- mkgmap-dev - The mkgmap lists

DEM format Questions
by Gerd Petermann 10 Nov '17

10 Nov '17

Hi Frank, If I got that right your program always writes a 0-Bit to signal the beginning of a "plateau". While working on the decoder I wonder what this information is used for. My understanding is that both the reader and the writer know when a plateau starts, so there should be no need for this extra 0-Bit. On the other hand, the pdf says "Für Plateau-Nachfolger wird ein 0-Bit weniger als maximalen 0-Bitanzahl verwendet!" Maybe you created special cases because of this 1st 0? Gerd

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Rendering Error at Region FR-Saint Maximin la Sainte Baume and around Gibraltar
by Manfred Haiduk 09 Nov '17

09 Nov '17

Hallo i'm not quite sure, if this error is related to mkgmap or the OSM-Database. Just fiddling around making maps for my garmin device. The last three times, when i compiled my europe map, i have to discover two errors. The region around Gibraltar will not show up the mediterranian sea but the underlying terrain will show up as "unknown terrain". This error is only about 80 km around Gibraltar with Gibraltar nearly in the center. The other error is in the vicinity of the area called by splitter FR-Saint Maximin la Sainte Baume. At this complete square the default terrain layer is not compiled as undefined area but as sea. Any idea, if these errors are due to mkgmap or osm database ? -- Mit freundlichen Grüßen ##################################################### Manfred Haiduk, Zum Fischbach 9, 52393 Hürtgenwald e-mail mhaiduk(a)t-online.de #####################################################

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Re: [mkgmap-dev] BuildDEMFile
by Frank Stinner 09 Nov '17

09 Nov '17

Sorry, this version is catching on negativ values the false HGT's. It is just rectified. Frank

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a new DEM-File Option
by Frank.Stinner 06 Nov '17

06 Nov '17

Hi, i have find with a lot of "trial and error" a algorithm to create DEM-Files for a Height-Profil. You can find the description (in german) at https://github.com/FSofTlpz/Garmin-DEM-Build/blob/master/DEM-Daten.pdf With this data we can for example draw a track in mapsource or basemap and we at once the Height-Profil of our track. At second, the map looks like better. I have create a experimental program called BuildDEMFile :) to build this files. Experimental means, the encoder is for exploring the algorithm but not for speed. You can find the programit at https://github.com/FSofTlpz/Garmin-DEM-Build. It is possible, that there minor bugs, but i have it successfull testet for 2 different germany-maps. I have a wish: Can you in mkgmap insert a new option, for example --dem with path to DEM-files, and include these files in the join-process for the IMG-files? So far only joined the LBL-, NET-, NOD-, RGN- and TRE-File. Also should be set the dem-flag in TDB-File. If so, i can build the DEM-Files with area-size from the splitter-file areas.list. I hope thats the same like in the TRE-Files? That would be a little bit easier then my fiddly way: split the ready IMG-files, build the DEM-files and then join the files to new IMG-files. And at last i must change the dem-flag in the TDB-File. with best regards Frank --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. https://www.avast.com/antivirus

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line draw order
by demon.box 02 Nov '17

02 Nov '17

Hi, excuse me, but I don't understand.... With these style in lines: waterway=river [0x1000B resolution 24] highway=tertiary [0x3 road_class=4 road_speed=7 resolution 24] I have this result: <http://gis.19327.n8.nabble.com/file/t339261/1.jpg> where the road cross the river but with this style in lines: waterway=river [0x1000B resolution 24] highway=tertiary [0x5 road_class=4 road_speed=7 resolution 24] (I have only changed the tertiary type from 0x3 to 0x5) I have this result: <http://gis.19327.n8.nabble.com/file/t339261/2.jpg> where the river cross the road... I use these options: add-pois-to-lines preserve-element-order remove-short-arcs latin1 lower-case check-styles route index name-tag-list=name:it,name adjust-turn-headings merge-lines pois-to-areas-placement="building=entrance" split-name-index housenumbers why is there this difference only changing the road type from 0x3 to 0x5? how can I make the 0x5 (road) type cross the 0x1000B (river)? thanks. --enrico -- Sent from: http://gis.19327.n8.nabble.com/Mkgmap-Development-f5324443.html

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How to install maps with DEM onto a GPS
by nwillink 31 Oct '17

31 Oct '17

Hi All I offer one possible solution for installing a DEM map on a GPS using Garmin's Mapinstall. Its not ideal but it works once you take account of the following: After much frustration, I think I have resolved the problem with Mapinstall. It seems that Mapinstall ,more often than not, detects an issue with one of the files created using mkgmap's -gmapi option. I have not tried to work out which one but I can say that ,so far, all gmaps created using Javawa Mapconverter have formed a successful basis for uploading dem maps to a gps device. 1) Create your Mapsource/Basecamp map using mkgmap Ignore the gmap if created by mkgmap drag your mapfolder onto Javawa's mapconcerter to create a new gmap - place this in c:\programdata\garmin\maps 2) I use Franks excellent program to create & add dem files 3) I add DEM file sizes to the .tdb file - I have presumed that all dem file sizes require a maximum of 4 bytes - I have not encountered files which require 5 bytes - please let me know if is a DEM file which needs 5 byte. 4) I have not had to add or replace separate bytes in the tdb file to make it work apart from setting the DEM flag 5) If some maps have no dem then no dem height or ref to a DEM is added to the tdb 6) I now use Mapinstall and upload map to my GPS. This is one solution which now seems to work. As this is rather long winded, you don't really want to do this each time you update a map! Perhaps we need to look at ways of creating 'empty' maps with just DEM as a separate gmapsupp. examples on Oregon: Greece : <http://gis.19327.n8.nabble.com/file/t339487/241.bmp> <http://gis.19327.n8.nabble.com/file/t339487/265.bmp> <http://gis.19327.n8.nabble.com/file/t339487/350.bmp> -- Sent from: http://gis.19327.n8.nabble.com/Mkgmap-Development-f5324443.html

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crash in BinaryOp
by Mike Baggaley 28 Oct '17

28 Oct '17

I included revision 3997 in my main build and am now getting a crash as follows when I build my GB map (I don't get the crash on the small bit of test data I previously used): java.lang.NoSuchMethodError: uk.me.parabola.mkgmap.osmstyle.eval.BinaryOp.setFirst(Luk/me/parabola/mkgmap /osmstyle/eval/Op;)V at uk.me.parabola.mkgmap.osmstyle.eval.ExpressionReader.runOp(ExpressionReader. java:242) at uk.me.parabola.mkgmap.osmstyle.eval.ExpressionReader.readConditions(Expressi onReader.java:98) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.loadFile(RuleFileReader.java:1 24) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.load(RuleFileReader.java:95) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.readRules(StyleImpl.java:285) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.<init>(StyleImpl.java:155) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.readStyle(StyleImpl.java:545) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.createConverter(OsmMapData Source.java:333) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.setupHandler(OsmMapDataSou rce.java:226) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.parse(OsmMapDataSource.jav a:168) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.load(OsmMapDataSource.java :150) at uk.me.parabola.mkgmap.main.MapMaker.loadFromFile(MapMaker.java:154) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:52) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:263) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:259) Looking at ExpressionReader.runOp, this calls BinaryOp binaryOp = (BinaryOp) op; binaryOp.setFirst(arg1); binaryOp.setSecond(arg2); However, BinaryOp does not appear to have an implementation of setFirst or getFirst. Neither BinaryOp nor ExpressionReader were changed in this handover, so this looks like a bug that was already there. Regards, Mike

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BuildDEMFile : false error
by David 28 Oct '17

28 Oct '17

Hello Frank, Thank you for you answer, my temporary solution was to create hgt files filled with 0 (it works like a charm). I discovered GetFilename() generates SRTM filename in lowercase whereas they are usually in uppercase. David

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BuildDEMFile : false error
by David 27 Oct '17

27 Oct '17

Changes on BuilDEMFile source code between 2017/10/19 and 2017/10/26 introduced an error. Latest version cannot produce DEM files for « La Réunion ». The program seems to ask for some SRTM that does not exist. It should need only S22E055.hgt and S21E055.hgt but with version from 2017/10/26, the program stopped instead to continue (it requires s22e056.hgt, s22e054.hgt, ss22e055.hgt, s21e056.hgt and s21e055.hgt). David

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name for residential
by Arndt Röhrig 19 Oct '17

19 Oct '17

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