[Moved] QML Map Centre

SimonJudge

I am using the QML Map (http://doc.qt.nokia.com/qtmobility/qml-map.html). When I change the map.center, the map doesn't move to the new coordinate. How can I force the map to redraw with the new coordinate?

Thanks

Simon

dalaing

Can you post some code which demonstrates the problem?

SimonJudge

I have an Item containing a Map. The item has its own property center. The map.center correctly gets initialised to Item.center. When I change the Item.center, the Item.onCenterChanged gets called correctly (as tested by console.log) but the Map center doesn't change (visually).

@Item {
id: mapControl
focus : true
width: parent.width
height: parent.height

property int zoomLevel: 16
property Coordinate center
property ListModel mapItems

Map {
    id: map
    plugin : Plugin {
        name : "nokia"
    }
    size.width: parent.width
    size.height: parent.height
    zoomLevel: mapControl.zoomLevel
    center: mapControl.center
}

onCenterChanged: {
    map.center = mapControl.center
    console.log("Map Centre changed")
}

}@

huluyige

Hi SimonJudge,
I've got the same problem, did you solve it?

[quote author="SimonJudge" date="1297246075"]I am using the QML Map (http://doc.qt.nokia.com/qtmobility/qml-map.html). When I change the map.center, the map doesn't move to the new coordinate. How can I force the map to redraw with the new coordinate?

Thanks

Simon[/quote]

cmer4

Hi,

you have to use ToCoordinate method to tell Map to center to new position.

But I also found it strange that if I state:
Text {
text: map.center.longitude
}

I will render coordinates for the center but console log will keep telling me about text loop detected...

huluyige

i got a workground, we can create an qml object on the fly:
@ function setPosition(lat, lon) {
var coord = Qt.createQmlObject('import QtMobility.location 1.1; Coordinate{latitude:' + lat + ';longitude:' + lon + ';}', container, "coord");
map.center = coord;
barLocation.coordinate=coord;
}@