Module javafx.graphics
Package javafx.animation

## Class PathTransition

- java.lang.Object
- - javafx.animation.Animation
  - - javafx.animation.Transition
    - - javafx.animation.PathTransition

-     public final class PathTransition
      extends Transition

  This `Transition` creates a path animation that spans its `duration`. The translation along the path is done by updating the `translateX` and `translateY` variables of the `node`, and the `rotate` variable will get updated if `orientation` is set to `OrientationType.ORTHOGONAL_TO_TANGENT`, at regular interval.

  The animated path is defined by the outline of a shape.

  Code Segment Example:

       import javafx.scene.shape.*;
       import javafx.animation.*;

       ...

           Rectangle rect = new Rectangle (100, 40, 100, 100);
           rect.setArcHeight(50);
           rect.setArcWidth(50);
           rect.setFill(Color.VIOLET);

           Path path = new Path();
           path.getElements().add (new MoveTo (0f, 50f));
           path.getElements().add (new CubicCurveTo (40f, 10f, 390f, 240f, 1904, 50f));

           pathTransition.setDuration(Duration.millis(10000));
           pathTransition.setNode(rect);
           pathTransition.setPath(path);
           pathTransition.setOrientation(OrientationType.ORTHOGONAL_TO_TANGENT);
           pathTransition.setCycleCount(4f);
           pathTransition.setAutoReverse(true);

           pathTransition.play();

       ...

  Since:
    JavaFX 2.0
  See Also:
    `Transition`, `Animation`

- - ### Property Summary

    Properties
    Type | Property | Description
    --- | --- | ---
    `ObjectProperty<Duration>` | `duration` | The duration of this `Transition`.
    `ObjectProperty<Node>` | `node` | The target node of this `PathTransition`.
    `ObjectProperty<PathTransition.OrientationType>` | `orientation` | Specifies the upright orientation of `node` along the `path`.
    `ObjectProperty<Shape>` | `path` | The shape on which outline the node should be animated.

    - ### Properties inherited from class javafx.animation.Transition

      `interpolator`

    - ### Properties inherited from class javafx.animation.Animation

      `autoReverse, currentRate, currentTime, cycleCount, cycleDuration, delay, onFinished, rate, status, totalDuration`

  - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class | Description
    --- | --- | ---
    `static class` | `PathTransition.OrientationType` | Specifies the upright orientation of `node` along the `path`.

    - ### Nested classes/interfaces inherited from class javafx.animation.Animation

      `Animation.Status`

  - ### Field Summary

    - ### Fields inherited from class javafx.animation.Animation

      `INDEFINITE`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `PathTransition()` | The constructor of `PathTransition`.
    `PathTransition​(Duration duration, Shape path)` | The constructor of `PathTransition`.
    `PathTransition​(Duration duration, Shape path, Node node)` | The constructor of `PathTransition`.

  - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `ObjectProperty<Duration>` | `durationProperty()` | The duration of this `Transition`.
    `Duration` | `getDuration()` | Gets the value of the property duration.
    `Node` | `getNode()` | Gets the value of the property node.
    `PathTransition.OrientationType` | `getOrientation()` | Gets the value of the property orientation.
    `Shape` | `getPath()` | Gets the value of the property path.
    `void` | `interpolate​(double frac)` | The method `interpolate()` has to be provided by implementations of `Transition`.
    `ObjectProperty<Node>` | `nodeProperty()` | The target node of this `PathTransition`.
    `ObjectProperty<PathTransition.OrientationType>` | `orientationProperty()` | Specifies the upright orientation of `node` along the `path`.
    `ObjectProperty<Shape>` | `pathProperty()` | The shape on which outline the node should be animated.
    `void` | `setDuration​(Duration value)` | Sets the value of the property duration.
    `void` | `setNode​(Node value)` | Sets the value of the property node.
    `void` | `setOrientation​(PathTransition.OrientationType value)` | Sets the value of the property orientation.
    `void` | `setPath​(Shape value)` | Sets the value of the property path.

    - ### Methods inherited from class javafx.animation.Transition

      `getCachedInterpolator, getInterpolator, getParentTargetNode, interpolatorProperty, setInterpolator`

    - ### Methods inherited from class javafx.animation.Animation

      `autoReverseProperty, currentRateProperty, currentTimeProperty, cycleCountProperty, cycleDurationProperty, delayProperty, getCuePoints, getCurrentRate, getCurrentTime, getCycleCount, getCycleDuration, getDelay, getOnFinished, getRate, getStatus, getTargetFramerate, getTotalDuration, isAutoReverse, jumpTo, jumpTo, onFinishedProperty, pause, play, playFrom, playFrom, playFromStart, rateProperty, setAutoReverse, setCycleCount, setCycleDuration, setDelay, setOnFinished, setRate, setStatus, statusProperty, stop, totalDurationProperty`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Property Detail

    - #### node

          public final ObjectProperty<Node> nodeProperty

      The target node of this `PathTransition`.

      It is not possible to change the target `node` of a running `PathTransition`. If the value of `node` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      See Also:
        `getNode()`, `setNode(Node)`

    - #### duration

          public final ObjectProperty<Duration> durationProperty

      The duration of this `Transition`.

      It is not possible to change the `duration` of a running `PathTransition`. If the value of `duration` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Note: While the unit of `duration` is a millisecond, the granularity depends on the underlying operating system and will in general be larger. For example animations on desktop systems usually run with a maximum of 60fps which gives a granularity of ~17 ms. Setting duration to value lower than `Duration.ZERO` will result in `IllegalArgumentException`.

      Default value:
        400ms
      See Also:
        `getDuration()`, `setDuration(Duration)`

    - #### path

          public final ObjectProperty<Shape> pathProperty

      The shape on which outline the node should be animated.

      It is not possible to change the `path` of a running `PathTransition`. If the value of `path` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        null
      See Also:
        `getPath()`, `setPath(Shape)`

    - #### orientation

          public final ObjectProperty<PathTransition.OrientationType> orientationProperty

      Specifies the upright orientation of `node` along the `path`. The default orientation is set to `PathTransition.OrientationType.NONE`.

      It is not possible to change the `orientation` of a running `PathTransition`. If the value of `orientation` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        NONE
      See Also:
        `getOrientation()`, `setOrientation(PathTransition.OrientationType)`

  - ### Constructor Detail

    - #### PathTransition

          public PathTransition​(Duration duration,
                                Shape path,
                                Node node)

      The constructor of `PathTransition`.
      Parameters:
        `duration` - The `duration` of this `PathTransition`
        `path` - The `path` of this `PathTransition`
        `node` - The `node` of this `PathTransition`

    - #### PathTransition

          public PathTransition​(Duration duration,
                                Shape path)

      The constructor of `PathTransition`.
      Parameters:
        `duration` - The `duration` of this `PathTransition`
        `path` - The `path` of this `PathTransition`

    - #### PathTransition

          public PathTransition()

      The constructor of `PathTransition`.

  - ### Method Detail

    - #### setNode

          public final void setNode​(Node value)

      Sets the value of the property node.
      Property description:
        The target node of this `PathTransition`.

        It is not possible to change the target `node` of a running `PathTransition`. If the value of `node` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

    - #### getNode

          public final Node getNode()

      Gets the value of the property node.
      Property description:
        The target node of this `PathTransition`.

        It is not possible to change the target `node` of a running `PathTransition`. If the value of `node` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

    - #### nodeProperty

          public final ObjectProperty<Node> nodeProperty()

      The target node of this `PathTransition`.

      It is not possible to change the target `node` of a running `PathTransition`. If the value of `node` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      See Also:
        `getNode()`, `setNode(Node)`

    - #### setDuration

          public final void setDuration​(Duration value)

      Sets the value of the property duration.
      Property description:
        The duration of this `Transition`.

        It is not possible to change the `duration` of a running `PathTransition`. If the value of `duration` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

        Note: While the unit of `duration` is a millisecond, the granularity depends on the underlying operating system and will in general be larger. For example animations on desktop systems usually run with a maximum of 60fps which gives a granularity of ~17 ms. Setting duration to value lower than `Duration.ZERO` will result in `IllegalArgumentException`.

      Default value:
        400ms

    - #### getDuration

          public final Duration getDuration()

      Gets the value of the property duration.
      Property description:
        The duration of this `Transition`.

        It is not possible to change the `duration` of a running `PathTransition`. If the value of `duration` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

        Note: While the unit of `duration` is a millisecond, the granularity depends on the underlying operating system and will in general be larger. For example animations on desktop systems usually run with a maximum of 60fps which gives a granularity of ~17 ms. Setting duration to value lower than `Duration.ZERO` will result in `IllegalArgumentException`.

      Default value:
        400ms

    - #### durationProperty

          public final ObjectProperty<Duration> durationProperty()

      The duration of this `Transition`.

      It is not possible to change the `duration` of a running `PathTransition`. If the value of `duration` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Note: While the unit of `duration` is a millisecond, the granularity depends on the underlying operating system and will in general be larger. For example animations on desktop systems usually run with a maximum of 60fps which gives a granularity of ~17 ms. Setting duration to value lower than `Duration.ZERO` will result in `IllegalArgumentException`.

      Default value:
        400ms
      See Also:
        `getDuration()`, `setDuration(Duration)`

    - #### setPath

          public final void setPath​(Shape value)

      Sets the value of the property path.
      Property description:
        The shape on which outline the node should be animated.

        It is not possible to change the `path` of a running `PathTransition`. If the value of `path` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        null

    - #### getPath

          public final Shape getPath()

      Gets the value of the property path.
      Property description:
        The shape on which outline the node should be animated.

        It is not possible to change the `path` of a running `PathTransition`. If the value of `path` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        null

    - #### pathProperty

          public final ObjectProperty<Shape> pathProperty()

      The shape on which outline the node should be animated.

      It is not possible to change the `path` of a running `PathTransition`. If the value of `path` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        null
      See Also:
        `getPath()`, `setPath(Shape)`

    - #### setOrientation

          public final void setOrientation​(PathTransition.OrientationType value)

      Sets the value of the property orientation.
      Property description:
        Specifies the upright orientation of `node` along the `path`. The default orientation is set to `PathTransition.OrientationType.NONE`.

        It is not possible to change the `orientation` of a running `PathTransition`. If the value of `orientation` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        NONE

    - #### getOrientation

          public final PathTransition.OrientationType getOrientation()

      Gets the value of the property orientation.
      Property description:
        Specifies the upright orientation of `node` along the `path`. The default orientation is set to `PathTransition.OrientationType.NONE`.

        It is not possible to change the `orientation` of a running `PathTransition`. If the value of `orientation` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        NONE

    - #### orientationProperty

          public final ObjectProperty<PathTransition.OrientationType> orientationProperty()

      Specifies the upright orientation of `node` along the `path`. The default orientation is set to `PathTransition.OrientationType.NONE`.

      It is not possible to change the `orientation` of a running `PathTransition`. If the value of `orientation` is changed for a running `PathTransition`, the animation has to be stopped and started again to pick up the new value.

      Default value:
        NONE
      See Also:
        `getOrientation()`, `setOrientation(PathTransition.OrientationType)`

    - #### interpolate

          public void interpolate​(double frac)

      The method `interpolate()` has to be provided by implementations of `Transition`. While a `Transition` is running, this method is called in every frame. The parameter defines the current position with the animation. At the start, the fraction will be `0.0` and at the end it will be `1.0`. How the parameter increases, depends on the `interpolator`, e.g. if the `interpolator` is `Interpolator.LINEAR`, the fraction will increase linear. This method must not be called by the user directly.
      Specified by:
        `interpolate` in class `Transition`
      Parameters:
        `frac` - The relative position