Qt Location send signal when a defined line is crossed



  • Hi

    I am trying to make a QML based Race track Lap timer via GPS.
    I want to let the user define a line from coordinate A to coordinate B ( the start / finish line ) ,and send a signal when the line is crossed . Unfortunately i can't find a way of doing this .
    I made a quick illustration . The red line would be the defined by the user bewteen coordinate A and B . the Blue Dot is the Cars location .
    0_1524726891956_racetrack.png

    Could someone point me in the right direction ?


  • Lifetime Qt Champion

    Hi,

    I haven't used it yet but QGeoAreaMonitorSource might be what you are looking for.

    Hope it helps


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