The solution was actually simple: the lines created by Srtm2Osm had a
"contour" tag only, but no "contour_ext" tag.
It is necessary to supply the "-cat" option, together with values for
major, medium, and minor elevation steps.
I.e. I changed the call to
Srtm2Osm.exe -step 25 -cat 500 100 25 -large
and now things work.
Am 13.02.2018 um 19:38 schrieb Bernhard Hiller:
I was trying to create a map of Taiwan including DEM data and
elevation contour lines. The DEM part was easy. But strangely, I
cannot get elevation contourlines.
I downloaded hgt data from Viewfinder Panoramas, and placed them into
the cache directory of srtm2osm.
I called srtm2osm in a batch file:
SET SRTM=:\Program Files (x86)\OpenStreetMap\Srtm2Osm\Srtm2Osm.exe"
SET OUTPUTDIR=\Maps\Raw\Taiwan.DEM\
%SRTM% -bounds1 21.81 120 23.6 122.1 -o %OUTPUTDIR%TaiwanS.osm
%SRTM% -bounds1 23.59 120 25.4 122.1 -o %OUTPUTDIR%TaiwanN.osm
TaiwanS mearures 1554993 kB, TaiwanN 2249418 kB (I must do it in 2
parts, otherwise the program uses more than 7 GB of RAM and causes
lots of paging).
Next, I sorted one of the files with osmosis (originally I sorted and
merged both of them, and then merged with an extract from Geofabrik;
that's what I plan to do when I got things working...):
SET OSMOSIS=:\Program Files
(x86)\OpenStreetMap\osmosis-0.46\bin\osmosis.bat"
SET INPUTDIR=\Maps\Raw\Taiwan.DEM\
%OSMOSIS% --read-xml %INPUTDIR%TaiwanS.osm --sort --write-pbf
%INPUTDIR%Taiwan_Ele.osm.pbf
The output file measures 16670 kB.
Next, I split it with
SET JAVA=:\Program Files\Java\jre1.8.0_121\bin\java.exe"
SET SPLITTER=:\Program Files
(x86)\OpenStreetMap\splitter-r590\splitter.jar"
SET INPUTDIR=\Maps\Raw\Taiwan.DEM\
SET INPUTDATA=iwan_Ele.osm.pbf
SET NAME=ernieMap Bike Taiwan"
%JAVA% -Xmx6G -jar %SPLITTER% ^
%INPUTDIR%\%INPUTDATA% ^
--description=AME% ^
--max-nodes%00000 ^
--no-trim ^
--mapidG120001 ^
--max-threads=^
--keep-complete=ue
which creates 3 pbf-files.
Finally, I build the map with
SET JAVA=:\Program Files\Java\jre1.8.0_121\bin\java.exe"
SET MKGMAP=:\Program Files (x86)\OpenStreetMap\mkgmap-r4107\mkgmap.jar"
SET
PREPROC=\Data\Projects\Projects.Net2\StylePreProcessor\bin\Debug\StylePreProcessor.exe
SET STYLE=\Maps\Development\Style.Mapnik\Mapnik.Bike
SET DEMPATH=\Maps\Raw\Taiwan.DEM
SET NAME=ernieMap Bike Taiwan"
SET TYP=4712.TYP
%PREPROC% /in=\Maps\Development\Style.Mapnik\Mapnik.Base /out=%STYLE%
/defines=KE,THAI
copy E:\Maps\Development\Style.Mapnik\%TYP% %TYP%
copy "C:\Program Files (x86)\OpenStreetMap\GMT\gmt.exe" gmt.exe
gmt.exe -wy 4712 %TYP%
%JAVA% -Xmx6G -ea -jar %MKGMAP% ^
--style-file=TYLE% ^
--family-name�rnieMapTaiwan ^
--family-id712 ^
--product-id=^
--description=AME% ^
--series-name=AME% ^
--name-tag-list=me:en,int_name,name ^
--latin1 ^
--add-pois-to-areas ^
--route ^
--location-autofill=unds,nearest ^
--preserve-element-order ^
--draw-priority% ^
--index ^
--nsis ^
--show-profiles=^
--generate-sea=ltipolygon,extend-sea-sectors,floodblocker ^
--max-jobs=^
--dem-poly=eas.poly ^
--x-dem=EMPATH% ^
--x-dem-dists314,4000,6000,8000,10000,15000,20000,30000 ^
--gmapsupp 4*.osm.pbf ^
%TYP%
move gmapsupp.img E:\Maps\Use\Taiwan.IMG
which creates an IMG file of 18798 kB.
It is recognized by my Oregon 600.
In the demo mode, I navigate to a waypoint (Luigui, 22.99573 N,
120.63496 E).
I expect to see a map of contourlines only. But I get a completely
white map.
Elevation from DEM is 250m directly adjacent to the waypoint, and
other sensible values nearby.
The style file contains:
contour=evation & contour_ext=elevation_major & (ele > 0 | ele <
0) { name '${ele|conv:m=t}'; } [0x20 level 4]
contour=evation & contour_ext=elevation_medium & (ele > 0 | ele <
0) { name '${ele|conv:m=t}'; } [0x21 level 2]
contour=evation & contour_ext=elevation_minor & (ele > 0 | ele <
0) { name '${ele|conv:m=t}'; } [0x22 level 0]
The TYP file (created and compiled with MapTk) contains:
[Polyline]
Type=20
String=Höhenlinie
String=Elevation
Color=0x000000
Line
[END]
[Polyline]
Type=21
String=Höhenlinie
String=Elevation
Linewidth=
Color=00x000000
[END]
[Polyline]
Type=22
String=Höhenlinie
String=Elevation
Linewidth=
Color=00x000000
[END]
which should cause black elevation contour lines.
What do I do wrong?
Thanks a lot for your hints.
Kind regards,
Bernhard
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