1# Motion Path Animation (motionPath) 2 3The motion path animation is used to animate a component along a custom path. 4 5> **NOTE** 6> 7> The APIs of this module are supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version. 8 9## motionPath 10motionPath(value: MotionPathOptions) 11 12**Atomic service API**: This API can be used in atomic services since API version 11. 13 14**Parameters** 15 16| Name | Type | Mandatory| Description | 17| ----- | --------------------------------- | ---- | ------------------------------------- | 18| value | [MotionPathOptions](#motionpathoptions) | Yes | Motion path of the component. | 19 20## MotionPathOptions 21 22**Atomic service API**: This API can be used in atomic services since API version 11. 23 24| Name| Type| Mandatory| Description| 25| -------- | -------- | ---- | -------- | 26| path | string | Yes | Motion path of the translation animation. The **svg** path string is used. In the value, **start** and **end** can be used in place of the start point and end point, for example, **'Mstart.x start.y L50 50 Lend.x end.y Z'**. For details, see [Path Drawing](../../../ui/ui-js-components-svg-path.md).<br>If this parameter is set to an empty string, the path animation is not set. | 27| from | number | No | Start point of the motion path.<br>Default value: **0.0**<br>Value range: [0, 1]<br>A value less than 0 or greater than 1 evaluates to the default value **0**. | 28| to | number | No | End point of the motion path.<br>Default value: **1.0**<br>Value range: [0, 1]<br>A value less than 0 or greater than 1 evaluates to the default value **1**, provided that the value of **to** is greater than or equal to the value of **from**. | 29| rotatable | boolean | No | Whether to rotate along the path.<br>Default value: **false** | 30 31 32## Example 33 34This example demonstrates how to animate a component along a custom path. 35 36```ts 37// xxx.ets 38@Entry 39@Component 40struct MotionPathExample { 41 @State toggle: boolean = true 42 43 build() { 44 Column() { 45 Button('click me').margin(50) 46 .motionPath({ 47 path: 'Mstart.x start.y L300 200 L300 500 Lend.x end.y', 48 from: 0.0, 49 to: 1.0, 50 rotatable: true 51 }) // Execute the animation: Move from the start point to (300,200), then to (300,500), and finally to the end point. 52 .onClick(() => { 53 animateTo({ duration: 4000, curve: Curve.Linear }, () => { 54 this.toggle =! this.toggle // Use this.toggle to change the position of the component. 55 }) 56 }) 57 }.width('100%').height('100%').alignItems(this.toggle ? HorizontalAlign.Start : HorizontalAlign.Center) 58 } 59} 60``` 61 62 63
