QtQuick.PathInterpolator

Specifies how to manually animate along a path More...

Properties

• angle : real
• path : Path
• progress : real
• x : real
• y : real

Detailed Description

PathInterpolator provides x, y, and angle information for a particular progress along a path.

In the following example, we animate a green rectangle along a bezier path.

import QtQuick 2.0
Rectangle {
width: 400
height: 400
PathInterpolator {
id: motionPath
path: Path {
startX: 0; startY: 0
PathCubic {
x: 350; y: 350
control1X: 350; control1Y: 0
control2X: 0; control2Y: 350
}
}
NumberAnimation on progress { from: 0; to: 1; duration: 2000 }
}
Rectangle {
width: 50; height: 50
color: "green"
//bind our attributes to follow the path as progress changes
x: motionPath.x
y: motionPath.y
rotation: motionPath.angle
}
}

Property Documentation

This property holds the angle of the path tangent at progress.

Angles are reported clockwise, with zero degrees at the 3 o'clock position.

This property holds the path to interpolate.

For more information on defining a path see the Path documentation.

This property holds the current progress along the path.

Typical usage of PathInterpolator is to set the progress (often via a NumberAnimation), and read the corresponding values for x, y, and angle (often via bindings to these values).

Progress ranges from 0.0 to 1.0.

These properties hold the position of the path at progress.

These properties hold the position of the path at progress.