Problem with Map and MapPolygon



  • Hi,
    I have some problems with the QML Map. I want to display specific areas like airspaces. I figured out, that the MapPolygon, which was created for testing, is doing strange things (vertical cuts, disappearing), if I zoom in until its borders are no more part of the visible area of the map. I'm using v5.5.1 but could also reproduce it with v5.6. How can I avoid this?

    Pictures

    Codesnipped:

    import QtQuick 2.0
    import QtLocation 5.5
    
    Item {
        height: 600
        width: 800
        anchors.centerIn: parent
    
        Plugin{
            id: osmplugin
            name:"osm"
        }
    
        Map {
            width: parent.width
            height: parent.height
            plugin: osmplugin
            gesture.enabled: true
            id: map
            zoomLevel: (maximumZoomLevel - minimumZoomLevel)/2
    
            center {
                latitude: 50.348888888888894
                longitude: 10.918055555555554
            }
    
            MapPolygon {
                color: "#550000FF"
                
                //Coburg - Germany
                path : [
                    { longitude: 10.918055555555554, latitude: 50.348888888888894 },
                    { longitude: 11.150833333333333, latitude: 50.2625 },
                    { longitude: 11.073333333333332, latitude: 50.17611111111111 },
                    { longitude: 10.840833333333334, latitude: 50.26222222222222 },
                    { longitude: 10.918055555555554, latitude: 50.348888888888894 }
                ]
            }
        }
    }
    
    

  • Moderators

    Hi, and welcome to the Qt forum!

    I can confirm this behaviour with Qt 5.6.0 on x86_64 Linux with Nvidia graphics drivers. What is your platform?



  • @Wieland Thank you :) I've tested it on Windows 7 x86 64. Tomorrow I will check this on armhf with mali, but I'm not very optimistic :/ Any ideas, how to clean up the situation?


  • Moderators

    @Miime said:

    Any ideas, how to clean up the situation?

    No, sry. My hope was that we could blame the Nvidia drivers (again).


  • Moderators

    You can file a bugreport here: bugreports.qt.io



  • @Wieland
    Thank you for testing :)
    I've done a bugreport: https://bugreports.qt.io/browse/QTBUG-53046



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