d3实现概念时钟指示效果-html代码-BFW代码库

代码语言：html

所属分类：动画

代码描述：d3实现概念时钟指示效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<style>
body {
  background: #454555;
}

.polar-gantt {
  width: 320px;
  height: 320px;
  margin: 20px auto 0;
}
.polar-gantt svg {
  width: 100%;
  height: 100%;
}
.polar-gantt svg .hours-hand,
.polar-gantt svg .minutes-hand,
.polar-gantt svg .seconds-hand {
  stroke-linecap: round;
  stroke: rgba(255, 255, 255, 0.5);
}
.polar-gantt svg .hours-hand {
  stroke-width: 3;
}
.polar-gantt svg .minutes-hand {
  stroke-width: 2;
}
.polar-gantt svg .seconds-hand {
  stroke-width: 1;
}
.polar-gantt svg .hands-cover {
  fill: #fff;
}
.polar-gantt svg .hours-tick {
  stroke: #fff;
}
.polar-gantt svg .hours-label {
  font-size: 10px;
  fill: rgba(255, 255, 255, 0.5);
}
</style>

</head>
<body translate="no">

<div class="polar-gantt">
<div id="target" ></div>
</div>

<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/d3.v3.js"></script>

<script>
console.clear();

class PolarGantt {
  constructor() {
    this.radians = Math.PI / 180;
  }

  init(opt) {
    let container = d3.select(opt.sel),
    measures = container.node().getBoundingClientRect(),
    t = new Date();

    this.clockRadius = measures.width * 0.8 / 2;
    this.margin = measures.width * 0.2 / 4;
    this.width = (this.clockRadius + this.margin * 2) * 2;
    this.height = (this.clockRadius + this.margin * 2) * 2;
    this.hoursHandLength = this.clockRadius - 18;
    this.minutesHandLength = this.clockRadius / 2;
    this.secondsHandLength = this.clockRadius / 1.25;
    this.hoursTickStart = this.clockRadius;
    this.hoursTickLength = -8;
    this.hoursLabelRadius = this.clockRadius - 40;
    this.hoursLabelYOffset = 6;
    this.hoursScale = d3.scale.linear().range([0, 330]).domain([0, 23]);
    this.minutesScale = this.secondsScale = d3.scale.linear().range([0, 354]).domain([0, 59]);

    this.hoursData = {
      value: t.getHours() + t.getMinutes() / 60,
      length: -this.hoursHandLength,
      scale: this.hoursScale };

    this.minutesData = {
      value: t.getMinutes(),
      length: -this.minutesHandLength,
      scale: this.minutesScale };

    this.secondsData = {
      value: t.getSeconds(),
      length: -this.secondsHandLength,
      scale: this.secondsScale };

    this.color = d3.scale.linear().
    range(["hsl(-180,50%,50%)", "hsl(180,50%,50%)"]).
    domain([0, this._fields().length - 1]).
    interpolate(this._interpolateHsl);

    this._draw(container);

    setInterval(() => {
      this._updateData();
      this._moveHands();
    }, 1000);
  }

  _arc(data) {
    let t0 = data.start.getHours() + data.start.getMinutes() / 60,
    t1 = data.end.getHours() + data.end.getMinutes() / 60,
    scale = this.hoursData.scale,
    ratio = (this.clockRadius - 8) / this._fields().length,
    padding = 0.3;

    let arc = d3.svg.arc().
    startAngle(scale(t0) * this.radians).
    endAngle(scale(t1) * this.radians).
    innerRadius(d => (d.index + padding) * ratio).
    outerRadius(d => (d.index - padding) * ratio + ratio).
    cornerRadius(ratio);

    return arc(data);
  }

  _draw(container) {
    this._updateData();

    let svg = container.append('svg').
    attr({
      width: this.width,
      height: this.height });


    // Lower Container
    let face = svg.append('g').
    attr({
      id: 'clock-face',
      transform: [
      'translate(',
      this.clockRadius + this.margin * 2,
      ',',
      this.clockRadius + this.margin * 2,
      ')'].join('') });


    // Outer Arc (frame)
    face.append('path').
    attr('d', d3.svg.arc().
    startAngle(0).
    endAngle(Math.PI * 2).
    innerRadius(this.clockRadius + this.hourTickLength).
    outerRadius(this.clockRadius)).
    style('fill', 'rgba(24, 24, 31, 0.8)');

    // Inner Circle (background)
    face.append('circle').
    attr({
      cx: 0,
      cy: 0,
      r: this.clockRadius,
      fill: 'rgba(31, 30, 39, 0.8)' });


    // Ticks
    face.selectAll('.hours-tick').
    data([0, 6, 12, 18]).enter().
    append('line').
    attr({
      class: 'hours-tick',
      x1: 0.........完整代码请登录后点击上方下载按钮下载查看