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HarmonyOS/OpenHarmony应用开发-ArkTS画布组件(十二)
鸿蒙时代
发布于 2023-4-13 16:56
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beginPath
beginPath(): void
创建一个新的绘制路径。
示例:
.// 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): void
路径从当前点移动到指定点。
参数:
示例:
.// 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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HarmonyOSOpenHarmony应用开发-ArkTS画布组.docx 30.19K 4次下载
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