OffscreenCanvasRenderingContext2D 类
- 注释
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- @Native("OffscreenCanvasRenderingContext2D")
方法
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arc(num x, num y, num radius, num startAngle, num endAngle, bool? anticlockwise) → void
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arcTo(num x1, num y1, num x2, num y2, num radius) → void
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beginPath() → void
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bezierCurveTo(num cp1x, num cp1y, num cp2x, num cp2y, num x, num y) → void
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clearRect(num x, num y, num width, num height) → void
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clip([Path2D? path]) → void
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closePath() → void
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commit() → Future
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createImageData(动态 data_OR_imagedata_OR_sw, [整数? sh_OR_sw, 动态 imageDataColorSettings_OR_sh, Map? imageDataColorSettings]) → ImageData
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createLinearGradient(数字 x0, 数字 y0, 数字 x1, 数字 y1) → CanvasGradient
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createPattern(动态 image, 字符串 repetitionType) → CanvasPattern?
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createRadialGradient(数字 x0, 数字 y0, 数字 r0, 数字 x1, 数字 y1, 数字 r1) → CanvasGradient
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drawImage(dynamic image, num sx_OR_x, num sy_OR_y, [num? sw_OR_width, num? height_OR_sh, num? dx, num? dy, num? dw, num? dh]) → void
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ellipse(num x, num y, num radiusX, num radiusY, num rotation, num startAngle, num endAngle, bool? anticlockwise) → void
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fill([dynamic path_OR_winding, String? winding]) → void
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fillRect(num x, num y, num width, num height) → void
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fillText(String text, num x, num y, [num? maxWidth]) → void
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getImageData(int sx, int sy, int sw, int sh) → ImageData
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getLineDash() → List<num>
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isPointInPath(dynamic path_OR_x, num x_OR_y, [dynamic winding_OR_y, String? winding]) → bool
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isPointInStroke(dynamic path_OR_x, num x_OR_y, [num? y]) → bool
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lineTo(num x, num y) → void
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measureText(String text) → TextMetrics
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moveTo(num x, num y) → void
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noSuchMethod(Invocation invocation) → dynamic
- 访问不存在的属性或方法时触发。
继承
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putImageData(ImageData imagedata, int dx, int dy, [int? dirtyX, int? dirtyY, int? dirtyWidth, int? dirtyHeight]) → void
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quadraticCurveTo(num cpx, num cpy, num x, num y) → void
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rect(num x, num y, num width, num height) → void
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resetTransform() → void
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restore() → void
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rotate(num angle) → void
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save() → void
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scale(num x, num y) → void
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setLineDash(List<num> dash) → void
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setTransform(num a, num b, num c, num d, num e, num f) → void
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stroke([Path2D? path]) → void
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strokeRect(num x, num y, num width, num height) → void
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strokeText(String text, num x, num y, [num? maxWidth]) → void
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toString() → String
- 此对象的字符串表示形式。
继承
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transform(num a, num b, num c, num d, num e, num f) → void
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translate(num x, num y) → void
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