vue实现标签云效果的示例

 data: {
   width:700,//svg宽度
   height:700,//svg高度
   tagsNum:20,//标签数量
   RADIUS:200,//球的半径
   speedX:Math.PI/360,//球一帧绕x轴旋转的角度
   speedY:Math.PI/360,//球-帧绕y轴旋转的角度
   tags: []
 }
 computed:{
   CX(){//球心x坐标
     return this.width/2;
   },
   CY(){//球心y坐标
     return this.height/2;
   }
 },

 created(){//初始化标签位置
   let tags=[];
   for(let i = 0; i 

  rotateX(angleX){
    var cos = Math.cos(angleX);
    var sin = Math.sin(angleX);
    for(let tag of this.tags){
      var y1 = (tag.y- this.CY) * cos - tag.z * sin + this.CY;
      var z1 = tag.z * cos + (tag.y- this.CY) * sin;
      tag.y = y1;
      tag.z = z1;
    }
  },
  rotateY(angleY){
    var cos = Math.cos(angleY);
    var sin = Math.sin(angleY);
    for(let tag of this.tags){
      var x1 = (tag.x - this.CX) * cos - tag.z * sin + this.CX;
      var z1 = tag.z * cos + (tag.x - this.CX) * sin;
      tag.x = x1;
      tag.z = z1;
    }
  },

  mounted(){//使球开始旋转
    setInterval(() => {
      this.rotateX(this.speedX);
      this.rotateY(this.speedY);
    }, 17)
  },