Hi Frank

I wonder if you could help me with the following points which relate to DEM on a gps.

1) One of the problems of DEM on a gps is  the intensity of darkness which you get near steep hills.

It looks terrific in Basecamp but I prefer it to be lighter.

I have experimented with higher values of dlon , i e dlon=.01 - this does seem to decrease the contrast but instead ofcourse it tends to spread a grey

veil over the whole map.

Is there another option I could use ?

2) Related to this ; its great to be able to create different zoom levels , however

I have not been able to  do the following:

level 1 - no dem  level 2 dem

This would result in a more Basecamp style zoom, where the dem disappears when you zoom in.

I tried --dlon=0 --dlon=0.0027 etc but setting it to 0 causes an error

Would this be at all possible?

Thanks in advance

r

Nick

I'm afraid I don't understand your tools Frank.

I guess I will wait until mkgmap has included the DEM handling.

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Van: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> namens Frank Stinner <Frank.Stinner@kabelmail.de>
Verzonden: donderdag 2 november 2017 11:57:06
Aan: mkgmap-dev@lists.mkgmap.org.uk
Onderwerp: Re: [mkgmap-dev] a new DEM-File Option

 

Hi,

i don't now your build-process. But i have installed your original map (without the DEM's). After you include the DEM's in this IMG files, create with
gmtool with this NEW IMG's a new TDB.

For the old TDB you get with

    gmtool -i 10010000.tdb -I 2

the following output:

Datei 'd:\tmp\OpenFietsMap\10010000.tdb'
21729 Bytes (21,2 kB, 0,0 MB), letzter Schreibzugriff 28.10.2017 01:43:28
   TDBVersion:          407
   CodePage:            1252 (0x000004E4)
   Family-ID:           10010 (0x271A)
   Product-ID:          1 (0x0001)
   ProductVersion:      1710 (0x06AE)
   FamilyName:          OpenFietsMap (BNL)
   SeriesName:          OpenFietsMap (Benelux_v28-10-2017)
   Routingfähig:        1 (0x01)
   größter Routing-Typ: 24 (0x18)
   mit Contourlinien:   1 (0x01)
   DEM:                 0 (0x00)
   niedrigster MapLevel:18 (0x12)
   Beschreibung:        Test preview map
....
   Unknown29:           10000 (0x00002710)
   Copyright:           [CopyrightInformation, ProductInformationAndPrinting]
                        Map created with mkgmap-r3908
                        [CopyrightInformation, ProductInformationAndPrinting]
                        PROGRAM LICENCED UNDER GPL V2
                        [CopyrightInformation, ProductInformationAndPrinting]
                        MAP DATA © OPENSTREETMAP.ORG, MAP LAYOUT © OPENFIETSMAP.NL, SRTM DATA © U.S. GEOLOGICAL SURVEY
                        [CopyrightInformation, ProductInformationAndPrinting]
                        OPENSTREETMAP.ORG CONTRIBUTORS|SEE: HTTP://WIKI.OPENSTREETMAP.ORG/INDEX.PHP/ATTRIBUTION
   Overviewmap:
     Kartenummer:       10010000 (0x0098BD90)
     übergeordnet:      0 (0x00000000)
     Beschreibung:      OFM_BNL(28-10-2017)
     Anzeigebereich:    Lon 2,373047°..7,382920°, Lat 49,350586°..55,264900°
   Detailkarten:        145
     Kartenummer:       10010001 (0x0098BD91)
       übergeordnet:    10010000 (0x0098BD90)
       Beschreibung:    BE-Ieper (10010001)
       Anzeigebereich:  Lon 2,373047°..2,900391°, Lat 50,668945°..50,888672°
       Dateien:         10010001.TRE (38603 Byte), 10010001.RGN (3909498 Byte), 10010001.LBL (175026 Byte), 10010001.NET (428039 Byte), 10010001.NOD
(714739 Byte)
....

The main-part is a long list of all mapnumbers/files with the subfiles. It is necessary to rebuild this list with the DEM-files with their filesize.
That's why use the NEW IMG's for this.

Frank

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