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Need search suggestions for a java gps route onto a map desktop application

  • 03-02-2010 06:18PM
    #1
    silsean
    Closed Accounts Posts: 31 ✭


    Hey all,

    I hope i've got the right forum. I want to develop a desktop gps application where a user would align their gps route onto a scanned image of a map. I want to do it for the sport of orienteering specifically. I've being searching the net for information on how to develop this (in java) but i am having little or no luck in starting off. I'm really looking to know how to place gps tracks onto an image. It's being done before so i would imagine some google searches would produce information on this that i can learn from. I'm just looking for you boardsies to suggest search phrases for things i should read up on. I'm just hitting a wall here myself.

    Check this web app of what is similar to my idea - http://jatko.vpalvelin.com/~pekvari/java/index.php?javaid=24 . Press the play button at the top left of the window and increase the speed if you want. That is a web app for live tracking. The race was held last summer.
    Tagged:


Comments

  • #2
    croo
    Moderators, Technology & Internet Moderators Posts: 1,338 Mod ✭✭✭✭croo


    the open source hosting site sourceforge.net is always a good place to check for this type of thing you may find others trying to do something similar


  • #3
    Webmonkey
    Registered Users, Registered Users 2 Posts: 9,579 ✭✭✭Webmonkey


    It should be easy enough as long as you know the translation from lat and lon to x and y on the image. How big is the image. When it gets large, the curvature of the earth comes into play.

    Every time you receive a GPS update, add it to an array of an object like "Position" that contains x and y. Then every time you recieve one, use the drawing/painting facilities of Java to paint an overlay path using the coordinates as paths to each other. x1,y1 to x2 y2 where these are consecutive elements in the array.


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