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library or algorithm for geodetic calculations

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  • M Offline
    M Offline
    Marek
    wrote on last edited by
    #1

    Hi,
    I'm working on car navigation application. In order to determine on which route segment car is currently I need to now point on path closest to my GPS coordinates, something like:
    https://developers.arcgis.com/qt/latest/qml/api-reference/qml-esri-arcgisruntime-geometryengine.html#nearestCoordinate-method

    I have based my app on this example
    https://github.com/tmpsantos/qmapboxglapp/tree/tmpsantos-cheapruler

    In Qt there is Coordinate::distanceTo() method but I need point on path closest to my current coordinates.
    Does anyone knows some algorithm or third part library to use for that?

    Best Regards,
    Marek

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