Track GPS route in QML and remove previous marker

d4n1

Hi, I'm noob to QT/QML sorry if the question is too basic.

Right now I can represent the position on a map by getting the GPS coordinates. Once these coordinates are obtained, they are represented with a marker, but the previous one is not eliminated, rather they are accumulated. I think QT has some predefined way to do this but I haven't found it.

   function addMarker(lat, lng) {
        var markerItem= comp_Marker.createObject(window, {coordinate: QtPositioning.coordinate(lat, lng)})
        mapView.addMapItem(markerItem)
    }
.
.
.
Component {
        id: mapMarker
        MapQuickItem {
            id: marker_Imgae
            anchorPoint.x: image_marker.width/5
            anchorPoint.y: image_marker.height/2
            coordinate: position

            sourceItem: Image {
                id: image_marker
                source: "https://cdn4.iconfinder.com/data/icons/small-n-flat/24/map-marker-512.png"
            }
        }
    }

On the other hand, I am trying to trace the route that the GPS device is taking without success. I'm looking for information soure RouteMap and MapPolyline but I'm not sure if it's the right way.

https://doc.qt.io/qt-5/qml-qtlocation-maproute.html
https://doc.qt.io/qt-5/qml-qtlocation-mappolyline.html

Thank you!

d4n1

Hello, as a clarification in case you have any ideas, this is what I try to achieve:
https://www.youtube.com/watch?v=-OcEpGMBNzg