@cgj/k-view

<!doctype html> <html lang="en"> <head> <title>Code coverage report for src/utils/waveUtil.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../prettify.css" /> <link rel="stylesheet" href="../../base.css" /> <link rel="shortcut icon" type="image/x-icon" href="../../favicon.png" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1><a href="../../index.html">All files</a> / <a href="index.html">src/utils</a> waveUtil.js</h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 0% Statements 0/35 </div> <div class='fl pad1y space-right2'> 0% Branches 0/7 </div> <div class='fl pad1y space-right2'> 0% Functions 0/4 </div> <div class='fl pad1y space-right2'> 0% Lines 0/33 </div> </div> Press n or j to go to the next uncovered block, b, p or k for the previous block. </div> <div class='status-line low'></div> <pre><table class="coverage"> <tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a> <a name='L2'></a><a href='#L2'>2</a> <a name='L3'></a><a href='#L3'>3</a> <a name='L4'></a><a href='#L4'>4</a> <a name='L5'></a><a href='#L5'>5</a> <a name='L6'></a><a href='#L6'>6</a> <a name='L7'></a><a href='#L7'>7</a> <a name='L8'></a><a href='#L8'>8</a> <a name='L9'></a><a href='#L9'>9</a> <a name='L10'></a><a href='#L10'>10</a> <a name='L11'></a><a href='#L11'>11</a> <a name='L12'></a><a href='#L12'>12</a> <a name='L13'></a><a href='#L13'>13</a> <a name='L14'></a><a href='#L14'>14</a> <a name='L15'></a><a href='#L15'>15</a> <a name='L16'></a><a href='#L16'>16</a> <a name='L17'></a><a href='#L17'>17</a> <a name='L18'></a><a href='#L18'>18</a> <a name='L19'></a><a href='#L19'>19</a> <a name='L20'></a><a href='#L20'>20</a> <a name='L21'></a><a href='#L21'>21</a> <a name='L22'></a><a href='#L22'>22</a> <a name='L23'></a><a href='#L23'>23</a> <a name='L24'></a><a href='#L24'>24</a> <a name='L25'></a><a href='#L25'>25</a> <a name='L26'></a><a href='#L26'>26</a> <a name='L27'></a><a href='#L27'>27</a> <a name='L28'></a><a href='#L28'>28</a> <a name='L29'></a><a href='#L29'>29</a> <a name='L30'></a><a href='#L30'>30</a> <a name='L31'></a><a href='#L31'>31</a> <a name='L32'></a><a href='#L32'>32</a> <a name='L33'></a><a href='#L33'>33</a> <a name='L34'></a><a href='#L34'>34</a> <a name='L35'></a><a href='#L35'>35</a> <a name='L36'></a><a href='#L36'>36</a> <a name='L37'></a><a href='#L37'>37</a> <a name='L38'></a><a href='#L38'>38</a> <a name='L39'></a><a href='#L39'>39</a> <a name='L40'></a><a href='#L40'>40</a> <a name='L41'></a><a href='#L41'>41</a> <a name='L42'></a><a href='#L42'>42</a> <a name='L43'></a><a href='#L43'>43</a> <a name='L44'></a><a href='#L44'>44</a> <a name='L45'></a><a href='#L45'>45</a> <a name='L46'></a><a href='#L46'>46</a> <a name='L47'></a><a href='#L47'>47</a> <a name='L48'></a><a href='#L48'>48</a> <a name='L49'></a><a href='#L49'>49</a> <a name='L50'></a><a href='#L50'>50</a> <a name='L51'></a><a href='#L51'>51</a> <a name='L52'></a><a href='#L52'>52</a> <a name='L53'></a><a href='#L53'>53</a> <a name='L54'></a><a href='#L54'>54</a> <a name='L55'></a><a href='#L55'>55</a> <a name='L56'></a><a href='#L56'>56</a> <a name='L57'></a><a href='#L57'>57</a> <a name='L58'></a><a href='#L58'>58</a> <a name='L59'></a><a href='#L59'>59</a> <a name='L60'></a><a href='#L60'>60</a> <a name='L61'></a><a href='#L61'>61</a> <a name='L62'></a><a href='#L62'>62</a> <a name='L63'></a><a href='#L63'>63</a> <a name='L64'></a><a href='#L64'>64</a> <a name='L65'></a><a href='#L65'>65</a> <a name='L66'></a><a href='#L66'>66</a> <a name='L67'></a><a href='#L67'>67</a> <a name='L68'></a><a href='#L68'>68</a> <a name='L69'></a><a href='#L69'>69</a> <a name='L70'></a><a href='#L70'>70</a> <a name='L71'></a><a href='#L71'>71</a></td><td class="line-coverage quiet">                                                                                                                                             </td><td class="text"><pre class="prettyprint lang-js">/** * @description 浪花绘制 * @author SoldierAb * @since 18-12-25 * @class Wave */   class Wave { constructor({ canvasWidth, // 轴长 canvasHeight, // 轴高 waveWidth = 0.055, // 波浪宽度,数越小越宽 waveHeight = 6, // 波浪高度,数越大越高 xOffset = 0, speed = 0.04, colors = ['#DBB77A', '#BF8F3B'], // 波浪颜色 } = {}) { this.points = []; this.startX = 0; this.canvasWidth = canvasWidth; this.canvasHeight = canvasHeight; this.waveWidth = waveWidth; this.waveHeight = waveHeight; this.xOffset = xOffset; this.speed = speed; this.colors = colors; } getChartColor(ctx) { const radius = this.canvasWidth / 2; const grd = ctx.createLinearGradient(radius, radius, radius, this.canvasHeight); grd.addColorStop(0, this.colors[0]); grd.addColorStop(1, this.colors[1]); return grd; } draw(ctx) { ctx.save(); const points = this.points; ctx.beginPath(); for (let i = 0; i < points.length; i += 1) { const point = points[i]; ctx.lineTo(point[0], point[1]); } ctx.lineTo(this.canvasWidth, this.canvasHeight); ctx.lineTo(this.startX, this.canvasHeight); ctx.lineTo(points[0][0], points[0][1]); ctx.fillStyle = this.getChartColor(ctx); ctx.fill(); ctx.restore(); } update({ nowRange, } = {}) { this.points = []; const { startX, waveHeight, waveWidth, canvasWidth, canvasHeight, xOffset, } = this; for (let x = startX; x < startX + canvasWidth; x += 20 / canvasWidth) { const y = Math.sin(((startX + x) * waveWidth) + xOffset); const dY = canvasHeight * (1 - (nowRange / 100)); this.points.push([x, dY + (y * waveHeight)]); } this.xOffset += this.speed; } } export default Wave;</pre></td></tr></table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Fri Jul 24 2020 03:41:21 GMT+0000 (GMT) </div> </div> <script src="../../prettify.js"></script> <script> window.onload = function () { prettyPrint(); }; </script> <script src="../../sorter.js"></script> <script src="../../block-navigation.js"></script> </body> </html>