I am working on a GSM based tracking device . i have successfully able to plot the approximate location on google maps using Gmap.net library for windows application and google maps api for android application.I want to mainly do the tracking of the Rail coach .with my current device i gets the approximate location near the railway track.I want to shift that Location /Maker on the near by Rail track.i need help and suggestions on how to achieve this task.please help.
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pranjal khanduri
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Sounds like a feature request: https://issuetracker.google.com/issues/35820156. – xomena Nov 01 '18 at 13:49
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Do you have the coordinates of the railway line? – geocodezip Nov 01 '18 at 18:50
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@geocodezip i have coordinates of all the stations on a railway line.secondly its a hectic job but i can manually take the coordinates from railway line on google maps. – pranjal khanduri Nov 02 '18 at 10:14
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Afaik the gmap.net library does not provide any feature around pinning tracking data, so I guess some manual work might be necessary.
The naive approach is to map your track on your own, google maps etc. is fine. I fact I've used gmap.net once itself to create exactly that.
Then all you need to do is some math (useful key word here is 'shortest path'), to locate the closest matching tracking point and use interpolation to distinguish your anticipated position on the track. You can also add some plausibility checks to speed up the whole process such as "knowing" where on your track you've already been.
I've got experience in real-time tracking for TV events and can go in deeper detail if you want.
rdoubleui
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