mapping dynamic points on a map

koahnig

This is for an application running on an Android smartphone. The app shall show dynamically different points which are updated every epoch. The tables and coordinates are updated through the c++ part of the application. QML is just used for display.

By assigning different points manually here in the example for 5 points, I got to work. However, the list is basically dynamic and it should look a bit better.

Page {
    id: pageSnr
    property Map map

        Plugin {
            id: mapPlugin
            name: "osm" // "mapboxgl", "esri", ...
        }

        PositionSource {
            id: snrSource
            property variant solution0: satelliteModel.CoordList[0]
            property variant solution1: satelliteModel.CoordList[1]
            property variant solution2: satelliteModel.CoordList[2]
            property variant solution3: satelliteModel.CoordList[3]
            property variant solution4: satelliteModel.CoordList[4]

            active: true
            updateInterval: 2000 // 2 mins
            onPositionChanged:  {
                var currentPosition = snrSource.position.coordinate
                myMap.center = currentPosition
                solution0 = satelliteModel.CoordList[0]
                solution1 = satelliteModel.CoordList[1]
                solution2 = satelliteModel.CoordList[2]
                solution3 = satelliteModel.CoordList[3]
                solution4 = satelliteModel.CoordList[4]

                var distance = currentPosition.distanceTo(lastSearchPosition)
                if (distance > 500) {
                    // 500m from last performed pizza search
                    lastSearchPosition = currentPosition
                    searchModel.searchArea = QtPositioning.circle(currentPosition)
                    searchModel.update()
                }
            }
        }

        Map {
            id: myMap
            anchors.fill: parent
            anchors.bottomMargin: 150
            plugin: mapPlugin
            center: currentPosition
            zoomLevel: 20
            MapCircle {
                center: snrSource.solution1
                color: "black"
                radius: 20
                opacity: 1
            }
            ListView {
                model: mySolutions

                delegate: MapCircle {
                    center: model.locationCoord
                    color: "red"
                    radius: 20
                    opacity: 1
                }
            }
        }
}

I have tried to use a list which is already in place for creation of a table. The list of objects is accessed through "mySolutions". One of the access points is "locationCoord". The routine of C++ is accessed every epoch while processing. However, the map circles are not shown through ListView while the crude way with QList of QGeoCoordinates is working in the example given.

Any suggestion how to get this to work?

koahnig

Found in the mean time MapObjectView. Looks promising but does not work yet either.

koahnig

Finally found MapItemView which does what I am searching for.