Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <div id="app">
  <div class="line-chart unselectable">
    <svg width="622px" height="364px" viewBox="0 0 622 364" version="1.1">
      <defs>
        <circle id="circle" cx="10" cy="0" r="10"></circle>
        <filter x="-37.5%" y="-37.5%" width="175.0%" height="175.0%" filterUnits="objectBoundingBox" id="filter">
          <feOffset dx="0" dy="0" in="SourceAlpha" result="shadowOffsetOuter1"></feOffset>
          <feGaussianBlur stdDeviation="2.5" in="shadowOffsetOuter1" result="shadowBlurOuter1"></feGaussianBlur>
          <feColorMatrix values="0 0 0 0 0   0 0 0 0 0   0 0 0 0 0  0 0 0 0.1 0" type="matrix" in="shadowBlurOuter1"></feColorMatrix>
        </filter>
      </defs>
      <g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
        <g transform="translate(-64.000000, -504.000000)">
          <g transform="translate(64.000000, 504.000000)">
            <g transform="translate(0.000000, 60.000000)" fill="#ECECEC">
              <rect transform="translate(28.000000, 123.500000) rotate(-270.000000) translate(-28.000000, -123.500000) " x="-94" y="123" width="244" height="1"></rect>
              <rect transform="translate(142.000000, 123.500000) rotate(-270.000000) translate(-142.000000, -123.500000) " x="20" y="123" width="244" height="1"></rect>
              <rect transform="translate(255.000000, 123.500000) rotate(-270.000000) translate(-255.000000, -123.500000) " x="133" y="123" width="244" height="1"></rect>
              <rect transform="translate(369.000000, 123.500000) rotate(-270.000000) translate(-369.000000, -123.500000) " x="247" y="123" width="244" height="1"></rect>
              <rect transform="translate(482.000000, 123.500000) rotate(-270.000000) translate(-482.000000, -123.500000) " x="360" y="123" width="244" height="1"></rect>
              <rect transform="translate(595.000000, 123.500000) rotate(-270.000000) translate(-595.000000, -123.500000) " x="473" y="123" width="244" height="1"></rect>
              <rect transform="translate(311.500000, 123.500000) scale(1, -1) translate(-311.500000, -123.500000) " x="28" y="123" width="567" height="1"></rect>
              <rect x="0" y="61" width="622" height="1"></rect>
              <rect x="0" y="183" width="622" height="1"></rect>
            </g>
            <g id="曲线" transform="translate(0, 60.000000)">
              <path :d="path" stroke="#47E0FF" stroke-width="6" stroke-linecap="round" transform="translate(10)"></path>
              <g :transform="'translate(' + value.x + ',' + value.y + ')'" v-for="(value, index) in valueArr" :key="index">
                <use fill="black" fill-opacity="1" filter="url(#filter)" xlink:href="#circle"></use>
                <use fill="#47E0FF" fill-rule="evenodd" xlink:href="#circle"></use>
              </g>
            </g>
          </g>
        </g>
      </g>
    </svg>
    <button @click="reload">Reload</button>
  </div>
</div>
              
            
!

CSS

              
                .line-chart {
  width: 100%;
  svg {
    margin: auto;
    display: block;
    max-width: 100%;
    width: 622px;
    height: 364px;
  }
}
button {
  display: block;
  margin: auto;
  outline:none;
  height: 40px;
  text-align: center;
  width: 130px;
  border-radius:40px;
  background: #fff;
  border: 2px solid #1ECD97;
  color: #1ECD97;
  letter-spacing:1px;
  text-shadow:0;
  font:{
    size:12px;
    weight:bold;
  }
  cursor: pointer;
  transition: all 0.25s ease;
  &:hover {
    color:white;
    background: #1ECD97;
  }
  &:active {
    //letter-spacing: 2px;
    letter-spacing: 2px ;
  }
}
              
            
!

JS

              
                function mapping (val, inputMin, inputMax, outputMin, outputMax) {
  return ((outputMax - outputMin) * ((val - inputMin) / (inputMax - inputMin))) + outputMin
}
function clone (obj) {
  return JSON.parse(JSON.stringify(obj))
}
const MAX_HEIGHT = 244
const MIN_HEIGHT = 0

function animate(time) {
    requestAnimationFrame(animate);
    TWEEN.update(time);
}
requestAnimationFrame(animate)

let valueArr = [
  {
    x: 0.136,
    y: 0
  },
  {
    x: 114.136,
    y: 0
  },
  {
    x: 227.136,
    y: 0
  },
  {
    x: 341.136,
    y: 0
  },
  {
    x: 454.136,
    y: 0
  },
  {
    x: 568.136,
    y: 0
  }
].map((item, index) => {
  return {
    ...item,
    y: MAX_HEIGHT * 0.5,
    startY: MIN_HEIGHT + (MAX_HEIGHT - MIN_HEIGHT) / 2,
    x: item.x + 18
  }
})
const DEFAULT_VALUE = clone(valueArr)
let animation = {
  progress: 0
}
new Vue({
  el: '#app',
  data () {
    return {
      valueArr,
      animation,
      duration: 1000,
      data: []
    }
  },
  watch: {
    data (val) {
      this.formatValues(val)
      this.doAnimation()
    }
  },
  mounted () {
    this.data = this.genRamdomValue()
  },
  computed: {
    path () {
      let steps = []
      this.valueArr.forEach((curr, index) => {
        if (index === 0) {
          // 移动到起点
          steps.push('M' + curr.x + ',' + curr.y)
        }
        if (index !== this.valueArr.length - 1) {
          let next = this.valueArr[index + 1]
          // 两个控制点坐标
          var ctrl1 = {
            x: (curr.x + next.x) * 0.5,
            y: curr.y
          }
          var ctrl2 = {
            x: ctrl1.x,
            y: next.y
          }
          steps.push('C' + ctrl1.x + ',' + ctrl1.y)
          steps.push(ctrl2.x + ',' + ctrl2.y)
          steps.push(next.x + ',' + next.y)
        }
      })
      return steps.join(' ')
    }
  },
  methods: {
    reload () {
       this.valueArr = clone(DEFAULT_VALUE)
       this.data = this.genRamdomValue()
    },
    genRamdomValue () {
      return this.valueArr.map(() => {
        return {
          value: Math.random()
        }
      })
    },
    formatValues (values) {
      this.valueArr.forEach((item, index) => {
        item.targetY = mapping(values[index].value, 0, 1, MIN_HEIGHT, MAX_HEIGHT)
      })
    },
    doAnimation () {
      animation.progress = 0
      new TWEEN.Tween(animation)
        .delay(1000)
        .to({progress: 1}, this.duration, TWEEN.Easing.Quadratic.Out)
        .onUpdate(this.onUpdate)
        .start()
    },
    onUpdate () {
      this.valueArr.forEach((item) => {
        item.y = item.startY + (item.targetY - item.startY) * this.animation.progress
      })
    }
  }
})
              
            
!
999px

Console