当前位置: 首页>>代码示例>>TypeScript>>正文


TypeScript CanvasContext.beginPath方法代码示例

本文整理汇总了TypeScript中tabris.CanvasContext.beginPath方法的典型用法代码示例。如果您正苦于以下问题:TypeScript CanvasContext.beginPath方法的具体用法?TypeScript CanvasContext.beginPath怎么用?TypeScript CanvasContext.beginPath使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在tabris.CanvasContext的用法示例。


在下文中一共展示了CanvasContext.beginPath方法的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的TypeScript代码示例。

示例1: drawHermiteInterpolation

 private drawHermiteInterpolation(ctx: CanvasContext, points: Point[]) {
   ctx.strokeStyle = graphLineColor;
   ctx.lineWidth = graphLineWidth;
   for (let i = 0; i < points.length - 1; i++) {
     ctx.beginPath();
     let [b0, b3] = [points[i], points[i + 1]];
     let h = (b3.x - b0.x) / 3;
     let b1 = { x: b0.x + h, y: b0.y + (h * b0.dydx) };
     let b2 = { x: b3.x - h, y: b3.y - (h * b3.dydx) };
     ctx.moveTo(this.getX(b0.x), this.getY(b0.y));
     ctx.bezierCurveTo(
       this.getX(b1.x), this.getY(b1.y),
       this.getX(b2.x), this.getY(b2.y),
       this.getX(b3.x), this.getY(b3.y)
     );
     ctx.stroke();
   }
 }
开发者ID:Homoola,项目名称:tabris-js,代码行数:18,代码来源:weatherGraph.ts

示例2: drawTemperatureScale

 private drawTemperatureScale(ctx: CanvasContext) {
   let degreeHeight = this.getY(this.scale.minY) - this.getY(this.scale.minY + 1);
   let degreeStep = (degreeHeight > minVerticalDistance) ? 1 : (2 * degreeHeight > minVerticalDistance) ? 2 : 5;
   let minHeight = Math.ceil(this.scale.minY / degreeStep) * degreeStep;
   ctx.strokeStyle = uiLineColor;
   ctx.lineWidth = uiLineWidth;
   for (let height = minHeight; height < this.scale.maxY; height += degreeStep) {
     // horizontal line
     ctx.beginPath();
     ctx.moveTo(this.getX(this.scale.minX), this.getY(height));
     ctx.lineTo(this.getX(this.scale.maxX), this.getY(height));
     ctx.stroke();
     // text label
     ctx.fillStyle = uiTextColor;
     ctx.font = uiFont;
     ctx.textAlign = "right";
     ctx.textBaseline = "middle";
     ctx.fillText(height + "°C", this.getX(this.scale.minX) - 2, this.getY(height));
   }
 }
开发者ID:Homoola,项目名称:tabris-js,代码行数:20,代码来源:weatherGraph.ts

示例3: drawVerticalLine

 private drawVerticalLine(ctx: CanvasContext, time: number, extraLength: number) {
   ctx.beginPath();
   ctx.moveTo(this.getX(time), this.getY(this.scale.minY));
   ctx.lineTo(this.getX(time), this.getY(this.scale.maxY) - extraLength);
   ctx.stroke();
 }
开发者ID:Homoola,项目名称:tabris-js,代码行数:6,代码来源:weatherGraph.ts

示例4:

ctx.lineCap = lineCap;
ctx.lineJoin = lineJoin;
ctx.lineWidth = lineWidth;
ctx.strokeStyle = strokeStyle;
ctx.textAlign = textAlign;
ctx.textBaseline = textBaseline;

// Methods
let num: number = 42;
let bool: boolean = false;
let voidReturnValue: void;
let imageData: ImageData;
let text: string = '';

voidReturnValue = ctx.arc(num, num, num, num, num, bool);
voidReturnValue = ctx.beginPath();
voidReturnValue = ctx.bezierCurveTo(num, num, num, num, num, num);
voidReturnValue = ctx.clearRect(num, num, num, num);
voidReturnValue = ctx.closePath();
imageData = ctx.createImageData(num, num);
imageData = ctx.createImageData(imageData);
voidReturnValue = ctx.fill();
voidReturnValue = ctx.fillRect(num, num, num, num);
voidReturnValue = ctx.fillText(text, num, num);
imageData = ctx.getImageData(num, num, num, num);
voidReturnValue = ctx.lineTo(num, num);
voidReturnValue = ctx.moveTo(num, num);
voidReturnValue = ctx.putImageData(imageData, num, num);
voidReturnValue = ctx.quadraticCurveTo(num, num, num, num);
voidReturnValue = ctx.rect(num, num, num, num);
voidReturnValue = ctx.restore();
开发者ID:eclipsesource,项目名称:tabris-js,代码行数:31,代码来源:CanvasContext.test.ts


注:本文中的tabris.CanvasContext.beginPath方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。