Qt 4.8: QML ParticleMotionWander Element

Qt Reference Documentation

# QML ParticleMotionWander Element

The ParticleMotionWander object moves particles in a somewhat random fashion. More...

This element was introduced in Qt 4.7.

- List of all members, including inherited members

## Properties

- pace : real
- xvariance : real
- yvariance : real

## Detailed Description

The particles will continue roughly in the original direction, however will randomly drift to each side.

The code below produces an effect similar to falling snow.

     Rectangle {
         width: 240
         height: 320
         color: "black"

         Particles {
             y: 0
             width: parent.width
             height: 30
             source: "star.png"
             lifeSpan: 5000
             count: 50
             angle: 70
             angleDeviation: 36
             velocity: 30
             velocityDeviation: 10
             ParticleMotionWander {
                 xvariance: 30
                 pace: 100
             }
         }
     }

See also Particles.

## Property Documentation

pace : real

This property holds how quickly the paricles will move from side to side.

xvariance : real
yvariance : real

These properties set the amount to wander in the x and y directions.