[mkgmap-dev] The "Elevation=M" in the header of the polish .MP files does not work

Thu Mar 2 17:03:00 GMT 2023

Hi

I did a search for the word " CONTOUR " in the file  MPCTypes.txt .
In addition to the types mentioned above, there are several more:

0x10105 =Marine Lines/MARINE_CONTOUR_LINE/Marine contour line/Non NT, NT
0x10301 =Isobath Area Outlines/ISOBATH_DEPTH_CONTOUR/Depth contour/Non NT, NT

0x10900 =Contour Lines/MINOR_CONTOUR(NT)/Minor land-based contour line/NT
0x10901 =Contour Lines/INT_CONTOUR(NT)/Intermediate contour (should be used for about every 5th contour line)/NT
0x10902 =Contour Lines/MAJOR_CONTOUR(NT)/Major contour (should be used for about every 10th contour line)/NT
0x10903 =Contour Lines/MINOR_BATHY_CONTOUR(NT)/Minor bathymetric, or depth, contour/NT
0x10904 =Contour Lines/INT_BATHY_CONTOUR(NT)/Intermediate bathymetric, or depth, contour (should be used for about every 5th contour line)/NT
0x10905 =Contour Lines/MAJOR_BATHY_CONTOUR(NT)/Major bathymetric, or depth, contour (should be used for about every 10th contour line)/NT

The first two types ( 0x10105 and 0x10301 ) seem to be string types.
But the rest of the types ( 0x10900 … 0x10905 ) are numeric and affected by the same subject problem :(
  PS: I haven't tested the new build yet.

>
>Четверг, 2 марта 2023, 18:01 +03:00 от Gerd Petermann <gpetermann_muenchen at hotmail.com>:
> 
>Hi all,
>
>OK, I see no problems to change this method in GType.java:
>        public static boolean isContourLine(MapLine line) {
>                return line.getType() >= 0x20 && line.getType() <= 0x22 && !(line instanceof MapShape);
>        }
>
>All I have to do is to change 0x22 to 0x25, right?
>
>Gerd
>
>________________________________________
>Von: mkgmap-dev < mkgmap-dev-bounces at lists.mkgmap.org.uk > im Auftrag von Vadim Karpov < bombur at mail.ru >
>Gesendet: Donnerstag, 2. März 2023 14:38
>An:  mkgmap-dev at lists.mkgmap.org.uk
>Betreff: Re: [mkgmap-dev] The "Elevation=M" in the header of the polish .MP files does not work
>
>Hi
>
>Yes.
>
>Types 0x23.0x24.0x25 are used to create bathymetric maps.
>
>Information from the MPCTypes.txt file (TypViewer application):
>
>0x02000=Contour Lines/MINOR_CONTOUR/Minor land-based contour line/Non NT
>0x02100=Contour Lines/INT_CONTOUR/Intermediate contour (should be used for about every 5th contour line)/Non NT
>0x02200=Contour Lines/MAJOR_CONTOUR/Major contour (should be used for about every 10th contour line)/Non NT
>
>0x02300=Contour Lines/MINOR_BATHY_CONTOUR/Minor bathymetric, or depth, contour/Non NT
>0x02400=Contour Lines/INT_BATHY_CONTOUR/Intermediate bathymetric, or depth, contour (should be used for about every 5th contour line)/Non NT
>0x02500=Contour Lines/MAJOR_BATHY_CONTOUR/Major bathymetric, or depth, contour (should be used for about every 10th contour line)/Non NT
>
>Четверг, 2 марта 2023, 12:01 +03:00 от Ticker Berkin < rwb-mkgmap at jagit.co.uk >:
>
>Hi
>
>My understanding of the default Garmin usage is that
> 0x20..0x22 are land/height contours (Minor to Major)
> 0x23..0x25 are sea/depth " "
>
>Ticker
>
>On Thu, 2023-03-02 at 08:52 +0000, Gerd Petermann wrote:
>> Hi Vadim,
>>
>> I see code in mkgmap to handle the statement with Elevation=m or
>> Elevation=M, but it is only used for the line types 0x20 .. 0x22.
>> Do you have a good reason to use line type 0x25 instead?
>>
>> Gerd
>>
>>
>> ________________________________________
>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk< /compose?To=mkgmap%2ddev%2dbounces at lists.mkgmap.org.uk >> im Auftrag
>> von Vadim Karpov <bombur at mail.ru< /compose?To=bombur at mail.ru >>
>> Gesendet: Mittwoch, 1. März 2023 13:00
>> An: mkgmap-dev at lists.mkgmap.org.uk< /compose?To=mkgmap%2ddev at lists.mkgmap.org.uk >
>> Betreff: [mkgmap-dev] The "Elevation=M" in the header of the polish
>> .MP files does not work
>>
>> Good afternoon !
>>
>> I am using the latest version of MkGMap and trying to create a depth
>> chart with isolines (types 0x24, 0x25).
>>
>> The problem is that the compiler interprets the depth specified in
>> Meters as in Feet.
>> The result is independent of the presence or value of the
>> "Elevation=M" parameter.
>>
>> And I didn't find an alternative command line option. :(
>>
>> So how can I tell the compiler to treat all numerical depth and
>> height values in an .MP file as meters and not feet?
>>
>> Thanks for the advice.
>>
>> PS: cGpsMapper works fine with "Elevation=M" of course.
>> PPS: Example of polylyne defs:
>>
>> [POLYLINE]
>> Type=0x02500
>> Label=21
>> EndLevel=3
>> Data0=(47.139263517000003,-122.560520313), ...
>> [END]
>>
>> [POLYLINE]
>> Type=0x02500
>> Label=12
>> EndLevel=3
>> Data0=(47.127846400000003,-122.562501059), ...
>> [END]
>>
>> --
>> Vadim Karpov
>> _______________________________________________
>> mkgmap-dev mailing list
>> mkgmap-dev at lists.mkgmap.org.uk< /compose?To=mkgmap%2ddev at lists.mkgmap.org.uk >
>>  https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>--
>Vadim Karpov
>Отправлено из Почты Mail.ru<https://trk.mail.ru/c/zzm979>
> 

--
Vadim Karpov

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