>>
>> --
>> Felix Hartman - Openmtbmap.org & VeloMap.org
>>
>>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
>

-- 
Felix Hartman - Openmtbmap.org & VeloMap.org
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