HarmonyOS/OpenHarmony application development - ArkTS canvas component CanvasRenderingContext2D object (12)

beginPath
beginPath(): void
creates a new drawing path.
Example:

.// xxx.ets
.@Entry
.@Component
.struct BeginPath {
.  private settings: RenderingContextSettings = new RenderingContextSettings(true)
.  private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
.
.  build() {
.    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
.      Canvas(this.context)
.        .width('100%')
.        .height('100%')
.        .backgroundColor('#ffff00')
.        .onReady(() =>{
.          this.context.beginPath()
.          this.context.lineWidth = 6
.          this.context.strokeStyle = '#0000ff'
.          this.context.moveTo(15, 80)
.          this.context.lineTo(280, 160)
.          this.context.stroke()
.        })
.    }
.    .width('100%')
.    .height('100%')
.  }
.}


moveTo
moveTo(x: number, y: number): The void
path moves from the current point to the specified point.
Parameters:

Example:

.// xxx.ets
.@Entry
.@Component
.struct MoveTo {
.  private settings: RenderingContextSettings = new RenderingContextSettings(true)
.  private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
.
.  build() {
.    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
.      Canvas(this.context)
.        .width('100%')
.        .height('100%')
.        .backgroundColor('#ffff00')
.        .onReady(() =>{
.          this.context.beginPath()
.          this.context.moveTo(10, 10)
.          this.context.lineTo(280, 160)
.          this.context.stroke()
.        })
.    }
.    .width('100%')
.    .height('100%')
.  }
.}

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Origin blog.csdn.net/weixin_69135651/article/details/130134917