Best practice including SRTM lines
Hi, Is there a document that describes how to include strm contour lines in my Garmin maps? What is the best practice? Normally I generate maps for The Netherlands, so contour lines are not that important to me. But this summer we will be going to Austria so I want to include them. I can use srtm2osm to download the data in .osm-format, but is there a document describing how I can add them to my Garmin map? Do I need to create a new family-id? There are several threads to this list in the archives in Q3 of 2009 about native srtm support. But is this feature described a bit more in detail? I can't find anything about this in the help. One of the threads starts at: http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2009q3/002581.html Thanks in advance, Frank
On Tue, May 17, Frank Fesevur wrote:
Hi,
Is there a document that describes how to include strm contour lines in my Garmin maps? What is the best practice? Normally I generate maps for The Netherlands, so contour lines are not that important to me. But this summer we will be going to Austria so I want to include them.
I can use srtm2osm to download the data in .osm-format, but is there a document describing how I can add them to my Garmin map? Do I need to create a new family-id?
The SRTM data is fix and will not change. So why waste all the resources with every build and include it directly? What most people are doing is, create an extra transparent SRTM layer with an own family-id and a higher draw-level than your base map. You only need to do this once. If you have a device, which can handle several maps, you only need to copy this img once to your GPS device and you can enable/disable it in the menu. If you have a device, which does not allow several different maps as extra files, you need to combine all the layers with gmaptool for example. This is working fine for me since a long time. Thorsten -- Thorsten Kukuk, Project Manager/Release Manager SLES SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)
The easiest way is to download already made strm contourlines from openmtbmap.org or compterteddy: http://openmtbmap.org/download/#contourlines http://wiki.openstreetmap.org/wiki/User:Computerteddy#H.C3.B6henlinien_von_E... If you want to include them into your maps to make altitude profiles it will be a bit more difficult but it's possible. Select the tiles that you need, lets say 12345678.img 12345679.img etc. Include them to your mkgmap.args list, make sure that those contour img's have a higher tile number. With the mkgmap option show-profiles=1 you can make altitude profiles. It's also important that the zoom levels are the same. You can see which zoom levels are used with gpsmapedit. With this programm you also can modify the tile numbers and add more zoom levels if needed. Save the edited img as mp file. For my Benelux maps the only way I can see the contour lines in the osm map is when mkgmap compiles the img from the mp files: mapname: 10010057 description: NL-Haarlem input-file: c:\Downloads\Benelux\10010057.osm.gz # contours mapname: 10010101 description: Openfietsmap (contours) input-file: contours\10010101.mp Sometimes it works if you use input-file: contours\10010101.img alone without the line "mapname: 10010101" but since I use everytime an upgraded version of mkgmap I have to process the contour files every time again, oherwise they are not visible (I see only the altitude numbers, not the lines).
Thanks for the replies. I think I will first try to download the contour lines from openmtbmap.org. Generating my own seems a bit too much work for just the holiday. Regards, Frank 2011/5/17 Minko <ligfietser@online.nl>:
The easiest way is to download already made strm contourlines from openmtbmap.org or compterteddy: http://openmtbmap.org/download/#contourlines http://wiki.openstreetmap.org/wiki/User:Computerteddy#H.C3.B6henlinien_von_E...
If you want to include them into your maps to make altitude profiles it will be a bit more difficult but it's possible.
Select the tiles that you need, lets say 12345678.img 12345679.img etc. Include them to your mkgmap.args list, make sure that those contour img's have a higher tile number. With the mkgmap option show-profiles=1 you can make altitude profiles. It's also important that the zoom levels are the same. You can see which zoom levels are used with gpsmapedit. With this programm you also can modify the tile numbers and add more zoom levels if needed. Save the edited img as mp file. For my Benelux maps the only way I can see the contour lines in the osm map is when mkgmap compiles the img from the mp files:
mapname: 10010057 description: NL-Haarlem input-file: c:\Downloads\Benelux\10010057.osm.gz
# contours
mapname: 10010101 description: Openfietsmap (contours) input-file: contours\10010101.mp
Sometimes it works if you use input-file: contours\10010101.img alone without the line "mapname: 10010101" but since I use everytime an upgraded version of mkgmap I have to process the contour files every time again, oherwise they are not visible (I see only the altitude numbers, not the lines). _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Am 17.05.2011 12:47, schrieb Frank Fesevur:
Hi,
Is there a document that describes how to include strm contour lines in my Garmin maps? What is the best practice? Normally I generate maps for The Netherlands, so contour lines are not that important to me. But this summer we will be going to Austria so I want to include them.
I can use srtm2osm to download the data in .osm-format, but is there a document describing how I can add them to my Garmin map? Do I need to create a new family-id?
There are several threads to this list in the archives in Q3 of 2009 about native srtm support. But is this feature described a bit more in detail? I can't find anything about this in the help. One of the threads starts at: http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2009q3/002581.html
Thanks in advance, Frank _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Hello Frank, i'm using groundtruth for extracting the required elevation data. I have windows 7 and i'm playing with an variation of the "de:all in one"-map. The elevation has to be extracted only once and my script contains the roughly scetched bounding box for the elevation data. regards Rudolf
participants (4)
-
Frank Fesevur -
Minko -
Rudolf Naujack -
Thorsten Kukuk