angle精品文章

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  轉(zhuǎn)盤抽獎腳本自己擼

  ...tomOps = options; // 默認(rèn)參數(shù)配置 this._parameters = { angle: 0, // 元素初始角度設(shè)置 animateTo: 0, // 目標(biāo)角度 step: null, // 旋轉(zhuǎn)過程中 回調(diào)函數(shù) easing: function(t, b, c, d) { return ...

  趙春朋 2019-08-23 11:01 評論0 收藏0
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  游戲動畫必備干貨——跟動畫有關(guān)的數(shù)學(xué)和物理公式

  ... window.requestAnimationFrame(drawFrame,canvas); value=center+Math.sin(angle)+range; angle+=speed; }()); demo as public function onEnterFrame(event:Event){ value=center+Math.sin(angle)*...

  CNZPH 2019-08-21 10:24 評論0 收藏0
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  Canvas繪制動態(tài)進(jìn)度條圓環(huán)

  .../圓環(huán)厚度 let innerRadius = radius - thickness //內(nèi)環(huán)半徑 let startAngle = -90 //開始角度 let endAngle = 180 //結(jié)束角度 let x = 0 //圓心x坐標(biāo) let y = 0 //圓心y坐標(biāo) let canvas = document.getElementById(tutorial); canvas.wi...

  Wuv1Up 2019-08-02 15:37 評論0 收藏0
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  Canvas繪制動態(tài)進(jìn)度條圓環(huán)

  .../圓環(huán)厚度 let innerRadius = radius - thickness //內(nèi)環(huán)半徑 let startAngle = -90 //開始角度 let endAngle = 180 //結(jié)束角度 let x = 0 //圓心x坐標(biāo) let y = 0 //圓心y坐標(biāo) let canvas = document.getElementById(tutorial); canvas.wi...

  edagarli 2019-08-26 10:22 評論0 收藏0
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  Canvas繪制動態(tài)進(jìn)度條圓環(huán)

  .../圓環(huán)厚度 let innerRadius = radius - thickness //內(nèi)環(huán)半徑 let startAngle = -90 //開始角度 let endAngle = 180 //結(jié)束角度 let x = 0 //圓心x坐標(biāo) let y = 0 //圓心y坐標(biāo) let canvas = document.getElementById(tutorial); canvas.wi...

  quietin 2019-08-30 15:44 評論0 收藏0
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  計算一點(diǎn)繞另一點(diǎn)旋轉(zhuǎn)n度后的坐標(biāo)（親測）

  ...一、 假設(shè)o點(diǎn)為圓心(原點(diǎn)0,0)，則有計算公式： b.x = a.xcos(angle) - a.ysin(angle) b.y = a.xsin(angle) + a.ycos(angle) 其中順時針旋轉(zhuǎn)為正，逆時針旋轉(zhuǎn)為負(fù)，角度angle是弧度值，如旋轉(zhuǎn)30度轉(zhuǎn)換為弧度為：angle = pi/180 * 30。 二、 若o不是原點(diǎn)，...

  Doyle 2019-08-23 18:17 評論0 收藏0
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  《每周一點(diǎn)canvas動畫》——圓周運(yùn)動

  ...tContext(2d); var ball = new Ball(); var angle = 0, // 旋轉(zhuǎn)的角度 centerX = canvas.width/2, centerY = canvas.height/2, ...

  EscapedDog 2019-08-20 14:25 評論0 收藏0
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  Canvas呈現(xiàn)3D業(yè)務(wù)邏輯關(guān)系

  ...this, id); } twaver.Util.ext(CNode, twaver.Node, { _split:1/3, _cubeAngle:Math.PI/6, getVectorUIClass: function (){ return CNodeUI; }, setSplit:function(split){ this._split = spl...

  Alliot 2019-08-20 15:21 評論0 收藏0
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  繞圓弧動畫的向量解決方式

  ... var i = 0,count = 200; var PI = Math.PI; function animateAngle() { var angle = (angle1 * (count-i) + angle2 * (i)) / count; var x = cx + Math.cos(angle) * r, ...

  ybak 2019-08-23 18:11 評論0 收藏0
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  怎樣用JavaScript和HTML5 Canvas繪制圖表

  ...data[categ]; total_value += val; } var start_angle = 0; for (categ in this.options.data){ val = this.options.data[categ]; var slice_ang...

  doodlewind 2019-08-21 15:50 評論0 收藏0