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2008-04-25
, 20:50
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Posts: 4,930 |
Thanked: 2,272 times |
Joined on Oct 2007
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#2
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The process of converting scanned or otherwise non-repository maps to a MM database has been discussed a bit.
The search is your friend, and the MM documentation is very good as well, though I don't think it covers this particularly.
You can use gnuite's site to get a route between any points Google Maps can understand and route. I doubt that Google Maps knows how to get around in the water
, so you'll probably need to examine the GPX file for some route and figure out how to generate one of those from some other source.
If by route support, you mean generating routes on the tablet, no; that requires vector maps (which MM doesn't use) as well as a routing engine. But you can already automatically download routes, or load any gpx route.
The search is your friend, and the MM documentation is very good as well, though I don't think it covers this particularly.
You can use gnuite's site to get a route between any points Google Maps can understand and route. I doubt that Google Maps knows how to get around in the water
, so you'll probably need to examine the GPX file for some route and figure out how to generate one of those from some other source.If by route support, you mean generating routes on the tablet, no; that requires vector maps (which MM doesn't use) as well as a routing engine. But you can already automatically download routes, or load any gpx route.
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2008-04-25
, 22:35
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Posts: 348 |
Thanked: 61 times |
Joined on Dec 2007
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#3
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It's not possible to generate a route from a scanned chart, but it is possible to generate a direct route between two sets of lat/lon. I don't think MM does this, but it's simply a matter of using a little trigonometry. You can do it with any spreadsheet, such as gnumeric, by using the formulae found at Ed Williams' excellent Aviation Formulary. You don't need turn-by-turn directions for sailing, just a distance and direction. There are various apps available which will do this, acting as a handheld GPS. I use Cetus on my Palm, but I haven't investigated any Linux apps. All you need is a pointer, with distance and direction to the destination. I think it would be possible to scan your chart into MM and have your waypoints displayed, but it won't generate a route. Perhaps gnuite could incorporate that, but it seems more trouble than it's worth for one user, perhaps as many as a few dozen eventually.
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2008-04-26
, 23:07
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Posts: 1,245 |
Thanked: 421 times |
Joined on Dec 2005
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#4
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Maemo Mapper has some very basic support for creating your own arbitrary routes (including waypoints) on the map. It's not the most user-friendly solution, but if you tap-and-hold on a location on the map and select "Tap Point", you can add either a route point or a waypoint to your route. (The difference between a route point and a waypoint is that a waypoint includes a textual description that usually defines instructions for what to do next, like "Turn left at Main Street.")
Unfortunately, you can't add route points by coordinate, but you have two options:
1. Use "View | Go to | Lat/Lon" and estimate the point that represents your desired latitude and longitude. This works best when zoomed in.
2. Add a POI based on the lat/lon, then tap-and-hold and use the "POI" sub-menu instead of the "Tap Point" sub-menu.
Last edited by gnuite; 2008-04-26 at 23:09.
Unfortunately, you can't add route points by coordinate, but you have two options:
1. Use "View | Go to | Lat/Lon" and estimate the point that represents your desired latitude and longitude. This works best when zoomed in.
2. Add a POI based on the lat/lon, then tap-and-hold and use the "POI" sub-menu instead of the "Tap Point" sub-menu.
Last edited by gnuite; 2008-04-26 at 23:09.
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2008-04-28
, 08:54
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Posts: 5 |
Thanked: 0 times |
Joined on Apr 2008
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#5
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Are there any chance, that Maemo Mapper in the future will be able to import Routes from .gpx files? I have lots of good (and well tested :-) routes exported from my old garmin gps45.
Right now Maemo Mapper imports waypoints (called POI) and tracks (which is not the same as routes).
Right now Maemo Mapper imports waypoints (called POI) and tracks (which is not the same as routes).
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2008-04-28
, 22:26
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Posts: 4,930 |
Thanked: 2,272 times |
Joined on Oct 2007
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#6
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It loads routes from gpx files right now. I loaded one this morning generated with GMapToGPX; if you try loading yours, but it rejects them, then GPSbabel can probably help; I've heard it's one of the best tools for translating among gpx variants (and other formats) to suit different GPS/GIS units. I've never had occasion to use it, though.
And waypoints are not POI; waypoints are part of a route. Essentially, as I understand it, a route point with directions or other text attached.
And waypoints are not POI; waypoints are part of a route. Essentially, as I understand it, a route point with directions or other text attached.
| The Following 3 Users Say Thank You to Benson For This Useful Post: | ||
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2008-04-29
, 01:52
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Posts: 348 |
Thanked: 61 times |
Joined on Dec 2007
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#7
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If gpsbabel can't convert it, it can't be converted. It works with just about every file format there is.
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2008-04-29
, 09:37
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Posts: 5 |
Thanked: 0 times |
Joined on Apr 2008
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#8
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Thanks for the hint - GMapToGpx is cool. But Maemo Mapper complains about xml parsing error(s), when I try to open the simple testroute, I generated with GMapToGpx.
The installed version of MM is 2.4.1
Strange?
The installed version of MM is 2.4.1
Strange?
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2008-04-29
, 11:49
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Posts: 5 |
Thanked: 0 times |
Joined on Apr 2008
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#9
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In offroad navigation a waypoint is a location with a name and maybe a description.
(in car navigation POI means the same thing).
When generating a route, waypoints can be chosen as route points.
When maemo Mapper imports "POI", it is gpx-waypoints, that is imported.
So route points are part of a route.
See evt http://www.topografix.com/GPX/1/1/.
Anyway, here are a very simple example of a route, that cannot be opened by MM:
<?xml version="1.0" encoding="UTF-8"?>
<gpx version="1.1"
creator="GMapToGPX 5.7b - http://www.elsewhere.org/GMapToGPX/"
xmlns="http://www.topografix.com/GPX/1/1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">
<rte>
<name>route0</name>
<cmt>Vestermark to Vestermark</cmt>
<desc>Vestermark to Vestermark</desc>
<rtept lat="54.74952" lon="11.77151">
<name>GRTP-001</name>
<cmt>Koer mod nordvest ad Vestermark mod Ebbe Alle</cmt>
<desc>Koer mod nordvest ad Vestermark mod Ebbe Alle</desc>
</rtept>
<rtept lat="54.75109" lon="11.76584">
<name>GMLS-001</name>
<cmt>Vestermark</cmt>
<desc>Vestermark</desc>
</rtept>
</rte>
</gpx>
(in car navigation POI means the same thing).
When generating a route, waypoints can be chosen as route points.
When maemo Mapper imports "POI", it is gpx-waypoints, that is imported.
So route points are part of a route.
See evt http://www.topografix.com/GPX/1/1/.
Anyway, here are a very simple example of a route, that cannot be opened by MM:
<?xml version="1.0" encoding="UTF-8"?>
<gpx version="1.1"
creator="GMapToGPX 5.7b - http://www.elsewhere.org/GMapToGPX/"
xmlns="http://www.topografix.com/GPX/1/1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd">
<rte>
<name>route0</name>
<cmt>Vestermark to Vestermark</cmt>
<desc>Vestermark to Vestermark</desc>
<rtept lat="54.74952" lon="11.77151">
<name>GRTP-001</name>
<cmt>Koer mod nordvest ad Vestermark mod Ebbe Alle</cmt>
<desc>Koer mod nordvest ad Vestermark mod Ebbe Alle</desc>
</rtept>
<rtept lat="54.75109" lon="11.76584">
<name>GMLS-001</name>
<cmt>Vestermark</cmt>
<desc>Vestermark</desc>
</rtept>
</rte>
</gpx>
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2008-04-29
, 12:47
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Posts: 4,930 |
Thanked: 2,272 times |
Joined on Oct 2007
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#10
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This is what I got from GMapToGPX; no massaging.
It seems to be saving it as a track, not a route, but MM imports it as a route just fine. On examination, it seems MM also saves routes as tracks.
It seems to be saving it as a track, not a route, but MM imports it as a route just fine. On examination, it seems MM also saves routes as tracks.
HTML Code:
<?xml version="1.0" encoding="UTF-8"?> <gpx version="1.1" creator="GMapToGPX 5.7b - http://www.elsewhere.org/GMapToGPX/" xmlns="http://www.topografix.com/GPX/1/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"> <trk> <name>Google Driving Directions Track</name> <trkseg> <trkpt lat="41.69123" lon="-86.23549"><cmt>Head south on N Eddy St toward St Vincent St</cmt></trkpt> <trkpt lat="41.6885" lon="-86.23547"></trkpt> <trkpt lat="41.68607" lon="-86.23535"></trkpt> <trkpt lat="41.6835" lon="-86.23533"></trkpt> <trkpt lat="41.6779" lon="-86.23518"><cmt>Turn right at E Colfax Ave/W US-20-BR</cmt></trkpt> <trkpt lat="41.67777" lon="-86.24748"></trkpt> <trkpt lat="41.67777" lon="-86.25045"></trkpt> <trkpt lat="41.67772" lon="-86.25201"><cmt>Turn left at IN-933 S/N Main St/US-31-BR S</cmt></trkpt> <trkpt lat="41.675" lon="-86.25195"><cmt>Turn right at W Jefferson Blvd</cmt></trkpt> <trkpt lat="41.675" lon="-86.25267"><cmt>112 S Lafayette Blvd</cmt></trkpt> </trkseg> <trkseg> <trkpt lat="41.675" lon="-86.25267"></trkpt> <trkpt lat="41.67501" lon="-86.25355"><cmt>Turn right at S Lafayette Blvd</cmt></trkpt> <trkpt lat="41.67618" lon="-86.25357"></trkpt> </trkseg> </trk> </gpx>
Maps and images are loaded very fast and can be downloaded to the device. That is just great!
But for sailing I miss 2 features:
1. The ability to use scanned sea charts
2. Suppport for routes between waypoints (not between track points)
Are there any tricks to load scanned maps?
Are there any plans to implement route support in MM?
By the way: import of .gpx files is not very elegant. Tracks and waypoints can't be loaded from the same file. Geocaching .gpx files cant be loaded either.