BARRA_VELOCIDADE.qml

import QtQuick 2.3
import QtGraphicalEffects 1.0

import QGroundControl 1.0
import QGroundControl.Controls 1.0
import QGroundControl.ScreenTools 1.0
import QGroundControl.Palette 1.0


Item {
    property real airspeed
    property real size
    property real factor: 649/6480

        property int aux: Math.round(airspeed)
        property int barrasdim: (aux-aux%10)/10+3

            id: papychulo
            height:size
            width: height/4

            Item {
                id: barraspeed
                anchors.fill:parent
                visible:false
                Column {

                    Repeater {
                        model:barrasdim
                        Image {
                            id:imagem
                            width:papychulo.width
                            height:papychulo.height/3
                            source:"/qmlimages/BARRA_2.svg"
                            mipmap:true
                            transform:Translate {y: -airspeed*height*factor+1.5*height}
                        }
                    }
                }
            }
            Rectangle {
                id:mascara
                anchors.fill:barraspeed
                color:"black"
                visible:true
                radius:width/4
            }

            OpacityMask {
                cached:true
                anchors.fill:barraspeed
                source: barraspeed
                maskSource: mascara
            }

        }