Vue中实现3D标签云代码示例

本篇文章小编给大家分享一下Vue中实现3D标签云代码示例，文章代码介绍的很详细，小编觉得挺不错的，现在分享给大家供大家参考，有需要的小伙伴们可以来看看。

预览:

代码:

页面部分:

CSS部分:

css;">// 标签云
.tagcloud-all {
  position: relative;
  a {
    position: absolute;
    top: 0px;
    left: 0px;
    color: #fff;
    font-weight: bold;
    text-decoration: none;
    padding: 3px 6px;
    &:hover {
      color: #FF0000;
      letter-spacing: 2px;
    }
  }
}

JS部分:

export default {
  name: "tagcloud",
  data() {
    return {
      tagList: [],
      radius: 120,
      dtr: Math.PI / 180,
      d: 300,
      mcList: [],
      active: false,
      lasta: 1,
      lastb: 1,
      distr: true,
      tspeed: 10,
      size: 250,
      mouseX: 0,
      mouseY: 0,
      howElliptical: 1,
      oList: null,
      oA: null,
      sa: 0,
      ca: 0,
      sb: 0,
      cb: 0,
      sc: 0,
      cc: 0
    }
  },
  methods: {
    // 生成随机数
    getRandomNum() {
      return Math.floor(Math.random() * (255 + 1));
    },
    // 三角函数角度计算
    sineCosine(a, b, c) {
      this.sa = Math.sin(a * this.dtr);
      this.ca = Math.cos(a * this.dtr);
      this.sb = Math.sin(b * this.dtr);
      this.cb = Math.cos(b * this.dtr);
      this.sc = Math.sin(c * this.dtr);
      this.cc = Math.cos(c * this.dtr);
    },
    // 设置初始定位
    positionAll() {
      this.$nextTick(() => {      // 注意: 所有的在onReady方法中执行的方法都需要$nextTick确保所有的标签都已经渲染
        var phi = 0;
        var theta = 0;
        var max = this.mcList.length;
        var aTmp = [];
        var oFragment = document.createDocumentFragment();
        // 随机排序
        for (let i = 0; i  {
          return Math.random()  {           // 注意: 所有的在onReady方法中执行的方法都需要$nextTick确保所有的标签都已经渲染
        var a;
        var b;
        if (this.active) {
          a = (-Math.min(Math.max(-this.mouseY, -this.size), this.size) / this.radius) * this.tspeed;
          b = (Math.min(Math.max(-this.mouseX, -this.size), this.size) / this.radius) * this.tspeed;
        } else {
          a = this.lasta * 0.98;
          b = this.lastb * 0.98;
        }
        this.lasta = a;
        this.lastb = b;
        if (Math.abs(a)  {            // 注意: 所有的在onReady方法中执行的方法都需要$nextTick确保所有的标签都已经渲染
        var l = this.oList.offsetWidth / 2;
        var t = this.oList.offsetHeight / 2;
        for (var i = 0; i  {            // 注意: 所有的在onReady方法中执行的方法都需要$nextTick确保所有的标签都已经渲染
        var aTmp = [];
        for (let i = 0; i  vItem2.cz) {
            return -1;
          } else if (vItem1.cz  {
        item.color = "rgb(" + this.getRandomNum() + "," + this.getRandomNum() + "," + this.getRandomNum() + ")";
      })
      this.tagList = tagListOrg;
      this.onReady();
    },
    // 生成标签云
    onReady() {
      this.$nextTick(() => {
        this.oList = this.$refs.tagcloudall;
        this.oA = this.oList.getElementsByTagName('a')
        var oTag = null;
        for (var i = 0; i  {
          this.active = true;
        }
        this.oList.onmouseout = () => {
          this.active = false;
        }
        this.oList.onmousemove = (event) => {
          var oEvent = window.event || event;

          this.mouseX = oEvent.clientX - (this.oList.offsetLeft + this.oList.offsetWidth / 2);
          this.mouseY = oEvent.clientY - (this.oList.offsetTop + this.oList.offsetHeight / 2);
          this.mouseX /= 5;
          this.mouseY /= 5;
        }
        setInterval(() => {
          this.update()
        }, 30);            // 定时器执行 不能写setInterval(this.update(), 30)
      })
    }
  },
  created() {
    this.$nextTick(() => {
      this.query();
    })
  }
}