Specifies how to manually animate along a path. More...
| Import Statement: | import QtQuick |
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 } }
These properties hold the position of the path at progress.
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[read-only] angle : real |
This property holds the angle of the path tangent at progress.
Angles are reported clockwise, with zero degrees at the 3 o'clock position.
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path : Path |
This property holds the path to interpolate.
For more information on defining a path see the Path documentation.
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progress : real |
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.
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