- Qt 5.3
- Qt Quick
- Qt Quick Particles Examples - Image Particles
- rotation.qml Example File
- Qt 5.3.2 Reference Documentation

# rotation.qml Example File

particles/imageparticle/content/rotation.qml

    /****************************************************************************
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    ** This file is part of the examples of the Qt Toolkit.
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    import QtQuick 2.0
    import QtQuick.Particles 2.0

    Rectangle {
        color: "goldenrod"
        width: 2000
        height: 2000
        ParticleSystem {id: sys}
        ImageParticle {
            id: up
            system: sys
            source: "../../images/starfish_2.png"
            autoRotation: true //leaving these two settings at default allows you to test going up performance levels
            rotation: -90
        }

        Emitter {
            anchors.centerIn: parent
            system: sys
            emitRate: 10
            size: 200
            lifeSpan: 10000
            velocity: AngleDirection {angleVariation: 360; magnitudeVariation: 100;}
        }

        MouseArea {
            anchors.fill: parent
            onClicked: {
                up.autoRotation = !up.autoRotation
                up.rotation = up.autoRotation ? -90 : 0
            }
        }
    }