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2007-08-21
, 19:23
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Posts: 299 |
Thanked: 168 times |
Joined on Jun 2006
@ Wales UK
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#2
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Straight from the gpsbabel docs
Thats -zero not -ohhh in the wget line
You will probably have to play with the output
Rick
#!/bin/sh
FROM="233 S. Upper Wacker Dr, Chicago, IL"
TO="1060 W. Addison St, Chicago, IL"
wget -O - "http://maps.google.com/maps?q=$FROM to $TO&output=js" \
2&>/dev/null >google_map.js
gpsbabel -i google -f google_map.js -o gpx -F google_map.gpx
You will probably have to play with the output
Rick
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2007-08-22
, 17:32
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Posts: 1,245 |
Thanked: 421 times |
Joined on Dec 2005
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#3
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Sorry, but the code is unavailable for public release at the moment. In the future, the script may be based on gpsbabel, after which point I can release the code. In that case, though, I'll probably also incorporate gpsbabel support into Maemo Mapper itself.
By the way: thanks for the notice. I have since fixed the script.
Oh, and to rcull: actually, I think it is -ohhh, not -zero. "O" stands for "output", and "-" indicates stdout.
By the way: thanks for the notice. I have since fixed the script.
Oh, and to rcull: actually, I think it is -ohhh, not -zero. "O" stands for "output", and "-" indicates stdout.
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2007-08-23
, 05:51
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Posts: 299 |
Thanked: 168 times |
Joined on Jun 2006
@ Wales UK
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#4
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You know I only open my mouth to change feet. 
( shouldnt do these things from memory)
Gnuite
If you are including gpsbabel in MM is there any point in my continuing with Poi_Loader.
Rick
( shouldnt do these things from memory)Gnuite
If you are including gpsbabel in MM is there any point in my continuing with Poi_Loader.
Rick
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2007-08-23
, 14:22
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Posts: 2 |
Thanked: 0 times |
Joined on Aug 2007
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#5
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Originally Posted by rcull
Does it actually work anymore? From what I understand output=js used to include a xml document embedded in javascript. When I look at the output, I don't see anything that looks like a xml document. Furthermore, my gpsbabel output is empty save the parent tags that gpsbabel creates.
Straight from the gpsbabel docs
Thats -zero not -ohhh in the wget line
You will probably have to play with the output
Rick
Gnuite: Thanks for the quick fix. Shame it's not public though. Perhaps you can explain how it works. I've tried to find a correlation between your script and say the kml output and it doesn't seem similar. For instance, your output has far more trackpoints. Do you just divide two points by a certain distance and include them for more accurate tracking?
Last edited by dracae; 2007-08-23 at 14:28.
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2007-08-23
, 16:31
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Posts: 14 |
Thanked: 2 times |
Joined on Aug 2007
@ Virginia
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#6
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I believe the info from gpsbabel is out-of-date.
Google maps *used* to output in XML. Now, to get XML output, I believe you need a to go through the API, and you need a key. Even then, according to TOS,
That being said, it is possible to grab the output from google maps, and it is in JSON. Then it is possible to parse it and create valid gpx output. There is a 'bookmarklet' here: gmaptogpx that parses the output into valid gpx.
The JS code used to parse the gmaps output is here
So, if one was enterprising, it would be possible to create a cgi script that takes a start and a destination, grab the js output from google maps, run it through the JS linked to above, and return gpx results.
As a disclaimer to all this, I just got a BT GPS receiver a week ago, and just started playing with maemo-mapper. I have not spent much time looking into all this....I may be completely wrong :-)
Google maps *used* to output in XML. Now, to get XML output, I believe you need a to go through the API, and you need a key. Even then, according to TOS,
The API is limited to allowing You to display map images only, and does not provide You with the ability to access the underlying map data, any services provided by Google in connection with its maps service (such as local search or directions), or any other Google service.
The JS code used to parse the gmaps output is here
So, if one was enterprising, it would be possible to create a cgi script that takes a start and a destination, grab the js output from google maps, run it through the JS linked to above, and return gpx results.
As a disclaimer to all this, I just got a BT GPS receiver a week ago, and just started playing with maemo-mapper. I have not spent much time looking into all this....I may be completely wrong :-)
| The Following User Says Thank You to thel8elvis For This Useful Post: | ||
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2007-08-23
, 20:44
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Posts: 1,245 |
Thanked: 421 times |
Joined on Dec 2005
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#7
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Originally Posted by dracae
Think of it this way: Google Maps's UI shows more than just waypoint locations. It also shows the actual path that you take to get from one waypoint to another (following the road). The GPX Driving Directions web service is able to extract both waypoint locations and path information (known by GPX as a "track") and return a GPX document based on that.
Perhaps you can explain how it works. I've tried to find a correlation between your script and say the kml output and it doesn't seem similar. For instance, your output has far more trackpoints. Do you just divide two points by a certain distance and include them for more accurate tracking?
That's why Maemo Mapper's GPX format uses the "trk" element instead of the "wpt" element - it stores (by GPX's definition) a track, not just a set of waypoints. Conceivably, Maemo Mapper could store both trk and wpt elements, but unfortunately, there isn't an easy way (in GPX) to tie a wpt element to a specific trk element (unless I'm missing something). So I just store waypoint information directly in the trk data. Not ideal, I know, and maybe someday I'll find a way to make it better.
http://gnuite.com:8080/cgi-bin/gpx.cgi/directions.gpx does not parse the description properly. Does anyone have this script, I would prefer to host it locally and be able to fix issues like this quickly. Is there a reason it isn't readily avaible?